TAK CHEONG ®
SEMICONDUCTOR
Electrical Characteristics
TA = 25°C unless otherwise noted
Z
ZT @ IZT
(Ω)
Max
IR @ VR
(μA)
Max
VZ @ IZT
(Volts)
Nominal
IZT
(mA)
VR
(Volts)
Device Type
TCMZ16V
TCMZ18V
TCMZ20V
TCMZ22V
TCMZ24V
TCMZ27V
TCMZ30V
TCMZ33V
TCMZ36V
TCMZ39V
TCMZ43V
TCMZ47V
TCMZ51V
TCMZ56V
TCMZ62V
TCMZ68V
TCMZ75V
16
18
20
22
24
27
30
33
36
39
43
47
51
56
62
68
75
5
5
5
5
5
2
2
2
2
2
2
2
2
2
2
2
2
40
45
45
30
35
45
55
65
75
85
90
90
110
110
201
230
240
0.2
0.2
0.2
0.2
0.2
0.2
0.2
0.2
0.2
0.2
0.2
0.2
0.2
0.2
0.2
0.2
0.2
12
13
15
17
19
21
23
25
27
30
33
36
39
43
47
51
56
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 of 5%.
2. For detailed information on price, availability and delivery of nominal zener voltages between the voltages shown and tighter
voltage tolerances, contact your nearest Tak Cheong Electronics 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.
Number: DB-053
June 2008 / C
Page 2