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| RECTRON SEMICONDUCTOR TECHNICAL SPECIFICATION FM4735W THRU FM4763W SURFACE MOUNT ZENER SILICON RECTIFIER VOLTAGE RANGE - 6.2 TO 91.0 Volts Steady State Power- 1.0 Watt FEATURES * * * * Plastic package has underwriters laboratory Excellent clamping capability Low zener impedance Low regulation factor MECHANICAL DATA * Epoxy : Device has UL flammability classification 94V-0 .209 (5.31) .185 (4.70) .110 (2.79) .086 (2.18) .091 (2.31) .067 (1.70) SMX .067 (1.70) .051 (1.30) .010 (0.25) .011 (0.28) .007 (0.18) Ratings at 25 o C ambient temperature unless otherwise specified. .180 (4.57) .160 (4.06) MAXIMUM RATINGS AND ELECTRICAL CHARACTERISTICS Ratings at 25 o C ambient temperature unless otherwise specified. .059 (1.50) .035 (0.89) Dimensions in inches and (millimeters) MAXIMUM RATINGS AND ELECTRICAL CHARACTERISTICE MAXIMUM RATINGS (At TA = 25oC unless otherwise noted) TYPE NOMINAL ZENER V O LTA G E at IZT VZ (NOTE 1) (Volts) FM4735W FM4736W FM4737W FM4738W 6.2 6.8 7.5 8.2 TEST CURRENT IZT (mA) 41.0 37.0 34.0 31.0 MAXIMUM DYNAMIC IMPEDANCE ZZT at IZT (Ohms) 2.0 3.5 4.0 4.5 ZZK at (Ohms) 700 700 700 700 (NOTE 1) IZK MAXIMUM DC REVERSE LEAKAGE CURRENT IR (uA) 50.0 10.0 10.0 10.0 VR (Volts) 3.0 4.0 5.0 6.0 MAXIMUM SURGE CURRENT (NOTE 2) IRM .008 (0.20) (mA) 1.0 1.0 0.5 0.5 (mApk) 730.0 660.0 605.0 550.0 MAXIMUM F O RWA R D V O LTA G E at 200mA VF (Volts) 1.2 1.2 1.2 1.2 2001-6 TYPE NOMINAL ZENER V O LTA G E at IZT VZ (NOTE 1) TEST CURRENT I ZT (mA) MAXIMUM DYNAMIC IMPEDANCE MAXIMUM DC REVERSE LEAKAGE CURRENT MAXIMUM SURGE CURRENT (NOTE 2) IRM (Volts) FM4739W FM4740W FM4741W FM4742W FM4743W FM4744W FM4745W FM4746W FM4747W FM4748W FM4749W FM4750W FM4751W FM4752W FM4753W FM4754W FM4755W FM4756W FM4757W FM4758W FM4759W FM4760W FM4761W FM4762W FM4763W 9.1 10 11 12 13 15 16 18 20 22 24 27 30 33 36 39 43 47 51 56 62 68 75 82 91 ZZT at IZT (Ohms) 5.0 7.0 8.0 9.0 10.0 14.0 16.0 20.0 22.0 23.0 25.0 35.0 40.0 45.0 50.0 60.0 70.0 80.0 95.0 110.0 125.0 150.0 175.0 200.0 250.0 ZZK at (Ohms) 700 700 700 700 700 700 700 750 750 750 750 750 1000 1000 1000 1000 1500 1500 1500 2000 2000 2000 2000 3000 3000 (NOTE 1) IZK (mA) 0.5 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 IR (uA) 10.0 10.0 5.0 5.0 5.0 5.0 5.0 5.0 5.0 5.0 5.0 5.0 5.0 5.0 5.0 5.0 5.0 5.0 5.0 5.0 5.0 5.0 5.0 5.0 5.0 VR (Volts) 7.0 7.6 8.4 9.1 9.9 11.4 12.2 13.7 15.2 16.7 18.2 20.6 22.8 25.1 27.4 29.7 32.7 35.8 38.8 42.6 47.1 51.7 56.0 62.2 69.2 (mApk) 500.0 454.0 414.0 380.0 344.0 305.0 285.0 250.0 225.0 205.0 190.0 170.0 150.0 135.0 125.0 115.0 110.0 95.0 90.0 80.0 70.0 65.0 60.0 55.0 50.0 MAXIMUM F O RWA R D V O LTA G E at 200mA VF (Volts) 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.2 2001-6 28.0 25.0 23.0 21.0 19.0 17.0 15.5 14.0 12.5 11.5 10.5 9.5 8.5 7.5 7.0 6.5 6.0 5.5 5.0 4.5 4.0 3.7 3.3 3.0 2.0 NOTES : 1. Standard voltage tolerance is 10%, Suffix "A" : + 5% 2. Surge current is a non-repetitive, 8.3ms pulse width square wave or equivalent sine-wave superimposed on IZT per JEDEC Method 3. Maximum steady state power dissipation is 1.0 watt at TT=75oC RATING AND CHARACTERISTIC CURVES ( FM4735W THRU FM4763W ) FIG. 1 - MAXIMUM CONTINUOUS POWER DISSIPATION FIG. 2 - TYPICAL ZENER IMPEDANCE PM(AV), AVERAGE POWER DISSIPATION, WATTS 1.0 0.75 0.5 Zz, DYNAMIC ZENER IMPEDANCE, OHMS 60 Hz RESISTIVE OR INDUCTIVE LOAD 1,000 100 10 0.25 P.C.B.MOUNTED ON 0.31 X 0.31 X 0.08" (8 X 8 X 2mm) COPPER AREAS PADS 0 25 50 75 100 125 150 TERMINALS TEMPERATURE, 175 1 0.5 10 100 IZT, ZENER TEST CURRENT, mA 500 FIG. 3 - TYPICAL INSTANTANEOUS FORWARD CHARACTERISTICS FOR FM4763W 10 FIG. 4 - TYPICAL REVERSE CHARACTERISTICS 10 INSTANTANEOUS FORWARD CURRENT, AMPERES INSTANTANEOUS REVERSE CURRENT, MICROAMMPERES 1 PULSE WIDTH=300uS 1% DUTY CYCLE 1 TJ = 100 TJ = 25 0.1 0.1 TJ = 25 0.01 0.4 0.6 0.8 1.0 1.2 1.4 1.6 0.01 0 20 40 60 80 100 INSTANTANEOUS FORWARD VOLTAGE, VOLTS PERCENT OF RATED ZENER VOLTAGE, % Vz, TEMPERATURE COEFFICIENT, mV/ FIG. 5 - TYPICAL TEMPERATURE COEFFICIENTS 110 90 TESTED at RATED IZT 70 50 30 10 0 0 10 20 30 40 50 60 70 80 90 100 Vz, ZENER VOLTAGE, VOLTS RECTRON |
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