1N3305 thru 1N3350B
and 1N4549B thru 1N4556B
50 WATT ZENER DIODES
S C O T T S D A L E D I V I S I O N
*ELECTRICAL CHARACTERISTICS @ 30oC Case Temperature
NOMINAL
MAX. DYNAMIC
MAX. DC
ZENER
TYPICAL
TEMP.
ZENER
VOLTAGE
VZ @ IZT
Volts
(Note 2) †
3.9
IMPEDANCE (Note 3) †
MAX. REVERSE
CURRENT**
ZENER
TEST
CURRENT
COEFF.
JEDEC
IR(max) @ VR
CURRENT
(IZT) mA †
(IZM
)
α
TYPE NO.
(Note 1)
ZZT @ IZT
ZZK @ IZK = 5 mA
OHMS
400
500
600
650
900
1,000
200
100
70
VZ
OHMS
0.16
0.16
0.12
0.12
0.12
0.14
0.16
0.24
0.20
0.30
0.40
0.50
0.60
0.80
1.00
1.10
1.20
1.40
1.60
1.80
2.00
2.20
2.40
2.50
2.60
2.70
2.80
3.00
3.20
3.50
4.00
4.50
4.50
5.00
5.00
5.20
5.50
6.00
7.00
8.00
9.00
11.00
15.00
20.00
25.00
30.00
40.00
50.00
60.00
75.00
80.00
85.00
90.00
100.00
mA
11,900
10,650
9,700
8,900
8,100
7,300
6,650
6,050
6,600
5,900
5,200
4,800
4,300
3,900
3,800
3,300
3,000
2,800
2,650
2,500
2,300
2,200
2,100
1,900
1,750
1,550
1,500
1,400
1,300
1,150
1,050
975
%/oC
-0.046
-0.033
-0.015
+/-0.010
+0.030
+0.049
+0.053
+0.057
0.040
0.045
0.048
0.050
0.055
0.060
0.065
0.065
0.070
0.070
0.070
0.075
0.075
0.075
0.075
0.080
0.080
0.080
0.085
0.085
0.085
0.085
0.090
0.090
0.090
0.090
0.090
0.090
0.090
0.090
0.090
0.090
0.090
0.090
0.090
0.090
0.095
0.095
0.095
0.095
0.095
0.095
0.095
0.095
0.095
0.100
µA
150
150
100
20
20
20
10
10
300
125
50
25
25
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
VOLTS
†1N4549B
†1N4550B
†1N4551B
†1N4552B
†1N4553B
†1N4554B
1N4555B
1N4556B
†1N3305B
†1N3306B
†1N3307B
†1N3308B
†1N3309B
†1N3310B
†1N3311B
†1N3312B
1N3313B
†1N3314B
†1N3315B
1N3316B
†1N3317B
1N3318B
†1N3319B
†1N3320B
†1N3321B
1N3322B
†1N3323B
†1N3324B
†1N3325B
†1N3326B
†1N3327B
†1N3328B
1N3329B
†1N3330B
1N3331B
†1N3332B
1N3333B
†1N3334B
†1N3335B
†1N3336B
†1N3337B
†1N3338B
†1N3339B
†1N3340B
1N3341B
†1N3342B
†1N3343B
†1N3344B
1N3345B
†1N3346B
†1N3347B
1N3348B
†1N3349B
†1N3350B
3,200
2,900
2,650
2,450
2,250
2,000
1,850
1,650
1,850
1,700
1,500
1,370
1,200
1,100
1,000
960
0.5
0.5
4.3
4.7
1.0
5.1
1.0
5.6
1.0
6.2
2.0
6.8
2.0
7.5
3.0
6.8
4.5
7.5
70
5.0
8.2
70
5.4
9.1
70
6.1
10.0
11.0
12.0
13.0
14.0
15.0
16.0
17.0
18.0
19.0
20.0
22.0
24.0
25.0
27.0
30.0
33.0
36.0
39.0
43.0
45.0
47.0
50.0
51.0
52.0
56.0
62.0
68.0
75.0
82.0
91.0
100.0
105.0
110.0
120.0
130.0
140.0
150.0
160.0
175.0
180.0
80
6.7
80
8.4
80
9.1
80
9.9
890
80
11.4
11.4
12.2
13.0
13.7
13.7
15.2
16.7
18.2
18.2
20.6
22.8
25.1
27.4
29.7
32.7
32.7
35.8
38.8
38.8
42.6
42.6
47.1
51.7
56.0
62.2
69.2
76.0
83.0
83.0
91.2
99.8
114.0
114.0
121.6
121.6
136.8
152.0
830
80
780
80
740
80
700
80
660
80
630
80
570
80
520
80
500
90
460
90
420
90
380
90
350
90
320
90
290
90
280
100
100
100
100
100
110
120
140
150
160
180
200
210
220
240
275
325
400
450
500
525
600
930
270
880
250
830
245
810
240
790
220
740
200
660
180
600
170
540
150
490
140
420
120
400
120
380
110
365
100
335
95
310
90
290
85
270
80
250
70
230
68
220
*JEDEC Registere2d0D0.0ata. **N6o5t JEDEC Data.
200
†Have JAN and JANTX and TXV Qualifications to MIL-S-19500/358.
Copyright 2003
Microsemi
Page 2
11-12-2003 REV A
Scottsdale Division
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