1N977B [VISHAY]
ZENER DIODES; 齐纳二极管
| 型号： | 1N977B |
| 厂家： | 
VISHAY |
| 描述： | ZENER DIODES |
| 文件： | 总2页 (文件大小：41K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
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1N957 THRU 1N978
ZENER DIODES
FEATURES
DO-35
♦ Silicon Planar Power Zener Diodes
♦ Standard Zener voltage tolerance is ±5% for
“B” suffix. Other tolerances are available upon
request.
max.
.079 (2.0)
Cathode
Mark
max. .020 (0.52)
MECHANICAL DATA
Case: DO-35 Glass Case
Weight: approx. 0.13 g
Dimensions are in inches and (millimeters)
MAXIMUM RATINGS
Ratings at 25°C ambient temperature unless otherwise specified.
SYMBOL
VALUE
UNIT
Zener Current (see Table “Characteristics”)
Power Dissipation at TL = 75°C
Junction Temperature
Ptot
Tj
500(1)
175
mW
°C
Storage Temperature Range
TS
– 65 to +175
°C
NOTES:
(1) TL is measured 3/8” from body.
SYMBOL
MIN.
TYP.
MAX.
UNIT
Thermal Resistance
Junction to Ambient Air
RthJA
–
–
–
300(1)
°C/W
Forward Voltage
at IF = 200 mA
VF
–
1.5
Volts
NOTES:
(1) Valid provided that leads at a distance of 3/8” from case are kept at ambient temperature.
1/6/98
1N957 THRU 1N978
ELECTRICAL CHARACTERISTICS
Ratings at 25°C ambient temperature unless otherwise specified.
Maximum Zener Impedance(1)
@ I @ I
Maximum Reverse Current
Nominal
Test
Maximum
Type
Zener Voltage
Current
Regulator Current
(3)
(2)
Number
V
Z
I
ZT
Z
Z
ZK
I
ZK
I
I Maximum
R
Test Voltage Vdc
ZT
ZT
ZK
ZM
(Volts)
(mA)
(Ω)
(Ω)
(mA)
(mA)
(µA)
(Volts)
1N957B
1N958B
1N959B
1N960B
1N961B
1N962B
1N963B
1N964B
1N965B
1N966B
1N967B
1N968B
1N969B
1N970B
1N971B
1N972B
1N973B
1N974B
1N975B
1N976B
1N977B
1N978B
6.8
7.5
8.2
9.1
10
11
18.5
16.5
15
4.5
5.5
6.5
7.5
8.5
9.5
11.5
13
700
700
1
47
42
38
35
32
28
26
24
21
19
17
15
14
13
11
150
75
50
25
10
5
5.2
5.7
0.5
700
0.5
6.2
14
700
0.5
6.9
12.5
11.5
10.5
9.5
8.5
7.8
7
700
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
7.6
700
8.4
12
13
15
16
18
20
22
24
27
30
33
36
39
43
47
51
700
5
9.1
700
5
9.9
16
700
5
11.4
12.2
13.7
15.2
16.7
18.2
20.6
22.8
25.1
27.4
29.7
32.7
35.8
38.8
17
700
5
21
750
5
6.2
5.6
5.2
4.6
4.2
3.8
3.4
3.2
3
25
750
5
29
750
5
33
750
5
41
750
5
49
1000
1000
1000
1000
1500
1500
1500
10
9.2
8.5
7.8
7
5
58
5
70
5
80
5
93
5
2.7
2.5
105
125
6.4
5.9
5
5
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 ambient temperature.
(3) Measured with device junction in thermal equilibrium.
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