1W Zener Diodes 1N4728A - 1N4761A 1W Zener Diodes Features • • • • • • 1W Power Dissipation Built-in Strain Relief Low Inductance High Stability Zener Voltage from 3.3V to 75V High temperature soldering guaranteed: 260°C/10 seconds /.037" (9.5mm) lead length, • RoHS Compliance DO-41(G) Mechanical Data Case: Terminals: Weight: DO-41(G), Glass Axial leads, solderable per MIL-STD-202, Method 208 0.012 ounce, 0.3 gram Maximum Ratings Symbol (T Ambient=25ºC unless noted otherwise) Description Value Unit 1 W PD Power Dissipation above 25°C VF Forward Voltage 1.2 V TJ Max. Junction Temperature 150 °C TSTG Storage Temperature Range -65 to +150 °C Conditions IF=0.1 A TAITRON COMPONENTS INCORPORATED www.taitroncomponents.com Rev. D/WW Tel: (800)-TAITRON Fax: (800)-TAITFA Page 1 of 8 (800)-824-8766 (800)-824-8329 (661)-257-6060 (661)-257-6415 1W Zener Diodes 1N4728A - 1N4761A Electrical Characteristics (T Ambient=25ºC unless noted otherwise) Nominal Zener Voltage P/N Nom. VZ VZ @ IZT Min. Max. VZ VZ Maximum Zener Impedance ZZT @ IZT IZT (mA) Zzk @ Izk Maximum Reverse Leakage Current IR @ VR Ω Ω mA µA VR 1N4728A 3.3 3.14 3.47 76 10 400 1.0 100 1.0 1N4729A 3.6 3.42 3.78 69 10 400 1.0 100 1.0 1N4730A 3.9 3.71 4.10 64 9 400 1.0 50 1.0 1N4731A 4.3 4.09 4.52 58 9 400 1.0 10 1.0 1N4732A 4.7 4.47 4.94 53 8 500 1.0 10 1.0 1N4733A 5.1 4.85 5.36 49 7 550 1.0 10 1.0 1N4734A 5.6 5.32 5.88 45 5 600 1.0 10 2.0 1N4735A 6.2 5.89 6.51 41 2 700 1.0 10 3.0 1N4736A 6.8 6.46 7.14 37 3.5 700 1.0 5 4.0 1N4737A 7.5 7.13 7.88 34 4.0 700 0.5 5 5.0 1N4738A 8.2 7.79 8.61 31 4.5 700 0.5 5 6.0 1N4739A 9.1 8.65 9.56 28 5 700 0.5 0.5 7.0 1N4740A 10 9.50 10.50 25 7 700 0.25 0.5 7.6 1N4741A 11 10.45 11.55 23 8 700 0.25 0.1 8.4 1N4742A 12 11.40 12.60 21 9 700 0.25 0.1 9.1 1N4743A 13 12.35 13.65 19 10 700 0.25 0.1 9.9 1N4744A 15 14.25 15.75 17 14 700 0.25 0.1 11.4 1N4745A 16 15.20 16.80 15.5 16 700 0.25 0.1 12.2 1N4746A 18 17.10 18.90 14 20 750 0.25 0.1 13.7 1N4747A 20 19.00 21.00 12.5 22 750 0.25 0.1 15.2 1N4748A 22 20.90 23.10 11.5 23 750 0.25 0.1 16.7 1N4749A 24 22.80 25.20 10.5 25 750 0.25 0.1 18.2 1N4750A 27 25.65 28.35 9.5 35 750 0.25 0.1 20.6 1N4751A 30 28.50 31.50 8.5 40 1000 0.25 0.1 22.8 1N4752A 33 31.35 34.65 7.5 45 1000 0.25 0.1 25.1 1N4753A 36 34.20 37.80 7.0 50 1000 0.25 0.1 27.4 1N4754A 39 37.05 40.95 6.5 60 1000 0.25 0.1 29.7 1N4755A 43 40.85 45.15 6.0 70 1500 0.25 0.1 32.7 Rev. D/WW www.taitroncomponents.com Page 2 of 8 1W Zener Diodes 1N4728A - 1N4761A Nominal Zener Voltage P/N Nom. VZ VZ @ IZT Min. Max. VZ VZ Maximum Zener Impedance ZZT @ IZT IZT (mA) Zzk @ Izk Maximum Reverse Leakage Current IR @ VR Ω Ω mA µA VR 1N4756A 47 44.65 49.35 5.5 80 1500 0.25 0.1 35.8 1N4757A 51 48.45 53.55 5.0 95 1500 0.25 0.1 38.8 1N4758A 56 53.20 58.80 4.5 110 2000 0.25 0.1 42.6 1N4759A 62 58.90 65.10 4.0 125 2000 0.25 0.1 47.1 1N4760A 68 64.60 71.40 3.7 150 2000 0.25 0.1 51.7 1N4761A 75 71.25 78.75 3.3 175 2000 0.25 0.1 56.0 Note: 1. Tolerance and Type Number Designation. The type numbers listed have a standard tolerance on the nominal Zener voltage of ±5% 2. Specials Available Include: A. Nominal Zener voltages between the voltages shown and tighter voltage tolerances. B. Matched sets. 3. Zener Voltage (VZ) Measurement. Guarantees the Zener voltage when measured at 90 seconds while maintaining the lead temperature (TL) 30 °C±1°C from the diode body. 4. Zener Impedance (ZZ) derivation. The Zener impedance is derived from the 60 cycle ac voltage, which results an ac current having an rms value equal to 10% of the dc Zener current (IZT or IZK) is superimposed on IZT or IZK 5. Surge Current (Ir) Non-Repetitive. The rating listed in the electrical characteristics table is maximum peak, non-repetitive, reverse surge current of ½. Characteristics Curves PD, MAXIMUM POWER DISSIPATION (WATTS) FIGURE 1 POWER TEMPERATURE DERATING CURVE TA, AMBIENT TEMPERATURE (°C) Rev. D/WW www.taitroncomponents.com Page 3 of 8 1W Zener Diodes 1N4728A - 1N4761A FIGURE 2 TEMPERATURE COEFFICIENTS (-55°C TO 150 °C TEMPERATURE RANGE; 90% OF THE UNITS ARE IN THE RANGES INDICATED.) b. RANGE FOR UNITS 12 TO 100 VOLTS θVZ, TEMPERATURE COEFFICIENT (mV/°C) θVZ, TEMPERATURE COEFFICIENT (mV/°C) a. RANGE FOR UNITS TO 12 VOLTS VZ, ZENER VOLTAGE (VOLTS) VZ, ZENER VOLTAGE (VOLTS) FIGURE 4 EFFECT OF ZENER CURRENT θVZ, TEMPERATURE COEFFICIENT (mV/°C) θJL, JUNCTION TO LEAD THERMAL RESISTANCE (°C /W) FIGURE 3 TYPICAL RESISTANCE VERSUS LEAD LENGTH L, LEAD LENGTH TO HEAT SINK (INCHES) VZ, ZENER VOLTAGE (VOLTS) Rev. D/WW www.taitroncomponents.com Page 4 of 8 1W Zener Diodes 1N4728A - 1N4761A PPK, PEAK SURGE POWER (WATTS) FIGURE 5 MAXIMUM SURGE POWER PW, PULSE WIDTH (MS) This graph represents 90% data points For worst-case design characteristics, multiply surge power by 2/3 FIGURE 6 EFFECT OF ZENER CURRENT ON ZENER IMPEDANCE ΖΖ, DYNAMIC IMPEDANCE (OHMS) ΖΖ, DYNAMIC IMPEDANCE (OHMS) FIGURE 7 EFFECT OF ZENER VOLTAGE ON ZENER IMPEDANCE Iz, ZENER CURRENT ( mA ) VZ, ZENER VOLTAGE (VOLTS) Rev. D/WW www.taitroncomponents.com Page 5 of 8 1W Zener Diodes 1N4728A - 1N4761A FIGURE 9 TYPICAL CAPACITANCE VERSUS VZ IR, LEAKAGE CURRENT ( mA ) C, CAPACITANCE (PF) FIGURE 8 TYPICAL LEAKAGE CURRENT VZ, ZENER VOLTAGE (VOLTS) IF, FORWARD CURRENT (mA) FIGURE 10 TYPICAL FORWARD CHARACTERISTICS VZ, NOMINAL ZENER VOLTAGE (VOLTS) VF, FORWARD VOLTAGE (VOLTS) Rev. D/WW www.taitroncomponents.com Page 6 of 8 1W Zener Diodes 1N4728A - 1N4761A Dimensions in inches (mm) DO-41(G) Ordering Information 1N4728 A – xx – TR40 Packing Code: TR40: 14” reel in Tape and Reel, RoHS BL: Bulk, RoHS Factory Location Code Standard Zener Voltage Tolerance is ±5 % Series Part Number Rev. D/WW www.taitroncomponents.com Page 7 of 8 1W Zener Diodes 1N4728A - 1N4761A How to contact us: US HEADQUARTERS 28040 WEST HARRISON PARKWAY, VALENCIA, CA 91355-4162 Tel: (800)-TAITRON (800)-824-8766 (661)-257-6060 Fax: (800)-TAITFAX (800)-824-8329 (661)-257-6415 Email: [email protected] Http://www.taitroncomponents.com TAITRON COMPONENTS MEXICO, S.A .DE C.V. BOULEVARD CENTRAL 5000 INTERIOR 5 PARQUE INDUSTRIAL ATITALAQUIA, HIDALGO C.P. 42970 MEXICO Tel: +52-55-5560-1519 Fax: +52-55-5560-2190 TAITRON COMPONENTS INCORPORATED TAIWAN, TAIPEI 6F., No.190, Sec. 2, Zhongxing Rd., Xindian Dist., New Taipei City 23146, Taiwan R.O.C. Tel: 886-2-2913-6238 Fax: 886-2-2913-6239 TAITRON COMPONENT TECHNOLOGY, SHANGHAI CORPORATION METROBANK PLAZA,1160 WEST YAN’AN ROAD, SUITE 1503, SHANGHAI,200052, CHINA Tel: +86-21-5424-9942 Fax: +86-21-2302-5027 Rev. D/WW www.taitroncomponents.com Page 8 of 8