MZP4729A Series 3 Watt DO-41 Surmetic 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. http://onsemi.com Specification Features: • • • • • 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 Mechanical Characteristics: CASE: Void free, transfer–molded, thermosetting plastic FINISH: All external surfaces are corrosion resistant and leads are Anode AXIAL LEAD CASE 59 PLASTIC 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 MARKING DIAGRAM L MZP4 7xxA YYWW 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 L = Assembly Location MZP47xxA = Device Code = (See Table Next Page) YY = Year WW = Work Week 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, 2001 May, 2001 – Rev. 1 1 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 http://onsemi.com 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 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″ 4 L = LEAD LENGTH TO HEAT SINK 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 http://onsemi.com 3 200 MZP4729A Series θJL(t, D) TRANSIENT THERMAL RESISTANCE JUNCTIONTOLEAD (°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 ∆TJL = θJL (t)PPK REPETITIVE PULSES ∆TJL = θJL (t,D)PPK 0.5 1 2 5 10 PPK , PEAK SURGE POWER (WATTS) 1K IR , REVERSE LEAKAGE (µ Adc) @ VR AS SPECIFIED IN ELEC. CHAR. TABLE Figure 2. Typical Thermal Response L, Lead Length = 3/8 Inch 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 3 2 1 0.5 0.02 0.01 0.005 0.002 0.001 0.0005 0.0003 100 TA = 125°C 0.2 0.1 0.05 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 http://onsemi.com 4 1000 MZP4729A Series APPLICATION NOTE ∆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. 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: ∆TJL = θJL PD 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: 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: ∆V = θVZ ∆TJ 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 + ∆TJL http://onsemi.com 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 50 30 20 50 30 20 IZ , ZENER CURRENT (mA) IZ, ZENER CURRENT (mA) (Figures 7, 8 and 9) 100 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 Figure 7. VZ = 3.3 thru 10 Volts 2 1 0.5 0.2 200 250 300 350 VZ, ZENER VOLTAGE (VOLTS) 400 θJL, JUNCTIONTOLEAD THERMAL RESISTANCE (° C/W) IZ , ZENER CURRENT (mA) 5 150 80 90 100 Figure 8. VZ = 12 thru 82 Volts 10 0.1 100 30 40 50 60 70 VZ, ZENER VOLTAGE (VOLTS) 80 70 60 50 L 40 30 TL 20 PRIMARY PATH OF CONDUCTION IS THROUGH THE CATHODE LEAD 10 0 L 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 http://onsemi.com 6 1 MZP4729A Series OUTLINE DIMENSIONS Zener Voltage Regulators – Axial Leaded 3 Watt DO–41 Surmetic 30 PLASTIC DO–41 CASE 59–03 ISSUE M B D K NOTES: 1. ALL RULES AND NOTES ASSOCIATED WITH JEDEC DO-41 OUTLINE SHALL APPLY. 2. POLARITY DENOTED BY CATHODE BAND. 3. LEAD DIAMETER NOT CONTROLLED WITHIN F DIMENSION. DIM A B D F K F A MILLIMETERS MIN MAX 4.07 5.20 2.04 2.71 0.71 0.86 --1.27 27.94 --- F K http://onsemi.com 7 INCHES MIN MAX 0.160 0.205 0.080 0.107 0.028 0.034 --0.050 1.100 --- 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. 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