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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.
Specification Features:
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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
Cathode
Anode
Mechanical Characteristics: 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:
AXIAL LEAD CASE 59 PLASTIC
230C, 1/16 from the case for 10 seconds POLARITY: Cathode indicated by polarity band MOUNTING POSITION: Any
MAXIMUM RATINGS
Rating Max. Steady State Power Dissipation @ TL = 75C, Lead Length = 3/8 Derate above 75C Steady State Power Dissipation @ TA = 50C Derate above 50C Operating and Storage Temperature Range Symbol PD Value 3 24 PD 1 6.67 TJ, Tstg -65 to +200 Unit W mW/C W mW/C C
MARKING DIAGRAM
L MZP4 7xxA YYWW
L = Assembly Location MZP47xxA = Device Code = (See Table Next Page) YY = Year WW = Work Week
ORDERING INFORMATION
Device MZP47xxA MZP47xxARL MZP47xxATA MZP47xxARR1 { MZP47xxARR2 }
{ }
Package Axial Lead Axial Lead Axial Lead Axial Lead Axial Lead
Shipping 2000 Units/Box 6000/Tape & Reel 4000/Ammo Pack 2000/Tape & Reel 2000/Tape & Reel
Polarity band up with cathode lead off first Polarity band down with cathode lead off first
(c) Semiconductor Components Industries, LLC, 2002
1
February, 2002 - Rev. 2
Publication Order Number: MZP4729A/D
MZP4729A Series
ELECTRICAL CHARACTERISTICS (TA = 25C unless
otherwise noted, VF = 1.5 V Max @ IF = 200 mA for all types) Symbol VZ IZT ZZT IZK ZZK IR VR IF VF IR Parameter Reverse Zener Voltage @ IZT Reverse Current Maximum Zener Impedance @ IZT Reverse Current Maximum Zener Impedance @ IZK Reverse Leakage Current @ VR Breakdown Voltage Forward Current Forward Voltage @ IF Surge Current @ TA = 25C VZ VR IR VF IZT V IF I
Zener Voltage Regulator
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MZP4729A Series
ELECTRICAL CHARACTERISTICS (TA = 25C unless otherwise noted, VF = 1.5 V Max @ IF = 200 mA for all types)
Zener Voltage (Note 2) Device (Note 1) MZP4729A MZP4734A MZP4735A MZP4736A MZP4737A MZP4738A MZP4740A MZP4741A MZP4744A MZP4745A MZP4746A MZP4749A MZP4750A MZP4751A MZP4752A MZP4753A Device Marking MZP4729A MZP4734A MZP4735A MZP4736A MZP4737A MZP4738A MZP4740A MZP4741A MZP4744A MZP4745A MZP4746A MZP4749A MZP4750A MZP4751A MZP4752A MZP4753A VZ (Volts) Min 3.42 5.32 5.89 6.46 7.13 7.79 9.50 10.45 14.25 15.20 17.10 22.80 25.65 28.50 31.35 34.20 Nom 3.6 5.6 6.2 6.8 7.5 8.2 10 11 15 16 18 24 27 30 33 36 Max 3.78 5.88 6.51 7.14 7.88 8.61 10.50 11.55 15.75 16.80 18.90 25.20 28.35 31.50 34.65 37.80 @ IZT mA 69 45 41 37 34 31 25 23 17 15.5 14 10.5 9.5 8.5 7.5 7.0 Zener Impedance (Note 3) ZZT @ IZT W 10 5 2 3.5 4 4.5 7 8 14 16 20 25 35 40 45 50 ZZK @ IZK W 400 600 700 700 700 700 700 700 700 700 750 750 750 1000 1000 1000 mA 1 1 1 1 0.5 0.5 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 Leakage Current IR @ VR A Max 100 10 10 10 10 10 10 5 5 5 5 5 5 5 5 5 Volts 1 2 3 4 5 6 7.6 8.4 11.4 12.2 13.7 18.2 20.6 22.8 25.1 27.4 IR (Note 4) mA 1260 810 730 660 605 550 454 414 304 285 250 190 170 150 135 125
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 30C 1C, 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. 5 PD, MAXIMUM STEADY STATE POWER DISSIPATION (WATTS) 4 3 2 1 0 L = 3/8 L = 1/8
L = LEAD LENGTH TO HEAT SINK
L = 1
0
20
40
60 80 100 120 140 160 TL, LEAD TEMPERATURE (C)
180
200
Figure 1. Power Temperature Derating Curve
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MZP4729A Series
JL(t, D) TRANSIENT THERMAL RESISTANCE JUNCTION TO LEAD (C/W) 30 20 10 7 5 3 2 D =0.5 0.2 0.1 0.05 0.02 0.01 D=0 0.0005 0.001 0.002 0.005 NOTE: BELOW 0.1 SECOND, THERMAL RESPONSE CURVE IS APPLICABLE TO ANY LEAD LENGTH (L). 0.01 0.02 0.05 t, TIME (SECONDS) 0.1 0.2 PPK t2 DUTY CYCLE, D =t1/t2 t1
1 0.7 0.5
SINGLE PULSE TJL = JL (t)PPK REPETITIVE PULSES TJL = JL (t,D)PPK 0.5 1 2 5 10
0.3 0.0001 0.0002
Figure 2. Typical Thermal Response L, Lead Length = 3/8 Inch
1K PPK , PEAK SURGE POWER (WATTS) 500 300 200 100 50 30 20 10 0.1 0.2 0.3 0.5 1 23 5 10 PW, PULSE WIDTH (ms) 20 30 50 100 3 2 1 0.5 0.2 0.1 0.05 0.02 0.01 0.005 TA = 125C
RECTANGULAR NONREPETITIVE WAVEFORM TJ = 25C PRIOR TO INITIAL PULSE
IR , REVERSE LEAKAGE ( Adc) @ VR AS SPECIFIED IN ELEC. CHAR. TABLE
TA = 125C
0.002 0.001 0.0005 0.0003
1
2
5
10 20 50 100 NOMINAL VZ (VOLTS)
200
400
1000
Figure 3. Maximum Surge Power
Figure 4. Typical Reverse Leakage
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MZP4729A Series
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, TL, should be determined from:
TL = LA PD + TA
TJL 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.
TJL = JL PD
LA is the lead-to-ambient thermal resistance (C/W) and PD is the power dissipation. The value for LA will vary and depends on the device mounting method. LA is generally 30-40C/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:
TJ = TL + TJL
For worst-case design, using expected limits of IZ, limits of PD and the extremes of TJ (TJ) may be estimated. Changes in voltage, VZ, can then be found from:
V = VZ TJ
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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MZP4729A Series
TEMPERATURE COEFFICIENT RANGES
(90% of the Units are in the Ranges Indicated)
VZ, TEMPERATURE COEFFICIENT (mV/ C) @ I ZT VZ, TEMPERATURE COEFFICIENT (mV/ C) @ I ZT 10 8 6 4 2 0 -2 -4 3 4 5 6 7 8 9 10 VZ, ZENER VOLTAGE @ IZT (VOLTS) 11 12 RANGE 1000 500 200 100 50 20 10 10 20 50 100 200 400 VZ, ZENER VOLTAGE @ IZT (VOLTS) 1000
Figure 5. Units To 12 Volts
Figure 6. Units 10 To 400 Volts
ZENER VOLTAGE versus ZENER CURRENT
(Figures 7, 8 and 9)
100 50 30 20 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 10 100 50 30 20 10 5 3 2 1 0.5 0.3 0.2 0.1 0 10 20 30 40 50 60 70 VZ, ZENER VOLTAGE (VOLTS) 80 90 100
IZ, ZENER CURRENT (mA)
Figure 7. VZ = 3.3 thru 10 Volts
JL, JUNCTION TO LEAD THERMAL RESISTANCE ( C/W) 10 5 IZ , ZENER CURRENT (mA) 2 1 0.5 0.2 0.1 100 150 200 250 300 350 VZ, ZENER VOLTAGE (VOLTS) 400 80 70 60 50 40 30 20 10 0 0 1/8
IZ , ZENER CURRENT (mA)
Figure 8. VZ = 12 thru 82 Volts
L TL
L
PRIMARY PATH OF CONDUCTION IS THROUGH THE CATHODE LEAD 1/4 3/8 1/2 5/8 3/4 L, LEAD LENGTH TO HEAT SINK (INCH) 7/8 1
Figure 9. VZ = 100 thru 400 Volts
Figure 10. Typical Thermal Resistance
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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. DIM A B D 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 ---
B
K F
D
A F K
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MZP4729A Series
Surmetic is a trademark of Semiconductor Components Industries, LLC.
ON Semiconductor and are 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.
PUBLICATION ORDERING INFORMATION
Literature Fulfillment: Literature Distribution Center for ON Semiconductor P.O. Box 5163, Denver, Colorado 80217 USA Phone: 303-675-2175 or 800-344-3860 Toll Free USA/Canada Fax: 303-675-2176 or 800-344-3867 Toll Free USA/Canada Email: ONlit@hibbertco.com N. American Technical Support: 800-282-9855 Toll Free USA/Canada JAPAN: ON Semiconductor, Japan Customer Focus Center 4-32-1 Nishi-Gotanda, Shinagawa-ku, Tokyo, Japan 141-0031 Phone: 81-3-5740-2700 Email: r14525@onsemi.com ON Semiconductor Website: http://onsemi.com For additional information, please contact your local Sales Representative.
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MZP4729A/D

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