TC1N4728A_10 Datasheet, PDF (2/5 Pages) Tak Cheong Electronics (Holdings) Co.,Ltd – 1 Watt DO-41 Hermetically Sealed Glass Zener Voltage Regulators

®
TAK CHEONG
Electrical Characteristics
Device Type
VZ @ IZT
(Volts)
Nominal
TA = 25°C unless otherwise noted
IZT
(mA)
ZZT @ IZT
()
Max
IZK
(mA)
TC1N4745A
16
15.5
16
0.25
TC1N4746A
18
14
20
0.25
TC1N4747A
20
12.5
22
0.25
TC1N4748A
22
11.5
23
0.25
TC1N4749A
24
10.5
25
0.25
TC1N4750A
27
9.5
35
0.25
TC1N4751A
30
8.5
40
0.25
TC1N4752A
33
7.5
45
0.25
TC1N4753A
36
7
50
0.25
TC1N4754A
39
6.5
60
0.25
TC1N4755A
43
6
70
0.25
TC1N4756A
47
5.5
80
0.25
TC1N4757A
51
5
95
0.25
TC1N4758A
56
4.5
110
0.25
VF Forward Voltage = 1.2 V Maximum @ IF = 200 mA for all types
ZZK @ IZK
()
Max
700
700
750
750
750
750
1000
1000
1000
1000
1500
1500
1500
2000
SEMICONDUCTOR
IR @ VR
(A)
Max
5
5
5
5
5
5
5
5
5
5
5
5
5
5
VR
(Volts)
12.2
13.7
15.2
16.7
18.2
20.6
22.8
25.1
27.4
29.7
32.7
35.8
38.8
42.6
Notes:
1. TOLERANCE AND TYPE NUMBER DESIGNATION (VZ)
The type numbers listed have a standard tolerance on the nominal zener voltage of ± 5%. Device tolerance of 2% is indicated by a
“C” instead of an “A”.
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 (VZ) is tested under pulse condition.
4. ZENER IMPEDANCE (ZZ) DERIVATION
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 on IZT or IZK.
Number: DB-031
July 2010/ G
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