SZN4954 thru SZN4996
Solid State Devices, Inc.
14701 Firestone Blvd * La Mirada, Ca 90638
Phone: (562) 404-4474 * Fax: (562) 404-1773
ssdi@ssdi-power.com * www.ssdi-power.com
Designer’s Data Sheet
FEATURES:
Hermetically Glass Sealed
High Power Dissipation 5W
Tight Voltage Tolerance 5%
For other Voltage, Power, or Tolerance Consult Factory.
TX, TXV, and S-Level Screening Available
5/
.
Replacement for 1N4954 – 1N4996
5W
6.8 – 390 VOLTS
ZENER DIODES
•
•
•
•
•
•
DIM
A
B
C (__)
C (K)
D
MIN.
---
---
.047”
.038”
1.00”
MAX
.158”
.185”
.053”
.042”
---
Part Number/Ordering Information
4/
SZN
__
│
│
│
│
│
│
│
└
__ __
5/
__
= Not Screened
│
└
Screening
TX = TX Level
│
TXV = TXV
│
S = S Level
│
6/
└
Package Type
__ = Axial Leaded
SMS = Surface Mount Square Tab
K = 40 Mil Lead Diameter
Device / Voltage
4954 - 4996
AXIAL (K & __)
All dimensions are prior to soldering
DIM
A
B
C
D
MIN.
.155”
.190”
.023”
Body to Tab Clearance: .001”
MAX.
.185”
.220”
.027”
SQUARE TAB (SMS)
All dimensions are prior to soldering
Maximum Ratings
Symbol
SZN4954-4996
Units
Nominal Zener Voltage
Continuous Power @ 65ºC
Operating and Storage Temp.
Thermal Resistance
Junction to Lead, L=3/8” (Axial)
(__)
K - axial
V
Z
P
D
Top,Tstg
R
θJL
R
θJE
6.8 - 390
5
-65 to +175
34
45
7
V
W
ºC
ºC/W
ºC/W
Thermal Resistance
Junction to End Cap (SMS)
NOTE:
All specifications are subject to change without notification.
SCD's for these devices should be reviewed by SSDI prior to release.
DATA SHEET #: Z00010D
DOC
Solid State Devices, Inc.
14701 Firestone Blvd * La Mirada, Ca 90638
Phone: (562) 404-4474 * Fax: (562) 404-1773
ssdi@ssdi-power.com * www.ssdi-power.com
SZN4954 thru SZN4996
Electrical Characteristics @ 25°C (Unless Otherwise Specified)
V
Z
PART
NUMBER
@ I
Z (1)
V
Z
@ I
Z (1)
V
Z
@ I
Z (1)
I
Z (1)
Test
Current
Z
Z
Imp.
@ I
Z (1)
Z
ZK
Knee
Imp.
@ I
ZK
Max
Ω
450
409
371
338
307
322
338
344
351
358
365
373
I
ZK
Test
Current
I
Z
Max dc
Current
V
Z
(reg) I
ZSM
@ 10 to
50 % of
I
Z
Max
Max
V
0.7
0.7
0.7
0.7
0.8
0.8
0.8
0.9
1.0
1.1
1.2
1.5
Peak
Surge
V
R
Test
Voltage
I
R
Reverse
Current
@ Vr
Max
μA
500
400
200
100
75
60
50
25
15
10
10
10
∞vz
Temp.
Coeff.
@ I
Z (1)
Max
% / ºC
.05
.06
.06
.06
.07
.07
.07
.08
.08
.08
.085
.085
I
R
Reverse
Current
+150
ºC
Max
μA
750
500
300
200
200
150
150
150
100
100
100
100
Nom
V
SZN4954
SZN4955
SZN4956
SZN4957
SZN4958
SZN4959
SZN4960
SZN4961
SZN4962
SZN4963
SZN4964
SZN4965
6.8
7.5
8.2
9.1
10.0
11.0
12.0
13.0
15
16
18
20
Min
V
6.46
7.13
7.79
8.65
9.50
10.45
11.40
12.35
14.25
15.20
17.10
19.00
Max
V
7.14
7.87
8.61
9.55
10.50
11.55
12.60
13.65
15.75
16.80
18.90
21.00
---
mA
175
175
150
150
125
125
100
100
75
75
65
65
Max
Ω
1
1.5
1.5
2
2
2.5
2.5
3
3.5
3.5
4.0
4.5
---
mA
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
Rating
mA
700
630
580
520
475
430
395
365
315
294
264
237
Rating
A
29.3
26.4
24
22
20
19
18
16
12
10
9.0
8.0
---
V
5.2
5.7
6.2
6.9
7.6
8.4
9.1
9.9
11.4
12.2
13.7
15.2
SZN4966
SZN4967
SZN4968
SZN4969
SZN4970
22
24
27
30
33
20.90
22.8
25.7
28.5
31.4
23.10
25.2
28.3
31.5
34.6
50
50
50
40
40
5.0
5
6
8
10
380
388
396
403
412
1.0
1.0
1.0
1.0
1.0
216
198
176
158
144
1.8
2.0
2.0
2.5
2.8
7.0
6.5
6.0
5.5
5.0
16.7
18.2
20.6
22.8
25.1
10
10
10
10
5.0
.085
.09
.09
.09
.095
100
100
100
100
100
SZN4971
SZN4972
SZN4973
SZN4974
SZN4975
SZN4976
SZN4977
SZN4978
SZN4979
SZN4980
SZN4981
SZN4982
SZN4983
SZN4984
SZN4985
SZN4986
SZN4987
SZN4988
SZN4989
SZN4990
36
39
43
47
51
56
62
68
75
82
91
100
110
120
130
150
160
180
200
220
34.2
37.1
40.9
44.7
48.5
53.2
58.9
64.6
71.3
77.9
86.5
95.0
104.5
114.0
123.5
142.5
152
171
190
209
37.8
40.9
45.1
49.3
53.5
58.8
65.1
71.4
78.7
86.1
95.5
105
115.5
126.0
136.5
157.5
168
189
210
231
30
30
30
25
25
20
20
20
20
15
15
12
12
10
10
8
8
5
5
5
11
14
20
25
27
35
42
50
55
80
90
110
125
170
190
330
350
450
500
550
420
428
437
445
473
560
700
750
800
850
900
950
1000
1050
1100
1150
1200
1250
1300
1333
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
132
122
110
100
92
84
76
70
63
58
52.5
47.5
43
39.5
36.6
31.6
29.4
26.4
23.6
21.6
3.0
3.0
3.3
3.5
4.0
4.4
5.0
5.5
6.0
6.6
7.5
8.0
9.0
10
11
13
14
16
18
19
4.5
4.0
3.5
3.2
3.0
2.8
2.5
2.2
2.0
1.8
1.6
1.4
1.2
1.0
0.8
0.75
0.70
0.60
0.50
0.50
27.4
29.7
32.7
35.8
38.8
42.6
47.1
51.7
56
62.2
69.2
76.0
83.6
91.2
98.8
114.0
121.6
136.8
152.0
167.0
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
.095
.095
.095
.095
.095
.095
.100
.100
.100
.100
.100
.100
.100
.100
.105
.105
.105
.110
.110
.115
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
NOTE:
All specifications are subject to change without notification.
SCD's for these devices should be reviewed by SSDI prior to release.
DATA SHEET #: Z00010D
DOC
Solid State Devices, Inc.
14701 Firestone Blvd * La Mirada, Ca 90638
Phone: (562) 404-4474 * Fax: (562) 404-1773
ssdi@ssdi-power.com * www.ssdi-power.com
SZN4954 thru SZN4996
Electrical Characteristics @ 25°C (Unless Otherwise Specified)
V
Z
PART
NUMBER
@ I
Z (1)
V
Z
@ I
Z (1)
V
Z
@ I
Z (1)
I
Z (1)
Test
Current
Z
Z
Imp.
@ I
Z (1)
Z
ZK
Knee
Imp.
@ I
ZK
Max
Ω
I
ZK
Test
Current
I
Z
Max dc
Current
V
Z
(reg) I
ZSM
@ 10 to
50 % of
I
Z
Max
Max
V
Peak
Surge
V
R
Test
Voltage
I
R
Reverse
Current
@ Vr
Max
μA
∞vz
Temp.
Coeff.
@ I
Z (1)
Max
% / ºC
I
R
Reverse
Current
+150
ºC
Max
μA
Nom
V
Min
V
Max
V
---
mA
Max
Ω
---
mA
Rating
mA
Rating
A
---
V
SZN4991
SZN4992
9/
SZN4993
9/
SZN4994
9/
SZN4995
SZN4996
9/
240
270
300
330
360
390
228
257
285
314
342
371
252
283
315
346
378
409
5
5
4
4
3
3
650
800
950
1,175
1,400
1,800
1367
1400
1433
1467
1533
1667
1.0
1.0
1.0
1.0
1.0
1.0
19.8
17.5
15.6
14.4
13.0
12.0
22
25
28
32
35
40
0.40
0.35
0.30
0.25
0.22
0.20
182.0
206.0
228.0
251.0
274.0
297.0
2.0
2.0
2.0
2.0
2.0
2.0
.115
.120
.120
.120
.120
.120
100
100
100
100
100
100
NOTES:
1/ All zener voltages are measured with an automated test set using a 10 - 50 msec test time. Longer or shorter test time will have a corresponding effect on the measured
value due to heating effects.
2/ Zener impedance is derived from the AC voltage divided by the AC current with RMS value of 10% of DC zener test current superimposed on the test current.
3/ SSDI standard marking consists of a contrasting color cathode dot or band. Part number information is included on packaging labels.
4/ For Ordering Information, Price, and Availability- Contact Factory.
5/ Screening based on MIL-PRF-19500. Screening flows available on request.
6/ Suffix “SMS” for Square Tab Surface Mount.
7/ For tighter tolerances, consult the factory.
8/ Figures shown are for a peak sinusoidal surge current of 8.3 msec duration, repeated a maximum of 1 surge per minute.
9/ Contact factory for availability
NOTE:
All specifications are subject to change without notification.
SCD's for these devices should be reviewed by SSDI prior to release.
DATA SHEET #: Z00010D
DOC
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