SMA4728A
THRU
SZ1330A
TECHNICAL SPECIFICATIONS OF SURFACE MOUNT ZENER DIODES
VOLTAGE RANGE - 3.3 to 330 Volts
POWER - 1.0 Watt
Dimensions in inches and (millimeters)
* Voltage Range:3.3V to 330V
* Low zener impedance
* Low regulation factor
* High reliability
* Glass passivated junction
* Case: Molded plastic
* Epoxy: UL 94V-0 rate flame retardant
* Terminals:Solder plated, solderable per
MIL-STD-750, Method 2026
* Polarity: As marked
* Mounting position: Any
* Weight: 0.064 gram
SMA(DO-214AC)
.208(5.3)
.185(4.7)
.062(1.6)
.055(1.4)
.114(2.9)
.098(2.5)
.012(0.3)
.004(0.1)
.095(2.4)
.078(2.0)
.060(1.5)
.031(0.8)
.181(4.6)
.157(4.0)
.008(0.2)
.004(0.1)
SYMBOL
VALUE
UNITS
Maximum Power Dissipation @TL=75oC (Note 1)
Ptot
1.0
W
Maximum forward voltage at IF=200mA
VF
1.2
Volts
Maximum Thermal Resistance Junction to Ambient Air
R
θJA
170
o
C/W
Junction Temperature Range
TJ
-55 to +150
o
C
Storage Temperature Range
TSTG
-55 to +150
o
C
Fig. 2
TYPICAL THERMAL RESISTANCE
VERSUS LEAD LENGTH
Lead Length to Heatsink , L, (inches)
150
125
100
75
50
25
0
0.2
0.4
0.6
0.8
175
Fig. 1
POWER TEMPERATURE
DERATING CURVE
0
50
100
150
AMBIENT TEMPERATURE, Ta(oC)
1
1.2
0.8
0.6
0.4
0.2
1.0
1.2
MAXIMUM RATINGS AND ELECTRICAL CHARACTERISTICS
Ratings at 25
oC ambient temperature unless otherwise specified.
Single phase, half wave, 60 Hz, resistive or inductive load.
For capacitive load, derate current by 20%.
FEATURES
MECHANICAL DATA
NOTE: Suffix "A" indicates Zener Voltage Tolerance ± 5%
RECTIFIER SPECIALISTS
R
DC COMPONENTS CO., LTD.
www.dccomponents.com
1
REV-1,FEBRUARY,2015
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