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BZX55B
SILICON PLANAR ZENER DIODES
Max. 0.5
Max. 1.9
Min. 27.5
Black
Cathode Band
Black
Part No.
Black
"ST" Brand
XXX
ST
Max. 3.9
Min. 27.5
Max. 0.45
Max. 1.9
Min. 27.5
Black
Cathode Band
Black
Part No.
XXX Max. 2.9
Min. 27.5
Glass Case DO-35
Dimensions in mm
Glass Case DO-34
Dimensions in mm
Absolute Maximum Ratings (Ta = 25 OC)
Parameter
Symbol
Value
Power Dissipation
Ptot 500 1)
Junction Temperature
Tj 175
Storage Temperature Range
TS - 55 to + 175
1) Valid provided that leads are kept at ambient temperature at a distance of 8 mm from case
Unit
mW
OC
OC
Characteristics at Ta = 25 OC
Parameter
Symbol
Max.
Thermal Resistance Junction to Ambient Air
RthA
0.3 1)
Forward Voltage
at IF = 100 mA
VF 1
1) Valid provided that leads are kept at ambient temperature at a distance of 8 mm from case.
Unit
K/mW
V
SEMTECH ELECTRONICS LTD.
(Subsidiary of Sino-Tech International Holdings Limited, a company
listed on the Hong Kong Stock Exchange, Stock Code: 724)
®
Dated : 12/06/2007

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BZX55B
Zener Voltage Range 1)
Type
Vznom lZT for
V mA
VZT
V
BZX55B2V0 2.0 5 1.96…2.04
BZX55B2V2 2.2 5 2.15…2.25
BZX55B2V4
BZX55B2V7
2.4 5
2.7 5
2.35…2.45
2.64…2.76
BZX55B3V0 3.0 5 2.94…3.06
BZX55B3V3 3.3 5 3.23…3.37
BZX55B3V6 3.6 5 3.52…3.68
BZX55B3V9
BZX55B4V3
3.9 5
4.3 5
3.82…3.98
4.21…4.39
BZX55B4V7 4.7 5
4.6…4.8
BZX55B5V1 5.1 5
4.99…5.2
BZX55B5V6 5.6 5 5.49…5.71
BZX55B6V2
BZX55B6V8
6.2 5
6.8 5
6.07…6.32
6.66…6.94
BZX55B7V5 7.5 5 7.35…7.65
BZX55B8V2 8.2 5 8.04…8.36
BZX55B9V1 9.1 5 8.92…9.28
BZX55B10
BZX55B11
10 5
9.8…10.2
11 5 10.8…11.2
BZX55B12
12 5 11.8…12.2
BZX55B13
13 5 12.7…13.3
BZX55B15
15 5 14.7…15.3
BZX55B16
BZX55B18
16 5 15.7…16.3
18 5 17.6…18.4
BZX55B20
20 5 19.6…20.4
BZX55B22
22 5 21.6…22.5
BZX55B24
24 5 23.5…24.5
BZX55B27
BZX55B30
27 5 26.4…27.6
30 5 29.4…30.6
BZX55B33
33 5 32.3…33.7
BZX55B36
36 5 35.2…36.8
BZX55B39
39 2.5 38.2…39.8
BZX55B43
BZX55B47
43 2.5 42.1…43.9
47 2.5
46…48
BZX55B51
51 2.5 49.9…52.1
BZX55B56
56 2.5 54.8…57.2
BZX55B62
62 2.5 60.7…63.3
BZX55B68
BZX55B75
68 2.5 66.6…69.4
75 2.5 73.5…76.5
BZX55B82
82 2.5 80.3…83.7
BZX55B91
91 1 89.1…92.9
BZX55B100 100 1
98…102
BZX55B110
BZX55B120
110 1 107.8…112.2
120 1 117.6…122.4
BZX55B130 130 1 127.4…132.6
BZX55B150 150 1
147…153
BZX55B160 160 1 156.8…163.2
BZX55B180 180 1 176.4…183.6
BZX55B200 200 1
196…204
1) Tested with pulses tp = 20 ms.
Dynamic Resistance
rZJT rZJK at IZK
Max.() Max.() mA
85 600 1
85 600 1
85 600 1
85 600 1
85 600 1
85 600 1
85 600 1
85 600 1
75 600 1
60 600 1
35 550 1
25 450 1
10 200 1
8 150 1
7 50 1
7 50 1
10 50 1
15 70 1
20 70 1
20 90 1
26 110 1
30 110 1
40 170 1
50 170 1
55 220 1
55 220 1
80 220 1
80 220 1
80 220 1
80 220 1
80 220 1
90 500 0.5
90 500 0.5
110 600 0.5
125 700 0.5
135 700 0.5
150 1000 0.5
200 1000 0.5
250 1000 0.5
300 1500 0.25
450 2000 0.1
450 5000 0.1
600 5000 0.1
800 5500 0.1
950 6000 0.1
1250 6500 0.1
1400 7000 0.1
1700 8500 0.1
2000 10000 0.1
Reverse Leakage Current
Temp. Coefficient
of Zener Voltage
Ta = 25OC Ta=125OC IR at VR
Max.(µA) Max.(µA) V
100 200 1
75 160 1
50 100 1
10 50 1
4 40 1
2 40 1
2 40 1
2 40 1
1 20 1
0.5 10 1
0.1 2 1
0.1 2 1
0.1 2 2
0.1 2 3
0.1 2 5
0.1 2 6.2
0.1 2 6.8
0.1 2 7.5
0.1 2 8.2
0.1 2 9.1
0.1 2 10
0.1 2 11
0.1 2 12
0.1 2 13
0.1 2 15
0.1 2 16
0.1 2 18
0.1 2 20
0.1 2 22
0.1 2 24
0.1 2 27
0.1 5 30
0.1 5 33
0.1 5 36
0.1 10 39
0.1 10 43
0.1 10 47
0.1 10 51
0.1 10 56
0.1 10 62
0.1 10 68
0.1 10 75
0.1 10 82
0.1 10 91
0.1 10 100
0.1 10 110
0.1 10 120
0.1 10 130
0.1 10 150
TKvz
%/K
-0.09...-0.06
-0.09...-0.06
-0.09...-0.06
-0.09...-0.06
-0.08...-0.05
-0.08...-0.05
-0.08...-0.05
-0.08...-0.05
-0.06...-0.03
-0.05...+0.02
-0.02…+0.02
-0.05…+0.05
0.03…0.06
0.03…0.07
0.03…0.07
0.03…0.08
0.03…0.09
0.03…0.1
0.03…0.11
0.03…0.11
0.03…0.11
0.03…0.11
0.03…0.11
0.03…0.11
0.03…0.11
0.04…0.12
0.04…0.12
0.04…0.12
0.04…0.12
0.04…0.12
0.04…0.12
0.04…0.12
0.04…0.12
0.04…0.12
0.04…0.12
0.04...0.12
0.04...0.12
0.04...0.12
0.04...0.12
0.05...0.12
0.05...0.12
0.05...0.12
0.05...0.12
0.05...0.12
0.05...0.12
0.05...0.12
0.05...0.12
0.05...0.12
0.05...0.12
SEMTECH ELECTRONICS LTD.
(Subsidiary of Sino-Tech International Holdings Limited, a company
listed on the Hong Kong Stock Exchange, Stock Code: 724)
®
Dated : 12/06/2007

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BZX55B
Breakdown characteristics
Tj = constant (pulsed)
mA
50 Tj=25oC
Iz 40
B2V7 B3V3
B2V0
B3V9
B4V7
B6V8
B5V6
30
BZX 55...
B8V2
20
Test current Iz
5mA
10
0
01
23 4 56 7
Vz
8 9 10 V
Breakdown characteristics
Tj = constant (pulsed)
mA
30
Iz
20
10
B10
B12
B15
Test current Iz
5mA
B18
B22
B27
BZX 55...
Tj=25 oC
B33
0
0
10 20
30 40 V
Vz
SEMTECH ELECTRONICS LTD.
(Subsidiary of Sino-Tech International Holdings Limited, a company
listed on the Hong Kong Stock Exchange, Stock Code: 724)
®
Dated : 12/06/2007