BZX55C Series
ELECTRICAL CHARACTERISTICS (TA = 25ºC unless otherwise noted, VF = 1.3 V Max @ IF = 100mA for all types)
Max Reverse
Leakage Current
IR at VR
Max Zener
Impedance
VZT @ IZT
(Volts)
(Note 7)
IZM
Tamb
25°C
Tamb
125°C
ZZT @ IZT
IZT
VR
(Note 5.)
(Note 6.)
Device
Marking
Min
Max
Device
(Ω)
(mA)
(µA)
(µA)
(Volts)
(mA)
BZX55C16
BZX55C18
BZX55C20
BZX55C22
BZX55C24
BZX55C27
BZX55C30
BZX55C33
BZX55C36
BZX55C39
BZX55C43
BZX55C47
BZX55C51
BZX55C56
BZX55C62
BZX55C68
BZX55C75
BZX55C82
BZX55C91
55C16
55C18
55C20
55C22
55C24
55C27
55C30
55C33
55C36
55C39
55C43
55C47
55C51
55C56
55C62
55C68
55C75
55C82
55C91
15.3
16.8
18.8
20.8
22.8
25.1
28
17.1
19.1
21.1
23.3
25.6
28.9
32
40
50
5
5
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
2
2
12
14
15
17
18
20
22
24
27
28
32
35
38
42
47
51
56
62
69
24
21
20
18
16
14
13
12
11
10
9.2
8.5
7.8
7
55
5
2
55
5
2
80
5
2
80
5
2
80
5
2
31
35
80
5
2
34
38
80
5
2
37
41
90
2.5
2.5
2.5
2.5
2.5
2.5
2.5
2.5
2.5
1
5
40
46
90
5
44
50
110
125
135
150
160
170
200
250
5
48
54
10
10
10
10
10
10
10
52
60
58
66
6.4
5.9
5.3
4.8
4.3
64
72
70
80
77
87
85
96
5. TOLERANCE AND VOLTAGE DESIGNATION (VZt)
Tolerance designation – the type numbers listed have zener voltage min/max limits as shown. Device tolerance of ±2% are
Indicated by a “B” instead of a “C”. Zener voltage is measured with the device junction thermal equilibrium at the temperature
of 30°C ±1°C and 3/8” lead length.
6. MAXIMUM ZENER CURRENT RATINGS (IZM
)
This data was calculated using nominal voltages. The maximum current handling capability on a worst case basis is limited
by the actual zener voltage at the operation point and the power derating curve.
7. ZENER IMPEDANCE (ZZ) DERIVATION
ZZT and ZZK are measured by dividing the AC voltage drop across the device by the AC current applied. The specified limits
are for IZ(AC) = 0.1 IZ(DC) with AC frequency = 60Hz.
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