Bulletin PD-20481 10/01 300CNQ... SERIES SCHOTTKY RECTIFIER 300 Amp TO-244AB Description/Features Major Ratings and Characteristics Characteristics IF(AV) Rectangular 300CNQ... Units 300 A 35 to 45 V 27000 A 150 °C TJ operation Center tap module 0.62 V High purity, high temperature epoxy encapsulation for enhanced mechanical strength and moisture resistance °C Low forward voltage drop High frequency operation waveform VRRM range IFSM @ tp = 5 µs sine VF TJ @ 150Apk, TJ=125°C (per leg) range - 55 to 150 80.01 [3.150] 40.26 [1.585] 39.75 [1.565] COMMON CATHODE 2X Ø 7.49 [.295] 6.99 [.275] Guard ring for enhanced ruggedness and long term reliability Ø 10.41 [.410] 9.65 [.380] 20.32 [.800] 17.78 [.700] 34.925 [1.375] REF. 63.50 [2.500] 60.96 [2.400] 23.55 [.927] 20.42 [.804] Ø LUG TERMINAL ANODE 1 LUG TERMINAL ANODE 2 4.95 [.195] 4.70 [.185] 1/4-20 SLOTTED HEX BASE COMMON CATHODE 15.75 [.620] 14.99 [.590] 92.71 [3.650] 90.17 [3.550] NOTES: 1. DIMENSIONS ARE SHOWN IN MILLIMETERS [INCHES]. 2. CONTROLLING DIMENSION: MILLIMETER www.irf.com The 300CNQ center tap Schottky rectifier module series has been optimized for low reverse leakage at high temperature. The proprietary barrier technology allows for reliable operation up to 150 °C junction temperature. Typical applications are in high current switching power supplies, plating power supplies, UPS systems, converters, free-wheeling diodes, welding, and reverse battery protection. 3.35 [.132] 3.02 [.119] Modified JEDEC Outline TO-244AB Dimensions in millimeters and (inches) 1 300CNQ... Series Bulletin PD-20481 10/01 Voltage Ratings Part number VR 300CNQ035 300CNQ040 300CNQ045 35 40 45 Max. DC Reverse Voltage (V) VRWM Max. Working Peak Reverse Voltage (V) Absolute Maximum Ratings Parameters IF(AV) Max. Average Forward Current IFSM EAS IAR * See Fig. 5 300CNQ Units (Per Leg) 150 (Per Device) 300 Conditions A 50% duty cycle @ TC = 104 °C, rectangular wave form A 5µs Sine or 3µs Rect. pulse Following any rated load condition and with 10ms Sine or 6ms Rect. pulse rated VRRM applied Max. Peak One Cycle Non-Repetitive 27000 Surge Current (Per Leg) * See Fig. 7 2400 Non-Repetitive Avalanche Energy (Per Leg) Repetitive Avalanche Current (Per Leg) 150 mJ 30 A TJ = 25 °C, IAS = 30 Amps, L = 0.67 mH Current decaying linearly to zero in 1 µsec Frequency limited by TJ max. VA = 1.5 x VR typical Electrical Specifications Parameters VFM Max. Forward Voltage Drop CT LS Conditions 0.61 V @ 150A 0.77 0.62 V V @ 300A @ 150A 0.75 V @ 300A Max. Reverse Leakage Current 15 mA TJ = 25 °C (Per Leg) * See Fig. 2 750 mA TJ = 125 °C 7750 6.0 pF nH VR = 5VDC, (test signal range 100Khz to 1Mhz) 25°C From top of terminal hole to mounting plane 10000 V/ µs (Per Leg) * See Fig. 1 IRM 300CNQ Units (1) (1) Max. Junction Capacitance (Per Leg) Typical Series Inductance (Per Leg) dv/dt Max. Voltage Rate of Change TJ = 25 °C TJ = 125 °C VR = rated VR (Rated VR) (1) Pulse Width < 300µs, Duty Cycle <2% Thermal-Mechanical Specifications Parameters 300CNQ Units TJ Max. Junction Temperature Range - 55 to 150 °C Tstg Max. Storage Temperature Range - 55 to 150 °C Conditions RthJC Max. Thermal Resistance Junction to Case (Per Leg) 0.30 °C/W DC operation RthJC Max. Thermal Resistance Junction to Case (Per Package) 0.15 °C/W DC operation RthCS Typical Thermal Resistance, Case to Heatsink 0.10 °C/W Mounting surface , smooth and greased wt Approximate Weight T Mounting Torque Base Mounting Torque Center Hole Terminal Torque Case Style 2 79 (2.80) Min. Max. Typ. Min. Max. * See Fig. 4 g (oz.) 24 (20) 35 (30) Kg-cm 13.5 (12) (Ibf-in) 35 (30) 46 (40) TO - 244AB Modified JEDEC www.irf.com 300CNQ... Series Bulletin PD-20481 10/01 10000 1000 Tj = 150˚C (A) F 100˚C 75˚C 10 50˚C 25˚C 1 0.1 0.01 0 5 10 15 20 25 30 35 40 45 Reverse Voltage - VR (V) Fig. 2 - Typical Values of Reverse Current Vs. Reverse Voltage 10000 (pF) Tj = 25˚C T 10 Junction Capacitance - C Instantaneous Forward Current - I 100 125˚C 100 Reverse Current - I R (mA) 1000 Tj = 150˚C Tj = 125˚C Tj = 25˚C 1 1000 0 0.2 0.4 0.6 0.8 1 Forward Voltage Drop - VFM (V) 1.2 1.4 0 5 10 15 20 25 30 35 40 45 Reverse Voltage - VR (V) Fig. 3 - Typical Junction Capacitance Vs. Reverse Voltage Fig. 1 - Maximum Forward Voltage Drop Characteristics Thermal Impedance Z thJC (°C/W) 1 0.1 D = 0.75 D = 0.50 D = 0.33 D = 0.25 D = 0.20 PDM t1 0.01 t2 Single Pulse (Thermal Resistance) Notes: 1. Duty factor D = t1/ t2 2. Peak Tj = Pdm x ZthJC + Tc 0.001 0.00001 0.0001 0.001 0.01 0.1 1 10 t1, Rectangular Pulse Duration (Seconds) Fig. 4 - Max. Thermal Impedance Z thJC Characteristics www.irf.com 3 300CNQ... Series Bulletin PD-20481 10/01 140 150 Average Power Loss (Watts) Allowable Case Temperature (°C) 160 140 DC 130 120 110 100 Square wave (D = 0.50) 90 80% Rated Vr applied 80 70 see note (2) 120 100 DC RMS Limit 80 D = 0.75 D = 0.50 D = 0.33 D = 0.25 D = 0.20 60 40 20 0 60 0 50 100 150 200 Average Forward Current - I F(AV) 0 250 50 150 200 F(AV) 250 (A) Fig. 6 - Forward Power Loss Characteristics Fig. 5 - Max. Allowable Case Temperature Vs. Average Forward Current (A) 100000 At Any Rated Load Condition And With Rated Vrrm Applied Following Surge FSM Non-Repetitive Surge Current - I 100 Average Forward Current - I (A) 10000 1000 10 100 1000 10000 Square Wave Pulse Duration - t p (microsec) Fig. 7 - Max. Non-Repetitive Surge Current (Per Leg) (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 = 80% rated VR 4 www.irf.com 300CNQ... Series Bulletin PD-20481 10/01 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. 10/01 www.irf.com 5 This datasheet has been download from: www.datasheetcatalog.com Datasheets for electronics components.