8AF8NPP

Bulletin I20262 Rev.A 06/03 8AF SERIES PRESSFIT RECTIFIER DIODES Features and Descriptions Convenient pressfit package Available with and without leads High surge capabilities 50 A Application Welders, Battery charges, Alternators Major Ratings and Characteristics Parameters IF(AV) @ TC IF(RMS) IFSM It I2√t VRRM range TJ 2 8AF 50 150 79 714 747 2546 2324 25455 100 to 800 - 65 to 195 Units A °C A A A A 2s A 2s A2√s V o @ 50Hz @ 60Hz @ 50Hz @ 60Hz C IR Case Style B-47 www.irf.com 1 8AF Series Bulletin I20262 Rev.A 06/03 ELECTRICAL SPECIFICATIONS Voltage Ratings Type number Voltage Code 1 8AF 2 4 8 VRRM , maximum repetitive peak reverse voltage V 100 200 400 800 VRSM , maximum nonrepetitive peak rev. voltage V 150 300 500 900 @ TJ = 150°C IRRM max. mA 5 5 5 5 Forward Conduction Parameter IF(AV) IF(RMS) IFSM Maximum average forward current @ Case temperature Maximum RMS forward current Maximum peak, one-cycle forward, non-repetitive surge current 8AF 50 150 79 714 747 600 628 Units Conditions A °C A A t = 10ms t = 8.3ms t = 10ms t = 8.3ms As 2 180° conduction, half sine wave No voltage reapplied 100% VRRM reapplied No voltage reapplied 100% VRRM reapplied Sinusoidal half wave, Initial TJ = TJ max. It 2 Maximum I t for fusing 2 2546 2324 1800 1643 t = 10ms t = 8.3ms t = 10ms t = 8.3ms I2√t Maximum I2√t for fusing 25455 0.60 0.68 6.66 6.25 1.45 A2√s V t = 0.1 to 10ms, no voltage reapplied (16.7% x π x IF(AV) < I < π x IF(AV)), TJ = TJ max. (π x IF(AV) < I < 20 x π x IF(AV)), TJ = TJ max. (16.7% x π x IF(AV) < I < π x IF(AV)), TJ = TJ max. (π x IF(AV) < I < 20 x π x IF(AV)), TJ = TJ max. TJ = 25°C, IFM = π x rated IF(AV) VF(TO)1 Low level value of threshold voltage VF(TO)2 High level value of threshold voltage rf1 rf2 VFM Low level value of forward slope resistance High level value of forward slope resistance Maximum forward voltage drop mΩ V Thermal and Mechanical Specifications Parameter TJ Tstg R thJC R thCS wt Max. junction operating temperature range Storage temperature range Max. thermal resistance, junction to case Typical thermal resistance, case to heatsink Approximate weight Case style 8AF - 65 to 195 - 65 to 195 0.60 0.50 10 (0.36) B-47 Units Conditions °C K/W g (oz) DC operation As per mounting details See outline table MOUNTING: A 12.6 ± 0.02mm (0.496 to 0.497 inch) diameter hole should be drilled in heatsink, the leading edge chamfered to 0.038mm (0.015 inch) x 45°. The diode should then be press fitted, ensuring that the sides of the diode are kept parallel to the sides of the hole. 2 www.irf.com 8AF Series Bulletin I20262 Rev.A 06/03 ∆RthJC Conduction Conduction angle 180° 120° 90° 60° 30° (The following table shows the increment of thermal resistance RthJC when devices operate at different conduction angles than DC) Sinusoidal conduction Rectangular conduction 0.042 0.045 0.06 0.10 0.15 0.026 0.043 0.06 0.10 0.15 Units Conditions TJ = TJ max. K/W Ordering Information Table Device Code 8AF 1 1 2 3 4 Essential part number 8 2 N 3 LV 4 Voltage code: Code x 100 = VRRM (See Voltage Ratings Table) N = Normal Polarity (cathode to case) R = Reverse Polarity (anode to case) PP = Without Lead LH = Horizontal Lead LV = Vertical Lead Available as special product - Contact Factory Outline Table 15.8 (0.62) 12.5 (0.49) 7 (0.28) 0.9 (0.03) R 0.4 (0.02) 16.5 (0.65) 2.4 (0.09) 5 (0.20) 22.5 (0.89) 0.5 (0.02) 6 (0.24) DIA. 12.77 / 13.27 (0.50) / (0.52) All dimensions in millimeters (inches) www.irf.com 3 8AF Series Bulletin I20262 Rev.A 06/03 Maximum Allowable Case Temperature (°C) Maximum Allowable Case Temperature (°C) 200 190 180 Conduction Angle 8AF Series RthJC (DC) = 0.6 K/W 200 190 180 8AF Series RthJC (DC) = 0.6 K/W Conduction Period 170 160 150 30° 140 0 5 10 15 20 25 30 35 40 45 50 55 Average Forward Current (A) 60° 170 160 150 30° 140 0 10 20 30 40 50 60 70 80 Average Forward Current (A) 90° 60° 120° 90° 120° 180° 180° DC Fig. 1 - Current Ratings Characteristics Maximum Average Forward Power Loss (W) 80 70 60 50 40 30 20 10 0 0 10 20 30 40 50 60 0 25 50 8AF Series T = 195°C J 5K /W Fig. 2 - Current Ratings Characteristics 180° 120° 90° 60° 30° R SA th 1.5 K/ W 2K /W = 1 K/ W RMS Limit 3K /W -D el ta R Conduction Angle 10 K/W 15 K/W 75 100 125 150 Average Forward Current (A) Maximum Allowable Ambient Temperature (°C) Fig. 3 - Forward Power Loss Characteristics 90 80 70 60 50 40 5K /W Maximum Average Forward Power Loss (W) DC 180° 120° 90° 60° 30° R 1.5 K/ W 2K /W SA th = 1K /W -D elt a R RMS Limit 3K /W 30 20 10 0 0 10 20 30 40 Conduction Period 10 K/W 8AF Series T = 195°C J 50 60 70 0 80 15 K/W 25 50 75 100 125 150 Average Forward Current (A) Maximum Allowable Ambient Temperature (°C) Fig. 4 - Forward Power Loss Characteristics 4 www.irf.com 8AF Series Bulletin I20262 Rev.A 06/03 700 Peak Half Sine Wave Forward Current (A) 650 600 550 500 450 400 350 300 250 200 150 1 10 100 Number Of Equal Amplitude Half Cycle Current Pulses (N) 750 Peak Half Sine Wave Forward Current (A) At Any Rated Load Condition And With Rated V RRM Applied Following Surge. Initial TJ = 195°C @ 60 Hz 0.0083 s @ 50 Hz 0.0100 s 700 650 600 550 500 450 400 350 300 250 200 150 0.01 Maximum Non Repetitive Surge Current Versus Pulse Train Duration. Initial TJ = 195 °C No Voltage Reapplied Rated VRRM Reapplied 8AF Series 8AF Series 0.1 Pulse Train Duration (s) 1 Fig. 5 - Maximum Non-Repetitive Surge Current 1000 Instantaneous Forward Current (A) Fig. 6 - Maximum Non-Repetitive Surge Current 1 Steady State Value (DC Operation) 8AF Series 100 Transient Thermal Impedance Z thJC (K/W) 0.1 10 T = 25°C J T = 195°C J 1 0 1 2 3 4 5 6 7 Instantaneous Forward Voltage (V) 8AF Series 0.01 0.001 0.01 0.1 1 10 Square Wave Pulse Duration (s) Fig. 7 - Forward Voltage Drop Characteristics Fig. 8 - Thermal Impedance ZthJC Characteristic www.irf.com 5