1N6478 THRU 1N6484 SURFACE MOUNT GLASS PASSIVATED JUNCTION RECTIFIER Reverse Voltage - 50 to 1000 Volts Forward Current - 1.0 Ampere FEATURES D * DO-213AB P A T E N T E ♦ Plastic package has Underwriters Laboratory Flammability Classification 94V-0 ♦ For surface mount applications ♦ High temperature metallurgically bonded construction ♦ Glass passivated cavity-free junction ♦ Capable of meeting environmental standards of MIL-S-19500 ♦ High temperature soldering guaranteed: 450°C/5 seconds at terminals. Complete device submersible temperature of 265°C for 10 seconds in solder bath SOLDERABLE ENDS 1st BAND 2nd BAND D1= 0.105 0.095 (2.67) (2.41) D2 0.022 (0.56) 0.018 (0.46) 0 D2 = D1 + - 0.008 (0.20) 0.205 (5.2) 0.185(4.7) 1st band denotes type and positive end (cathode) 2nd band denotes voltage type MECHANICAL DATA Dimensions in inches and (millimeters) *Glass-plastic encapsulation technique is covered by Patent No. 3,996,602 and brazed-lead assembly by Patent No. 3,930,306 ® Case: JEDEC DO-213AB molded plastic over glass body Terminals: Plated terminals, solderable per MIL-STD-750, Method 2026 Polarity: Two bands indicate cathode end - 1st band denotes device type and 2nd band denotes repetitive peak reverse voltage rating Mounting Position: Any Weight: 0.0046 ounce, 0.116 gram MAXIMUM RATINGS AND ELECTRICAL CHARACTERISTICS Ratings at 25°C ambient temperature unless otherwise specified. 1N 6478 1N 6479 Gray Red VRRM 50 100 200 400 VRMS 35 70 140 280 * Maximum DC blocking voltage VDC 50 100 200 400 * Maximum average forward rectified current at I(AV) 1.0 Amp * Peak forward surge current 8.3ms single half sine-wave superimposed on rated load at TA=75°C (JEDEC Method) IFSM 30.0 Amps * Maximum instantaneous forward voltage at 1.0A TA=25°C TA=75°C VF 1.1 1.0 Volts TA=25°C TA=125°C IR 10.0 200.0 µA IR(AV) 100.0 µA CJ 8.0 pF RΘJA RΘJT 50.0 20.0 °C/W TJ, TSTG -65 to +175 °C Standard recovery time device: 1st band is White SYMBOLS Polarity color bands (2nd Band) * Maximum repetitive peak reverse voltage Maximum RMS voltage * Maximum DC reverse current at rated DC blocking voltage * Maximum full load reverse current, full cycle average at TA=75°C * Typical junction capacitance (NOTE 1) * Maximum thermal resistance (NOTE 2) (NOTE 3) * Operating junction and storage temperature range NOTES: (1) Measured at 1.0 MHz and applied reverse voltage of 4.0 Volts (2) Thermal resistance from junction to terminal, 0.24 x 0.24” (6.0 x 6.0mm) copper pads to each terminal (3) Thermal resistance from junction to ambient, 0.24 x 0.24” (6.0 x 6.0mm) copper pads to each terminal * JEDEC Registered Values 4/98 1N 6480 1N 6481 1N 6482 1N 6483 1N 6484 Blue Violet 600 800 1000 Volts 420 560 700 Volts 600 800 1000 Volts Orange Yellow Green UNITS RATINGS AND CHARACTERISTIC CURVES 1N6478 THRU 1N6484 FIG. 2 - MAXIMUM NON-REPETITIVE PEAK FORWARD SURGE CURRENT 1.0 30 60 HZ RESISTIVE OR INDUCTIVE LOAD PEAK FORWARD SURGE CURRENT, AMPERES AVERAGE FORWARD RECTIFIED CURRENT, AMPERES FIG. 1 - FORWARD CURRENT DERATING CURVE 0.8 0.6 0.4 0.2 0 0 25 50 75 100 125 150 TA=75°C 8.3ms SINGLE HALF SINE-WAVE (JEDEC Method) 25 20 15 10 5.0 0 175 1 10 TERMINAL TEMPERATURE, °C FIG. 3 - TYPICAL INSTANTANEOUS FORWARD CHARACTERISTICS FIG. 4 - TYPICAL REVERSE CHARACTERISTICS 10 INSTANTANEOUS REVERSE CURRENT, MICROAMPERES 10 INSTANTANEOUS FORWARD CURRENT, AMPERES 100 NUMBER OF CYCLES AT 60 HZ TJ=25°C PULSE WIDTH=300µs 1% DUTY CYCLE 1 0.1 TJ=100°C 1 0.1 TJ=25°C 0.01 0 20 40 60 80 100 PERCENT OF RATED PEAK REVERSE VOLTAGE, % 0.01 0.4 0.6 0.8 1.0 1.2 1.4 1.6 INSTANTANEOUS FORWARD VOLTAGE, VOLTS FIG. 5 - TYPICAL JUNCTION CAPACITANCE JUNCTION CAPACITANCE, pF TJ=25°C f=1.0 MHZ Vsig=50mVp-p 10 1 1 10 REVERSE VOLTAGE, VOLTS 100 TRANSIENT THERMAL IMPEDANCE (°C/W) FIG. 6 - TYPICAL TRANSIENT THERMAL IMPEDANCE 30 100 MOUNTED ON 0.20 x 0.27” (5 x 7mm) COPPER PAD AREAS 10 1 0.1 0.01 0.1 1 t, PULSE DURATION, sec 10 100