BY251_09 PANJIT | Alldatasheet
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Technical content
PAGE . 1STAD-FEB.27.2009 BY251 ~ BY255
FEATURES
- High current capability. Plastic package has Underwriters Laboratories Flammability Classification 94V-O Void-free Plastic in DO-201AD package. Exceeds environmental standards of MIL-S-19500/228 Low leakage . In compliance with EU RoHS 2002/95/EC directives MECHANICAL DATA Case: Molded plastic, DO-201AD Terminals: Axial leads, solderable to MIL-STD-750,Method 2026 Polarity: Color Band denotes cathode end Mounting Position: Any Weight: 0.0395 ounce, 1.122 grams MEDIUM CURRENT PLASTIC RECTIFIER MAXIMUM RATINGS AND ELECTRICAL CHARACTERISTICS Ratings at 25°C ambient temperature unless otherwise specified. Resistive or inductive load, 60Hz. NOTES: 1. Measured at 1 MHz and applied reverse voltage of 4.0 volts. 2.Thermal resistance from junction to ambient. 3.Reverse Recovery Test Conditions:IF=0.5A , IR =1.0A ,Irr=0.25A DO-201AD Unit: inch(mm) .052(1.3) .210(5.3) 1.0(25.4)MIN. 1.0(25.4)MIN. .375(9.5).285(7.2) .048(1.2) .188(4.8) VOLTAGE 200 to 1300 Volts 3.0 AmperesCURRENT RETEMARAPL OBMYS1 52YB2 52YB3 52YB4 52YB5 52YBS TINU egatloVesreveRkaePtnerruceRmumixaMV MRR 0020 040 060 080 031V egatloVSMRmumixaMV SMR 0410 820 240 650 19V egatloVgnikcolBCDmumixaMV CD 0020 040 060 080 031V )mm5.9("573.tnerruCdrawroFegarevAmumixaM htgneldael I (F) VA 0.3A evaw-enisflahelgnissm3.8:tnerruCegruSdrawroFkaeP )dohtemCEDEJ(daoldetarnodesopmirepus I MSF 001A A0.3taegatloVdrawroFmumixaMV F 1.1V TtatnerruCesreveRCDmumixaM J 52= OC TegatloVgnikcolBCDdetaR J 001= OC IR 0.5 0001 µA )1etoN(ecnaticapacnoitcnuJlacipyTC J 04F p )2etoN(ecnatsiseRlamrehTlacipyTR θ AJ 51 O W/C egnaRerutarepmeTegarotSdnanoitcnuJgnitarepOT J T, GTS 051+ot55- OC
PAGE . 2STAD-FEB.27.2009 BY251 ~ BY255 FIG.1 FORWARD CURRENT DERATING CURVE FIG.3 TYPICAL JUNCTION CAPACITANCE AMBIENT TEMPERATURE, C O AVERAGE FORWARD RECTIFIED CURRENT AMPERES RATING AND CHARACTERISTIC CURVES 3.0 2.0 1.0 0 50 100 150 1.5 2.5 0.5 SINGLE PHASE HALF WAVE 60Hz RESISTIVE OR INDUCTIVE LOAD .375" (9.5mm) LEAD LENGTH FIG.2 TYPICAL FORWARD CHARACTERISTICS INSTANTANEOUS FORWARD VOLTAGE, VOLTS INSTANTANEOUS FORWARD CURRENT, AMPERES 100 101 ?.1 REVERSE VOLTAGE, VOLTS JUNCTION CAP ACITANCE, pF 100 1.0 0.1 0 .01 100 Fig.4 MAXIMUM NON REPETITIVE PEAK SURGE CURRENT NO. OF CYCLES AT 60Hz PEAK FORWARD SURGE CURRENT, AMPERES 100 120 1 2 61 0 2 0 4 0 6 01 0 0 Fig.5-TYPICAL REVERSE CHARACTERISTIC INSTANTANEOUS REVERSE CURRENT , A /c109 PERCENTAGE OF PEAK REVERSE VOLTAGE,% 0.1 20 40 60 80 100 120 140 1.0 100 1000 T= 1 2 5Co J T= 1 0 0CJ O T= 2 5 CJ O