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JAN1N978C

Description
Zener Diode, 51V V(Z), 2%, 0.5W, Silicon, Unidirectional, DO-35, HERMETIC SEALED, GLASS PACKAGE-2
CategoryDiscrete semiconductor    diode   
File Size211KB,2 Pages
ManufacturerCobham PLC
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JAN1N978C Overview

Zener Diode, 51V V(Z), 2%, 0.5W, Silicon, Unidirectional, DO-35, HERMETIC SEALED, GLASS PACKAGE-2

JAN1N978C Parametric

Parameter NameAttribute value
MakerCobham PLC
package instructionHERMETIC SEALED, GLASS PACKAGE-2
Reach Compliance Codeunknown
ECCN codeEAR99
Shell connectionISOLATED
ConfigurationSINGLE
Diode component materialsSILICON
Diode typeZENER DIODE
JEDEC-95 codeDO-35
JESD-30 codeO-LALF-W2
JESD-609 codee0
Number of components1
Number of terminals2
Package body materialGLASS
Package shapeROUND
Package formLONG FORM
polarityUNIDIRECTIONAL
Maximum power dissipation0.5 W
Certification statusNot Qualified
GuidelineMIL-19500/117
Nominal reference voltage51 V
surface mountNO
technologyZENER
Terminal surfaceTIN LEAD
Terminal formWIRE
Terminal locationAXIAL
Maximum voltage tolerance2%
Working test current2.5 mA
Silicon Zener Diode Series
1N957B thru 1N986B
Features
Available in JAN, JANTX and JANTXV per MIL-PRF-19500/117
Standard voltage tolerences are plus/minus 5%
with B suffix, 10% with A suffix identification.
Tight tolerences available in plus or minus 2% or
1% with C or D suffix respectively.
500 mW power handling
Hermetically sealed axial-leaded glass DO-35 package.
Maximum Ratings
Operating & Storage Temperature: -65°C to +175°C
Thermal Resistance:
Steady-State Power:
250°C/W
0.5 watts
Foward Voltage @200 MA: 1.1 V for 1N 975B - 1N985B
1.3 V for 1N985 - 1N992B
Electrical Specifications @ +25 ºC (Unless Otherwise Specified)
JEDEC
TYPE
Number
(Note1)
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
1N985B
1N986B
Normal
Zener
Voltage
Vz
Volts
6.8
7.5
8.2
9.1
10
11
12
13
15
16
18
20
22
24
27
30
33
36
39
43
47
51
56
62
68
75
82
91
100
110
Zener
Test
Current
IZT
mA
18.5
16.5
15.0
14.0
12.5
11.5
10.5
9.5
8.5
7.8
7.0
6.2
5.6
5.2
4.6
4.2
3.8
3.4
3.2
3.0
2.7
2.5
2.2
2.0
1.8
1.7
1.5
1.4
1.3
1.1
Maximum Zener
Impedance
ZZT @ IZT
Ohms
4.5
5.5
6.5
7.5
8.5
9.5
11.5
13
16
17
21
25
29
33
41
49
58
70
80
93
105
125
150
185
230
270
330
400
500
750
ZZK
Ohms
700
700
700
700
700
700
700
700
700
700
750
750
750
750
750
1000
1000
1000
1000
1000
1500
1500
2000
2000
2000
2000
3000
3000
3000
4000
@
IZK
mA
1.0
.5
.5
.5
.25
.25
.25
.25
.25
.25
.25
.25
.25
.25
.25
.25
.25
.25
.25
.25
.25
.25
.25
.25
.25
.25
.25
.25
.25
.25
Maximum DC
Zener
Current
IZM
mA
55
50
45
41
38
32
31
28
25
24
20
18
16
15
13
12
11
10
9.5
8.8
7.9
7.4
6.8
6.0
5.5
5.0
4.6
4.1
3.7
3.3
Maxmum Surge
Current
IZSM
mA
300
275
250
225
200
175
160
150
130
120
110
100
90
80
70
65
60
55
46
44
40
37
35
30
28
26
23
21
18
16
Maximum Reverse
Leakage
IR @ VR
μA
150
75
50
25
10
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
Volts
5.2
5.7
6.2
6.9
7.6
8.4
9.1
9.9
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
42.6
47.1
51.7
56.0
62.2
69.2
76.0
83.6
Maximum
Temperature
Coefficient
α
VZ
%/°C
+0.05
+0.058
+0.065
+0.068
+0.075
+0.076
+0.077
+0.079
+0.082
+0.083
+0.085
+0.086
+0.087
+0.088
+0.090
+0.091
+0.092
+0.093
+0.094
+0.095
+0.095
+0.096
+0.096
+0.097
+0.097
+0.098
+0.098
+0.099
+0.11
+0.11
NOTE 1:
The JEDEC type numbers shown (B Suffix) have a +5% tolerence on nominal Zener Votlage. The suffix A is used to identify +10%
tolerance; suffix C is used to identify +2%: and suffix D is used identify +1%; no suffix indicates +20%.
Revision Date: 7/2/2012
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