Electrical Characteristics
TA = 25°C unless otherwise noted
VZ @ IZT
(Volts)
ZZT @ IZT
(Ω)
Max
ZZK @ IZK
(Ω)
Max
IR @ VR
(µA)
Max
IZT
(mA)
IZK
(mA)
VR
(Volts)
Device Type
VZ
VZ
Min
Max
BZX85C 24
BZX85C 27
BZX85C 30
BZX85C 33
BZX85C 36
BZX85C 39
BZX85C 43
BZX85C 47
BZX85C 51
BZX85C 56
22.8
25.1
28
31
34
37
40
44
48
25.6
28.9
32
35
38
41
46
50
54
10
8
8
8
8
6
6
4
4
4
25
30
30
35
40
45
50
90
115
120
0.5
600
750
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
18
20
22
24
25
27
30
33
36
39
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
1000
1000
1000
1000
1000
1500
1500
2000
52
60
VF Forward Voltage = 1.2 V Maximum @ IF = 200 mA for all types
Notes:
1. The type numbers listed have zener voltage min/max limits as shown and have a standard tolerance on the nominal zener
voltage.
2. For detailed information on price, availability and delivery of nominal zener voltages between the voltages shown and tighter
voltage tolerances, contact your nearest Synsemi representative.
3. The zener impedance is derived from the 60-cycle ac voltage, which results when an ac current having an rms value equal to
10% of the dc zener current (IZT or IZK) is superimposed to IZT or IZK.
Electrical Symbol Definition
Typical Characteristics
I
Symbol
Parameter
(mA)
VZ
IZT
ZZT
IZK
ZZK
IR
Reverse Zener Voltage @ IZT
Reverse Current
IF
Maximum Zener Impedance @ IZT
Reverse Current
(mV)
V
Z VR
V
IR
IZT
VF
(V)
Maximum Zener Impedance @ IZK
Reverse Leakage Current @ VR
Breakdown Voltage
VR
IF
Forward Current
(nA)
(mA)
VF
Forward Voltage @ IF
Ordering Information
Device
Package
Bulk
Quantity
5,000
BZX85Cxxx
BZX85Cxxx.TB
Tape and Ammo
Tape and Reel
3,000
BZX85Cxxx.TR
5,000
October 2003 / B
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