1W Zener Diode
1SMA4738A thru 1SMA4764A
Surface Mount Zener Diodes Vz Range:8.2 to 100V Power Dissipation:1W
Features
■ Silicon power ...
Description
1SMA4738A thru 1SMA4764A
Surface Mount Zener Diodes Vz Range:8.2 to 100V Power Dissipation:1W
Features
■ Silicon power zener diodes ■ For use in stabilizing and clipping circuits
with high power rating. ■ Suffix”A” for ±5% tolerance.
Package: DO-214AC (SMA)
Maximum Rating (TA=25°C unless otherwise specified)
Parameter
Zener Current Power Dissipation at TL=70°C JunctionTemperature
Storage Temperature Range
Symbol
Ptot TJ TS
Value
See Next Page 1
150
-55to+150
Unit
W °C °C
Typical Thermal Resistance (Note1)
RθJA RθJL
125 30
Note1: Thermal resistance from junction to ambient & lead, mounted on PCB with 5.0×5.0mm copper pads
°C/W °C/W
Electrical Charateristics (TA=25°C unless otherwise specified)
Part number
1SMA4738A 1SMA4739A 1SMA4740A 1SMA4741A 1SMA4742A 1SMA4743A 1SMA4744A 1SMA4745A 1SMA4746A 1SMA4747A 1SMA4748A 1SMA4749A
Device Marking
Code
Nominal
Zener Voltage at
IZT Vz (Volts)(1)
Test Current IZT(mA)
Maximum Zener
Impedance(2)
ZZT at IZT ZZK At IZK (Ω) (Ω) (mA)
Maximum
Reverse
Leakage Current
IR(uA)
at VR (Volts)
4738A
8.2
31
4.5
700 0.5
10
6
4739A
9.1
28
5.0
700 0.5
10
7
4740A
10
25
7
700 0.25 10
7.6
4741A
11
23
8
700 0.25
5
8.4
4742A
12
21
9
700 0.25
5
9.1
4743A
13
19
10
700 0.25
5
9.9
4744A
15
17
14
700 0.25
5
11.4
4745A
16
15.5
16
700 0.25
5
12.2
4746A
18
14
20
750 0.25
5
13.7
4747A
20
12.5
22
750 0.25
5
15.2
4748A
22
11.5
23
750 0.25
5
16.7
4749A
24
10.5
25
750 0.2...
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