1N957B - 1N973B Series
1N957B-1N973B Rev. A1
Device
VZ
(V)
ZZ
(Ω
ΩΩ
Ω)
IZT
(mA)
ZZK
(Ω
ΩΩ
Ω)
IZK
(mA)
IR
(µ
µµ
µA)
VR
(V)
TC
(%/°
°°
°C)
IZRM*
(mA)
1N957B
1N958B
1N959B
1N960B
6.8
7.5
8.2
9.1
4.5
5.5
6.5
7.5
18.5
16.5
15
14
700
700
700
700
1.0
0.5
0.5
0.5
150
75
50
25
5.2
5.7
6.2
6.9
0.05
0.058
0.062
0.068
47
42
38
35
1N961B
1N962B
1N963B
1N964B
10
11
12
13
8.5
9.5
11.5
13
12.5
11.5
10.5
9.5
700
700
700
700
0.25
0.25
0.25
0.25
10
5
5
5
7.6
8.4
9.1
9.9
0.072
0.073
0.076
0.079
32
28
26
24
1N965B
1N966B
1N967B
1N968B
15
16
18
20
16
17
21
25
8.5
7.8
7.0
6.2
700
700
750
750
0.25
0.25
0.25
0.25
5
5
5
5
11.4
12.2
13.7
15.2
0.082
0.083
0.085
0.086
21
19
17
15
1N969B
1N970B
1N971B
1N972B
1N973B
22
24
27
30
33
29
33
41
49
58
5.6
5.2
4.6
4.2
3.8
750
750
750
1,000
1,000
0.25
0.25
0.25
0.25
0.25
5
5
5
5
5
16.7
18.2
20.6
22.8
25.1
0.087
0.088
0.090
0.091
0.092
14
13
11
10
9.2
1N957B - 1N973B Series Half Watt Zeners
Absolute Maximum Ratings* TA = 25°C unless otherwise noted Tolerance: B = 5%
Electrical Characteristics TA = 25°C unless otherwise noted
@
@
@
NOTES:
1) These ratings are based on a maximum junction temperature of 200 degrees C.
2) These are steady state limits. The factory should be consulted on applications involving pulsed
or low duty cycle operations.
*These ratings are limiting values above which the serviceability of the diode may be impaired.
*IZRM (Maximum Zener Current Rating) Values shown are based on the JEDEC rating of 400 milliwatts. Where the actual zener voltage (VZ) is known at the
operating point, the maximum zener current may be increased and is limited by the derating curve.
Symbol
Parameter
Value
Units
TSTG Storage Temperature Range -65 to
+200
°C
TJ Maximum Junction Operating Temperature + 175 °C
Lead Temperature (1/16” from case for 10
seconds)
+ 230 °C
PD Total Device Dissipation
Derate above 25°C
500
3.33
mW
mW/°C
DO-35
COLOR BAND DENOTES CATHODE
2001 Fairchild Semiconductor Corporation
1N957B - 1N973B Series
1N957B-1N973B Rev. A1
Typical Characteristics
Zener Current vs. Zener Impedence
0.1 0.2 0.5 1 2 5 10 20
1
2
5
10
20
50
100
200
500
1000
2000
5000
I - ZENER CURRENT (mA)
Z - IMPEDANCE (ohms)
T = 25 C
º
A
Z
Z
V = 3.3V
Z
V = 5.1V
Z
V = 12.0V
Z
V = 33.0V
Z
3.3 Zener Voltage vs. Temperature
12 5102030
1
2
3
4
5
I - ZENER CURRENT (mA)
V - ZENER VOLTAGE (V)
T = -25 C
º
A
Z
Z
V = 3.3V
Z
T = 85 C
º
A
T = 100 C
º
A
T = 25 C
º
A
T = 125 C
º
A
Zener Current vs. Zener Voltage
12 5102030
5
10
15
20
25
30
35
I - ZENER CURRENT (mA)
V - ZENER VOLTAGE (V)
T = 25 C
º
A
Z
Z
V = 12.0V
Z
V = 3.3V
Z
V = 5.1V
Z
V = 33.0V
Z
5.1 Zener Voltage vs. Temperature
12 5102030
4
4.5
5
5.5
6
I - ZENER CURRENT (mA)
V - ZENER VOLTAGE (V)
T = -25 C
º
A
Z
Z
V = 5.1V
Z
T = 85 C
º
A
T = 100 C
º
A
T = 25 C
º
A
T = 125 C
º
A
12 Zener Voltage vs. Zener Temperature
12 5102030
0
5
10
15
I - ZENER CURRENT (mA)
V - ZENER VOLTAGE (V)
T = -25 C
º
A
Z
Z
V = 12.0V
Z
T = 85 C
º
A T = 100 C
º
A
T = 25 C
º
A
T = 125 C
º
A
33 Zener Voltage vs. Zener Temperature
12 5102030
20
25
30
35
40
I - ZENER CURRENT (mA)
V - ZENER VOLTAGE (V)
T = -25 C
º
A
Z
Z
V = 33.0V
Z
T = 85 C
º
A
T = 100 C
º
A
T = 25 C
º
A
T = 125 C
º
A
DO-35 Tape and Reel Data
September 1999, Rev. A
DO-35 Packaging Information
T50R
TNR
13
10,000
254x79x794
30,000
0.137
2.23
Note/Comments
Packaging Option
Packaging type
Reel Size (inch diameter)
Qty per Reel/Tube/Bag
Int Box Dimension (mm)
Max qty per Box
Weight per unit (gm)
Weight per Reel/Ammo (kg)
Inside Tape Spacing (mm) 52
T50A
Ammo
-
5,000
406x267x184
50,000
0.137
0.800
52
Bulk
Standard
(no flow c ode)
Bag
-
500
279x133x108
5,000
0.137
-
-
DO-35 Packaging
Configuration: Figure 1.0
Soabar Label sample
P.O. No.
TYPE IN5225A MARK BLK-BRN
REV A2 PART No.
PKG EC No.
QTY 10,000 M.O. No. OX5046F035
Q.C. DATE D9903
MFD. UNDER US PAT 3.025. 589 & O THER US PATS & APPLICATIONS
Kraft Paper Wound
Between Layers
Corrugated Outer Liner
Red/Blue (Cat hode)
White (Anode )
Soabar Label
DO-35 Packaging
Information Table: Figure 2.0
T50R
TNR Options
REEL DI MENSIONS
ITEM DESC RIPTION SYMBOL MINIMUM MAXIMUM
Ree l Di am e ter D1 10. 3 75 10. 62 5
Arb or Hol e Di am et er (S ta nd ard) D2 1. 24 5 1.2 55
Core Diameter D3 3.190 3.310
Flange to Flange Inner Width W1 3.400
Note: All Dimensions are in inches
D1
D3
W1
D2
DO-35 Reel Dimensions:
Figure 3.0
Soabar Label
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DO-35 Tape and Ammo Data, continued
September 1999, Rev. A
TAPING DIMENSIONS
INCH MM MILS NOTES
A2.520 64.00 2519 Overall width
+0.066/ +1.69/ +66.5/
-0.027 -0.69 -27.0
B2.047±0.027 52 ±0.69 2047±27 Inside Tape Spacing
C0.200 ±0.0157 5.08 ±0.40 200 ±15.7 Component Pitch
D0.047(max) 1.2(max) 47(max) Component Misalignment
E0.022(m ax) 0.55(max) 22(max) Tape Mismat ch
F0.027(max) ±0.69 ±27 Units in line w/ one another
G0.126(m in) 3.2(m in) 126(min) Lead amount between t apes
H0 0 0 Lead amount beyond tapes
L1-L2 ±0.027 ±0.69 ±27 D elta between two leads
254mm x 79mm x 79mm
Intermediate Container (5,000 cap)
T50A Option
DO-35 A mmo Packing
Configuration: Figure 4.0
A
F
CD
L2
L1
E
B
G
H
DO-35 Bulk Packing
Configuration: Figure 6.0
133mm x 95mm
Anti-static bag (500/bag)
Im 102mm x 76mm x 127mm
mediate Box (1,000 cap)
DO-35 Taping
Dimension: Figure 5.0
Soabar Label
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DO-35 (FS PKG Code D2)
DO-35 Package Dimensions
March 2000, Rev. A
1:1
Scale 1:1 on letter size paper
Dimensions shown below are in millimeters
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©2000 Fairchild Semiconductor International
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