FM4735W RECTRON THRU SEMICONDUCTOR TECHNICAL SPECIFICATION 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 SMX 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) .160 (4.06) .008 (0.20) .180 (4.57) .010 (0.25) .011 (0.28) .007 (0.18) .067 (1.70) .051 (1.30) Ratings at 25 o C ambient temperature unless otherwise specified. MAXIMUM RATINGS AND ELECTRICAL CHARACTERISTICS .059 (1.50) .035 (0.89) Ratings at 25 o C ambient temperature unless otherwise specified. 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 I ZT VZ (NOTE 1) (Volts) TEST CURRENT IZT (mA) MAXIMUM DYNAMIC IMPEDANCE Z ZT at IZT (Ohms) Z ZK at (Ohms) (NOTE 1) IZK (mA) MAXIMUM DC REVERSE LEAKAGE CURRENT MAXIMUM SURGE CURRENT (NOTE 2) IRM IR (uA) VR (Volts) (mApk) MAXIMUM F O RWA R D V O LTA G E at 200mA VF (Volts) FM4735W 6.2 41.0 2.0 700 1.0 50.0 3.0 730.0 1.2 FM4736W 6.8 37.0 3.5 700 1.0 10.0 4.0 660.0 1.2 FM4737W 7.5 34.0 4.0 700 0.5 10.0 5.0 605.0 1.2 FM4738W 8.2 31.0 4.5 700 0.5 10.0 6.0 550.0 1.2 2001-6 TYPE NOMINAL ZENER V O LTA G E at I ZT VZ TEST CURRENT I ZT (NOTE 1) (mA) (Volts) MAXIMUM DYNAMIC IMPEDANCE Z ZT at IZT (Ohms) Z ZK at (Ohms) (NOTE 1) IZK (mA) MAXIMUM DC REVERSE LEAKAGE CURRENT MAXIMUM SURGE CURRENT IR (uA) VR (Volts) (mApk) MAXIMUM F O RWA R D V O LTA G E at 200mA VF (Volts) (NOTE 2) IRM FM4739W 9.1 28.0 5.0 700 0.5 10.0 7.0 500.0 1.2 FM4740W 10 25.0 7.0 700 0.25 10.0 7.6 454.0 1.2 FM4741W 11 23.0 8.0 700 0.25 5.0 8.4 414.0 1.2 FM4742W 12 21.0 9.0 700 0.25 5.0 9.1 380.0 1.2 FM4743W 13 19.0 10.0 700 0.25 5.0 9.9 344.0 1.2 FM4744W 15 17.0 14.0 700 0.25 5.0 11.4 305.0 1.2 FM4745W 16 15.5 16.0 700 0.25 5.0 12.2 285.0 1.2 FM4746W 18 14.0 20.0 750 0.25 5.0 13.7 250.0 1.2 FM4747W 20 12.5 22.0 750 0.25 5.0 15.2 225.0 1.2 FM4748W 22 11.5 23.0 750 0.25 5.0 16.7 205.0 1.2 FM4749W 24 10.5 25.0 750 0.25 5.0 18.2 190.0 1.2 FM4750W 27 9.5 35.0 750 0.25 5.0 20.6 170.0 1.2 FM4751W 30 8.5 40.0 1000 0.25 5.0 22.8 150.0 1.2 FM4752W 33 7.5 45.0 1000 0.25 5.0 25.1 135.0 1.2 FM4753W 36 7.0 50.0 1000 0.25 5.0 27.4 125.0 1.2 FM4754W 39 6.5 60.0 1000 0.25 5.0 29.7 115.0 1.2 FM4755W 43 6.0 70.0 1500 0.25 5.0 32.7 110.0 1.2 FM4756W 47 5.5 80.0 1500 0.25 5.0 35.8 95.0 1.2 FM4757W 51 5.0 95.0 1500 0.25 5.0 38.8 90.0 1.2 FM4758W 56 4.5 110.0 2000 0.25 5.0 42.6 80.0 1.2 FM4759W 62 4.0 125.0 2000 0.25 5.0 47.1 70.0 1.2 FM4760W 68 3.7 150.0 2000 0.25 5.0 51.7 65.0 1.2 FM4761W 75 3.3 175.0 2000 0.25 5.0 56.0 60.0 1.2 FM4762W 82 3.0 200.0 3000 0.25 5.0 62.2 55.0 1.2 FM4763W 91 2.0 250.0 3000 0.25 5.0 69.2 50.0 1.2 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 2001-6 RATING AND CHARACTERISTIC CURVES ( FM4735W THRU FM4763W ) 1.0 FIG. 2 - TYPICAL ZENER IMPEDANCE 60 Hz RESISTIVE OR INDUCTIVE LOAD 0.75 0.5 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 Zz, DYNAMIC ZENER IMPEDANCE, OHMS PM(AV), AVERAGE POWER DISSIPATION, WATTS FIG. 1 - MAXIMUM CONTINUOUS POWER DISSIPATION PULSE WIDTH=300uS 1% DUTY CYCLE TJ = 25 0.1 0.01 0.4 0.6 0.8 1.0 1.4 1.2 1.6 INSTANTANEOUS FORWARD VOLTAGE, VOLTS 100 10 1 0.5 10 100 IZT, ZENER TEST CURRENT, mA 10 TJ = 100 1 0.1 TJ = 25 0.01 0 20 40 60 80 PERCENT OF RATED ZENER VOLTAGE, % FIG. 5 - TYPICAL TEMPERATURE COEFFICIENTS 110 90 TESTED at RATED IZT 70 50 30 10 0 0 500 FIG. 4 - TYPICAL REVERSE CHARACTERISTICS INSTANTANEOUS REVERSE CURRENT, MICROAMMPERES 1 Vz, TEMPERATURE COEFFICIENT, mV/ INSTANTANEOUS FORWARD CURRENT, AMPERES FIG. 3 - TYPICAL INSTANTANEOUS FORWARD CHARACTERISTICS FOR FM4763W 10 1,000 10 20 30 40 50 60 70 80 90 100 Vz, ZENER VOLTAGE, VOLTS RECTRON 100