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