SURFACE MOUNT
ZENER DIODES
1SMA4728A-1SMA4764A
VZ : 3.3 - 100Volts
PD : 1 Watt
SMA-L
1.3 ± 0.2
FEATURES :
* Complete voltage range 3.3 to 100 volts
* High peak reverse power dissipation
* High reliability
1.8 ± 0.2
* Low leakage current
2.3 ± 0.2
2.7 ± 0.2
* Standard zener voltage tolerance is ± 5%.
* Pb / RoHS Free
1.8 ± 0.2
MECHANICAL DATA :
* Case : SMA-L Molded plastic
Dimensions in millimeter
* Epoxy : UL94V-O rate flame retardant
* Polarity : Color band denotes cathode end
* Mounting position : Any
* Weight : 0.060 gram (Approximately)
MAXIMUM RATINGS
Rating at 25°C ambient temperature unless otherwise specified
Rating
Symbol
Value
1.0
Unit
W
DC Power Dissipation at TL = 75 °C (Note1)
Maximum Forward Voltage at IF = 200 mA
Junction Temperature Range
PD
VF
TJ
1.2
V
- 55 to + 150
- 55 to + 150
°C
TS
Storage Temperature Range
°C
Note :
(1) P.C.B. Mounted on 0.31x0.31x0.08" (8x8x2mm) copper areas pad
Fig. 1 MAXIMUM CONTINUOUS POWER DERATING
1.25
1.00
0.75
0.50
0.25
0
P.C.B. Mounted on
0.31x0.31x0.08" (8x8x2mm)
copper areas pads
0
25
50
75
100
125
150
175
TL, LEAD TEMPERATURE (°C)
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Rev. 03: January 14, 2006