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
Nominal Zener Voltage
Part Number
Marking
C ode
No m. V
5.0 Watt Zener
1SMC5348
1SMC5349
1SMC5350
1SMC5351
1SMC5352
1SMC5353
1SMC5354
1SMC5355
1SMC5356
1SMC5357
1SMC5358
1SMC5359
1SMC5360
1SMC5361
1SMC5362
1SMC5363
1SMC5364
1SMC5365
1SMC5366
348B
349B
350B
351B
352B
353B
354B
355B
356B
357B
358B
359B
360B
361B
362B
363B
364B
365B
366B
11.0
12.0
13.0
14.0
15.0
16.0
17.0
18.0
19.0
20.0
22.0
24.0
25.0
27.0
28.0
30.0
33.0
36.0
39.0
10.5
11.4
12.4
13.3
14.3
15.2
16.2
17.1
18.1
19.0
20.9
22.8
23.8
25.7
26.6
28.5
31.4
34.2
37.1
11.6
12.6
13.7
14.7
15.8
16.8
17.9
18.9
20.0
21.0
23.1
25.2
26.3
28.4
29.4
31.5
34.7
37.8
41.0
2.5
2.5
2.5
2.5
2.5
2.5
2.5
2.5
3.0
3.0
3.5
3.5
4.0
5.0
6.0
8.0
10.0
11.0
14.0
V
Z
@ I
ZT
M i n. V
M a x. V
Ω
Max. Zener Impedance
Z
ZT
@ I
ZT
mA
Z
ZK
@ I
ZK
Ω
mA
Max Reverse
Leakage Current
I
R
@ V
R
uA
V
125.0
100.0
100.0
100.0
75.0
75.0
70.0
65.0
65.0
65.0
50.0
50.0
50.0
50.0
50.0
40.0
40.0
30.0
30.0
125
125
100
75
75
75
75
75
75
75
75
100
110
120
130
140
150
160
170
1.00
1.00
1.00
1.00
1.00
1.00
1.00
1.00
1.00
1.00
1.00
1.00
1.00
1.00
1.00
1.00
1.00
1.00
1.00
5.0
2.0
1.0
1.0
1.0
1.0
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
8.4
9.1
9.9
10.6
11.5
12.2
12.9
13.7
14.4
15.2
16.7
18.2
19.0
20.6
21.2
22.8
25.1
27.4
29.7
STAD-JUN.23.2004
PAGE . 2
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
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