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1N974B Datasheet Preview

1N974B Datasheet

ZENER DIODES

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1N957B - 1N984B
VZ : 6.8 to 91V
PD: 500mW
FEATURES :
• Silicon planar power zener diodes.
• Standard Zener voltage tolerance is ± 5%
• Other tolerances are available upon request.
• Pb / RoHS Free
MECHANICAL DATA :
Case: DO-35 Glass Case
Weight: approx. 0.13g
ZENER DIODES
DO - 35 Glass
(DO-204AH)
0.079(2.0 )max.
Cathode
Mark
0.020 (0.52)max.
1.00 (25.4)
min.
0.150 (3.8)
max.
1.00 (25.4)
min.
Dimensions in inches and ( millimeters )
Maximum Ratings and Thermal Characteristics
Rating at 25 °C ambient temperature unless otherwise specified.
Parameter
Symbol
Zener Current see Table "Characteristics"
Maximum Forward Voltage at IF = 200 mA.
Power Dissipation at TL = 25°C
Thermal Resistance Junction to Ambient Air
Junction temperature
Storage temperature range
VF
PD
RθJA
TJ
TS
Notes:
(1) Valid provided that leads at a distance of 3/8” from case are kept at ambient temperature.
Value
1.5
500(1)
300(1)
175
-65 to + 150
Unit
V
mW
°C/W
°C
°C
Page 1 of 2
Rev. 02 : March 25, 2005




EIC

1N974B Datasheet Preview

1N974B Datasheet

ZENER DIODES

No Preview Available !

ELECTRICAL CHARACTERISTICS
Rating at 25 °C ambient temperature unless otherwise specified
Type
Number
1N957B
1N958B
1N959B
1N960B
1N961B
1N962B
1N963B
1N964B
1N965B
1N966B
1N967B
1N968B
1N969B
1N970B
1N971B
1N972B
1N973B
1N974B
1N975B
1N976B
1N977B
1N978B
1N979B
1N980B
1N981B
1N982B
1N983B
1N984B
Zener Voltage
VZ @ IZT
Nominal
IZT
(V) (mA)
6.8 18.5
7.5 16.5
8.2 15.0
9.1 14.0
10 12.5
11 11.5
12 10.5
13 9.5
15 8.5
16 7.8
18 7.0
20 6.2
22 5.6
24 5.2
27 4.6
30 4.2
33 3.8
36 3.4
39 3.2
43 3.0
47 2.7
51 2.5
56 2.2
62 2.0
68 1.8
75 1.7
82 1.5
91 1.4
Maximum Zener
Impedance (1)
ZZT @ IZT ZZk @ IZK
() ()
4.5 700
5.5 700
6.5 700
7.5 700
8.5 700
9.5 700
11.5 700
13 700
16 700
17 700
21 750
25 750
29 750
33 750
41 750
49 1000
58 1000
70 1000
80 1000
93 1500
105 1500
125 1500
150 2000
185 2000
230 2000
270 2000
330 3000
440 3000
IZK
(mA)
1.00
0.50
0.50
0.50
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
Maximum Reverse
Leakage Current
IR
(µA)
at VR
(V)
150 5.2
75 5.7
50 6.2
25 6.9
10 7.6
5 8.4
5 9.1
5 9.9
5 11.4
5 12.2
5 13.7
5 15.2
5 16.7
5 18.2
5 20.6
5 22.8
5 25.1
5 27.4
5 29.7
5 32.7
5 35.8
5 38.8
5 42.6
5 47.1
5 51.7
5 56
5 62.2
5 69.2
Maximum DC.
Zener Current
IZM(2)
(mA)
58
53
47
43
40
36
32
29
27
24
21
20
18
16
14
13
12
11
10
9.2
8.5
7.8
6.9
6.3
5.7
5.2
4.7
4.3
Notes:
(1) The Zener Impedance is derived from the 1 kHz AC voltage which results when an AC current having an RMS value equal
to 10% of the Zener current (IZT) is superimposed on IZT. Zener Impedance is measured at two points to insure a sharp knee
on the breakdown curve and to eliminate unstable units.
(2) Valid provided that leads at a distance of 3/8” from case are kept at 25°C ambient temperature.
(3) The type number listed have a standard tolerance on the nominal zener voltage of ± 5.0%.
Page 2 of 2
Rev. 02 : March 25, 2005


Part Number 1N974B
Description ZENER DIODES
Maker EIC
Total Page 2 Pages
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