Features
•
Crystal unit for audio-visual, office equipment
•
Ultra-miniature and low profile (2.5x2.0x0.45mm)
• Ceramic package
• A lead free product
• Reflow compatible
Applications
• Digital Electronics
• Audio-Visual, Office Equipment
Pb Free
Specifications
Items Symbol Specification Units Remarks
f_nom
OT
f_tol
f_tem
R1
DL
CL
T_use
T_stg
13560 to 60000
Fundamental
50
50
Table 1
Table 2
8
10 to 70
40 to 85
kHz
––––
10-6
10-6
ohm
W
pF
°C
°C
@ 25°C
ref.@ 25°C Over Operating Temp. Range
How to Order
②① ③ ⑦⑥⑤④
①Code
②Typical Frequencies
③Load Capacitance
④Frequency Stability
⑤Operating Temperature Range
⑥Frequency Temperature Stability
⑦Special
*Please inquire about frequencies other than the above.
CX2520SB 27000 D0 P E S ZZ
Code Freq.(kHz) Code Freq.(kHz)
13560
16000
18000
20000
24000
26000
27000
27120
13560.000
16000.000
18000.000
20000.000
24000.000
26000.000
27000.000
27120.000
30000
32000
33000
33333
40000
48000
54000
30000.000
32000.000
33000.000
33333.000
40000.000
48000.000
54000.000
8pF
5010-6
10°C to 70°C
5010-6
D0
P
E
S
ZZ Custom Specification
Table1 Motional Series Resistances
Dimensions (Unit : mm) Recommended Land Pattern (Unit : mm)
2.50.1
1.0 0.75
2.00.1
0.450.1
0.650.7
CONNECTION
(TOP VIEW)
NC
HOT
HOT
GND
#4 #3
#1 #2
#4 #3
#1 #2
#1 #2
#4 #3
1.0
1.2 1.20.5
1.0 0.3
Table2 Level of Drive
Frequency Range
Motional Series Resistance
Units
ohm
300
150
100
50
13560 to 15999kHz
16000 to 19999kHz
20000 to 39999kHz
40000 to 60000kHz
Frequency Range Level of Drive Units
13560 to 60000kHz 10 (100 max.) W
Frequency Range
Overtone Order
Frequency Tolerance
Frequency Temp. Characteristics
Motional Series Resistance
Level of Drive
Load Capacitance
Operating Temp. Range
Storage Temp. Range
* Please inqurie about specifications other than the above.
RoHS Compliant
Crystal Units
Surface Mount Type CX2520SB (CX-2520SB)
2.5×2.0mm for Audio & Visual, Office Equipment
- 34 -
Features
• Reference frequency
for telecommunication systems
• Reflow compatible
• Using ceramic package resulting
in high reliability
• Small and low profile
Applications
• Mobile Communications, Bluetooth,
Wireless LAN
Pb Free
Specifications
Table1 Motional Series Resistances
Dimensions (Unit : mm) Recommended Land Pattern (Unit : mm)
2.50.1
1.0 0.75
2.00.1
0.450.1
0.650.7
CONNECTION
(TOP VIEW)
NC
HOT
HOT
GND
#4 #3
#1 #2
#1 #2
#4 #3
1.0
1.2 1.20.5
1.0 0.3
Table2 Level of Drive
#4 #3
#1 #2
Items Symbol Specification Units Remarks
f_nom
OT
f_tol
f_tem
R1
DL
CL
T_use
T_stg
13560 to 60000
Fundamental
10
15
Table 1
Table 2
8
30 to 85
40 to 85
kHz
––––
10-6
10-6
ohm
W
pF
°C
°C
@ 25°C
ref.@ 25°C Over Operating Temp. Range
How to Order
②① ③ ⑦⑥⑤④
①Code
②Typical Frequencies
③Load Capacitance
④Frequency Stability
⑤Operating Temperature Range
⑥Frequency Temperature Stability
⑦Special
*Please inquire about frequencies other than the above.
CX2520SB 32000 D0 F L J ZZ
8pF
1010-6
30°C to 85°C
1510-6
D0
F
L
J
ZZ Custom Specification
Code Freq.(kHz) Code Freq.(kHz)
13560
16000
18000
19200
24000
26000
13560.000
16000.000
18000.000
19200.000
24000.000
26000.000
27120
32000
38400
40000
44000
27120.000
32000.000
38400.000
40000.000
44000.000
Frequency Range
Motional Series Resistance
Units
ohm
300
150
100
50
13560 to 15999kHz
16000 to 19999kHz
20000 to 39999kHz
40000 to 60000kHz
Frequency Range Level of Drive Units
13560 to 60000kHz 10 (100 max.) W
Frequency Range
Overtone Order
Frequency Tolerance
Frequency Temp. Characteristics
Motional Series Resistance
Level of Drive
Load Capacitance
Operating Temp. Range
Storage Temp. Range
* Please inqurie about specifications other than the above.
RoHS Compliant
2.5×2.0mm for Mobile Communications, SRWI
Crystal Units
Surface Mount Type CX2520SB (CX-2520SB)
- 35 -
Features
•
Crystal unit for audio-visual, office equipment
• Miniature and low profile (3.2x2.5x0.55mm)
• Ceramic package
• A lead free product
• Reflow compatible
Applications
• Digital Electronics
• Audio-Visual, Office Equipment
Specifications
Table1 Motional Series Resistances
Dimensions (Unit : mm) Recommended Land Pattern (Unit : mm)
Table2 Level of Drive
1.05
3.6
1.3 1.3
1.05
1.85
3.20.1
2.50.1
0.550.05
0.75
1.2
1.0
CONNECTION
(TOP VIEW)
GND
HOT
HOT
GND
4-R0.2
#4 #3
#1 #2
#1 #2
#4 #3
1.0 1.0
#4 #3
#1 #2
Items Symbol Specification Units Remarks
f_nom
OT
f_tol
f_tem
R1
DL
CL
T_use
T_stg
12000 to 54000
Fundamental
50
50
Table 1
Table 2
8
10 to 70
40 to 85
kHz
––––
10-6
10-6
ohm
W
pF
°C
°C
@ 25°C
ref.@ 25°C Over Operating Temp. Range
How to Order
②① ③ ⑦⑥⑤④
①Code
②Typical Frequencies
③Load Capacitance
④Frequency Stability
⑤Operating Temperature Range
⑥Frequency Temperature Stability
⑦Special
*Please inquire about frequencies other than the above.
CX3225SB 24000 D0 P E S ZZ
Code Freq.(kHz) Code Freq.(kHz)
12000
13560
14318
14745
16000
18432
20000
22579
24000
24576
12000.000
13560.000
14318.180
14745.600
16000.000
18432.000
20000.000
22579.000
24000.000
24576.000
25000
26000
27000
27120
30000
33000
33333
40000
48000
54000
25000.000
26000.000
27000.000
27120.000
30000.000
33000.000
33333.000
40000.000
48000.000
54000.000
8pF
5010-6
10°C to 70°C
5010-6
D0
P
E
S
ZZ Custom Specification
Frequency Range
Motional Series Resistance
Units
ohm
300
200
100
50
12000 to 13999kHz
14000 to 15999kHz
16000 to 26999kHz
27000 to 54000kHz
Frequency Range Level of Drive Units
12000 to 54000kHz 10 (100 max.) W
Frequency Range
Overtone Order
Frequency Tolerance
Frequency Temp. Characteristics
Motional Series Resistance
Level of Drive
Load Capacitance
Operating Temp. Range
Storage Temp. Range
* Please inqurie about specifications other than the above.
Pb Free
RoHS Compliant
Crystal Units
Surface Mount Type CX3225SB (CX-101F)
3.2×2.5mm for Audio & Visual, Office Equipment
- 36 -
Features
• Reference frequency
for telecommunication systems
• Reflow compatible
• Using ceramic package resulting
in high reliability
• Small and low profile
Applications
• Mobile Communications, Bluetooth,
Wireless LAN
Specifications
Table1 Motional Series Resistances
Dimensions (Unit : mm) Recommended Land Pattern (Unit : mm)
Table2 Level of Drive
1.05
3.6
1.3 1.3
1.05
1.85
3.20.1
2.50.1
0.550.05
0.75
1.2
1.0
CONNECTION
(TOP VIEW)
GND
HOT
HOT
GND
4-R0.2
#4 #3
#1 #2
#1 #2
#4 #3
#4 #3
#1 #2
1.0 1.0
Items Symbol Specification Units Remarks
f_nom
OT
f_tol
f_tem
R1
DL
CL
T_use
T_stg
12000 to 54000
Fundamental
10
15
Table 1
Table 2
8
30 to 85
40 to 85
kHz
––––
10-6
10-6
ohm
W
pF
°C
°C
@ 25°C
ref.@ 25°C Over Operating Temp. Range
How to Order
②① ③ ⑦⑥⑤④
①Code
②Typical Frequencies
③Load Capacitance
④Frequency Stability
⑤Operating Temperature Range
⑥Frequency Temperature Stability
⑦Special
*Please inquire about frequencies other than the above.
CX3225SB 26000 D0 F L J ZZ
8pF
1010-6
30°C to 85°C
1510-6
D0
F
L
J
ZZ Custom Specification
Code Freq.(kHz) Code Freq.(kHz)
12000
13000
13560
16000
19200
12000.000
13000.000
13560.000
16000.000
19200.000
20000
26000
32000
38400
40000
20000.000
26000.000
32000.000
38400.000
40000.000
Frequency Range
Motional Series Resistance
Units
ohm
300
200
100
50
12000 to 13999kHz
14000 to 15999kHz
16000 to 26999kHz
27000 to 54000kHz
Frequency Range Level of Drive Units
12000 to 54000kHz 10 (100 max.) W
Frequency Range
Overtone Order
Frequency Tolerance
Frequency Temp. Characteristics
Motional Series Resistance
Level of Drive
Load Capacitance
Operating Temp. Range
Storage Temp. Range
* Please inqurie about specifications other than the above.
Pb Free
RoHS Compliant
3.2×2.5mm for Mobile Communications, SRWI
Crystal Units
Surface Mount Type CX3225SB (CX-101F)
- 37 -
* Please inqurie about specifications other than the above.
Pb Free
RoHS Compliant
Features
• Reference frequency
for telecommunication systems
• Reflow compatible
• Using ceramic package resulting
in high reliability
• Small and low profile
Applications
• Mobile Communications, Bluetooth,
Wireless LAN
Dimensions (Unit : mm) Recommended Land Pattern (Unit : mm)
0.45
2.75
3.0
1.151.15
1.6
1.4 1.4
GND needs to be
connected to the case.
4.00.2
0.750.1
2.50.2
4-R0.2
0.7
2
1.0
0.9
#4
#1
#3
#1
#4
#2
#2
#3
1.0
CONNECTION
(TOP VIEW)
GND
HOT
HOT
GND
#4 #3
#1 #2
Specifications
Table1 Motional Series Resistances Table2 Level of Drive
Items Symbol Specification Units Remarks
f_nom
OT
f_tol
f_tem
R1
DL
CL
T_use
T_stg
12000 to 40000
Fundamental
10
15
Table 1
Table 2
10
30 to 85
40 to 85
kHz
––––
10-6
10-6
ohm
W
pF
°C
°C
@ 25°C
ref.@ 25°C Over Operating Temp. Range
How to Order
②① ③ ⑦⑥⑤④
①Code
②Typical Frequencies
③Load Capacitance
④Frequency Stability
⑤Operating Temperature Range
⑥Frequency Temperature Stability
⑦Special
*Please inquire about frequencies other than the above.
CX4025SB 26000 F0 F L J ZZ
Code Freq.(kHz) Code Freq.(kHz)
12000
13000
16000
20000
12000.000
13000.000
16000.000
20000.000
26000
32000
40000
26000.000
32000.000
40000.000
10pF
1010-6
30°C to 85°C
1510-6
F0
F
L
J
ZZ Custom Specification
Frequency Range
Motional Series Resistance
Units
ohm
80
50
12000 to 19999kHz
20000 to 40000kHz
Frequency Range Level of Drive Units
12000 to 40000kHz 10 (100 max.) W
Frequency Range
Overtone Order
Frequency Tolerance
Frequency Temp. Characteristics
Motional Series Resistance
Level of Drive
Load Capacitance
Operating Temp. Range
Storage Temp. Range
4.0×2.5mm for Mobile Communications, SRWI
Crystal Units
Surface Mount Type CX4025SB (CX-4025S)
- 38 -
Pb Free
RoHS Compliant
Features
• Reference frequency
for telecommunication systems
• Reflow compatible
• Using ceramic package resulting
in high reliability
• Small and low profile
Applications
• Mobile Communications, Bluetooth,
Wireless LAN
Dimensions (Unit : mm) Recommended Land Pattern (Unit : mm)
Terminals 2 and 4 need to be
connected to the case.
7.0
1.0
4.2
2.1
4.55
2.45 2.45
2.6
4.90.1
3.10.1
CONNECTION
(TOP VIEW)
0.70.1
1.3
2.3
1.3
0.9
4-R0.2
GND
HOT
HOT
GND
#4 #3
#4 #3 #1 #2
#1 #2
#4 #3
#1 #2
Specifications
How to Order
②① ③ ⑦⑥⑤④
①Code
②Typical Frequencies
③Load Capacitance
④Frequency Stability
⑤Operating Temperature Range
⑥Frequency Temperature Stability
⑦Special
*Please inquire about frequencies other than the above.
CX5032SB 26000 F0 F L J ZZ
Code Freq.(kHz) Code Freq.(kHz)
12000
12800
13000
14400
16000
12000.000
12800.000
13000.000
14400.000
16000.000
19200
26000
32000
40000
48000
19200.000
26000.000
32000.000
40000.000
48000.000
10pF
1010-6
30°C to 85°C
1510-6
F0
F
L
J
ZZ Custom Specification
Items
Symbol
Specification Units Remarks
f_nom
OT
f_tol
f_tem
R1
DL
CL
T_use
T_stg
9843.75 to 49999
Fundamental
10
15
Table 1
Table 2
10
30 to 85
40 to 85
kHz
––––
10-6
10-6
ohm
W
pF
°C
°C
@ 25°C
ref.@ 25°C Over Operating Temp. Range
50 to 120(MHz)
3rd Overtone
* Please inqurie about specifications other than the above.
Frequency Range
Overtone Order
Frequency Tolerance
Frequency Temp. Characteristics
Motional Series Resistance
Level of Drive
Load Capacitance
Operating Temp. Range
Storage Temp. Range
Frequency Range Level of Drive Units
W
9843.75 to 49999kHz
50 to 120(MHz)(3rdO.T)
10 (100 max.)
10 (100 max.)
Table1 Motional Series Resistances Table2 Level of Drive
Frequency Range
Motional Series Resistance
Units
ohm
150
80
50
40
80
9843.75 to 9999kHz
10000 to 11999kHz
12000 to 25999kHz
26000 to 49999kHz
50 to 120(MHz)
5.0×3.2mm for Mobile Communications, SRWI
Crystal Units
Surface Mount Type CX5032SB (CX-96F)
- 39 -
Features
•
Crystal unit for audio-visual, office equipment
• Small and low profile (5.0x3.2x1.0mm)
• Ceramic package
• Product with lead free terminations
• Reflow compatible
Applications
• Digital Electronics
• Audio-Visual, Office Equipment
Dimensions (Unit : mm) Recommended Land Pattern (Unit : mm)
2.4
4.1
1.91.9
CONNECTION
5.00.2
2.4 1.3
3.20.2
2.0
1.0
0.1
0.2
1.3
Specifications
Items Symbol Specification Units Remarks
f_nom
OT
f_tol
f_tem
R1
DL
CL
T_use
T_stg
9843.75 to 54000
Fundamental
50
50
Table 1
Table 2
12
10 to 70
40 to 85
kHz
––––
10-6
10-6
ohm
W
pF
°C
°C
@ 25°C
ref.@ 25°C Over Operating Temp. Range
How to Order
②① ③ ⑦⑥⑤④
①Code
②Typical Frequencies
③Load Capacitance
④Frequency Stability
⑤Operating Temperature Range
⑥Frequency Temperature Stability
⑦Special
*Please inquire about frequencies other than the above.
CX5032GB 48000 H0 P E S ZZ
Code Freq.(kHz) Code Freq.(kHz)
10000
12000
14318
14745
16934
18432
22579
10000.000
12000.000
14318.180
14745.600
16934.400
18432.000
22579.200
24000
24545
24576
27000
36000
48000
54000
24000.000
24545.450
24576.000
27000.000
36000.000
48000.000
54000.000
12pF
5010-6
10°C to 70°C
5010-6
H0
P
E
S
ZZ Custom Specification
Frequency Range
Overtone Order
Frequency Tolerance
Frequency Temp. Characteristics
Motional Series Resistance
Level of Drive
Load Capacitance
Operating Temp. Range
Storage Temp. Range
Frequency Range Level of Drive Units
W
9843.75 to 15999kHz
16000 to 24999kHz
25000 to 54000kHz
10 (500 max.)
10 (300 max.)
10 (100 max.)
Frequency Range
Motional Series Resistance
Units
ohm
9843.75 to 11999kHz
12000 to 13999kHz
14000 to 29999kHz
30000 to 54000kHz
200
150
100
50
Table1 Motional Series Resistances
* Please inqurie about specifications other than the above.
Table2 Level of Drive
RoHS Compliant
5.0×3.2mm for Audio & Visual, Office Equipment
Crystal Units
Surface Mount Type CX5032GB (CX-53F)
- 40 -
8.0×4.5mm for Audio & Visual, Office Equipment
Crystal Units
Surface Mount Type CX8045GB (CX-8045G)
- 41 -
Features
•
Crystal unit for audio-visual, office equipment
• Small and low profile (11.8x5.5x1.8mm)
• Ceramic package
• Product with lead free terminations
• Reflow compatible
Applications
• Digital Electronics
• Audio-Visual, Office Equipment
Dimensions (Unit : mm) Recommended Land Pattern (Unit : mm)
7.7
5.0
2.5
4.0
6.5
2.7
11.80.3
5.50.3
1.80.2
7.0
CONNECTION
2.0
2.5 1.5
Table1 Motional Series Resistances Table2 Level of Drive
* Please inqurie about specifications other than the above.
Frequency Range Level of Drive Units
W
3500 to 15999kHz
16000 to 28999kHz
29 to 60MHz
10 (500 max.)
10 (300 max.)
10 (300 max.)
Frequency Range
Motional Series Resistance
Units
ohm
3500 to 3999kHz
4000 to 7999kHz
8000 to 11999kHz
12000 to 28999kHz
29 to 60MHz
300
200
120
100
150
Specifications
How to Order
②① ③ ⑦⑥⑤④
①Code
②Typical Frequencies
③Load Capacitance
④Frequency Stability
⑤Operating Temperature Range
⑥Frequency Temperature Stability
⑦Special
*Please inquire about frequencies other than the above.
CXB855GB 03579 H0 P E S ZZ
Code Freq.(kHz) Code Freq.(kHz)
03579
03686
04000
06000
08000
12000
3579.545
3686.400
4000.000
6000.000
8000.000
12000.000
14318
16000
16934
19660
20000
14318.180
16000.000
16934.400
19660.800
20000.000
12pF
5010-6
10°C to 70°C
5010-6
H0
P
E
S
ZZ Custom Specification
Items
Symbol
Specification Units Remarks
f_nom
OT
f_tol
f_tem
R1
DL
CL
T_use
T_stg
3500 to 28999
Fundamental
50
50
Table 1
Table 2
12
10 to 70
40 to 85
kHz
––––
10-6
10-6
ohm
W
pF
°C
°C
@ 25°C
ref.@ 25°C Over Operating Temp. Range
29 to 60(MHz)
3rd Overtone
Frequency Range
Overtone Order
Frequency Tolerance
Frequency Temp. Characteristics
Motional Series Resistance
Level of Drive
Load Capacitance
Operating Temp. Range
Storage Temp. Range
RoHS Compliant
11.8×5.5mm for Audio & Visual, Office Equipment
Crystal Units
Surface Mount Type CXB855GB (CX-5FD)
- 42 -
Features
•
Crystal unit for audio-visual, office equipment
• Metal package, leaded type
• A resistance weld hermetic sealed type
• Suitable for high density assembly
and mass production
Applications
• Digital Electronics
• Audio-Visual, Office Equipment
Table1 Motional Series Resistances Table2 Level of Drive
* Please inqurie about specifications other than the above.
Frequency Range
Motional Series Resistance
Units
ohm
3200 to 3499kHz
3500 to 4099kHz
4100 to 4799kHz
4800 to 5999kHz
6000 to 11999kHz
12000 to 13499kHz
13500 to 33999kHz
30 to 60MHz
300
150
120
100
90
70
50
150
Frequency Range Level of Drive Units
W
3200 to 15999kHz
16000 to 24999kHz
25000 to 33999kHz
30 to 60MHz
10 (500 max.)
10 (300 max.)
10 (100 max.)
10 (300 max.)
(Unit : mm)
Pb Free
3.8max.
5.0max.
3.5max.
11.0max.
10.3max.
201
0.430.05
4.880.2
Recommended Land Pattern
Specifications
Items
Symbol
Specification Units Remarks
f
_nom
OT
f
_tol
f
_tem
R1
DL
CL
T
_use
T
_stg
3200 to 33999, 30 to 60(MHz)
Fundamental, 3rd Overtone
50
50
Table 1
Table 2
12
10 to 70
40 to 85
kHz
––––
10-6
10-6
ohm
W
pF
°C
°C
@ 25°C
ref.@ 25°C Over Operating Temp. Range
How to Order
②① ③ ⑦⑥⑤④
①Code
②Typical Frequencies
③Load Capacitance
④Frequency Stability
⑤Operating Temperature Range
⑥Frequency Temperature Stability
⑦Special
*Please inquire about frequencies other than the above.
CXH49SFB 03579 H0 P E S ZZ
Code Freq.(kHz) Code Freq.(kHz)
03200
03579
03686
04000
04194
04332
04433
04500
04915
06000
06144
07200
07372
08000
10000
10240
10738
3200.000
3579.545
3686.400
4000.000
4194.304
4332.000
4433.619
4500.000
4915.200
6000.000
6144.000
7200.000
7372.800
8000.000
10000.000
10240.000
10738.635
11000
11059
12000
12288
13500
14318
16000
16934
17280
17734
20000
21477
24000
24576
25000
27000
11000.000
11059.200
12000.000
12288.000
13500.000
14318.180
16000.000
16934.400
17280.000
17734.476
20000.000
21477.270
24000.000
24576.000
25000.000
27000.000
12pF
50
10
-6
10
°C
to
70
°C
50
10
-6
H0
P
E
S
ZZ
Custom Specification
Frequency Range
Overtone Order
Frequency Tolerance
Frequency Temp. Characteristics
Motional Series Resistance
Level of Drive
Load Capacitance
Operating Temp. Range
Storage Temp. Range
RoHS Compliant
for Audio & Visual, Office Equipment
Crystal Units
Leaded Type CXH49SFB (HC-49/U-S)
- 43 -
Features
•
Crystal unit for audio-visual, office equipment
• Metal package, leaded type
• A resistance weld hermetic sealed type
• Suitable for high density assembly
and mass production
Applications
• Digital Electronics
• Audio-Visual, Office Equipment
Table1 Motional Series Resistances Table2 Level of Drive
Specifications
How to Order
②① ③ ⑦⑥⑤④
①Code
②Typical Frequencies
③Load Capacitance
④Frequency Stability
⑤Operating Temperature Range
⑥Frequency Temperature Stability
⑦Special
*Please inquire about frequencies other than the above.
CXZ49GFB 03579 H0 P E S ZZ
12pF
50
10
-6
10
°C
to
70
°C
50
10
-6
H0
P
E
S
ZZ Custom Specification
Code Freq.(kHz) Code Freq.(kHz)
03200
03579
03686
04000
04194
04332
04433
04500
04915
06000
06144
07200
07372
08000
10000
10240
10738
3200.000
3579.545
3686.400
4000.000
4194.304
4332.000
4433.619
4500.000
4915.200
6000.000
6144.000
7200.000
7372.800
8000.000
10000.000
10240.000
10738.635
11000
11059
12000
12288
13500
14318
16000
16934
17280
17734
20000
21477
24000
24576
25000
27000
11000.000
11059.200
12000.000
12288.000
13500.000
14318.180
16000.000
16934.400
17280.000
17734.476
20000.000
21477.270
24000.000
24576.000
25000.000
27000.000
f_nom
OT
f_tol
f_tem
R1
DL
CL
T_use
T_stg
3200 to 33999, 30 to 60(MHz)
Fundamental, 3rd Overtone
50
50
Table 1
Table 2
12
10 to 70
40 to 85
kHz
––––
10-6
10-6
ohm
W
pF
°C
°C
@ 25°C
ref.@ 25°C Over Operating Temp. Range
Recommended Land Pattern
* Please inqurie about specifications other than the above.
Frequency Range
Motional Series Resistance
Units
ohm
3200 to 3499kHz
3500 to 4099kHz
4100 to 4799kHz
4800 to 5999kHz
6000 to 11999kHz
12000 to 13499kHz
13500 to 33999kHz
30 to 60MHz
300
150
120
100
90
70
50
150
Frequency Range Level of Drive Units
W
3200 to 15999kHz
16000 to 24999kHz
25000 to 33999kHz
30 to 60MHz
10 (500 max.)
10 (300 max.)
10 (100 max.)
10 (300 max.)
Dimensions (Unit : mm)
Pb Free
Items
Symbol
Specification Units Remarks
Frequency Range
Overtone Order
Frequency Tolerance
Frequency Temp. Characteristics
Motional Series Resistance
Level of Drive
Load Capacitance
Operating Temp. Range
Storage Temp. Range
3.81max.
4.8max.4.5max.
0.2max.
0.7
10.21max.
4.8max.
4.8max.
12.30.2
4.50.1
10.80.2
0.60.1
5.5
2.0
9.5
RoHS Compliant
Crystal Units
Surface Mount Leaded Type CXZ49GFB (CX-49G)
for Audio & Visual, Office Equipment
- 44 -
Features
• Crystal unit for automotive electronics
• Small and low profile (5.0x3.2x1.3mm)
• Ceramic package
• Product with lead free terminations
• Reflow compatible
Applications
• Engine Control
Dimensions (Unit : mm) Recommended Land Pattern (Unit : mm)
2.4
4.1
1.91.9
CONNECTION
5.00.2
2.4 1.3
3.20.2
2.0
1.30.2
1.3
Frequency Range Level of Drive Units
W
9843.75 to 15999kHz
16000 to 24999kHz
25000 to 40000kHz
10 (500 max.)
10 (300 max.)
10 (100 max.)
Frequency Range
Motional Series Resistance
Units
ohm
9843.75 to 11999kHz
12000 to 13999kHz
14000 to 29999kHz
30000 to 40000kHz
200
150
100
50
Table1 Motional Series Resistances Table2 Level of Drive
* Please inqurie about specifications other than the above.
Items
Specifications
f_nom
OT
f_tol
f_tem
R1
DL
CL
T_use
T_stg
9843.75 to 40000
Fundamental
100
200
Table 1
Table 2
12
40 to 125
40 to 150
kHz
––––
10-6
10-6
ohm
W
pF
°C
°C
@ 25°C
ref.@ 25°C Over Operating Temp. Range
How to Order
②① ③ ⑦⑥⑤④
①Code
②Typical Frequencies
③Load Capacitance
④Frequency Stability
⑤Operating Temperature Range
⑥Frequency Temperature Stability
⑦Special
*Please inquire about frequencies other than the above.
CX5032GA 16000 H0 Q S W ZZ
12pF
10010-6
40°C to 125°C
20010-6
H0
Q
S
W
ZZ Custom Specification
Code Freq.(kHz) Code Freq.(kHz)
10000
12000
15000
16000
10000.000
12000.000
15000.000
16000.000
18000
20000
24000
25000
18000.000
20000.000
24000.000
25000.000
Symbol Specification Units Remarks
Frequency Range
Overtone Order
Frequency Tolerance
Frequency Temp. Characteristics
Motional Series Resistance
Level of Drive
Load Capacitance
Operating Temp. Range
Storage Temp. Range
RoHS Compliant
Crystal Units
Surface Mount Type CX5032GA (CX-53G)
5.0×3.2mm for Automotive
- 45 -
Features
• Crystal unit for automotive electronics
• Small and low profile (8.0x4.5x1.9mm)
• Ceramic package, J lead type
• Product with lead free terminations
• Reflow compatible
Applications
• Engine Control, TPMS
Dimensions
Specifications
(Unit : mm) Recommended Land Pattern (Unit : mm)
1.7
3.0
3.0
7.1
1.7
8.00.2
0.9
2.2
0.8
4.50.2
0.1
1.90.2
CONNECTION
Frequency Range
Overtone Order
Frequency Tolerance
Frequency Temp. Characteristics
Motional Series Resistance
Level of Drive
Load Capacitance
Operating Temp. Range
Storage Temp. Range
Frequency Range Level of Drive Units
W
8000 to 15999kHz
16000 to 24999kHz
25000 to 30000kHz
10 (500 max.)
10 (300 max.)
10 (100 max.)
Frequency Range
Motional Series Resistance
Units
ohm
8000 to 9999kHz
10000 to 11999kHz
12000 to 30000kHz
200
150
100
Table1 Motional Series Resistances Table2 Level of Drive
* Please inqurie about specifications other than the above.
Items Symbol Specification Units Remarks
f_nom
OT
f_tol
f_tem
R1
DL
CL
T_use
T_stg
8000 to 30000
Fundamental
100
200
Table 1
Table 2
12
40 to 125
40 to 150
kHz
––––
10-6
10-6
ohm
W
pF
°C
°C
@ 25°C
ref.@ 25°C Over Operating Temp. Range
How to Order
②① ③ ⑦⑥⑤④
①Code
②Typical Frequencies
③Load Capacitance
④Frequency Stability
⑤Operating Temperature Range
⑥Frequency Temperature Stability
⑦Special
*Please inquire about frequencies other than the above.
CX8045JA 08000 H0 Q S W ZZ
12pF
10010-6
40°C to 125°C
20010-6
H0
Q
S
W
ZZ Custom Specification
Code Freq.(kHz) Code Freq.(kHz)
08000
09843
10000
12000
13560
14000
8000.000
9843.750
10000.000
12000.000
13560.000
14000.000
16000
18000
20000
24000
25000
30000
16000.000
18000.000
20000.000
24000.000
25000.000
30000.000
RoHS Compliant
8.0×4.5mm for Automotive
Crystal Units
Surface Mount Type CX8045JA (CX-17F)
- 46 -
Features
• Crystal unit for automotive electronics
• Small and low profile (11.85.52.5mm)
• Ceramic package
• Product with lead free terminations
• Reflow compatible
Applications
• Engine Control
Dimensions
Specifications
(Unit : mm) Recommended Land Pattern (Unit : mm)
7.7
5.0
2.5
4.0
2.7
6.5
11.80.3
5.50.3
2.50.3
7.0
CONNECTION
2.0
2.5 1.5
Frequency Range
Overtone Order
Frequency Tolerance
Frequency Temp. Characteristics
Motional Series Resistance
Level of Drive
Load Capacitance
Operating Temp. Range
Storage Temp. Range
Frequency Range Level of Drive Units
W
Frequency Range
Motional Series Resistance
Units
ohm
3500 to 3999kHz
4000 to 7999kHz
8000 to 11999kHz
12000 to 20000kHz
300
200
120
100
3500 to 15999kHz
16000 to 20000kHz
10 (500 max.)
10 (300 max.)
Table1 Motional Series Resistances Table2 Level of Drive
* Please inqurie about specifications other than the above.
Items Symbol Specification Units Remarks
f_nom
OT
f_tol
f_tem
R1
DL
CL
T_use
T_stg
3500 to 20000
Fundamental
100
200
Table 1
Table 2
12
40 to 125
40 to 125
kHz
––––
10-6
10-6
ohm
W
pF
°C
°C
@ 25°C
ref.@ 25°C Over Operating Temp. Range
How to Order
②① ③ ⑦⑥⑤④
①Code
②Typical Frequencies
③Load Capacitance
④Frequency Stability
⑤Operating Temperature Range
⑥Frequency Temperature Stability
⑦Special
*Please inquire about frequencies other than the above.
CXB855GA 06000 H0 Q S W ZZ
Code Freq.(kHz) Code Freq.(kHz)
04000
05000
06000
08000
10000
4000.000
5000.000
6000.000
8000.000
10000.000
12000
16000
18000
20000
12000.000
16000.000
18000.000
20000.000
12pF
10010-6
40°C to 125°C
20010-6
H0
Q
S
W
ZZ Custom Specification
RoHS Compliant
11.8×5.5mm for Automotive
Crystal Units
Surface Mount Type CXB855GA (CX-5FW)
- 47 -
Features
• Crystal unit for automotive electronics
• Metal package, leaded type
• A resistance weld hermetic sealed type
• Suitable for high density assembly
and mass production
Applications
• Engine Control
Specifications
Frequency Range
Overtone Order
Frequency Tolerance
Frequency Temp. Characteristics
Motional Series Resistance
Level of Drive
Load Capacitance
Operating Temp. Range
Storage Temp. Range
Frequency Range Level of Drive Units
W
Frequency Range
Motional Series Resistance
Units
ohm
3200 to 3499kHz
3500 to 4099kHz
4100 to 4799kHz
4800 to 5999kHz
6000 to 11999kHz
12000 to 13499kHz
13500 to 20000kHz
300
150
120
100
90
70
50
3200 to 15999kHz
16000 to 20000kHz
10 (500 max.)
10 (300 max.)
Table1 Motional Series Resistances Table2 Level of Drive
* Please inqurie about specifications other than the above.
Items Symbol Specification Units Remarks
f_nom
OT
f_tol
f_tem
R1
DL
CL
T_use
T_stg
3200 to 20000
Fundamental
100
200
Table 1
Table 2
12
40 to 125
40 to 125
kHz
––––
10-6
10-6
ohm
W
pF
°C
°C
@ 25°C
ref.@ 25°C Over Operating Temp. Range
How to Order
②① ③ ⑦⑥⑤④
①Code
②Typical Frequencies
③Load Capacitance
④Frequency Stability
⑤Operating Temperature Range
⑥Frequency Temperature Stability
⑦Special
*Please inquire about frequencies other than the above.
CXH49SFA 06000 H0 Q S W ZZ
Code Freq.(kHz) Code Freq.(kHz)
04000
05000
06000
08000
10000
4000.000
5000.000
6000.000
8000.000
10000.000
12000
16000
18000
20000
12000.000
16000.000
18000.000
20000.000
12pF
10010-6
40°C to 125°C
20010-6
H0
Q
S
W
ZZ Custom Specification
Dimensions (Unit : mm)
3.8max.
5.0max.
3.5max.
11.00max.
10.3max.
201
0.430.05
4.880.2
Pb Free
RoHS Compliant
Crystal Units
Leaded Type CXH49SFA (HC-49/U-S)
for Automotive
- 48 -
Features
• Crystal unit for automotive electronics
• Metal package, leaded type
• A resistance weld hermetic sealed type
• Suitable for high density assembly
and mass production
Applications
• Engine Control
Specifications
Frequency Range
Overtone Order
Frequency Tolerance
Frequency Temp. Characteristics
Motional Series Resistance
Level of Drive
Load Capacitance
Operating Temp. Range
Storage Temp. Range
Frequency Range Level of Drive Units
W
Frequency Range
Motional Series Resistance
Units
ohm
3200 to 3499kHz
3500 to 4099kHz
4100 to 4799kHz
4800 to 5999kHz
6000 to 11999kHz
12000 to 13499kHz
13500 to 20000kHz
300
150
120
100
90
70
50
3200 to 15999kHz
16000 to 20000kHz
10 (500 max.)
10 (300 max.)
Table1 Motional Series Resistances Table2 Level of Drive
* Please inqurie about specifications other than the above.
Items Symbol Specification Units Remarks
f_nom
OT
f_tol
f_tem
R1
DL
CL
T_use
T_stg
3200 to 20000
Fundamental
100
200
Table 1
Table 2
12
40 to 125
40 to 125
kHz
––––
10-6
10-6
ohm
W
pF
°C
°C
@ 25°C
ref.@ 25°C Over Operating Temp. Range
How to Order
②① ③ ⑦⑥⑤④
①Code
②Typical Frequencies
③Load Capacitance
④Frequency Stability
⑤Operating Temperature Range
⑥Frequency Temperature Stability
⑦Special
*Please inquire about frequencies other than the above.
CXZ49FFA 06000 H0 Q S W ZZ
Code Freq.(kHz) Code Freq.(kHz)
04000
05000
06000
08000
10000
4000.000
5000.000
6000.000
8000.000
10000.000
12000
16000
18000
20000
12000.000
16000.000
18000.000
20000.000
12pF
10010-6
40°C to 125°C
20010-6
H0
Q
S
W
ZZ Custom Specification
Dimensions (Unit : mm) Recommended Land Pattern (Unit : mm)
Pb Free
5.00.3
5.00.2
3.450.1
3.00.2
1.0
1.9
1.00.1
1.6 1.6
1.4
0.8
11.40.3
4.880.2
–0
CONNECTION
2.8+0.2
5.0
2.7
2.5
4.0
RoHS Compliant
for Automotive
Crystal Units
Surface Mount Leaded Type CXZ49FFA (CX-49F)
- 49 -
Features
• Crystal unit for automotive electronics
• Metal package, leaded type
• A resistance weld hermetic sealed type
• Suitable for high density assembly
and mass production
Applications
• Engine Control
Specifications
Frequency Range
Overtone Order
Frequency Tolerance
Frequency Temp. Characteristics
Motional Series Resistance
Level of Drive
Load Capacitance
Operating Temp. Range
Storage Temp. Range
Frequency Range Level of Drive Units
W
Frequency Range
Motional Series Resistance
Units
ohm
3200 to 3499kHz
3500 to 4099kHz
4100 to 4799kHz
4800 to 5999kHz
6000 to 11999kHz
12000 to 13499kHz
13500 to 20000kHz
300
150
120
100
90
70
50
3200 to 15999kHz
16000 to 20000kHz
10 (500 max.)
10 (300 max.)
Table1 Motional Series Resistances Table2 Level of Drive
* Please inqurie about specifications other than the above.
Items Symbol Specification Units Remarks
f_nom
OT
f_tol
f_tem
R1
DL
CL
T_use
T_stg
3200 to 20000
Fundamental
100
200
Table 1
Table 2
12
40 to 125
40 to 125
kHz
––––
10-6
10-6
ohm
W
pF
°C
°C
@ 25°C
ref.@ 25°C Over Operating Temp. Range
How to Order
②① ③ ⑦⑥⑤④
①Code
②Typical Frequencies
③Load Capacitance
④Frequency Stability
⑤Operating Temperature Range
⑥Frequency Temperature Stability
⑦Special
*Please inquire about frequencies other than the above.
CXZ49LFA 06000 H0 Q S W ZZ
Code Freq.(kHz) Code Freq.(kHz)
04000
05000
06000
08000
10000
4000.000
5000.000
6000.000
8000.000
10000.000
12000
16000
18000
20000
12000.000
16000.000
18000.000
20000.000
12pF
10010-6
40°C to 125°C
20010-6
H0
Q
S
W
ZZ Custom Specification
Dimensions (Unit : mm) Recommended Land Pattern (Unit : mm)
4.0
2.02.0
3.3 3.34.3
10.8
4.88
5.08max.
0.7~1.1
4.65max.
4.880.2
11.05max.
3.00.1
0.43
5.08max.
0.8~2.4
1.40.3
1.40.2
9.8max.
0.250.1
5.3max.
t 0.20
0.05
0.03
for Automotive
Crystal Units
Surface Mount Leaded Type CXZ49LPA (CX-49L)
- 50 -
1. Shock & Drop • Vibration
Do not inflict excessive shock and mechanical vibration that
exceeds the norm, such as hitting or mistakenly dropping, when
transporting and mounting on a board. There are cases when
pieces of crystal break, and pieces that are used become
damaged, and become inoperable. When a shock or vibration that
exceeds the norm has been inflicted, make sure to check the
characteristics.
4. Mounting Precautions
Leaded Devices
The special glass, located where the lead of the retainer base comes out, is aligned with the coefficient of thermal expansion of the lead, If
the glass is damaged and cracks appear, there may be cases in which performance deteriorates and it fails to operate.
Consequently, when making the device adhere closely and applying solder, align the gap of the hole of the board with the gap of the lead
and insert without excessive force.
When making the device adhere closely to a through hole board and applying solder, be careful that the solder does not get into the metal
part of the retainer base and cause a short. Putting in an insulation spacer is one more method of preventing a short circuit.
When the lead is mounted floating, fix it as far as possible so that contact with other parts and the breakage due to the fatigue, and the
mechanical resonance of the lead will not occur.
When the lead is bent and used, do not bend the lead directly from the base, separate it 0.5mm or more and then bend it. When bending,
before attaching to the board, fix the place where the lead comes out in advance and attach it after bending so that a crack does not occur in
the glass part.
Surface Mount Devices
The lead of the device and the pattern of the board is soldered on the surface. Since extreme deformation of the board tears off the pattern,
tears off the lead metal, cracks the solder and damages the sealed part of the device and there are cases in which performance deteriorates
and operation fails, use it within the stipulated bending conditions. Due to the small cracks in the board resulting from mounting, please pay
sufficient attention when attaching a device at the position where the warping of the board is great.
When using an automatic loading machine, as far as possible, select a type that has a small impact and use it while confirming that there is
no damage.
Surface mount devices are NOT flow soldering compatible.
5. Storage Condition
Since the long hour high temperature and low temperature storage, as well as the storage at high humidity are causes of deterioration in
frequency accuracy and solderability.
Parts should be stored in temperature range of -5 to +40°C, humidity 40 to 60% RH, and avoid direct sunlight. Then use within 6 months.
2. Cleaning
Since a crystal piece can be broken by resonance when a crystal
device is cleaned by ultrasonic cleaning. Be careful when carrying
out ultrasonic cleaning.
3. Soldering conditions
Standard soldering iron conditions
Reflow conditions (Example)
To maintain the product reliability, please follow recommended conditions.
Recommended reflow Conditions vary depending upon products.
Please check with the respective specification for details.
Soldering iron
Time
Crystal Units
280°C to 340°C
31/0sec. max.
Temperature(°C)
260°C±5°C 10sec.(max.)
200°C min. 30-45sec.
Hold-Time 1-2min. Cool Down 2.5-5°C/s
Ramp-Up 1-3°C/s
Time(sec.)
Crystal Units
Handling Notes
- 51 -
For Proper Use of Crystal Units
1. Characteristics of crystal units
The thickness of crystal vibrator of the AT cut crystal unit as described in the previous page differs depending on the
overtone mode.
The frequency-temperature characteristics of the AT cut crystal unit are tertiary curves.
The diagram below shows examples of the tertiary curves that pass temperature range and frequency deviation specifications.
The range enclosed by the smaller rectangular satisfies the following specification:
±1010-6 (-10 to 60: 25°C)
The range enclosed by the larger rectangular satisfies the following specification:
±5010-6 (-20 to 70: 25°C)
(1) Relationship between thickness of crystal blank and oscillation frequency
(2) Examples of specifications for frequency-temperature characteristics
The following equivalent constants are used near the resonance frequency.
L1: Motional inductance in the equivalent electric circuit
C1: Motional capacitance in the equivalent electric circuit
R: Motional resistance in the equivalent electric circuit
C0: Parallel capacitance in the equivalent electric circuit
(3) Equivalent electric circuit and equivalent constant of crystal unit
In case of calculating the thickness of AT-cut 16MHz
t=1.67/16=0.104(mm)
AT/Fundamental mode 3.5 to 33
33 to 100
100 to 150
150 to 200
1.67/f
5.01/f
8.35/f
11.69/f
AT/3’rd O. T
AT/5’th O. T
AT/7’th O. T
Cut angle/mode
overtone
Frequency range
(MHz)
Formula of thickness
of crystal blank
f : Series resonance frequency (MHz)
Ð70 Ð50
70
60
50
40
30
20
10
0
Ð10
Ð20
Ð30
Ð40
Ð50
Ð60
Ð70
Ð30 Ð10 10 30 50 70 90 110
Frequency deviation f/f(106)
Temperature (°C)
* These are examples. Required frequency-temperature specifications are determined through
individual consultations.
L1C1
C0
R1
Equivalent electric circuit of a quarts crystal unit
Handling Notes
- 52 -
(4) Items calculated by equivalent constants and load capacitance
2. Oscillation circuit and crystal unit
(1) Equivalent circuit of oscillation circuit and oscillation conditions
fs: Series resonance frequency
fp: Parallel resonance frequency
: Capacitance ratio
fL: Load resonance frequency
RL: Load resistance
CL: Load capacitance
Q: Quality factor
The equation fLshows that fLvaries as load capacitance CLconnected to the crystal unit changes and that fLbecomes larger
as CLbecomes smaller.
The equation RLshows the change in impedance with a load capacitance connected. The impedance of crystal unit becomes
larger as CLbecomes smaller.
A simplified equivalent circuit is shown below.
fsL1C1
2
1
fpC0
C0C1
C1
2
1
L1
C1
C0
fLfs
2 (C0CL)1
C1
RLR1
1CL
C0
2
CLC0
2
C1
(fL/fs)1
1
Q
R1
2fsL11
2fsC1R1
Crystal unit Oscillation circuit
CLXL
RL
–R
Crystal unit Oscillation circuit
CL=–XC
–R
CL: Load capacitance
–R: Negative resistance
XL: Reactance of crystal unit
–XC: Reactance of oscillation circuit
RL: Load resonance resistance
Handling Notes
- 53 -
The oscillation start-up conditions are described as
RLR
and in order to oscillate the crystal unit accurately, it must be designed such that the negative resistance of the oscillation
circuit becomes bigger comparing with the resonance resistance value at the time of loading. This ratio is called oscillation
margin degree MOSC and it is one of critical factors when designing the oscillation circuit and is described as below.
For oscillation circuit designing conditions, it is recommended that an oscillation circuit be designed using a negative
resistance of a value five to ten times or more larger than RL calculated from the resonance resistance specification value.
MOSC R/RL5
In a steady oscillation state, the load resonance resistance is given as follows:
RLR
The mutual conductance of the oscillation circuit decreases after the oscillation has started to continuously compensate for
the power loss due to the load resonance resistance of the crystal unit, which continues oscillation.
The frequency condition is given as follows:
XLXC,XLXC0
As shown in the following figure, the reactance of the crystal unit varies to a value matching the load capacitance of the
oscillation circuit CLXC. Thus an oscillation frequency is determined.
Reactance
Frequency
Admittance
–X
+X
fsfL
fp
Le
CL
–1/
fs: Series resonance frequency
fL: Load resonance frequency
fp: Parallel resonance frequency
Handling Notes
- 54 -
(2)
Changes of load capacitance and oscillation frequency
As shown above, the series resonance frequency of the crystal
unit changes with load capacitance CLof the oscillation circuit.
In the actual oscillation circuit, however, fine adjustments of
oscillation frequencies are carried out by varying CLby the
trimmer capacitor or the like. The following figure shows an
example of load capacitance characteristics. The slope of the
characteristics varies depending on the frequency, shape, the
number of overtone mode, etc.
3. Crystal oscillation circuit
(1) CMOS fundamental crystal oscillation circuit
As shown above, the series resonance frequency of the crystal
The figure on the right shows a standard CMOS inverter crystal
oscillation circuit for oscillating crystal unit with fundamental mode.
*Rx is an element to reduce excitation current of the crystal unit
preventing frequency fluctuation, but Rx is not used in some cases.
Characteristics of the circuit when load capacitances C1and C2
are changed under the condition of C1=C2are shown in the
figure on the right.
It is not desirable that the excessive increase of the value of
condenser leads to a decrease of the negative resistance
resulting in increasing the possibility of oscillation failure.
Rdmainly adjusts frequency characteristics of the negative
resistance and is used to prevent oscillating by third Overtone
mode. In case of a bigger circuit of the negative resistance,
there is a case it is used to prevent the abnormal oscillation.
800
700
600
500
400
300
200
100
0
0 10 20 30 40 50 60
Load capacity characteristic
f/f(10−6)
CL(pF)
Frequency(MHz)
Negative resistance
C1=C2=10pF
Resistance of Rd
3.5 to 6.9MHz=2.2k
7.0 to 16MHz=220
(
)
2
-100
-200
-500
-1K
-2K
-5K
-10K
4 6 8 10 12 14 16
Frequency characteristics of negative resistance
C1
Rd
Rx
Xtal
Buffer
Rf= 1M
CMOS fundamental crystal oscillation circuit
C2
Variation of negative resistance with condenser capacity
Condenser capasityC(C1=C2)(pF)
Negative resistance
(
)
-100
16.0MHz
10.0MHz
3.579545MHz
0 10 20 30 40 50
-200
-500
-1K
-2K
-5K
-10K
Handling Notes
- 55 -
(2) CMOS overtone crystal oscillation circuit
This figure shows a standard CMOS inverter crystal oscillation circuit to oscillate a crystal unit using the overtone mode.
(4) Method of selecting circuit constants and functions of elements
C1: Forms load capacitance of the circuit together with C2,L1and L2. A value of approx. 5pF is used.
C2: Forms load capacitance of the circuit together with C1,L1and L2. Prevents fundamental wave oscillation. Shall be selected
so that C2comes between the third overtone frequency at which resonance frequency with L2is to make oscillation and 1/3
of the third overtone frequency. A value of 10 to 22pF is used.
C3: A bypath capacitor
L1: A coil to adjust load capacitance of the oscillation circuit to a value near the series. A value of several µH is used.
L2: Forms load capacitance of the circuit together with C1,C2and L1. Prevents fundamental wave oscillation. Shall be selected
so that L2 comes between the third overtone frequency at which resonance frequency with C2is to make oscillation and 1/3
of the third overtone frequency. A value of 10 to 22pF is used.
R1: A Q dump resistor for L1. As an element for preventing self-excited oscillation, A value of several kto several tens of
kis used.
*L1and R1might not be used.
(3) Selection of ICs and circuit constants by frequency bands
Selection of ICs and circuit constants by frequency bands
*1: Necessary for preventing overtone oscillation and must be changed depending on the frequency band or the C1and C2values.
*2: Used to reduce excitation current of the crystal unit. Necessary for stable operation of small-sized crystal units.
*3: The optimum value differs with the values of load capacitance and Rd.
Frequency 3 to 4.9(MHz) 5 to 6.9(MHz)
TC4069UB
TC4SU69F
1M
7 to 9.9(MHz)
1500() 470()
0 to 1500
6 to 22(pF)
0()
10 to 19.9(MHz)
TC74HCU04A
TC7SU04F
TC7WU04FU
20 to 30(MHz)
0() 0()
6 to 15(pF) 6 to 15(pF)
TC74VHCU04
TC7SHU04F
TC7WHU04FU
IC
Rf
Rd*1
Rx*2
C1,C2*3
C1
C2
C3
X-tal
L1
R1
Rf= 1M
1000pF
L2
CMOS overtone crystal oscillation circuit
There are same cases when L1and R1are matched to the value of load capacitance.
Frequency range
TC74VHCU04
TC7SHU04F
TC7WHU04FU
IC
C1
C2
20 to 60(MHz)
3 to 10pF
10 to 22pF
Handling Notes
- 56 -
(5) Method of checking oscillation circuit
①Some ICs have a low upper-limit value of usable frequency, so refer to individual IC catalog to make sure that the IC can
oscillate a crystal unit with an adequate negative resistance.
②The following figure shows an example of a CMOS oscillation circuit. Check resistance Rsup is connected in series with
the crystal unit to check the negative resistance. Use 3 to 22pF for C1and C2, and see the table below for values of check
resistance.
③Using a spectrum analyzer or oscilloscope, check that every oscillation is normally activated while turning the power on
and off several times. For oscillation circuits with no power regulator ICs, carefully check changes in the negative
resistance against supply voltage and in frequencies.
④When oscillation is normal, remove the check resistance before using the crystal circuit.
⑤If oscillation is unstable or is not generated, gradually decrease the values of C1and C2until normal oscillation is obtained.
⑥If normal oscillation cannot be generated near 10MHz or near 20MHz, replace the IC with a new one suitable for higher
frequencies.
(6)
Load capacitance and oscillation frequency of transistor/fundamental crystal oscillation circuit
Viewed from the connection terminals of a crystal unit, the load capacitance CLof an oscillation circuit is generally comprised
of C1,Ct,C2, and C3if stray capacitance of the circuit and the capacitance between base and emitter of the transistor are
ignored. Since trimmer capacitor is adjusted to CT= MIN. to MAX. for zero adjustment of the oscillation frequency, the value
of CLat this time can be obtained from the following equation.
When these calculation results are substituted for the following equation for load resonance frequency, the oscillation
frequency can be obtained.
Frequency range Values of check resistance
3.5 to 4.5MHz 1.5k
4.6 to 6.0MHz 1.0k
6.1 to 10.0MHz 800
10.1 to 14.0MHz 500
14.1 to 20.0MHz 400
C1C2
Rsu p
Rf
CLMIN. to CLMAX.
C1CT
1
C2
1C3
1
C1CT
1
C2
1C3
1
11
fLfs
2 (C0CL)1
C1
Handling Notes
- 57 -
Select each circuit constant so that the adjustment ranges of upper and lower frequencies of this circuit are even on the
basis of the frequency of a single crystal unit measured using a specified load capacity, and that the margin of ±8 to 10 10-6
of the room temperature deviation of the crystal unit can be reserved.
To prevent the decrease in the negative resistance, always connect the crystal unit to the base of the transistor. For
transistors used for oscillation circuits, hfe and fT are important.
To obtain the large negative resistance with small current consumption, select a transistor for high frequency amplification
with hfe of over 250 and fTof 1GHz or more.
(7) Transistor third overtone oscillation circuit
①The resonance circuit comprised of L2and C3is required on the emitter side for preventing fundamental mode crystal
oscillation. Set the resonance frequency to a value higher than the intermediate between fundamental wave frequency and
third overtone frequency.
②Use L1, referred to as an elongation coil, to connect the load capacitance of the oscillation circuit in series. R1prevents
self-excited oscillation by L1. Since it is difficult in general to design the oscillation circuit having adequate negative
resistance in the overtone oscillation frequency band, there are no other effective means of obtaining adequate oscillation
margin except for preventing the increase of load resonance resistance RLof the crystal unit.
C5
C4
0.01
OUT
R3
C3
C2
R2
R1
Vcc
Ct
C1
Handling Notes
- 58 -
To prevent decrease in the negative resistance, connect the crystal unit to the base of the transistor as in the fundamental
mode crystal oscillation circuit. To use the crystal circuit for both oscillation and multiplication, connect a parallel resonance
circuit having multiplication frequency as resonance frequency to the collector of the transistor.
When selecting circuit constants for zero adjustment range by trimmer capacitor, set the constants to values obtained by
adding approx. 12 to 1510-6 to the room temperature deviation of the crystal unit, centering the value obtained by
measuring the crystal unit with load capacitances in series. (When the room temperature deviation specification of the crystal
unit is 1010-6)
(8) Excitation power of oscillation circuit
Normal operation of crystal units is not assured when excitation power is raised. The allowable excitation power varies
depending on the shape of the crystal unit or the stability of targeted frequency. When highly accurate oscillation is required,
however, it is recommended to use an oscillation circuit with an excitation power of 5 to 50 µW or less. For other cases, refer
to individual relevant crystal units on the pages of the catalog.
(9) Precautions for designing printed circuit board
Be sure to design printed circuit board patterns that connect a crystal unit with other oscillation elements so that the lengths
of such patterns become shortest possible to prevent deterioration of characteristics due to stray capacitances and wiring
inductance. For multi-layer circuit boards, it is important not to wire the ground and other signal patterns right beneath the
oscillation circuit.
RLin the equation of load resonance resistance can be made equal to RSby connecting CLin series, or making it infinite,
which prevents increase in the load resonance resistance.
L2
C3
C2
R1
C4
1000P
Vcc
L1
C5
OUT
R4
R3
R2
C6
Ct
C1
RLR1
1CL
C0
2
Handling Notes
- 59 -
Feed direction
■Crystal Units
Tape & Reel Specifications
A
B
C
D
E
F
G
H
J
L
N
O
P
Q
R
S
U
W
Qty
2.00.1
4.00.1
1.550.05
4.00.1
5.50.1
1.750.1
12.00.3
1.050.1
4.20.1
2.70.1
0.950.05
0.20.05
180+0/-3
60+1/-0
130.2
210.8
2.00.5
131
3000/1000
CX4025SB
(CX-4025S)
2.00.1
4.00.1
1.50.1
8.00.1
5.50.1
1.750.1
12.00.3
1.50.1
5.50.1
3.70.1
1.40.1
0.30.05
3302/1782
802/1001
130.2
210.8
2.00.5
13.5+1/-0.5
5000/1000
CX5032SB
(CX-96F)
2.00.1
4.00.1
1.550.1
8.00.1
5.50.1
1.750.1
12.00.2
1.550.1
5.40.1
3.60.1
1.70.1
0.250.05
3302/2542
1001
130.2
210.8
2.00.5
13.4+2/-0
3000/1000
CX5032GB
(CX-53F)
2.00.1
4.00.1
1.50.1
8.00.1
7.50.1
1.750.1
16.00.3
1.550.05
8.40.1
4.90.1
2.10.1
0.30.05
3302/2542
801
130.2
210.8
2.00.5
16.0+2/-0
3000/1000
CX8045GB
(CX-8045G)
CX8045JA
(CX-17F)
CXZ49FFA
(CX-49F)
2.00.1
4.00.1
1.550.05
8.00.1
11.50.1
1.750.1
24.00.3
2.050.05
11.50.1
5.40.1
5.50.1
0.30.05
3302
1001
130.5
210.5
2.00.2
25.50.5
1000
2.00.1
4.00.1
1.550.05
12.00.1
11.50.1
1.750.1
24.00.3
2.050.05
12.20.1
5.850.1
2.80.1
0.30.05
3302
1001
130.5
210.5
2.00.5
24.4+2/-0
1000
CX855GA
(CX-5FW)
CXB855GB
(CX-5FD)
2.00.1
4.00.1
1.50.1
16.00.1
11.50.1
1.750.1
24.00.3
2.20.1
6.50.1
0.50.05
3302
1001
130.5
25.5+1/-0.5
600
CXZ9LPA
(CX-49L)
T
A
P
E
R
E
E
L
2.00.05
4.00.1
1.550.05
4.00.05
3.50.05
1.750.1
8.00.2
1.050.1
3.50.1
2.80.1
0.850.1
0.250.05
180+0/-3
60+1/-0
130.2
210.8
2.00.5
91
3000/1000
CX2520SB
(CX-2520SB)
2.00.05
4.00.1
1.550.05
4.00.05
3.50.05
1.750.1
8.00.2
1.050.1
3.50.1
2.80.1
0.850.1
0.250.05
180+0/-3
60+1/-0
130.2
210.8
2.00.5
91
3000/1000
CX3225SB
(CX-101F)
G
H
J
E
F
C
B
A
D
N
O
L
S
R
U
W
<
Reel Dimensions
>
P
Q
Handling Notes
- 60 -