Zener Diodes. SMA4748A Datasheet

SMA4748A Diodes. Datasheet pdf. Equivalent

Part SMA4748A
Description Surface Mount Zener Diodes
Feature SMA4728A-SZ1330A VZ: 3.3 to 330 V PD: 1 W Features ● Glass passivated chip ● Low leakage ● Built-in.
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SMA47 SERIES () Zener Diodes ■ Features ●Ptot 1.0W ●Vz 3.3V- SMA4748A Datasheet
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SMA4748A
SMA4728A-SZ1330A
VZ: 3.3 to 330 V
PD: 1 W
Features
Glass passivated chip
Low leakage
Built-in strain relief
Low inductance
High peak reverse power dissipation
Lead (Pb)-free component
For use in stabilizing and clipping circuits
with high power rating
Mechanical Data
Case: Molded plastic
Epoxy: UL 94V-0 rate flame retardant
Lead: Solderable per MIL-STD-750,
method 2026
Polarity: Color band denotes cathode end
Mounting position: Any
Surface Mount
Zener Diodes
SMA/ DO-214AC
Maximum Ratings(TA=25unless otherwise noted)
Parameter
DC power dissipation at TL = 75 °C
Maximum forward voltage at IF = 200 mA
Maximum thermal resistance junction to ambient air
Junction temperature range
Storage temperature range
Symbol
PD
VF
RӨJA
TJ
TSTG
Value
1
1.2
170
- 55 to + 175
- 55 to + 175
Unit
W
V
°C/W
°C
°C
Revision: F
Aug-10-2017
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SMA4748A
SMA4728A-SZ1330A
Ratings and Characteristics Curves (TA=25unless otherwise noted)
1.0
0 0.8 1
75 1
10.560 0
0.4
0.2
100
10 14 10 10.6
20 22 20 17
30 30 30 24
40 40 50 Ran4ge0.2
10 50 50 70 58
70 70 90 78
90 90 100 90
97 100
0.0
0
25 50 75 100 125 150 175 200
Lead Temperature ,TL ()
1
10
Zener Voltage, Vz, (V)
100
Fig. 1 - Power Temperature Derating Curve
Fig. 2 - Temperature Coefficients v.s. Zener
Voltage
Tr=10μs
TJ = 25 °C
100
Peak Value
(Ipp)
Pulse Width (td) is defined as the
point where the peak current
decays to 50 % of Ipp
Half Value = Ipp
2
50
10/1000 μsec. Waveform
as defined by R.E.A.
td
0
0123
Time , (ms)
Fig. 3 - Pulse Waveform
4
100
0.02 100
5% 2D0uty Cyc6le.1
0.01
15
90
5.5
1000 2.5 1000 1.7
10
10% Duty Cycle
20% Duty Cycle
1
0.01
0.1
0.01
27 0.01
0.04 11V-91V Non1-R9epetit0iv.e09
14 R0e.c0ta1ngular W4.a9veform
10 TJ=285°C Prior t4o Initial Pulse
0.15
14 0.4 8 100 2.1
0.7 10 0.8 7.1
1 9 26
3 7 55
5 6.1 10 4.2
9 5 100 2.1
40 3
1 P1u0ls0e Width, PW, (s) 2.110
100 1000
Fg. 4 - Maximum Surge Power
Revision: F
Aug-10-2017
www.anova-semi.com
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