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| 1 W Surface Mount Zener Diode ZS300-BL Zener diodes Formosa MS SMA 0.185(4.8) 0.173(4.4) 0.012(0.3) Typ. Features * Plastic package has Underwriters Laboratory Flammability Classification 94V-O Utilizing Flame Retardant Epoxy Molding Compound. * For surface mounted applications. www..com * Exceeds environmental standards of MIL-S-19500/228 * Low zener impedance * Low profile package 0.110(2.8) 0.094(2.4) 0.165(4.2) 0.150(3.8) 0.067(1.7) 0.060(1.5) 0.040(1.0) Typ. 0.040 (1.0) Typ. Mechanical data Case : Molded plastic, JEDEC DO-214AC Terminals : Solder plated, solderable per MIL-STD-750 Polarity : Indicated by cathode band Mounting Position : Any Weight : 0.0015 ounce, 0.05 gram Dimensions in inches and (millimeters) MAXIMUM RATINGS AND ELECTRICAL CHARACTERISTICS Ratings at 25oC ambient temperature unless otherwise specified Storage and operating temperature range -55 to + 150oC Zener Breakdown Voltage VZ V ZS300B 300 I ZT mA 5 Maximum Reverse Current @ Measurement Voltage Z ZK ohms 9000 VR V 285 IR uA 0.5 Maximum Forward Voltage @ IF = 0.2A VF V 1.2 Dynamic Impedances Z ZT ohms 5000 I ZK mA 0.25 Type RATING AND CHARACTERISTIC CURVES (Z300-BL) FIG. 1 - MAXIMUM CONTINUOUS POWER DISSIPARION REVERSE POWER DISSPATION WATTS 1.00 FIG. 2 - ZENER VOLTAGE VERSUS ZENER CURRENT 10 I Z ZENER CURRENT, mA 5.0 2.0 1.0 0.5 0.2 0.1 0.75 0.50 SINGLE PHASE HALF WAVE 60H Z RESISTIVE OR INDUCTIVE LOAD 0.25 www..com 0.00 25 100 50 75 100 125 150 175 150 200 250 300 350 400 LEAD TEMPERATURE, oC FIG. 3 - TYPICAL INSTANTANEOUS FORWARD CHARACTERISTICS V Z ZENER VOLTAGE, VOLTS FIG. 4 - TYPICAL REVERSE CHARACTERISTICS INSTANTANEOUS FORWARD CURRENT, AMPERES 10 10 4.0 1.0 0.4 0.1 0.04 0.01 0 20 40 60 80 100 120 140 1.0 INSTANTANEOUS REVERSE CURRENT, uA T J =25 oC 0.1 TJ = 25 C PULSE WIDTH=300ms 1% DUTY CYCLE o 0.01 0.4 0.6 0.8 1.0 1.2 1.4 1.6 PERCENT OF RATED ZENER VOLTAGE, % INSTANTANEOUS FORWARD VOLTAGE, VOLTS FIG. 5 - TYPICAL TEMPERATURE COEFFICIENTS TEMPERATURE COEFFICIENTS (mV/ oC) @ I ZT 1000 500 200 100 50 20 10 10 20 50 100 200 500 1000 V Z ZENER VOLTAGE @ IZT , VOLTS |
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