3 Watt DO-41 Surmetic 30 Zener Voltage Regulators

MZP4729A Series
3 Watt DO-41 Surmetict
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 silicon-oxide passivated junctions. All this in an axial-lead,
transfer-molded plastic package that offers protection in all common
environmental conditions.
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Cathode
Specification Features:
Anode
•Zener Voltage Range - 3.6 V to 30 V
•ESD Rating of Class 3 (>16 KV) per Human Body Model
•Surge Rating of 98 Watt @ 1 ms
•Maximum Limits Guaranteed on up to Six Electrical Parameters
•Package No Larger than the Conventional 1 Watt Package
•These are Pb-Free Devices*
Mechanical Characteristics:
AXIAL LEAD
CASE 59
PLASTIC
CASE: Void free, transfer-molded, thermosetting plastic
FINISH: All external surfaces are corrosion resistant and leads are
readily solderable
MAXIMUM LEAD TEMPERATURE FOR SOLDERING PURPOSES:
260°C, 1/16″ from the case for 10 seconds
POLARITY: Cathode indicated by polarity band
MOUNTING POSITION: Any
MARKING DIAGRAM
MAXIMUM RATINGS
Rating
Symbol
Value
Unit
Max. Steady State Power Dissipation
@ TL = 75°C, Lead Length = 3/8″
Derate above 75°C
PD
3
W
24
mW/°C
Steady State Power Dissipation
@ TA = 50°C
Derate above 50°C
PD
1
W
6.67
mW/°C
-65 to +200
°C
Operating and Storage Temperature
Range
TJ, Tstg
Stresses exceeding Maximum Ratings may damage the device. Maximum
Ratings are stress ratings only. Functional operation above the Recommended
Operating Conditions is not implied. Extended exposure to stresses above the
Recommended Operating Conditions may affect device reliability.
A
MZP
47xxA
YYWWG
G
A
MZP47xxA
YY
WW
G
= Assembly Location
= Device Number
= Year
= Work Week
= Pb-Free Package
(Note: Microdot may be in either location)
ORDERING INFORMATION
*For additional information on our Pb-Free strategy and soldering details, please
download the ON Semiconductor Soldering and Mounting Techniques
Reference Manual, SOLDERRM/D.
© Semiconductor Components Industries, LLC, 2007
July, 2007 - Rev. 4
1
Device
Package
Shipping†
MZP47xxARLG
Axial Lead
(Pb-Free)
6000/Tape & Reel
MZP47xxATAG
Axial Lead
(Pb-Free)
4000/Ammo Pack
†For information on tape and reel specifications,
including part orientation and tape sizes, please
refer to our Tape and Reel Packaging Specifications
Brochure, BRD8011/D.
Publication Order Number:
MZP4729A/D
MZP4729A Series
ELECTRICAL CHARACTERISTICS (TA = 25°C unless
I
otherwise noted, VF = 1.5 V Max @ IF = 200 mA for all types)
Symbol
IF
Parameter
VZ
Reverse Zener Voltage @ IZT
IZT
Reverse Current
ZZT
Maximum Zener Impedance @ IZT
IZK
Reverse Current
ZZK
Maximum Zener Impedance @ IZK
IR
Reverse Leakage Current @ VR
VR
Breakdown Voltage
IF
Forward Current
VF
Forward Voltage @ IF
IR
Surge Current @ TA = 25°C
VZ VR
V
IR VF
IZT
Zener Voltage Regulator
ELECTRICAL CHARACTERISTICS (TA = 25°C unless otherwise noted, VF = 1.5 V Max @ IF = 200 mA for all types)
Zener Voltage (Note 2)
Device†
(Note 1)
VZ (Volts)
Zener Impedance (Note 3)
@ IZT
ZZT @ IZT
Leakage Current
ZZK @ IZK
IR @ VR
IR
(Note 4)
Device
Marking
Min
Nom
Max
mA
W
W
mA
mA Max
Volts
mA
MZP4729A, G
MZP4735A, G
MZP4729A
MZP4735A
3.42
5.89
3.6
6.2
3.78
6.51
69
41
10
2
400
700
1
1
100
10
1
3
1260
730
MZP4746A, G
MZP4749A, G
MZP4750A, G
MZP4746A
MZP4749A
MZP4750A
17.10
22.80
25.65
18
24
27
18.90
25.20
28.35
14
10.5
9.5
20
25
35
750
750
750
0.25
0.25
0.25
5
5
5
13.7
18.2
20.6
250
190
170
1. TOLERANCE AND TYPE NUMBER DESIGNATION
The type numbers listed have a standard tolerance on the nominal zener voltage of ±5%.
2. ZENER VOLTAGE (VZ) MEASUREMENT
ON Semiconductor guarantees the zener voltage when measured at 90 seconds while maintaining the lead temperature (TL) at 30°C ±1°C,
3/8″ from the diode body.
3. ZENER IMPEDANCE (ZZ) 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 (IZT or IZK) is superimposed on IZT or IZK.
4. SURGE CURRENT (IR) NON-REPETITIVE
The rating listed in the electrical characteristics table is maximum peak, non-repetitive, reverse surge current of 1/2 square wave or
equivalent sine wave pulse of 1/120 second duration superimposed on the test current, IZT, per JEDEC standards. However, actual device
capability is as described in Figure 3 of the General Data sheet for Surmetic 30s.
†The “G'' suffix indicates Pb-Free package.
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2
MZP4729A Series
PD, MAXIMUM STEADY STATE
POWER DISSIPATION (WATTS)
5
L = LEAD LENGTH
TO HEAT SINK
L = 1/8″
4
L = 3/8″
3
2
L = 1″
1
0
0
20
40
60
80 100 120 140 160
TL, LEAD TEMPERATURE (°C)
180
200
Figure 1. Power Temperature Derating Curve
θJL(t, D) TRANSIENT THERMAL RESISTANCE
JUNCTION‐TO‐LEAD ( °C/W)
30
20
10
7
5
3
2
1
0.7
0.5
D =0.5
0.2
0.1
t2
DUTY CYCLE, D =t1/t2
0.02
0.01
NOTE: BELOW 0.1 SECOND, THERMAL
RESPONSE CURVE IS APPLICABLE
TO ANY LEAD LENGTH (L).
D=0
0.3
0.0001 0.0002
t1
PPK
0.05
0.0005
0.001
0.002
0.005
0.01
0.02
0.05
t, TIME (SECONDS)
0.1
0.2
SINGLE PULSE DTJL = qJL (t)PPK
REPETITIVE PULSES DTJL = qJL (t,D)PPK
0.5
1
2
5
10
Figure 2. Typical Thermal Response L, Lead Length = 3/8 Inch
IR , REVERSE LEAKAGE (μ Adc) @ VR
AS SPECIFIED IN ELEC. CHAR. TABLE
PPK , PEAK SURGE POWER (WATTS)
1K
RECTANGULAR
NONREPETITIVE
WAVEFORM
TJ=25°C PRIOR
TO INITIAL PULSE
500
300
200
100
50
30
20
10
0.1
0.2 0.3 0.5
1
2 3
5
10
PW, PULSE WIDTH (ms)
20 30 50
100
3
2
1
0.5
TA = 125°C
0.2
0.1
0.05
0.02
0.01
0.005
0.002
0.001
0.0005
0.0003
TA = 125°C
1
Figure 3. Maximum Surge Power
2
5
10
20
50 100
NOMINAL VZ (VOLTS)
200
400
Figure 4. Typical Reverse Leakage
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3
1000
MZP4729A Series
APPLICATION NOTE
DTJL 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.
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, TL, should be determined from:
DTJL = qJL PD
For worst‐case design, using expected limits of IZ, limits
of PD and the extremes of TJ (DTJ) may be estimated.
Changes in voltage, VZ, can then be found from:
TL = qLA PD + TA
qLA is the lead‐to‐ambient thermal resistance (°C/W) and
PD is the power dissipation. The value for qLA will vary and
depends on the device mounting method. qLA is generally
30-40°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 TL, the junction temperature
may be determined by:
DV = qVZ DTJ
qVZ, 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.
TJ = TL + DTJL
TEMPERATURE COEFFICIENT RANGES
10
8
6
4
RANGE
2
0
-2
-4
3
4
5
6
7
8
9
10
VZ, ZENER VOLTAGE @ IZT (VOLTS)
11
12
θ VZ, TEMPERATURE COEFFICIENT (mV/ °C) @ I ZT
θ VZ, TEMPERATURE COEFFICIENT (mV/ °C) @ I ZT
(90% of the Units are in the Ranges Indicated)
1000
500
200
100
50
20
10
10
Figure 5. Units to 12 Volts
20
50
100
200
400
VZ, ZENER VOLTAGE @ IZT (VOLTS)
Figure 6. Units 10 to 400 Volts
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4
1000
MZP4729A Series
ZENER VOLTAGE versus ZENER CURRENT
100
50
30
20
50
30
20
IZ , ZENER CURRENT (mA)
100
10
5
3
2
1
0.5
0.3
0.2
0
1
2
3
4
5
6
7
VZ, ZENER VOLTAGE (VOLTS)
8
9
10
5
3
2
1
0.5
0.3
0.2
0.1
10
0
10
20
Figure 7. VZ = 3.3 to 10 Volts
30
40
50
60
70
VZ, ZENER VOLTAGE (VOLTS)
5
2
1
0.5
0.2
0.1
100
150
200
250
300
350
VZ, ZENER VOLTAGE (VOLTS)
400
Figure 9. VZ = 100 to 400 Volts
80
70
60
50
L
40
L
30
TL
20
PRIMARY PATH OF
CONDUCTION IS THROUGH
THE CATHODE LEAD
10
0
0
1/8
80
Figure 8. VZ = 12 to 82 Volts
10
IZ , ZENER CURRENT (mA)
0.1
θJL, JUNCTION‐TO‐LEAD THERMAL RESISTANCE (° C/W)
IZ, ZENER CURRENT (mA)
(Figures 7, 8 and 9)
1/4
3/8
1/2
5/8
3/4
L, LEAD LENGTH TO HEAT SINK (INCH)
7/8
Figure 10. Typical Thermal Resistance
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5
1
90
100
MZP4729A Series
PACKAGE DIMENSIONS
AXIAL LEAD
CASE 59-10
ISSUE U
B
K
NOTES:
1. DIMENSIONING AND TOLERANCING PER ANSI
Y14.5M, 1982.
2. CONTROLLING DIMENSION: INCH.
3. ALL RULES AND NOTES ASSOCIATED WITH
JEDEC DO-41 OUTLINE SHALL APPLY
4. POLARITY DENOTED BY CATHODE BAND.
5. LEAD DIAMETER NOT CONTROLLED WITHIN F
DIMENSION.
D
F
A
POLARITY INDICATOR
OPTIONAL AS NEEDED
(SEE STYLES)
DIM
A
B
D
F
K
F
K
INCHES
MIN
MAX
0.161 0.205
0.079 0.106
0.028 0.034
--- 0.050
1.000
---
MILLIMETERS
MIN
MAX
4.10
5.20
2.00
2.70
0.71
0.86
--1.27
25.40
---
SURMETIC is a trademark of Semiconductor Components Industries, LLC (SCILLC).
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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MZP4729A/D
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