MZP4729A 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 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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Specification Features:
•
•
•
•
•
w
Cathode
Zener Voltage Range − 3.6 V to 30 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
These devices are available in Pb−free package(s). Specifications herein
apply to both standard and Pb−free devices. Please see our website at
www.onsemi.com for specific Pb−free orderable part numbers, or
contact your local ON Semiconductor sales office or representative.
AXIAL LEAD
CASE 59
PLASTIC
Mechanical Characteristics:
CASE: Void free, transfer−molded, thermosetting plastic
FINISH: All external surfaces are corrosion resistant and leads are
MARKING DIAGRAM
readily solderable
L
MZP4
7xxA
YYWW
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
L
= Assembly Location
MZP47xxA = Device Code
= (See Table Next Page)
YY
= Year
WW
= Work Week
MAXIMUM RATINGS
Symbol
Value
Unit
Max. Steady State Power Dissipation
@ TL = 75°C, Lead Length = 3/8″
Derate above 75°C
Rating
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
ORDERING INFORMATION
Device
Package
Shipping
MZP47xxA
Axial Lead
2000 Units/Box
MZP47xxARL
Axial Lead
6000/Tape & Reel
MZP47xxATA
Axial Lead
4000/Ammo Pack
MZP47xxARR1 {
Axial Lead
2000/Tape & Reel
MZP47xxARR2 }
Axial Lead
2000/Tape & Reel
{
}
© Semiconductor Components Industries, LLC, 2006
March, 2006 − Rev. 3
1
Anode
Polarity band up with cathode lead off first
Polarity band down with cathode lead off first
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
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2
MZP4729A Series
ELECTRICAL CHARACTERISTICS (TA = 25°C unless otherwise noted, VF = 1.5 V Max @ IF = 200 mA for all types)
Zener Voltage (Note 2)
VZ (Volts)
Zener Impedance (Note 3)
@ IZT
ZZT @ IZT
Leakage Current
ZZK @ IZK
IR @ VR
IR
(Note 4)
Device
(Note 1)
Device
Marking
Min
Nom
Max
mA
W
W
mA
μA Max
Volts
mA
MZP4729A
MZP4734A
MZP4735A
MZP4736A
MZP4737A
MZP4729A
MZP4734A
MZP4735A
MZP4736A
MZP4737A
3.42
5.32
5.89
6.46
7.13
3.6
5.6
6.2
6.8
7.5
3.78
5.88
6.51
7.14
7.88
69
45
41
37
34
10
5
2
3.5
4
400
600
700
700
700
1
1
1
1
0.5
100
10
10
10
10
1
2
3
4
5
1260
810
730
660
605
MZP4738A
MZP4740A
MZP4741A
MZP4744A
MZP4745A
MZP4738A
MZP4740A
MZP4741A
MZP4744A
MZP4745A
7.79
9.50
10.45
14.25
15.20
8.2
10
11
15
16
8.61
10.50
11.55
15.75
16.80
31
25
23
17
15.5
4.5
7
8
14
16
700
700
700
700
700
0.5
0.25
0.25
0.25
0.25
10
10
5
5
5
6
7.6
8.4
11.4
12.2
550
454
414
304
285
MZP4746A
MZP4749A
MZP4750A
MZP4751A
MZP4752A
MZP4746A
MZP4749A
MZP4750A
MZP4751A
MZP4752A
17.10
22.80
25.65
28.50
31.35
18
24
27
30
33
18.90
25.20
28.35
31.50
34.65
14
10.5
9.5
8.5
7.5
20
25
35
40
45
750
750
750
1000
1000
0.25
0.25
0.25
0.25
0.25
5
5
5
5
5
13.7
18.2
20.6
22.8
25.1
250
190
170
150
135
MZP4753A
MZP4753A
34.20
36
37.80
7.0
50
1000
0.25
5
27.4
125
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.
PD, MAXIMUM STEADY STATE
POWER DISSIPATION (WATTS)
5
L = 1/8″
L = LEAD LENGTH
TO HEAT SINK
4
L = 3/8″
3
2
L = 1″
1
0
0
20
40
60
80 100 120 140 160
TL, LEAD TEMPERATURE (°C)
180
Figure 1. Power Temperature Derating Curve
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3
200
MZP4729A Series
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 ΔTJL = θJL (t)PPK
REPETITIVE PULSES ΔTJL = θJL (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
0.2 0.3 0.5
1
2 3
5
10
PW, PULSE WIDTH (ms)
20 30 50
100
TA = 125°C
0.2
0.1
0.05
0.02
0.01
0.005
0.002
0.001
0.0005
0.0003
20
10
0.1
3
2
1
0.5
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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4
1000
MZP4729A Series
APPLICATION NOTE
ΔTJL 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:
ΔTJL = θJL PD
For worst-case design, using expected limits of IZ, limits
of PD and the extremes of TJ (ΔTJ) may be estimated.
Changes in voltage, VZ, can then be found from:
TL = θLA PD + TA
θLA is the lead-to-ambient thermal resistance (°C/W) and PD
is the power dissipation. The value for θLA will vary and
depends on the device mounting method. θLA 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:
ΔV = θVZ ΔTJ
θVZ, 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 + ΔTJL
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5
MZP4729A Series
TEMPERATURE COEFFICIENT RANGES
10
1000
8
6
4
RANGE
2
0
−2
−4
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)
3
4
5
6
7
8
9
10
VZ, ZENER VOLTAGE @ IZT (VOLTS)
11
12
500
200
100
50
20
10
10
20
50
100
200
400
VZ, ZENER VOLTAGE @ IZT (VOLTS)
Figure 5. Units To 12 Volts
1000
Figure 6. Units 10 To 400 Volts
ZENER VOLTAGE versus ZENER CURRENT
100
100
50
30
20
50
30
20
IZ , ZENER CURRENT (mA)
IZ, ZENER CURRENT (mA)
(Figures 7, 8 and 9)
10
5
3
2
1
0.5
0.3
0.2
0.1
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
10
IZ , ZENER CURRENT (mA)
5
2
1
0.5
0.2
0.1
100
150
200
250
300
350
VZ, ZENER VOLTAGE (VOLTS)
80
90
100
Figure 8. VZ = 12 thru 82 Volts
400
θJL, JUNCTION-TO-LEAD THERMAL RESISTANCE (° C/W)
Figure 7. VZ = 3.3 thru 10 Volts
30
40
50
60
70
VZ, ZENER VOLTAGE (VOLTS)
80
70
60
50
L
40
L
30
TL
20
PRIMARY PATH OF
CONDUCTION IS THROUGH
THE CATHODE LEAD
10
0
0
Figure 9. VZ = 100 thru 400 Volts
1/8
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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6
1
MZP4729A Series
OUTLINE DIMENSIONS
Zener Voltage Regulators − Axial Leaded
3 Watt DO−41 SurmeticE 30
PLASTIC DO−41
CASE 59−10
ISSUE R
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.
B
K
D
F
DIM
A
B
D
F
K
A
F
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
−−−
K
Surmetic is a trademark of Semiconductor Components Industries, LLC.
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
intended to support or sustain life, or for any other application in which the failure of the SCILLC product could create a situation where personal injury or death may occur. Should
Buyer purchase or use SCILLC products for any such unintended or unauthorized application, Buyer shall indemnify and hold SCILLC and its officers, employees, subsidiaries, affiliates,
and distributors harmless against all claims, costs, damages, and expenses, and reasonable attorney fees 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. This literature is subject to all applicable copyright laws and is not for resale in any manner.
PUBLICATION ORDERING INFORMATION
LITERATURE FULFILLMENT:
Literature Distribution Center for ON Semiconductor
P.O. Box 61312, Phoenix, Arizona 85082−1312 USA
Phone: 480−829−7710 or 800−344−3860 Toll Free USA/Canada
Fax: 480−829−7709 or 800−344−3867 Toll Free USA/Canada
Email: [email protected]
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Japan: ON Semiconductor, Japan Customer Focus Center
2−9−1 Kamimeguro, Meguro−ku, Tokyo, Japan 153−0051
Phone: 81−3−5773−3850
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7
ON Semiconductor Website: http://onsemi.com
Order Literature: http://www.onsemi.com/litorder
For additional information, please contact your
local Sales Representative.
MZP4729A/D