1SMA4743A Datasheet, PDF (1/5 Pages) Won-Top Electronics – 1.0W SURFACE MOUNT ZENER DIODE

®
WON-TOP ELECTRONICS
Features
 Glass Passivated Die Construction
 1.0W Power Dissipation
 3.3V – 330V Nominal Zener Voltage
 5% Standard Vz Tolerance
 Low Inductance
 For Use in Voltage Regulator or Reference
 Plastic Case Material has UL Flammability
Classification Rating 94V-0
A
C
Mechanical Data
 Case: SMA/DO-214AC, Molded Plastic
 Terminals: Solder Plated, Solderable
per MIL-STD-750, Method 2026
 Polarity: Cathode Band
 Marking: Device Code
 Weight: 0.064 grams (approx.)
 Lead Free: For RoHS / Lead Free Version,
Add “-LF” Suffix to Part Number, See Page 5
1SMA4728A – SZ1330A
1.0W SURFACE MOUNT ZENER DIODE
Pb
B
D
F
H
G
E
SMA/DO-214AC
Dim
Min
Max
A
2.29
2.92
B
4.00
4.60
C
1.27
1.90
D
0.152
0.305
E
4.80
5.30
F
2.00
2.44
G
0.051
0.203
H
0.76
1.52
All Dimensions in mm
Maximum Ratings @T_A=25°C unless otherwise specified
Characteristic
Power Dissipation at T_L = 75°C (Note 1)
Forward Voltage @ IF = 200mA
Thermal Resistance, Junction to Ambient (Note 2)
Thermal Resistance, Junction to Lead (Note 2)
Operating and Storage Temperature Range
Symbol
PD
VF
RǀJA
RǀJL
TJ, TSTG
Value
1.0
1.2
125
30
-65 to +150
Note: 1. Mounted on FR-4 PCB with 8.0 x 8.0 x 2.0mm copper pads.
2. Mounted on 25.4 x 21.6 x 1.6mm ceramic substrate with minimum recommended pad layout.
Unit
W
V
°C/W
°C
© Won-Top Electronics Co., Ltd.
Revision: September, 2012
www.wontop.com
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