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BZX79C20PT Datasheet(PDF) 1 Page - Chenmko Enterprise Co. Ltd. |
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BZX79C20PT Datasheet(HTML) 1 Page - Chenmko Enterprise Co. Ltd. |
1 / 3 page CHENMKO ENTERPRISE CO.,LTD AXIAL LEAD SILICON PLANAR POWER ZENER DIODES VOLTAGE RANGE 2.4V TO 51V ELECTRICAL CHARACTERISTICS ( At TA = 25 oC unless otherwise noted ) NOTES : 2001-6 Max. Instantaneous Forward Voltage at IF= 10mA CHARACTERISTICS SYMBOL UNITS 300 1.0 Volts oC/W Thermal Resistance Junction to Ambient MAXIMUM RATINGES ( At TA = 25 oC unless otherwise noted ) RATINGS Zener Current ( see Table "Characteristics" ) Max. Steady State Power Dissipation @TL=75oC,Lead Length=3/8" Max. Operating Temperature Range Storage Temperature Range SYMBOL - PD TJ TSTG R JA VF VALUE MAX. - - TYP. - - MIN. UNITS - mW - 500 1. The numbers listd have a standaerd tolerance on the normal zener voltage of +5%. 2. The zener impedance is derived from 1KHz AC voltage, which results when an AC current having an RMS value equal to 10% of DC zener current (IZT or IZK) is superimposed on IZT or IZK. Zener impedance is measured at two points to insure a sharp knee on the breakdown curve to eliminate unstable units. 3. Valid provided that electrodes at distance of 8mm from case are kept ambient temperature. 4. Measured under thermal equilibrium and DC test conditions. 5. The rating listd 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. 6. Measured at IZT= 2mA and IZK= 0.5mA. FEATURE * High temperature soldering type. * ESD rating of class 3(>16 kV) per human body model. * Silicon planar zener diodes. * Silcon-oxide passivated junction. * Low temperature coefficient voltage MECHANICAL * Axial-lead hermetically sealed package. * DO-35 Packaging. * Cathode indicated by polarity band. * Mounting position: Any. * Weight: Approx. 0.13g. DO-35 DO-35 MAXIMUM RATINGS AND ELECTRICAL CHARACTERISTICS Ratings at 25 oC ambient temperature unless otherwise specified. +200 -65 to +200 oC oC BZX79C 2V4PT THRU BZX79C 51PT MAX. .165 (4.2) 1.02 (26.0) MIN. 1.02 (26.0) MIN. .079 (2.0) MAX. DIA. .022 (0.56) .018 (0.46) DIA. Dimensions in inches and (millimeters) |
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