1N4942 thru 1N4948 FEATURES Microminiature package. Voidless hermetically seated glass package. Triple layer passivation. e Metallurgically bonded. e Fast recovery. e PIV to 1,000 volts. TX/TXV types available per MIL-S-19500/286. ABSOLUTE MAXIMUM RATINGS Operating Temperature: 65C to +175C. Storage Temperature: 65C to +200C. Power Dissipation: (A) 3 Amp/MIL-STD-750 (See Figure 2). {B) 1Amp/no heat sink @ +55C SPECIFICATIONS Electrical Characteristics PEAK | BREAKDOWN AVERAGE | FORWARD REVERSE |CAPACITANCE| SURGE | REVERSE INVERSE VOLTAGE RECTIFIED | VOLTAGE CURRENT {MAX} CURRENT RECOVERY| VOLTAGE (MIN.) CURRENT (MAX.) (MAX.) Co @ -t2 (MAX.) (MAX.) TYPE {MAX.) By @ 50.A ly Vp @1Aa Ip @ PIV (NOTE 1)| (NOTE 2) Pl I(surge) ter VOLTS VOLTS AMPS VOLTS vA pF AMPS nsec. 55C | 100C 25C | 150C JAN 1N4942 200 220 1.0 | .750 1.3 1.0 | 200 45 15 150 JAN 1N4944 400 440 4.0 | .750 1.3 1.0 | 200 35 15 150 JAN 1N4946 600 660 1.0 | .750 1.3 4.0 | 200 25 15 250 JAN 1N4947 800 880 1.0 | .750 1.3 1.0 | 200 25 15 250 JAN 1N4948 | 1000 1100 1.0 | .750 1.3 1.0 | 200 15 15 500 NOTE 1: Ta = 100C, f = 60 Hz, lo = 750 mA, 10-8 m sec. surges @ 1/minute. NOTE 2: 1p = 5A, trp = 1A, 1pp = 250A. MECHANICAL CHARACTERISTICS Case: Hermetically sealed glass case. Lead Material: Tinned copper. Marking: Body painted, alpha numeric. Polarity: Cathode band.130 1N4942 thru 1N4948 ~) 375 375 t i Pmax = TI 1s ols Ts Ts HEAT HEAT SINK SINK Thermat Resistance From Junction To Heat Sink Ojs = 30C/W Max. Pmax. = Max. Continuous Dissipation, Watts Tj = Max. Junction Temp. = 175C Ts = Heat Sink Temp FIGURE 2 MIL STD 750 METHOD 1026 (A) 3.0 MIL STD 750 METHOD 1026 2.5 28 1.0 NO HEAT SINK AVERAGE FORWARD AMPS a 0.5 65 0 25 50 75 100 125 150 175 200 AMBIENT TEMPERATURE FIGURE 3 MAXIMUM FORWARD CURRENT vs AMBIENT TEMPERATURE