Bulletin PD-20638 rev. A 12/01 61CTQ045 60 Amp SCHOTTKY RECTIFIER Description/Features Major Ratings and Characteristics Characteristics This center tap Schottky rectifier 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, free-wheeling diodes, and reverse battery protection. Values Units 60 A IFRM @ TC = 142°C (Per Leg) 60 A VRRM 45 V IFSM @ tp = 5 µs sine 2600 A VF @ 30 Apk, TJ = 125°C 0.57 V High frequency operation TJ range - 65 to 175 °C Guard ring for enhanced ruggedness and long term reliability IF(AV) Rectangular waveform (Per Device) 175° C TJ operation Center tap TO-220 package Low forward voltage drop High purity, high temperature epoxy encapsulation for enhanced mechanical strength and moisture resistance Case Styles 61CTQ045 Base Common Cathode 2 1 Anode 2 Common Cathode 3 Anode TO-220 www.irf.com 1 61CTQ045 Bulletin PD-20638 rev. A 12/01 Voltage Ratings Parameters VR 61CTQ045 Max. DC Reverse Voltage (V) 45 VRWM Max. Working Peak Reverse Voltage (V) Absolute Maximum Ratings Parameters Values IF(AV) Max. Average Forward (Per Leg) Current (Per Device) IFRM Peak Repetitive Forward Current (Per Leg) IFSM Max.Peak One Cycle Non -Repetitive Surge Current (Per Leg) EAS Non -Repetitive Avalanche Energy (Per Leg) Repetitive Avalanche Current (Per Leg) IAR Units Conditions 30 60 60 A @ TC = 142° C, (Rated VR) A Rated VR, square wave, 20kHz TC = 142° C 2600 350 A Following any rated load 5µs Sine or 3µs Rect. pulse condition and with rated 10ms Sine or 6ms Rect. pulse VRRM applied 27 mJ 4 A TJ = 25°C, IAS = 4Amps, L = 3.4mH Current decaying linearty to zero in 1 µsec Frequency limited by T J max. VA = 1.5 x VR typical Electrical Specifications VFM Parameters Typ. Max. Units Conditions Max. Forward Voltage Drop 0.57 (1) IRM Max. Instantaneus Reverse Current 0.61 V @ 30A 0.72 0.76 V @ 60A 0.53 0.57 V @ 30A 0.70 0.74 V @ 60A 0.06 1 mA TJ = 25 °C 21 40 mA TJ = 125 °C TJ = 25 °C TJ = 125 °C Rated DC voltage CT Max. Junction Capacitance 1900 pF VR = 5VDC (test signal range 100Khz to 1Mhz) 25°C LS Typical Series Inductance 8.0 nH Measured from top of terminal 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 Values Units Conditions TJ Max. Junction Temperature Range -65 to 175 Tstg Max. Storage Temperature Range -65 to 175 °C RthJC Max. Thermal Resistance Junction to Case (Per Leg) 1.2 °C/W DC operation RthCS Typical Thermal Resistance Case to Heatsink 0.50 °C/W Mounting surface, smooth and greased wt Approximate Weight T Mounting Torque 2 2 (0.07) Min. 6 (5) Max. 12 (10) °C g (oz.) Kg-cm Non-lubricated threads (Ibf-in) www.irf.com 61CTQ045 Bulletin PD-20638 rev. A 12/01 1000 1000 100 150˚C 125˚C 10 100˚C 75˚C 1 50˚C 0.1 25˚C 0.01 0.001 0 10 20 30 40 50 Reverse Voltage - VR (V) Fig. 2 - Typical Values of Reverse Current Vs. Reverse Voltage 10000 (pF) T = 25˚C J T 10 Tj = 175˚C Junction Capacitance - C Instantaneous Forward Current - I F (A) Reverse Current - I R (mA) Tj = 175˚C 100 Tj = 125˚C Tj = 25˚C 1000 1 100 0 0.2 0.4 0.6 0.8 1 1.2 1.4 0 Forward Voltage Drop - VFM (V) 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 thJC (°C/W) 10 Thermal Impedance Z 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 61CTQ045 Bulletin PD-20638 rev. A 12/01 30 160 Average Power Loss (Watts) Allowable Case Temperature (°C) 180 DC 140 Square wave (d=0.5) 80% rated Vr applied 120 D = 0.20 D = 0.25 25 D = 0.33 D = 0.50 20 D = 0.75 RMS Limit 15 DC 10 5 see note (2) 100 0 0 5 10 15 20 25 30 35 40 45 Average Forward Current - I F(AV) 0 (A) Fig. 5 - Max. Allowable Case Temperature Vs. Average Forward Current (A) 10000 At Any Rated Load Condition And With Rated Vrrm Applied Following Surge FSM Non-Repetitive Surge Current - I 5 10 15 20 25 30 35 40 45 Average Forward Current - I F(AV) (A) Fig. 6 - Forward Power Loss Characteristics 1000 100 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 61CTQ045 Bulletin PD-20638 rev. A 12/01 Outline Table 10.54 (0.41) MAX. 3.78 (0.15) 3.54 (0.14) 1.32 (0.05) 1.22 (0.05) DIA. 6.48 (0.25) 6.23 (0.24) 2.92 (0.11) 2.54 (0.10) TERM 2 15.24 (0.60) 14.84 (0.58) 2° 1 2 3 14.09 (0.55) 3.96 (0.16) 13.47 (0.53) 3.55 (0.14) 0.10 (0.004) 2.04 (0.080) MAX. 1.40 (0.05) Base Common Cathode 2.89 (0.11) 1.15 (0.04) 2.64 (0.10) 0.94 (0.04) 2 0.69 (0.03) 1 2 3 0.61 (0.02) MAX. 4.57 (0.18) 1 4.32 (0.17) Anode 2 Common Cathode 3 Anode 5.08 (0.20) REF. Conform to JEDEC outline TO-220AB Dimensions in millimeters and (inches) Ordering Information Table Device Code www.irf.com 61 C T Q 045 1 2 3 4 5 1 - Essential Part Number 2 - Common Cathode 3 - T = TO-220 4 - Q = Schottky Q Series 5 - Voltage Rating 045 = 45V 5 61CTQ045 Bulletin PD-20638 rev. A 12/01 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. 12/01 6 www.irf.com