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March 2003 / B
Page 1
TAK CHEONG
®
SEMICONDUCTOR
1 Watt DO-41 Hermetically
Sealed Glass Zener Voltage
Regulators
Absolute Maximum Ratings
TA = 25°C unless otherwise noted
Parameter
Value
Units
Storage Temperature Range
-65 to +200
°C
Maximum Junction Operating Temperature
+200
°C
Total Device Dissipation
1.0
Watt
Thermal Resistance Junction to Lead
53.5
°C / W
Thermal Resistance Junction to Ambient
100
°C / W
Lead Temperature (1/16” from case for 10 seconds)
+230
°C
These ratings are limiting values above which the serviceability of the diode may be impaired.
Specification Features:
Zener Voltage Range 3.3 to 56 Volts
DO-41 Package (JEDEC)
Through-Hole Device Type Mounting
Hermetically Sealed Glass
Compression Bonded Construction
All external surfaces are corrosion resistant and leads are readily solderable
Cathode indicated by polarity band
Electrical Characteristics
TA = 25°C unless otherwise noted
Device Type
VZ @ IZT
(Volts)
Nominal
IZT
(mA)
ZZT @ IZT
(
Ω)
Max
IZK
(mA)
ZZK @ IZK
(
Ω)
Max
IR @ VR
(
µA)
Max
VR
(Volts)
TC1N4728A
3.3
76
10
1
400
100
1
TC1N4729A
3.6
69
10
1
400
100
1
TC1N4730A
3.9
64
9
1
400
50
1
TC1N4731A
4.3
58
9
1
400
10
1
TC1N4732A
4.7
53
8
1
500
10
1
TC1N4733A
5.1
49
7
1
550
10
1
TC1N4734A
5.6
45
5
1
600
10
2
TC1N4735A
6.2
41
2
1
700
10
3
TC1N4736A
6.8
37
3.5
1
700
10
4
TC1N4737A
7.5
34
4
0.5
700
10
5
TC1N4738A
8.2
31
4.5
0.5
700
10
6
TC1N4739A
9.1
28
5
0.5
700
10
7
TC1N4740A
10
25
7
0.25
700
10
7.6
TC1N4741A
11
23
8
0.25
700
5
8.4
TC1N4742A
12
21
9
0.25
700
5
9.1
TC1N4743A
13
19
10
0.25
700
5
9.9
TC1N4744A
15
17
14
0.25
700
5
11.4
TC1N4745A
16
15.5
16
0.25
700
5
12.2
TC1N4746A
18
14
20
0.25
700
5
13.7
TC1N4747A
20
12.5
22
0.25
750
5
15.2
TC1N4748A
22
11.5
23
0.25
750
5
16.7
Cathode
Anode
ELECTRICAL SYMBOL
AXIAL LEAD
DO41
L
1N
47
xx
A
DEVICE MARKING DIAGRAM
L
: Logo
Device Code : TC1N47xxA