Semiconductor Components Industries, LLC, 2002
June, 2002 Rev. 3
1
Publication Order Number:
3EZ4.3D5/D
3EZ4.3D5 Series
3 Watt DO-41 SurmeticE 30
Zener Voltage Regulators
This is a complete series of 3 Watt Zener diodes with limits and
excellent operating characteristics that reflect the superior capabilities
of siliconoxide passivated junctions. All this in an axiallead,
transfermolded plastic package that offers protection in all common
environmental conditions.
Specification Features:
Zener Voltage Range 4.3 V to 330 V
ESD Rating of Class 3 (>16 KV) per Human Body Model
Surge Rating of 98 W @ 1 ms
Maximum Limits Guaranteed on up to Six Electrical Parameters
Package No Larger than the Conventional 1 Watt Package
Mechanical Characteristics:
CASE:
Void free, transfermolded, thermosetting plastic
FINISH:
All external surfaces are corrosion resistant and leads are
readily solderable
MAXIMUM LEAD TEMPERATURE FOR SOLDERING PURPOSES:
230
C, 1/16
from the case for 10 seconds
POLARITY:
Cathode indicated by polarity band
MOUNTING POSITION:
Any
MAXIMUM RATINGS
Rating
Symbol
Value
Unit
Max. Steady State Power Dissipation
@ T
L
= 75
C, Lead Length = 3/8
Derate above 75
C
P
D
3
24
W
mW/
C
Steady State Power Dissipation
@ T
A
= 50
C
Derate above 50
C
P
D
1
6.67
W
mW/
C
Operating and Storage
Temperature Range
T
J
, T
stg
65 to
+200
C
Device
Package
Shipping
ORDERING INFORMATION
3EZxxxD5
Axial Lead
2000 Units/Box
3EZxxxD5RL*
Axial Lead
AXIAL LEAD
CASE 59
PLASTIC
6000/Tape & Reel
Cathode
Anode
Polarity band up with cathode lead off first
}
Polarity band down with cathode lead off first
L
3EZx
xxD5
YYWW
L
= Assembly Location
3EZxxxD5 = Device Code
=
(See Table Next Page)
YY
= Year
WW
= Work Week
MARKING DIAGRAM
3EZxxxD5RR1
{
Axial Lead
2000/Tape & Reel
3EZxxxD5RR2
}
Axial Lead
2000/Tape & Reel
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*3EZ8.2D5 and 3EZ220D5 Not Available in
6000/Tape & Reel
Zener Voltage Regulator
I
F
V
I
I
R
I
ZT
V
R
V
Z
V
F
3EZ4.3D5 Series
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2
ELECTRICAL CHARACTERISTICS
(T
A
= 25
C unless
otherwise noted, V
F
= 1.5 V Max @ I
F
= 200 mA for all types)
Symbol
Parameter
V
Z
Reverse Zener Voltage @ I
ZT
I
ZT
Reverse Current
Z
ZT
Maximum Zener Impedance @ I
ZT
I
ZK
Reverse Current
Z
ZK
Maximum Zener Impedance @ I
ZK
I
R
Reverse Leakage Current @ V
R
V
R
Breakdown Voltage
I
F
Forward Current
V
F
Forward Voltage @ I
F
I
ZM
Maximum DC Zener Current
I
R
Surge Current @ T
A
= 25
C
3EZ4.3D5 Series
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3
ELECTRICAL CHARACTERISTICS
(T
A
= 25
C unless otherwise noted, V
F
= 1.5 V Max @ I
F
= 200 mA for all types)
Zener Voltage (Note 2)
Zener Impedance (Note 3)
Leakage Current
I
R
Device
Device
V
Z
(Volts)
@ I
ZT
Z
ZT
@ I
ZT
Z
ZK
@ I
ZK
I
R
@ V
R
I
ZM
I
R
(Note 4)
Device
(Note 1)
Device
Marking
Min
Nom
Max
mA
W
W
mA
m
A Max
Volts
mA
mA
3EZ4.3D5
3EZ4.3D5
4.09
4.3
4.52
174
4.5
400
1
30
1
590
4.1
3EZ6.2D5
3EZ6.2D5
5.89
6.2
6.51
121
1.5
700
1
5
3
435
3.1
3EZ8.2D5*
3EZ8.2D5*
7.79
8.2
8.61
91
2.3
700
0.5
5
6
330
2.44
3EZ10D5
3EZ10D5
9.50
10
10.5
75
3.5
700
0.25
3
7.6
270
2.0
3EZ13D5
3EZ13D5
12.35
13
13.65
58
4.5
700
0.25
0.5
9.9
208
1.54
3EZ15D5
3EZ15D5
14.25
15
15.75
50
5.5
700
0.25
0.5
11.4
180
1.33
3EZ16D5
3EZ16D5
15.2
16
16.8
47
5.5
700
0.25
0.5
12.2
169
1.25
3EZ18D5
3EZ18D5
17.1
18
18.9
42
6.0
750
0.25
0.5
13.7
150
1.11
3EZ24D5
3EZ24D5
22.8
24
25.2
31
9.0
750
0.25
0.5
18.2
112
0.83
3EZ36D5
3EZ36D5
34.2
36
37.8
21
22
1000
0.25
0.5
27.4
75
0.56
3EZ39D5
3EZ39D5
37.05
39
40.95
19
28
1000
0.25
0.5
29.7
69
0.51
3EZ220D5*
3EZ220D5*
209
220
231
3.4
1600
9000
0.25
1
167
12
0.09
3EZ240D5
3EZ240D5
228
240
252
3.1
1700
9000
0.25
1
182
11
0.09
3EZ330D5
3EZ330D5
313.5
330
346.5
2.3
2200
9000
0.25
1
251
8
0.06
1. TOLERANCE AND TYPE NUMBER DESIGNATION
Tolerance designation device tolerance of
5% are indicated by a "5" suffix.
2. ZENER VOLTAGE (V
Z
) MEASUREMENT
ON Semiconductor guarantees the zener voltage when measured at 40 ms
10 ms, 3/8
from the diode body. And an ambient temperature
of 25
C (+8
C, 2
C)
3. ZENER IMPEDANCE (Z
Z
) DERIVATION
The zener impedance is derived from 60 seconds AC voltage, which results when an AC current having an rms value equal to 10% of the
DC zener current (I
ZT
or I
ZK
) is superimposed on I
ZT
or I
ZK
.
4. SURGE CURRENT (I
R
) NONREPETITIVE
The rating listed in the electrical characteristics table is maximum peak, nonrepetitive, reverse surge current of 1/2 square wave or
equivalent sine wave pulse of 1/120 second duration superimposed on the test current, I
ZT
, per JEDEC standards. However, actual device
capability is as described in Figure 3 of the General Data sheet for Surmetic 30s.
*Not Available in the 6000/Tape & Reel.
Figure 1. Power Temperature Derating Curve
T
L
, LEAD TEMPERATURE (
C)
0
20
40
60
200
80
100
120 140 160 180
0
1
2
3
4
5
L = 1/8
L = 3/8
L = 1
L = LEAD LENGTH
TO HEAT SINK
P
D
, STEADY ST
A
TE POWER
DISSIP
A
TION (W
A
TTS)
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4
t, TIME (SECONDS)
0.0001 0.0002
0.0005
0.001
0.002
0.005
0.01
0.02
0.05
0.1
0.2
0.5
1
2
5
10
0.3
0.5
0.7
1
2
3
5
7
10
20
30
D =0.5
0.2
0.1
0.05
0.01
D = 0
DUTY CYCLE, D =t
1
/t
2
JL
(t, D)
TRANSIENT
THERMAL
RESIST
ANCE
JUNCTIONT
OLEAD ( C/W)
P
PK
t
1
NOTE: BELOW 0.1 SECOND, THERMAL
RESPONSE CURVE IS APPLICABLE
TO ANY LEAD LENGTH (L).
SINGLE PULSE DT
JL
= q
JL
(t)P
PK
REPETITIVE PULSES DT
JL
= q
JL
(t,D)P
PK
t
2
0.02
10
20
30
50
100
200
300
500
1K
0.1
0.2 0.3 0.5
1
2 3
5
10
20 30 50 100
PW, PULSE WIDTH (ms)
P
, PEAK SURGE POWER (W
A
TTS)
PK
1
2
5
10
20
50
100 200 400 1000
0.0003
0.0005
0.001
0.002
0.005
0.01
0.02
0.05
0.1
0.2
0.5
1
2
3
T
A
= 125
C
T
A
= 125
C
NOMINAL V
Z
(VOLTS)
AS SPECIFIED IN ELEC. CHAR.
T
ABLE
Figure 2. Typical Thermal Response L, Lead Length = 3/8 Inch
Figure 3. Maximum Surge Power
Figure 4. Typical Reverse Leakage
I R
, REVERSE LEAKAGE (
Adc) @ V
R
RECTANGULAR
NONREPETITIVE
WAVEFORM
T
J
= 25
C PRIOR
TO INITIAL PULSE
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5
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
=
q
LA
P
D
+ T
A
q
LA
is the lead-to-ambient thermal resistance (
C/W) and
P
D
is the power dissipation. The value for
q
LA
will vary and
depends on the device mounting method.
q
LA
is generally
3040
C/W for the various clips and tie points in common
use and for printed circuit board wiring.
The temperature of the lead can also be measured using a
thermocouple placed on the lead as close as possible to the
tie point. The thermal mass connected to the tie point is
normally large enough so that it will not significantly
respond to heat surges generated in the diode as a result of
pulsed operation once steady-state conditions are achieved.
Using the measured value of T
L
, the junction temperature
may be determined by:
T
J
= T
L
+
D
T
JL
DT
JL
is the increase in junction temperature above the lead
temperature and may be found from Figure 2 for a train of
power pulses (L = 3/8 inch) or from Figure 10 for dc power.
D
T
JL
=
q
JL
P
D
For worst-case design, using expected limits of I
Z
, limits
of P
D
and the extremes of T
J
(
DT
J
) may be estimated.
Changes in voltage, V
Z
, can then be found from:
D
V =
q
VZ
D
T
J
q
VZ
, the zener voltage temperature coefficient, is found
from Figures 5 and 6.
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.
Data of Figure 2 should not be used to compute surge
capability. Surge limitations are given in Figure 3. 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 3 be exceeded.
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6
Figure 5. Units To 12 Volts
Figure 6. Units 10 To 400 Volts
Figure 7. V
Z
= 3.3 thru 10 Volts
Figure 8. V
Z
= 12 thru 82 Volts
Figure 9. V
Z
= 100 thru 400 Volts
Figure 10. Typical Thermal Resistance
ZENER VOLTAGE versus ZENER CURRENT
(Figures 7, 8 and 9)
TEMPERATURE COEFFICIENT RANGES
(90% of the Units are in the Ranges Indicated)
V
Z
, ZENER VOLTAGE @ I
ZT
(VOLTS)
3
4
5
6
7
8
9
10
11
12
10
8
6
4
2
0
-2
-4
RANGE
,
TEMPERA
TURE COEFFICIENT
(mV/ C) @ I
ZT
VZ
1000
500
200
100
50
20
10
10
20
50
100
200
400
1000
V
Z
, ZENER VOLTAGE @ I
ZT
(VOLTS)
,
TEMPERA
TURE COEFFICIENT
(mV/ C) @ I
ZT
VZ
0
1
2
3
4
5
6
7
8
9
10
100
50
30
20
10
1
0.5
0.3
0.2
0.1
V
Z
, ZENER VOLTAGE (VOLTS)
I , ZENER CURRENT
(mA)
Z
2
5
3
0
10
20
30
40
50
60
70
80
90
100
V
Z
, ZENER VOLTAGE (VOLTS)
I , ZENER CURRENT
(mA)
Z
100
50
30
20
10
1
0.5
0.3
0.2
0.1
2
5
3
100
200
300
400
250
350
150
10
1
0.5
0.2
0.1
V
Z
, ZENER VOLTAGE (VOLTS)
2
5
I , ZENER CURRENT
(mA)
Z
0
10
20
30
40
50
60
70
80
L, LEAD LENGTH TO HEAT SINK (INCH)
PRIMARY PATH OF
CONDUCTION IS THROUGH
THE CATHODE LEAD
0
1/8
1/4
3/8
1/2
5/8
3/4
7/8
1
T
L
JL
, JUNCTIONT
OLEAD
THERMAL
RESIST
ANCE
L
L
( C/W)
3EZ4.3D5 Series
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7
OUTLINE DIMENSIONS
3 Watt DO41 Surmetic
E
30
Zener Voltage Regulators Axial Leaded
PLASTIC DO41
CASE 5910
ISSUE S
B
D
K
K
F
F
A
DIM
MIN
MAX
MIN
MAX
MILLIMETERS
INCHES
A
4.10
5.20
0.161
0.205
B
2.00
2.70
0.079
0.106
D
0.71
0.86
0.028
0.034
F
---
1.27
---
0.050
K
25.40
---
1.000
---
NOTES:
1. DIMENSIONING AND TOLERANCING PER ANSI
Y14.5M, 1982.
2. CONTROLLING DIMENSION: INCH.
3. 59-04 OBSOLETE, NEW STANDARD 59-09.
4. 59-03 OBSOLETE, NEW STANDARD 59-10.
5. ALL RULES AND NOTES ASSOCIATED WITH
JEDEC DO-41 OUTLINE SHALL APPLY
6. POLARITY DENOTED BY CATHODE BAND.
7. LEAD DIAMETER NOT CONTROLLED WITHIN F
DIMENSION.
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8
ON Semiconductor and are registered trademarks of Semiconductor Components Industries, LLC (SCILLC). SCILLC reserves the right to make
changes without further notice to any products herein. SCILLC makes no warranty, representation or guarantee regarding the suitability of its products for any
particular purpose, nor does SCILLC assume any liability arising out of the application or use of any product or circuit, and specifically disclaims any and all
liability, including without limitation special, consequential or incidental damages. "Typical" parameters which may be provided in SCILLC data sheets and/or
specifications can and do vary in different applications and actual performance may vary over time. All operating parameters, including "Typicals" must be
validated for each customer application by customer's technical experts. SCILLC does not convey any license under its patent rights nor the rights of others.
SCILLC products are not designed, intended, or authorized for use as components in systems intended for surgical implant into the body, or other applications
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arising out of, directly or indirectly, any claim of personal injury or death associated with such unintended or unauthorized use, even if such claim alleges that
SCILLC was negligent regarding the design or manufacture of the part. SCILLC is an Equal Opportunity/Affirmative Action Employer.
PUBLICATION ORDERING INFORMATION
JAPAN: ON Semiconductor, Japan Customer Focus Center
4321 NishiGotanda, Shinagawaku, Tokyo, Japan 1410031
Phone: 81357402700
Email: r14525@onsemi.com
ON Semiconductor Website: http://onsemi.com
For additional information, please contact your local
Sales Representative.
3EZ4.3D5/D
Surmetic is a trademark of Semiconductor Components Industries, LLC.
Literature Fulfillment:
Literature Distribution Center for ON Semiconductor
P.O. Box 5163, Denver, Colorado 80217 USA
Phone: 3036752175 or 8003443860 Toll Free USA/Canada
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