Chip Attenuator
Design and specifi cations are each subject to change without notice. Ask factory for the current technical specifi cations before purchase and/or use.
Should a safety concern arise regarding this product, please be sure to contact us immediately.
0.8 mm L 0.6 mm
(inches : 0302)
= type attenuator
1.0 mm L 1.0 mm
(inches : 0404)
= type attenuator
One-digit number /one letter
shows attenuation value
(ex.) 1n1 dB, An10 dB
Thick Film Resistor
Network
&
1
9
2
#
3
4
56
5
7
8
"
9
3
10
9
11 12
"
R3 ±0.3 dB
R5 ±0.5 dB
Product Code Attenuation Value ToleranceDimensions and
Circuit Configuration
Code
14AT
24AT
A50?
Characteristics
Impedance
Punched Carrier Taping
(2 mm pitch)
X
Packaging
11
10
9
8
7
6
5
4
3
2
1
0
Attenuation (dB)
30 k 100 k 10 M1 M 100 M 3 G1 G
Frequency (Hz)
1dB
2dB
3dB
4dB
5dB
6dB
10dB
R1
R2R2
Unbalanced = type
12
43
■ Features
● Unbalanced π type attenuator circuit in one chip
EXB14AT(0.8 mm × 0.6 mm), EXB24AT(1.0 mm × 1.0 mm)
● Reduced mounting area :
EXB14AT : About 60% smaller than the area of an attenuator circuit consisting of three 0603 chip resistors,
almost equal to the area of three 0402 chip resistors
EXB24AT : About 50% smaller than the area of an attenuator circuit consisting of
three 1005 chip resistors, almost equal to the area of three 0603 chip resistors
● Mounting cost reduction : (Only 1 chip placed as compared to 3)
● Attenuation : 1 dB to 10 dB
● RoHS compliant
Chip Attenuator
0302, 0404
Type: EXB 14AT, 24AT
■ Explanation of Part Numbers
■ Recommended Applications
● Attenuation / level control / impedance matching of high frequency (communication signalling equipment cellular
phones(GSM, CDMA, PDC, etc.), PHS, PDAs)
■ Attenuation-Frequency Characteristics
(EXB14AT, EXB24AT)
■ Circuit Con guration
■ Packaging Methods, Land Pattern, Soldering Conditions and Safety Precautions
Please see Data Files
Aug. 201201
38
Design and specifi cations are each subject to change without notice. Ask factory for the current technical specifi cations before purchase and/or use.
Should a safety concern arise regarding this product, please be sure to contact us immediately.
Chip Attenuator
–40
–20 0 20 40 60 80 100 120 140 160
0
–60
70 °C
–55 °C
20
40
60
80
100
120
125 °C
Ambient Temperature (°C)
Rated Power (%)
Protective coating
Thick film
resistive element Electrode (Inner) Electrode (Between)
Electrode (Outer)
Alumina substrate
A
43
12
B
W
C
T
P
L
C
12
3
4
A
B
W
T
P
L
Protective
coating
Alumina
substrate
Electrode (Between)
Electrode (Outer)
Electrode (Inner)
Thick film
resistive element
■ Ratings
Power Derating Curve
For resistors operated in ambient temperature above
70 °C, power rating shall be derated in accordance
with the fi gure on the right.
✽ Please inquire about the other Attenuator value
Type EXB14AT, EXB24AT
Attenuation Value 1 dB, 2 dB, 3 dB, 4 dB, 5 dB, 6 dB, 10 dB✽
Attenuation Value Tolerance 1 dB, 2 dB, 3 dB, 4 dB, 5 dB : ±0.3 dB
6 dB, 10 dB : ±0.5 dB
Characteristic Impedance 50 Ω
Power Rating 0.04 W /package
Frequency Range at 70 °C DC to 3.0 GHz
VSWR (Voltage Standing Wave Ratio) 1.3 max.
Number of Resistors 3 resistors
Number of Terminals 4 terminals
Category Temperature Range –55 °C to +125 °C
<Marking Confi guration>
The bar marking for recognizing terminal direction is
located on the side of terminal 4.
Mass (Weight) [1000 pcs.] : 1.1 g
Di men sions
(mm)
LWTAB
CP
(typical value)
1.00±0.10 1.00±0.10 0.35±0.10 0.40±0.10 0.15±0.10 0.25±0.10 0.65
■ Dimensions (not to scale)
<Marking Confi guration>
The bar marking for recognizing terminal direction is
located on the side of terminal 3, 4.
Mass (Weight) [1000 pcs.] : 0.7 g
Di men sions
(mm)
LWTABCP
(typical value)
0.80±0.10 0.60±0.10 0.35±0.10 0.35±0.10 0.15±0.10 0.15±0.10 0.50
EXB14AT EXB24AT
■ Construction
EXB14AT EXB24AT
Aug. 201201
39
