DATA SHEET
1SMC5348 SERIES
SURFACE MOUNT SILICON ZENER DIODES
VOLTAGE
FEATURES
• For surface mounted applications in order to optimize board space.
• Low profile package
.128(3.25)
.108(2.75)
11 to 39 Volts
CURRENT
5.0 Watts
SMC/DO-214AB
Unit: inch (mm)
• Glass passivated junction
• Low inductance
• Typical I
D
less than 1.0µA above 13V
• Plastic package has Underwriters Laboratory Flammability
Classification 94V-O
• Both normal and Pb free product are available :
Normal : 80~95% Sn, 5~20% Pb
.280(7.11)
.260(6.60)
.012(.305)
.006(.152)
.103(2.62)
.079(2.00)
Pb free: 98.5% Sn above
MECHANICALDATA
Case: JEDEC DO-214AB,Molded plastic over passivated junction.
Terminals: Solder plated,solderable per MIL-STD-750, Method 2026
Polarity: Color band denotes positive end (cathode)
Standard Packaging:16mm tape (EIA-481)
Weight: 0.007 ounce, 0.21 gram
.050(1.27)
.030(0.76)
.320(8.13)
.305(7.75)
.008(.203)
.002(.051)
MAXIMUM RATINGS AND ELECTRICAL CHARACTERISTICS
Ratings at 25°C ambient temperature unless otherwise specified.
Parameter
DC Power Dissipation on T
L
=75
O
C ,Measure at Zero Lead Length
Derate above 50
O
C ( NOTE 1)
Operating Junction and StorageTemperature Range
Symbol
Value
5.0
40
-55 to +150
P
D
T
J
, T
STG
.245(6.22)
.220(5.59)
• Built-in strain relief
Units
Watts
mW /
O
C
O
C
NOTE:
1.Mounted on 8.0mm
2
copper pads to each terminal.
STAD-JUN.23.2004
PAGE . 1
RATING AND CHARACTERISTIC CURVES
qVz,
TEMPERATURE COEFFICIENT
(mV/C)@IZT
8
P
D
, MAXIMUM STEADY STATE
POWER DISSIPATION (WATTS)
300
200
100
RANGE
6
50
30
20
10
5
0
20
40
60
80
100
120
140
160
180
200
220
4
2
0
0
30
60
90
O
120
150
T
L
, LEAD TEMPERATURE ( C)
Vz,ZENER VOLTAGE@Iz
T
(VOLTS)
Fig.1 Power temperature Derating Curve
Fig.2 Temperature Coefficient-Range
for Units 11 to 39 Volts
30
ir, PEAK SURGE CURRENT (AMPS)
1000
20
10
5
2
1
0.5
IZ, ZENER CURRENT (mA)
Vz=3.3V
T=25
O
C
100
10
Vz=200V
1
0.2
0.1
0.1
1
10
100
1000
10
20
30
40
50
PW, PULSE WIDTH (ms)
Vz, ZENER VOLTAGE (VOLTS)
Fig.3 Peak Surge Current versus Pulse Width
Fig.4 Zener Voltage versus Zener Current
Vz=11 thru 39 Volts
STAD-JUN.23.2004
PAGE . 3
Power technology
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