®
TAK CHEONG
SEM IC O N DU C TO R
Electrical Characteristics
Device Type
V
Z
@ I
ZT
(Volts)
Min
Max
TCBZX55B 51
49.98
52.02
2.5
125
TCBZX55B 56
54.88
57.12
2.5
135
TCBZX55B 62
60.76
63.24
2.5
150
TCBZX55B 68
66.64
69.36
2.5
160
TCBZX55B 75
73.50
76.50
2.5
170
V
F
Forward Voltage = 1.0 V Maximum @
I
F
= 100 mA for all types
T
A
= 25°C unless otherwise noted
Z
ZT
@ I
ZT
I
ZT
(Ω)
(mA)
Max
I
ZK
(mA)
0.5
0.5
0.5
0.5
0.5
Z
ZK
@ I
ZK
(Ω)
Max
700
1000
1000
1000
1000
I
R
@ V
R
(μA)
Max
0.1
0.1
0.1
0.1
0.1
V
R
(Volts)
38
42
47
51
56
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 (V
Z
) MEASUREMENT
The zener voltage is measured under pulse conditions such that T
J
is no more than 2℃ above T
A
.
4. ZENER IMPEDANCE (Z
Z
) 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 (I
ZT
) is superimposed to
I
ZT
.
Number: DB-034
June 2008 / F
Page 3
TAK_CHEONG [ Tak Cheong Electronics (Holdings) Co.,Ltd ]
