®
TAK CHEONG
SEMICONDUCTOR
Electrical Characteristics
TA = 25°C unless otherwise noted
VZ @ IZT
ZZT @ IZT
(Ω)
ZZK @ IZK
(Ω)
Max
IR @ VR
(μA)
Max
IZT
IZK
(mA)
VR
(Volts)
Device Type
(Volts)
(mA)
Max
Min
Max
TCBZX55B 51
TCBZX55B 56
TCBZX55B 62
TCBZX55B 68
TCBZX55B 75
49.98
54.88
60.76
66.64
73.50
52.02
57.12
63.24
69.36
76.50
2.5
2.5
2.5
2.5
2.5
125
135
150
160
170
0.5
0.5
0.5
0.5
0.5
700
0.1
0.1
0.1
0.1
0.1
38
42
47
51
56
1000
1000
1000
1000
VF Forward Voltage = 1.0 V Maximum @ IF = 100 mA for all types
Notes:
1. TOLERANCE AND VOLTAGE DESIGNATION
The type numbers listed have zener voltage as shown.
2. SPECIALS AVAILABLE INCLUDE
Nominal zener voltages between the voltages shown and tighter voltage, for detailed information on price, availability and delivery,
contact you nearest Tak Cheong representative.
3. ZENER VOLTAGE (VZ) MEASUREMENT
The zener voltage is measured under pulse conditions such that TJ is no more than 2℃ above TA.
4. ZENER IMPEDANCE (ZZ) DERIVATION
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) is superimposed to IZT
.
Number: DB-034
June 2008 / F
Page 3
TAK_CHEONG [ Tak Cheong Electronics (Holdings) Co.,Ltd ]
