MCC
Features
l
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omponents
21201 Itasca Street Chatsworth
!"#
$
% !"#
SMCJ5348
THRU
SMCJ5388
Silicon
5.0 Watt
Zener Diodes
DO-214AB
(SMCJ) (LEAD FRAME)
G
Surface Mount Application
11 thru 200 Volt Voltage Range
Built-in strain relief
Glass passivated junction
Low inductance
Mechanical Data
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Case: JEDEC DO-214AB Molded plastic
over passivated junction
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Terminals solderable per MIL-STD-750, Method 2026
Standard Packaging: 16mm tape(EIA-481)
Maximum temperature for soldering: 260 C for 10 seconds.
Plastic package has Underwriters Laboratory
Flammability Classification 94V-O
o
H
D
Maximum Ratings @ 25
o
C Unless Otherwise Specified
DC Power
P
D
5.0W
(Note: 1)
Dissipation
Pea k forward
I
FS M
S e e Fig .5 (Note:1,2)
Surge Curren t
8.3ms single half
Operation And
T
J
, T
STG
-55
o
C to
Storage
+150
o
C
Temperature
NOTES:
1. Mounted on 8.0mm copper pads to each terminal.
2. 8.3ms single half sine-wave, or equivalent square wave,
duty cycle = 4 pulses per minute maximum.
2
A
C
E
B
F
DIMENSIONS
INCHES
MIN
.079
.108
.002
.006
.030
..305
.260
.220
MM
MIN
2.00
2.75
0.051
0.152
0.76
7.75
6.60
5.59
DIM
A
B
C
D
E
F
G
H
MAX
.103
.128
.008
.012
.050
.320
.280
.245
MAX
2.62
3.25
0.203
0.305
1.27
8.13
7.11
6.22
NOTE
SUGGESTED SOLDER
PAD LAYOUT
0.185
0.121”
0.060”
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SMCJ5348 thru SMCJ5388
ELECTRICAL CHARACTERISTICS (T
A
=25
¢J
unless otherwise noted, V
F
=1.2 Max @ I
F
=1A for all types.
MCC
Device
Marking
Code
Type No.
(Note 1.)
Nominal
Zener
Voltage
Vz @ I
ZT
volts
(Note 2.)
Test
current
I
ZT
mA
Maximum Zener
Impedance
Z
ZT
@ I
ZT
Ohms
(Note 2.)
Z
Zk
@ I
ZK
= 1
mA
Ohms
(Note 2.)
I
R
Max reverse
Leakage Current
£g
A
Maximum
Max
Max
Regulator
Surge
Voltage
Current
Current Regulation I mA
@ V
R
Volts
ZM
Ir Amps
£G
Vz, Volts
(Note 5.)
Non & A
B-Suffix
(Note 3.) (Note 4.)
Suffix
SMCJ5348
SMCJ5349
SMCJ5350
SMCJ5351
SMCJ5352
SMCJ5353
SMCJ5354
SMCJ5355
SMCJ5356
SMCJ5357
SMCJ5358
SMCJ5359
SMCJ5360
SMCJ5361
SMCJ5362
SMCJ5363
SMCJ5364
SMCJ5365
SMCJ5366
SMCJ5367
SMCJ5368
SMCJ5369
SMCJ5370
SMCJ5371
SMCJ5372
SMCJ5373
SMCJ5374
SMCJ5375
SMCJ5376
SMCJ5377
SMCJ5378
SMCJ5379
SMCJ5380
SMCJ5381
SMCJ5382
SMCJ5383
SMCJ5384
SMCJ5385
SMCJ5386
SMCJ5387
SMCJ5388
11
12
13
14
15
16
17
18
19
20
22
24
25
27
28
30
33
36
39
43
47
51
56
60
62
68
75
82
87
91
100
110
120
130
140
150
160
170
180
190
200
125
100
100
100
75
75
70
65
65
65
50
50
50
50
50
40
40
30
30
30
25
25
20
20
20
20
20
15
15
15
12
12
10
10
8
8
8
8
5
5
5
2.5
2.5
2.5
2.5
2.5
2.5
2.5
2.5
3
3
3.5
3.5
4
5
6
8
10
11
14
20
25
27
35
40
42
44
45
65
75
75
90
125
170
190
230
330
350
380
430
450
480
125
125
100
75
75
75
75
75
75
75
75
100
110
120
130
140
150
160
170
190
210
230
280
350
400
500
620
720
760
760
800
1000
1150
1250
1500
1500
1650
1750
1750
1850
1850
5
2
1
1
1
1
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
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
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
8
8.6
9.4
10.1
10.8
11.5
12.2
13
13.7
14.4
15.8
17.3
18
19.4
20.1
21.6
23.8
25.9
28.1
31
33.8
36.7
40.3
43
44.6
49
54
59
63
65.5
72
79.2
86.4
93.6
101
108
115
122
130
137
144
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
20.6
21.2
22.8
25.1
27.4
29.7
32.7
35.8
38.8
42.6
45.5
47.1
51.7
56
62.2
66
69.2
76
83.6
91.2
98.8
106
114
122
129
137
144
152
8
7.5
7
6.7
6.3
6
5.8
5.5
5.3
5.1
4.7
4.4
4.3
4.1
3.9
3.7
3.5
3.3
3.1
2.8
2.7
2.5
2.3
2.2
2.1
2
1.9
1.8
1.7
1.6
1.5
1.4
1.3
1.2
1.2
1.1
1.1
1
1
0.9
0.9
0.25
0.25
0.25
0.25
0.25
0.3
0.35
0.4
0.4
0.4
0.45
0.55
0.55
0.6
0.6
0.6
0.6
0.65
0.65
0.7
0.8
0.9
1
1.2
1.35
1.5
1.6
1.8
2
2.2
2.5
2.5
2.5
2.5
2.5
3
3
3
4
5
5
430
395
365
340
315
295
280
265
250
237
216
198
190
176
170
158
144
132
122
110
100
93
86
79
76
70
63
58
54.5
52.5
47.5
43
39.5
36.6
34
31.6
29.4
28
26.4
25
23.6
348B
349B
350B
351B
352B
353B
354B
355B
356B
357B
358B
359B
360B
361B
362B
363B
364B
365B
366B
367B
368B
369B
370B
371B
372B
373B
374B
375B
376B
377B
378B
379B
380B
381B
382B
383B
384B
385B
386B
387B
388B
NOTE:
1. TOLERANCE AND VOLTAGE DESIGNATION - The JEDEC type numbers shown indicate a tolerance of
¡Ó
10% with
guaranteed limits on only Vz, I
R
, I
r
, and V
F
as shown in the electrical characteristics table. Units with guaranteed
limits on all seven parameters are indicated by suffix “B” for
¡Ó
5% tolerance.
2. ZENER VOLTAGE (Vz) AND IMPEDANCE (Z
ZT
& Z
ZK
) - Test conditions for Zener voltage and impedance are as
follows; Iz is applied 40
¡Ó
10 ms prior to reading. Mounting contacts are located from the inside edge of mounting
clips to the body of the diode.(T
A
=25
¢J
¡Ð¢±
¢J
).
¡Ï¢·
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SMCJ5348 thru SMCJ5388
MCC
3. SURGE CURRENT (Ir) - Surge current is specified as the maximum allowable peak, non-recurrent square-wave
current with a pulse width, PW, of 8.3 ms. The data given in Figure 5 may be used to find the maximum surge
current for a quare wave of any pulse width between 1 ms and 1000ms by plotting the applicable points on
logarithmic paper. Examples of this, using the 6.8v and 200V zeners, are shown in Figure 6. Mounting
contact located as specified in Note 3. (T
A
=25
¢J
¡Ð¢±
¢J
).
4. VOLTAGE REGULATION (£GVz) - Test conditions for voltage regulation are as follows: Vz measurements are made
at 10% and then at 50% of the Iz max value listed in the electrical characteristics table. The test currents are the
same for the 5% and 10% tolerance devices. The test current time druation for each Vz measurement is 40
¡Ó
10 ms.
(T
A
=25
¢J
¡Ð¢±
¢J
). Mounting contact located as specified in Note2.
5. MAXIMUM REGULATOR CURRENT (I
ZM
) - The maximum current shown is based on the maximum voltage of a
5% type unit. Therefore, it applies only to the B-suffix device. The actual I
ZM
for any device may not exceed the
value of 5 watts divided by the actual Vz of the device. T
L
=75
¢J
at maximum from the device body.
¡Ï¢·
¡Ï¢·
APPLICATION NOTE:
Since the actual voltage available from a given zener
diode is temperature dependent, it is necessary to
determine junction temperature under any set of
operating conditions in order to calculate its value. The
following procedure is recommended:
Lead Temperature, T
L
, should be determined from:
T
L
=
£c
LA
P
D
+ T
A
£c
LA
is the lead-to-ambient thermal resistance (
¢J
/W)
and P
D
is the power dissipation.
Junction Temperature, T
J
, may be found from:
T
J
= T
L
+
£GT
JL
£G
T
JL
is the increase in junction temperature above the
lead temperature and may be found from Figure 3 for
a train of power pulses or from Figure 4 for dc power.
£GT
JL
=
£c
JL
P
D
For worst-case design, using expected limits of Iz, limits
of P
D
and the extremes of T
J
(£GT
J
) may be estimated.
Changes in voltage, Vz, can then be found from:
£GV
=
£c
VZ
£GT
J
£c
VZ
, the zener voltage temperature coefficient, is fount
from Figures 2.
Under high power-pulse operation, the zener voltage will
vary with time and may also be affected significantly be
the zener resistance. For best regulation, keep current
excursions as low as possible.
Data of Figure 3 should not be used to compute surge
capability. Surge limitations are given in Figure 5. They
are lower than would be expected by considering only
junction temperature, as current crowding effects cause
temperatures to be extremely high in small spots resulting
in device degradation should the limits of Figure. 5 be
exceeded.
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SMCJ5348 thru SMCJ5388
RATING AND CHARACTERISTICS CURVES
TEMPERATURE COEFFICIENTS
PD, MAXIUMU POWER DISSIPATION (WATTS)
MCC
£c
VZ, TEMPERATURE
COEFFICIENT (mA/¢J_@IZT
300
200
100
50
30
20
10
5
0
20 40 60
80 100 120 140 160 180 200 220
RANGE
8
6
4
2
0
0
20
40
60
80
100
120
140
160
L = LEAD LENGTH TO
HEAT SINK
(SEE FIGURE 5)
VZ, ZENER VOLTAGE @IZT (VOLTS)
TL, LEAD TEMPERATURE (
¢J
)
Fig. 1-POWER TEMPERATURE DERATING CURVE
Fig. 2-TEMPERATURE COEFFICIENT-RANGE FOR UNITS
6 TO 220 VOLTS
£c
JL(t,D), TRANSIENT THERMAL
RESISTANCE JUNCTION-TO-
LEAD(¢J/W)
30
20
10
7
5
3
2
1
0.7
0.5
0.05
0.02
NOTE BELOW 0.1 SECOND,
THERMAL RESPONSE
CURVE IS APPLICABLE TO
ANY LEAD LENGTH (L)
0.002
0.005
0.01
0.02
0.05
DUTY CYCLE, D = t1 / t2
SINGLE PULSE
£G
TJL =
£K
JL(t)PPK
REPETITIVE PULSES
£G
TJL =
£K
JL(t,D)PPK
0.1
0.2
0.5
1
2
5
10
D = 0.5
0.2
0.1
0.01
0.3
0.0001 0.0002
D=0
0.0005
0.001
TIME (SECONDS)
Fig. 3-TYPICAL THERMAL RESPONSE
JL, JUNCTION-TO -LEAD THERMAL
RESISTANCE (¢J /W)
IR, PEAK SURGE CURRENT (AMPS)
40
20
10
4
2
1
PW = 1000ms*
0.4
0.2
0.1
3
4
6
8 10
20
30 40
60 80 100
200
SINE / SQUARE WAVE PW = 100ms*
PW = 1ms*
PW = 8.3ms*
40
30
20
10
0
0
0.2
0.4
0.6
0.8
1
MCUNTE ON 8.0mm
2
COPPER PADS TO
EACH TERMINAL
L, LEAD LENGTH TO HEAT SINK (INCH)
NOMINAL VZ(V)
Fig. 4-TYPICAL THERMAL RESISTANCE
Fig. 5-MAXIMUM NON-REPETITIVE SURGE
CURRENT VERSUS NOMINAL ZENER
VOLTAGE (SEE NOTE 3)
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SMCJ5348 thru SMCJ5388
RATING AND CHARACTERISTICS CURVES
ZENER VOLTAGE VERSUS ZENER CURRENT
(FIGURES 7,8, AND 9)
30
20
10
5
2
1
0.5
VZ = 200V
0.2
0.1
1
10
100
1000
PLOTTED FROM INFORMATION
GIVEN IN FIGURE 6
MCC
IZ, ZENER CURRENT (mA)
T
C
= 25
¢J
1000
T = 25
¢J
VZ = 6.8V
100
10
1
0.1
1
2
3
4
5
6
7
8
9
10
VZ, ZENER VOLTAGE (VOLTS)
Fig. 6-PEAK SURGE CURRENT VERSUS PULSE
WIDTH(SEE NOTE 3)
1000
T = 25
¢J
100
Fig. 7-ZENER VOLTAGE VERSUS ZENER CURRENT
VZ = 6.8 THRU 10 VOLTS
1000
IZ, ZENER CURRENT (mA)
IZ, ZENER CURRENT (mA)
100
10
10
1
1
0.1
10
50
20
60
30
40
70
80
0.1
80
100
120
140
160
180
200
220
VZ, ZENER VOLTAGE (VOLTS)
VZ, ZENER VOLTAGE (VOLTS)
Fig. 8-ZENER VOLTAGE VERSUS ZENER CURRENT
VZ = 11 THRU 75 VOLTS
Fig. 9-ZENER VOLTAGE VERSUS ZENER CURRENT
VZ = 82 THRU 200 VOLTS
*** Data of Figure 3 should not be used to compute surge capability. Surge limitations are given in Figure 5. They are
lower than would be expected by considering only junction temperature, as current crowding effects cause
temperatures to be extremely high in small spots resulting in device degradation should the limits of Figure. 5 be
exceeded
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