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| Bulletin PD-20721 rev. A 06/02 249NQ...(R) SERIES SCHOTTKY RECTIFIER 240 Amp D-67 Major Ratings and Characteristics Characteristics IF(AV) Rectangular waveform VRRM range IFSM @ tp = 5 s sine VF TJ @ 240Apk, TJ=125C range Description/ Features The 249NQ...(R) high current Schottky rectifier module series has been optimized for low reverse leakage at high temperature. The proprietary barrier technology allows for reliable operation up to 175 C junction temperature. Typical applications are in switching power supplies, converters, freewheeling diodes, and reverse battery protection. 175 C TJ operation Unique high power, Half-Pak module Replaces four parallel DO-5's Easier to mount and lower profile than DO-5's High purity, high temperature epoxy encapsulation for enhanced mechanical strength and moisture resistance Low forward voltage drop High frequency operation Guard ring for enhanced ruggedness and long term reliability 249NQ...(R) Units 240 135 to 150 20000 0.72 - 55 to 175 A V A V C 249NQ150 Lug Terminal Anode Base Cathode 249NQ150R Lug Terminal Cathode Base Anode Outline D-67 HALF PAK Module Dimensions in millimeters and (inches) www.irf.com 1 249NQ...(R) Series Bulletin PD-20721 rev. A 06/02 Voltage Ratings Part number VR Max. DC Reverse Voltage (V) VRWM Max. Working Peak Reverse Voltage (V) 249NQ135 135 249NQ150 150 Absolute Maximum Ratings Parameters IF(AV) Max. Average Forward Current * See Fig. 5 IFSM EAS IAR Max. Peak One Cycle Non-Repetitive Surge Current * See Fig. 7 Non-Repetitive Avalanche Energy Repetitive Avalanche Current 249NQ Units 240 20000 2300 15 1 A Conditions 50% duty cycle @ TC = 117 C, rectangular wave form Following any rated load condition and 10ms Sine or 6ms Rect. pulse with rated VRRM applied 5s Sine or 3s Rect. pulse TJ = 25 C, IAS = 1 Amps, L = 30 mH Current decaying linearly to zero in 1 sec Frequency limited by TJ max. VA = 1.5 x VR typical A mJ A Electrical Specifications Parameters VFM Max. Forward Voltage Drop * See Fig. 1 (1) 249NQ Units 1.07 1.27 0.74 0.86 V V V V mA mA pF nH V/ s @ 240A @ 480A @ 240A @ 480A TJ = 25 C TJ = 125 C Conditions TJ = 25 C TJ = 125 C VR = rated VR IRM CT LS Max. Reverse Leakage Current (1) * See Fig. 2 Max. Junction Capacitance Typical Series Inductance 6 85 6000 5.0 10000 VR = 5VDC, (test signal range 100Khz to 1Mhz) 25 C From top of terminal hole to mounting plane (Rated VR) dv/dt Max. Voltage Rate of Change (1) Pulse Width < 300s, Duty Cycle < 2% Thermal-Mechanical Specifications Parameters TJ Tstg Max. Junction Temperature Range Max. Storage Temperature Range 249NQ Units -55 to 175 -55 to 175 0.20 0.15 C C C/W C/W DC operation Conditions RthJC Max. Thermal Resistance Junction to Case RthCS Typical Thermal Resistance, Case to Heatsink wt T Approximate Weight Mounting Torque Terminal Torque Case Style Min. Max. Min. Max. * See Fig. 4 Mounting surface , smooth and greased 25.6 (0.9) g (oz.) 40 (35) 58 (50) 58 (50) 86 (75) Kg-cm (Ibf-in) Non-lubricated threads HALF PAK Module 2 www.irf.com 249NQ...(R) Series Bulletin PD-20721 rev. A 06/02 1000 1000 100 Reverse Current - IR (mA) T = 175C J 150C 125C 100C 75C 10 1 0.1 50C 100 Instantaneous Forward Current - IF (A) TJ = 175C TJ = 125C TJ = 25C 0.01 0.001 0 30 25C 60 90 120 150 Reverse Voltage - VR (V) Fig. 2 - Typical Values Of Reverse Current Vs. Reverse Voltage 10000 Junction Capacitance - CT (pF) 10 T = 25C J 1000 1 0 0.4 0.8 1.2 1.6 Forward Voltage Drop - VFM (V) 2 100 0 30 60 90 120 Reverse Voltage - VR (V) Fig. 3 - Typical Junction Capacitance Vs. Reverse Voltage Fig. 1 - Max. Forward Voltage Drop Characteristics 1 Thermal Impedance ZthJC (C/W) 0.1 D = 0.75 D = 0.50 D = 0.33 D = 0.25 D = 0.20 PDM t1 0.01 Notes: t2 Single Pulse (Thermal Resistance) 1. Duty factor D = t1 / t 2 2. Peak T J = P DM x Z thJC + T C 0.001 0.00001 0.0001 0.001 0.01 0.1 1 10 100 t1, Rectangular Pulse Duration (Seconds) Fig. 4 - Max. Thermal Impedance ZthJC Characteristics www.irf.com 3 249NQ...(R) Series Bulletin PD-20721 rev. A 06/02 180 Allowable Case Temperature - (C) 280 Average Power Loss - (Watts) 160 DC 240 200 160 140 120 100 Square wave (D = 0.50) Rated V applied R D = 0.20 D = 0.25 D = 0.33 D = 0.50 D = 0.75 DC RMS Limit 120 80 40 0 0 100 200 300 400 Average Forward Current - IF(AV) (A) Fig. 6 - Forward Power Loss Characteristics 80 see note (2) 60 0 100 200 300 400 Average Forward Current - IF(AV) (A) Fig. 5 - Max. Allowable Case Temperature Vs. Average Forward Current Non-Repetitive Surge Current - IFSM (A) 100000 At Any Rated Load Condition And With Rated VRRM Applied Following Surge 10000 1000 10 100 1000 10000 Square Wave Pulse Duration - tp (microsec) Fig. 7 - Max. Non-Repetitive Surge Current L H IG H-SPE ED SW ITC H FR EE-W H E EL D IO D E 40H FL40 S02 V d = 25 V olt D UT IRFP460 Rg = 25 ohm + C URRE NT M O N ITO R Fig. 8 - Unclamped Inductive Test Circuit (2) Formula used: TC = TJ - (Pd + PdREV) x RthJC ; Pd = Forward Power Loss = IF(AV) x VFM @ (IF(AV) / D) (see Fig. 6); PdREV = Inverse Power Loss = VR1 x IR (1 - D); IR @ VR1 = rated VR 4 www.irf.com 249NQ...(R) Series Bulletin PD-20721 rev. A 06/02 Data and specifications subject to change without notice. This product has been designed and qualified for Industrial Level. Qualification Standards can be found on IR's Web site. IR WORLD HEADQUARTERS: 233 Kansas St., El Segundo, California 90245, USA Tel: (310) 252-7105 TAC Fax: (310) 252-7309 Visit us at www.irf.com for sales contact information. 06/02 www.irf.com 5 |
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