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INS333
thru
INS388
® MOTOROLA
Dp!-'ii~T1PI'!-'i Data S h p p t
S.O WATT SURMETIC 40 SILICON ZENER DIODES
(SILICON OXIDE PASSIVATED)
· ...... a complete series of 5.0 Watt Zener Diodes with tight
limits and better operating characteristics that reflect the
superior capabilities of sllicon·oxide·passivated junctions. All
this in an axial·lead, transfer·molded plastic package offering
protection in all common environmental conditions.
• Up to 180 Watt Surge Rating @ 8.3 ms
• Maximum Limits Guaranteed on Seven Electrical Parameters
MAXIMUM RATINGS
II
Junction and Storage Temperature: -65 to + 200·C
Lead Temperature not less than 1/16" from the case for 10 seconds:
230·C
DC Power Dissipation: 5.0 W @ TL=75·C. Lead Length =3/8"
(Derate 40 mW/·C above 75 ·C)
MECHANICAL CHARACTERISTICS
CASE: Void-free. transfer-molded, thermosetting plastic
FINISH: All external surfaces are corrosion resistant. Leads are
readily solderable
POLARITY: Cathode indicated by color band. When operated in zener
mode, cathode will be positive with respect to anode.
MOUNTING POSITION: Any
WEIGHT: 0.7 gram (approx)
FIGURE 1 - POWER·TEMPERATURE DERATING CURVE
B.O~
, I"-~....
,~6.0
"""z
0
:;::
i:j
'" "~ 4.0 .............
r--.. "" "",;~e
~=ljB"
"-
L=3/~~ f'....
...............
I~
L = LEAD LENGTH
TO HEAT SINK
lSe. Figure 51 -
r--. """'":::> L=1·:---......
'" ,""",x
~ 2.0
~
0
--I----.
........
:----.
-~.......:
~
0 20 40 60 BO 100 120 140 160 lBO 200
fl. LEAD TEMPERATURE lOCI
SM3.3ZS10 thru SM200ZS10
1NS333A thru 1NS388A
SM3.3ZSS thru SM200ZS5
1N5333B thru 1N5388B
5.0 WATT
ZENER REGULATOR DIODES
3.3 - 200 VOLTS
-i8BL
~~=1
~'4i
rt~~
LK
~ STYPLINE 11.: ANODE
2. CATHODE
MILLIMETERS
DIM MIN MAX
A B.38 8.89
B 3.30 3.68
0 0.94 1.09
F 1.27
K 25.40 31.75
INCHES
MIN MAX
0.330 0.350
0.130 0.145
0.037 0.043
- 10.050
1.000 1.250
CASE 17
NOTE:
1: LEAD DIAMETER & FINISH NOT
CONTROLLED WITHIN DIM "F".
4-66

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1N5333 thru 1N5388
ELECTRICAL CHARACTERISTICS (TA =25°C unless otherwise noted, VF = 1.2 Max @ IF = 1.0 A for all types)
Max Zener Impedance
NomInal Ta.'
A " B SUlfI_ Only
JEDEC Zenor CUmlnl
Type No. Voltage Izr Zzr @ Izr ZZK @ IZK = 1.0 mA
(Note 1 "2) VZ@ Izr mA Ohms
Ohms
Volts
(Note 3)
(Note 3)
(Note 3)
lN5333
lN5334
lN5335
lN5336
lN5337
lN5338
lN5339
lN5340
lN5341
lN5342
lN5343
lN5344
lN5345
1N5346
lN5347
IN534B
lN5349
lN53SO
lN5351
lN5352
lN5353
lN5354
lN5355
lN5356
lN5357
lN5358
lN5359
lN5360
lN5361
lN5362
lN5363
lN5364
lN5365
lN5366
lN5367
lN5368
lN5369
lN5370
lN5371
lN5372
lN5373
lN5374
lN5375
lN5376
lN5377
lN5378
lN5379
lN5380
lN5361
lN5382
lN5383
lN5384
lN5385
lN53B6
lN5367
lN536B
3.3
3.6
3.9
4.3
4.7
5.1
5.6
6.0
6.2
6.8
7.5
8.2
8.7
9.1
10
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
sa
75
B2
87
91
100
110
120
130
140
ISO
160
170
180
190
200
3BO
350
320
290
260
240
220
200
200
175
175
150
ISO
ISO
125
125
100
100
100
75
75
70
85
65
65
50
SO
SO
50
50
40
40
30
30
30
25
25
20
20
20
20
20
15
15
15
12
12
10
10
8.0
8.0
B.O
B.O
5.0
5.0
5.0
3.0
2.5
2.0
2.0
2.0
1.5
1.0
1.0
1.0
1.0
1.5
1.5
2.0
2.0
2.0
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
11
14
20
25
27
35
40
42
44
45
65
75
75
90
125
170
190
230
330
350
380
430
450
480
400
SOD
500
500
450
400
400
300
200
200
200
200
200
150
125
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
MIIJI _ e Lookage
CUmin!
IR
"A
300
150
SO
10
5.0
1.0
1.0
1.0
1.0
10
10
10
10
7.5
5.0
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
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
@
Non IA
SUIII_
1.0
1.0
1.0
1.0
1.0
1.0
2.0
3.0
3.0
4.9
5.4
5.9
6.3
6.6
7.2
8.0
8.6
9.4
10.1
10.B
11.5
12.2
13.0
13.7
14.4
15.8
17.3
lB.O
19.4
20.1
21.6
23.8
25.9
28.1
31.0
33.B
36.7
40.3
43.0
44.8
49.0
54.0
59.0
63.0
65.5
72.0
79.2
86.4
93.6
101
106
115
122
130
137
144
VR
Volts
B-SulfI_
1.0
1.0
1.0
1.0
1.0
1.0
2.0
3.0
3.0
5.2
5.7
6.2
6.6
6.9
7.6
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.B
25.1
27.4
29.7
'32.7
35.8
38.8
42.6
45.5
47.1
51.7
56.0
62.2
66.0
69.2
76.0
B3.6
91.2
98.8
106
114
122
129
137
144
152
Applle.
loa"
SUlfI_
Ma_
Surge
CUmlnl
I"Amps
(Nota 4)
20.0
18.7
17.6
16.4
15.3
14.4
13.4
12.7
12.4
11.5
10.7
10.0
9.5
9.2
8.6
B.O
7.5
7.0
6.7
6.3
6.0
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
2.0
1.9
1.8
1.7
1.6
1.5
1.4
1.3
1.2
1.2
1.1
1.1
1.0
1.0
0.9
0.9
A"B
SUlfI_
Only
Max
VoIlage
Ragulallon
!J. Yz, Volts
(Nota 5)
0.B5
0.80
0.54
0.49
0.44
0.39
0.25
0.19
0.10
0.15
0.15
0.20
0.20
0.22
0.22
0.25
0.25
0.25
0.25
0.25
0.30
0.35
0.40
0.40
0.40
0.45
0.55
0.55
0.80
0.80
0.60
0.80
0.65
0.65
0.70
0.80
0.90
1.00
1.20
1.35
1.50
1.60
1.80
2.00
2.20
2.50
2.50
2.50
2.SO
2.50
3.00
3.00
3.00
4.00
5.00
5.00
Maximum
Regulator
Current
IZM
mA
(Nota 6)
1440
1320
1220
1100
1010
930
865
790
765
700
630
580
545
520
475
430
395
365
340
315
295
280
264
250
237
216
198
190
176
170
158
144
132
122
110
100
93.0
B6.0
79.0
76.0
70.0
63.0
56.0
54.5
52.5
47.5
43.0
39.5
38.6
34.0
31.6
29.4
2B.0
26.4
25.0
23.6
II
4·67

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1N5333 thru 1N5388
a
NOTE 1 - TOLERANCE AND VOLTAGE DESIGNATION
TOLERANCE DESIGNATION - The JEOEC type numbers shown
indicat. a tolerance of ±20% with guaranteed limits on only VZ, IR,
ir• and VF as shown in the electrical characteristics table. Units
with guaranteed limits on all seven parameters are indicated by
suffix "A" for ±10% tolerance and suffix "B" for ±5.0% units.
NOTE 2 - SPECIALS AVAILABLE INCLUDE:
IA) NOMINAL ZENER VOLTAGES BETWEEN THE VOLT·
AGES SHOWN AND TIGHTE R VOLTAGE TO LE RANCES:
To designate units with zener voltages other than those
assigned jEDEC numbers and/or tight voltage tolerances
1±3%, ±2%, ± 1%), the MfWI.. type number should be used.
5 M 90
.JDevice
No~nal
TDescription
Voltage
Manufacturer
Z
T
Zener
Diode
Example:
5M90ZS3
TS 3
L Tolerance
I±%)
"Surmetic"
IB) MATCHED SETS: IStandard Tolerances are ±5.O%, ±2.O%,
±1.0%1.
Zener diodes can be obtained in sets consisting of two or more
matched devices. The method for specifying such matched
sets is similar to the one described in (A) for specifying units
with a special voltage and/or tolerance except that two extra
suffixes are added to the code number described.
These units are marked with code letters to identify the
matched sets and, in addition, each unit in a set is marked
with the same serial number, which is different for each set
being ordered.
5 M 51 Z S
5
D~ce T T T lDescription lea5ch1d1e:v,ic.e) "Surmetic"
B1
l o vTIorlae rlaln c e
·C d' Manufacturer
o e.
Zener
D' d Tolerance
10 es per device 1±5%)
oI±f 1s%et)
B - Two devices in series (omit for .z.20% units) Code*
C - Three devices in series
(A-Not used)
0- Four devices in series
Example:
5M51ZS5B1
IC) ZENER CLIPPERS: IStandardTolerance±10%and±5%1.
Special clipper diodes with opposing Zener junctions built
into the device are available by using the following nomen-
clature:
5
DJce
TM 20,
N:I:al
Description
Voltage
Manufacturer
ZZ
10
T
T Tolerance for each of
cliLr the two Zener voltages
Zener
(not a matching require-
Diodes
ment)
Example:
5M20ZZ10
NOTE 3 - ZENER VOLTAGE (VZ) AND IMPEDANCE
(ZZT&ZZK)
Test conditions for Zener voltage and impedance are as follows:
IZ is applied 40 ± 10 ms prior to reading. Mounting contacts are
located 3/8" to 1/2" from the inside edge of mounting clips to
the body of the diode. ITA =250 C ~~ °CI.
NOTE 4 - SURGE CURRENT lir )
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 6 may be used to find the maximum
surge current for a square WfNe of any pulse width between 1.0
ms and 1000 ms by plotting the applicable points on logarithm ic
paper. Examples of this, using the 3.3 V and 200 V zeners, are
shown in Figure 7. Mounting contact located as soecified in
Note 3. ITA = 250 C ~~oC).
NOTE 5 - VOLTAGE REGULATION (L:>VZ)
Test conditions for voltage regulation are as follows: Vz meas-
urements 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 dur~tion for each Vz measurement is 40 ± 10 ms. (TA ==
25°C ~~ CI. Mounting contact located as specified in Note 3.
NOTE 6 - MAXIMUM REGULATOR CURRENT (lZM)
The maximum current shown is based on the maximum voltage
of a 5% type unit, therefore, it applies only to Jhe B-suffix
device. The actual IZM for any device may not exceed the
value of 5.0 watts divided by the actual Vz of the device.
T L == 75°C at 3/8" maximum from the device body.
TEMPERATURE COEFFICIENTS
FIGURE 2 - TEMPERATURE COEFFICIENT-RANGE
FOR UNITS 3.0 TO 10 VOLTS
10
I::-;
C3 8.0
u:
~ ;s.o
~ !. 4.0
,",",
~ ~ 2.0
~-
'~"
/
./
./ ./
~ -2.0 r-.-/- ./
3.0 4.0 5.0 6.0
-.....- .J--
..- T
RANGE
7.0 8.0
...-
9.0 10
VZ, ZENER VOLTAGE@IZT(VOLTS)
FIGURE 3 - TEMPERATURE COEFFICIENT-RANGE
FOR UNITS 10 TO 220 VOLTS
I- 300
i:5 200
U
~ 100
01-
~~50
~r;;30
;2 ~ 20
~-
~0
N
~ 5.0
IL
-r 1+
RANGE ~
20 40 60 80 100 120 140 160 180 200 220
Vz. ZENER VOLTAGE@ IZT (VOLTS)
4-68

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1N5333 thru 1N5388
0
D - 0.5
0
5.0 D = 0.2
D = 0.1
2.0
D - 0.0
0
0-0.01
o.5
O.2:='0-0
0.001
FIGURE 4 - TYPICAL THERMAL RESPONSE
L, LEAD LENGTH = 3/8 INCH
....
kI
NOTE: Below 0.1 Second.Thermal
Response CUNe is Applicable
to any lead length (L).
r---G--rL
PPK --t'1 I-- I
DUTY CYCLE, D - '1/'2:
II
_ SINGLE PULSE "'TJL = 6JL(t)PPK
1--'2---1
~E~ETI!I~E t~Lm"'TJ~ = 6iL(~. D)PPIK
0.005 0.01
0.05 0.1
0.5 1.0
" TIME (SECONDS)
5.0 10
20
50 100
FIGURE 5 - TYPICAL THERMAL RESISTANCE
0
0
0V
. /. /
.-/"
V
./'
./
V
./V
~,=
-
-
PRIMARY PATH OF
CONOUCTION IS THROUGH
-
THE CATHODE LEAD
0.2 0.4 0.6 0.8
L. LEAD LENGTH TO HEAT SINK (INCH)
1.0
APPLICATION NOTE
Since the actual voltage available from a given zener diode is
temperature dependent, it is necessary to determine junction temp-
erature under any set of operating conditions, in order to calculate its
value. The following procedure is recommended:
Lead Temperature, TL. should be determined from:
h=9LA PO+TA
8LA is the lead-ta-ambient thermal resistance and Po is the
power dissipation.
Junction Temperature. TJ. may be found from:
TJ = TL +6TJL
6.TJL is the increase in junction temperature above the lead
temperature and may be found from Figure 4 for a train of
power pulses or from Figure 5 for dc power.
nTJL = 9JL Po
For worst-case design, using expected limits of IZ, limits of Po
and the extremes of T J(nTJI may be estimated. Change. in voltage,
VZ, can then be found from:
nV = 9vz nTJ
8vz. the .zener voltage temperature coefficient. is found from
Figures 2 and 3.
Under high power-pulse operation, the zener voltage will vary with
time and may also be affected significantly by the zener resistance.
For best regulation, keep current excursions as low as possible.
FIGURE 6 - MAXIMUM NON-REPETITIVE SURGE
CURRENT versus NOMINAL ZENER VOLTAGE
(See Note 4)
0
i 20
10
....
~ 4.0
:>
~ 2.0
1;1
~ 1.0
r----
'~" 0.4 - f -
.~
0.2
O. 1
- PW-l.Oms
......... r---
......:
---=PW= 8.3 ms'=
"Square Wave. I--
PW= lOOms"
..........
PW-l000ms*- ~
3.0 4.0 6.0 8.0 10
20 30 40 60 80 100
200
NOMINAL Vz (V)
II
FIGURE 7 - PEAK SURGE CURRENT
versus PULSE WIDTH
(See Note 4)
30
20
if 10
".$
.... 5.0
a~ 2.0
w
~ 1.0
i;l
~ 0.5
~-
0.2 -
PLDTTED FRDM INFORMATION
GIVEN IN FIGURE 6
VZ=3.3V
~Z-200V
N4...
0.1
1.0
10 100
PW, PULSE WIDTH (ms)
1000
Data of Figure 4 should not be u~ to compute surge capability.
Surge limitations are given in Figure 6. They are lower than would
be expected by considering only junction temperatu re, as current
crowding effects cause temperatures to be extremely high in small
spots resulting in device degradation should the limits of Figure 6
be exceeded.
4-69