Bulletin PD-036 05/05 40CTQ50SPbF 40CTQ50-PbF SCHOTTKY RECTIFIER 40 Amp I F(AV) = 40Amp V R = 50V Major Ratings and Characteristics Characteristics Values Units I F(AV) Rectangular 40 A waveform V RRM 50 V I FSM @ tp = 5 µs sine 500 A V F @ 0 Apk, T =5 C J 0.7 V (per leg) - 55 to 75 C Description/ Features The 40CTQ.. center tap Schottky rectifier has been optimized for very low forward voltage drop, with moderate leakage. The proprietary barrier technology allows for reliable operation up to 75 C junction temperature. Typical applications are in switching power supplies, converters, free-wheeling diodes, and reverse battery protection. 75 C operation Center tap TO-0 package High purity, high temperature epoxy encapsulation for enhanced mechanical strength and moisture resistance Very low forward voltage drop High frequency operation Guard ring for enhanced ruggedness and long term reliability Lead-Free ("PbF" suffix) Case Styles 40CTQ50SPbF 40CTQ50-PbF 3 D PAK 3 TO-6
Bulletin PD-036 05/05 Voltage Ratings V R Parameters Max. DC Reverse Voltage (V) V RWM Max. Working Peak Reverse Voltage (V) 40CTQ50SPbF, 40CTQ50-PbF 50 Absolute Maximum Ratings Parameters 40CTQ.. Units Conditions I F(AV) Max. Average Forward (Per Leg) 0 A 50% duty cycle @ T C = 40 C, rectangular wave form Current * See Fig. 5 (Per Device) 40 I FSM Max. Peak One Cycle Non-Repetitive 500 5µs Sine or 3µs Rect. pulse Following any rated A load condition and with Surge Current (Per Leg) * See Fig. 7 50 0ms Sine or 6ms Rect. pulse rated V applied RRM E AS Non-Repetitive Avalanche Energy.0 mj = 5 C, I AS =.5 Amps, L = 0.9 mh (Per Leg) I AR Repetitive Avalanche Current.5 A Current decaying linearly to zero in µsec (Per Leg) Frequency limited by max. V A =.5 x V R typical Electrical Specifications Parameters 40CTQ.. Units Conditions V FM Max. Forward Voltage Drop 0.93 V @ 0A (Per Leg) * See Fig. ().6 V @ 40A I RM Max. Reverse Leakage Current 50 µa = 5 C (Per Leg) * See Fig. () 5 ma = 5 C 0.7 V @ 0A 0.85 V @ 40A = 5 C = 5 C V R = rated V R C T Max. Junction Capacitance (Per Leg) 450 pf V R = 5V DC (test signal range 00Khz to Mhz) 5 C L S Typical Series Inductance (Per Leg) 8.0 nh Measured lead to lead 5mm from package body dv/dt Max. Voltage Rate of Change 0000 V/ µs (Rated V R ) Thermal-Mechanical Specifications Parameters 40CTQ.. Units Conditions () Pulse Width < 300µs, Duty Cycle <% Max. Junction Temperature Range -55 to 75 C T stg Max. Storage Temperature Range -55 to 75 C R thjc Max. Thermal Resistance Per Leg.5 C/W DC operation * See Fig. 4 Junction to Case R thjc Max. Thermal Resistance Per Package 0.75 C/W DC operation Junction to Case R thcs Typical Thermal Resistance, 0.5 C/W Mounting surface, smooth and greased Case to Heatsink wt Approximate Weight (0.07) g (oz.) T Mounting Torque Min. 6 (5) Kg-cm Non-lubricated threads Max. (0) (Ibf-in) Marking Device 40CTQ50S Case style D Pak 40CTQ50- Case style TO-6
Bulletin PD-036 05/05 00 000 Instantaneous Forward Current - I F (A) 0 Tj = 75 C Tj = 5 C Tj = 5 C Reverse Current - I R (ma) Junction Capacitance - C T (pf) 00 0 0. 0.0 0.00 0 0 40 60 80 00 0 40 60 Reverse Voltage - V R (V) 000 Fig. - Typical Values of Reverse Current Vs. Reverse Voltage 00 T = 5 C J Tj = 75 C 50 C 5 C 00 C 75 C 50 C 5 C 0 0.4 0.8..6 Forward Voltage Drop - V FM (V) Fig. - Maximum Forward Voltage Drop Characteristics 0 0 0 40 80 0 60 Reverse Voltage - V R (V) Fig. 3 - Typical Junction Capacitance Vs. Reverse Voltage Thermal Impedance Z thjc ( C/W) 0. D = 0.75 D = 0.50 D = 0.33 D = 0.5 D = 0.0 Single Pulse (Thermal Resistance) 0.0 0.0000 0.000 0.00 0.0 0. 0 00 t, Rectangular Pulse Duration (Seconds) P DM t t Notes:. Duty factor D = t/ t. Peak Tj = Pdmx ZthJC + Tc Fig. 4 - Max. Thermal Impedance Z thjc Characteristics 3
Bulletin PD-036 05/05 80 5 Allowable Case Temperature ( C) 60 40 0 Square wave (D = 0.50) 80% Vr applied see note () DC 00 0 5 0 5 0 5 30 Average Forward Current - IF (A) (AV) Fig. 5 - Max. Allowable Case Temperature Vs. Average Forward Current Average Power Loss ( Watts ) 0 5 0 5 RMS Limit DC DC = 0.0 DC = 0.5 DC = 0.33 DC = 0.50 DC = 0.75 0 0 5 0 5 0 5 30 Average Forward Current - IF (AV) (A) Fig. 6 - Forward Power Loss Characteristics Non-Repetitive Surge Current - I FSM (A) 0000 000 At Any Rated Load Condition And With Rated Vrrm Applied Following Surge 00 0 00 000 0000 Square Wave Pulse Duration - t p (microsec) Fig. 7 - Max. Non-Repetitive Surge Current (Per Leg) () Formula used: T C = - (Pd + Pd REV ) x R thjc ; Pd = Forward Power Loss = I F(AV) x V FM @ (I F(AV) / D) (see Fig. 6); Pd REV = Inverse Power Loss = V R x I R ( - D); I R @ V R = 80% V R applied 4
Bulletin PD-036 05/05 Outline Table 3 Conform to JEDEC outline D Pak (SMD-0) Dimensions in millimeters and (inches) Modified JEDEC outline TO-6 Dimensions in millimeters and (inches) 3 5
Bulletin PD-036 05/05 Part Marking Information D PAK THIS IS A 40CTQ50S LOT CODE 804 ASSEMBLED ON WW 0, 000 INTERNATIONAL RECTIFIER LOGO ASSEMBLY LOT CODE 40CTQ50S PART NUMBER DATE CODE YEAR 0 = 000 WEEK 0 P = LEAD-FREE EXAMPLE: TO-6 THIS IS A 40CTQ50- LOT CODE 789 ASSEMBLED ON WW 9, 00 INTERNATIONAL RECTIFIER LOGO ASSEMBLY LOT CODE PART NUMBER DATE CODE YEAR = 00 WEEK 9 P = LEAD-FREE Tape & Reel Information TRR FEED DIRECTION TRL.85 (0.073).65 (0.065).60 (0.063).50 (0.059) 4.0 (0.6) 3.90 (0.53).60 (0.063) DIA..50 (0.059).60 (0.457).40 (0.449) 5.4 (0.609) 5. (0.60) 0.368 (0.045) 0.34 (0.035) 4.30 (0.957) 3.90 (0.94).75 (0.069) DIA. 0.90 (0.49).5 (0.049) 0.70 (0.4) 6.0 (0.634) 5.90 (0.66) 4.7 (0.86) 4.5 (0.78) FEED DIRECTION 3.50 (0.53).80 (0.504) DIA. 6.40 (.039) 4.40 (0.96) 360 (4.73) DIA. MAX. 60 (.36) DIA. MIN. SMD-0 Tape & Reel When ordering, indicate the part number, part orientation, and the quantity. Quantities are in multiples of 800 pieces per reel for both TRL and TRR. Dimensions in millimeters and (inches) 6
Bulletin PD-036 05/05 Ordering Information Table Device Code 40 C T Q 50 S TRL PbF 3 4 5 6 7 8 - Current Rating (40A) - Circuit Configuration C = 3 - T = TO-0 4 - Schottky "Q" Series 5 - Voltage Rating (50 = 50V) 6 - S = D Pak -= TO-6 7 - none = Tube (50 pieces) TRL = Tape & Reel (Left Oriented - for D Pak only) TRR = Tape & Reel (Right Oriented - for D Pak only) 8 - none = Standard Production PbF = Lead-Free Data and specifications subject to change without notice. This product has been designed and qualified for Industrial Level and Lead-Free. Qualification Standards can be found on IR's Web site. IR WORLD HEADQUARTERS: 33 Kansas St., El Segundo, California 9045, USA Tel: (30) 5-705 TAC Fax: (30) 5-7309 Visit us at for sales contact information. 05/05 7