Bulletin PD-20721 rev. A 06/02 249NQ...(R) SERIES 240 Amp SCHOTTKY RECTIFIER D-67 Description/ Features Major Ratings and Characteristics Characteristics IF(AV) Rectangular 249NQ...(R) Units 240 A 135 to 150 V 20000 A 0.72 V - 55 to 175 °C waveform VRRM range IFSM @ tp = 5 µs sine VF @ 240Apk, TJ=125°C TJ range 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 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 249NQ135 249NQ150 135 150 Max. DC Reverse Voltage (V) VRWM Max. Working Peak Reverse Voltage (V) Absolute Maximum Ratings Parameters 249NQ Units IF(AV) Max. Average Forward Current * See Fig. 5 IFSM 240 Max. Peak One Cycle Non-Repetitive 20000 Surge Current * See Fig. 7 2300 Conditions A 50% duty cycle @ TC = 117° C, rectangular wave form A Following any rated load condition and 10ms Sine or 6ms Rect. pulse with rated VRRM applied EAS Non-Repetitive Avalanche Energy 15 mJ IAR Repetitive Avalanche Current 1 A 5µs Sine or 3µs Rect. pulse TJ = 25 °C, IAS = 1 Amps, L = 30 mH Current decaying linearly to zero in 1 µsec Frequency limited by TJ max. VA = 1.5 x VR typical Electrical Specifications Parameters VFM 249NQ Units Max. Forward Voltage Drop (1) V @ 240A 1.27 V @ 480A 0.74 V @ 240A 0.86 V @ 480A Max. Reverse Leakage Current (1) 6 mA TJ = 25 °C * See Fig. 2 85 mA TJ = 125 °C * See Fig. 1 IRM Conditions 1.07 TJ = 25 °C TJ = 125 °C VR = rated VR CT Max. Junction Capacitance 6000 pF VR = 5VDC, (test signal range 100Khz to 1Mhz) 25 °C LS Typical Series Inductance 5.0 nH From top of terminal hole to mounting plane 10000 V/ µs dv/dt Max. Voltage Rate of Change (Rated VR) (1) Pulse Width < 300µs, Duty Cycle < 2% Thermal-Mechanical Specifications Parameters 249NQ Units TJ Max. Junction Temperature Range -55 to 175 Tstg Max. Storage Temperature Range Conditions °C -55 to 175 °C RthJC Max. Thermal Resistance Junction to Case 0.20 °C/W DC operation RthCS Typical Thermal Resistance, Case to 0.15 °C/W Mounting surface , smooth and greased * See Fig. 4 Heatsink wt Approximate Weight T Mounting Torque Terminal Torque Case Style 2 25.6 (0.9) g (oz.) Min. 40 (35) Max. 58 (50) Min. Max. 58 (50) 86 (75) Non-lubricated threads Kg-cm (Ibf-in) HALF PAK Module www.irf.com 249NQ...(R) Series Bulletin PD-20721 rev. A 06/02 1000 Reverse Current - IR (mA) 1000 TJ = 175˚C T = 175˚C J 150˚C 10 125˚C 100˚C 1 75˚C 0.1 50˚C 0.01 25˚C 0.001 0 TJ = 125˚C 30 60 90 120 150 Reverse Voltage - VR (V) Fig. 2 - Typical Values Of Reverse Current Vs. Reverse Voltage TJ = 25˚C 10000 Junction Capacitance - CT (pF) Instantaneous Forward Current - IF (A) 100 100 10 T = 25˚C J 1000 100 1 0 0.4 0.8 1.2 1.6 Forward Voltage Drop - VFM (V) 0 2 30 60 90 120 Reverse Voltage - VR (V) Fig. 3 - Typical Junction Capacitance Vs. Reverse Voltage Fig. 1 - Max. Forward Voltage Drop Characteristics Thermal Impedance ZthJC (°C/W) 1 0.1 D = 0.75 D = 0.50 D = 0.33 D = 0.25 D = 0.20 PDM t1 t2 0.01 Notes: Single Pulse (Thermal Resistance) 0.001 0.00001 0.0001 0.001 0.01 1. Duty factor D = t1 / t 2 2. Peak T J = P DM x Z thJC + T C 0.1 1 10 100 t1, Rectangular Pulse Duration (Seconds) Fig. 4 - Max. Thermal Impedance ZthJC Characteristics www.irf.com 3 249NQ...(R) Series 180 280 160 240 Average Power Loss - (Watts) Allowable Case Temperature - (°C) Bulletin PD-20721 rev. A 06/02 DC 140 120 100 Square wave (D = 0.50) Rated VR applied 80 D = 0.20 D = 0.25 D = 0.33 D = 0.50 D = 0.75 200 DC 160 RMS Limit 120 80 40 see note (2) 60 0 100 200 300 0 400 0 100 Average Forward Current - IF(AV) (A) Fig. 5 - Max. Allowable Case Temperature Vs. Average Forward Current Non-Repetitive Surge Current - IFSM (A) 200 300 400 Average Forward Current - IF(AV) (A) Fig. 6 - Forward Power Loss Characteristics 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 IRFP460 D UT Rg = 25 ohm C URRE NT M O N ITO R H IG H-SPE ED SW ITC H FR EE-W H E EL D IO D E + V d = 25 V olt 40H FL40 S02 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