PD -94298A 35CGQ045 SCHOTTKY RECTIFIER HIGH EFFICIENCY SERIES 35 Amp, 45V Major Ratings and Characteristics Characteristics Description/Features The 35CGQ045 center tap Schottky rectifier has been expressly designed to meet the rigorous requirements of hirel environments. It is packaged in the hermetic isolated TO-254AA package. The device's forward voltage drop and reverse leakage current are optimized for the lowest power loss and the highest circuit efficiency for typical high frequency switching power supplies and resonent power converters. Full MIL-PRF-19500 quality conformance testing is available on source control drawings to TX, TXV and S quality levels. 35CGQ045 Units IF(AV) 35 A VRRM (Per Leg) 45 V IFSM @ tp = 8.3ms half-sine (Per Leg) 200 A VF @ 35Apk, TJ =125°C (Per Leg) 0.94 V TJ, Tstg Operating and storage -55 to 150 • • • • • Hermetically Sealed Center Tap Low Forward Voltage Drop High Frequency Operation Guard Ring for Enhanced Ruggedness and Long term Reliability • Lightweight °C 0.12 [.005] CASE STYLE 6.60 [.260] 6.32 [.249] 13.84 [.545] 13.59 [.535] 3.78 [.149] 3.53 [.139] 1.27 [.050] 1.02 [.040] A 20.32 [.800] 20.07 [.790] 17.40 [.685] 16.89 [.665] 1 C 2 3 17.40 [.685] 16.89 [.665] 3X 3.81 [.150] 0.84 [.033] MAX. 1.14 [.045] 0.89 [.035] 0.36 [.014] 2X B 13.84 [.545] 13.59 [.535] 3.81 [.150] B A NOTES : 1. 2. 3. 4. DIMENS IONING & T OLE RANCING PER AS ME Y14.5M-1994. AL L DIMENS IONS ARE S HOWN IN MILLIMETERS [INCHES ]. CONT ROL LING DIMENS ION: INCH. CONF ORMS TO JEDE C OUTLINE T O-254AA. 1 2 3 ANODE COMMON ANODE CATHODE IR Case Style TO-254AA www.irf.com 1 10/04/01 35CGQ045 Voltage Ratings Part number VR 35CGQ045 Max. DC Reverse Voltage (V) (Per Leg) 45 VRWM Max. Working Peak Reverse Voltage (V) (Per Leg) Absolute Maximum Ratings Parameters IF(AV) Max. Average Forward Current Limits Units 35 A 50% duty cycle @ TC = 114 °C, square waveform Conditions 200 A @ tp = 8.3 ms half-sine Limits Units 0.71 V @ 17.5A 0.88 V @ 35A See Fig. 5 IFSM Max. Peak One Cycle Non - Repetitive Surge Current (Per Leg) Electrical Specifications Parameters VFM Max. Forward Voltage Drop (Per Leg) See Fig. 1Q I RM Conditions 0.68 V @ 17.5A 0.92 V @ 35A TJ = -55°C TJ = 25°C 0.65 V @ 17.5A 0.94 V @ 35A Max. Reverse Leakage Current 0.1 mA (Per Leg) See Fig. 2Q 7.0 mA TJ = 100°C 26 mA TJ = 125°C VR = 5VDC ( 1MHz, 25°C ) CT Max. Junction Capacitance (Per Leg) 1320 pF LS Typical Series Inductance (Per Leg) 7.8 nH TJ = 125°C TJ = 25°C VR = rated VR Measured from anode lead to cathode lead 6mm ( 0.025 in.) from package Thermal-Mechanical Specifications Parameters Limits Units Conditions TJ Max.Junction Temperature Range -55 to 150 Tstg Max. Storage Temperature Range -55 to 150 °C 1.4 °C/W DC operation 0.7 °C/W DC operation RthJC Max. Thermal Resistance, Junction °C See Fig. 4 to Case (Per Leg) RthJC Max. Thermal Resistance, Junction to Case (Per Package) wt Weight (Typical) Die Size (Typical) Case Style 9.3 170X115 g mils TO-254AA Q Pulse Width < 300µs, Duty Cycle < 2% 2 www.irf.com 35CGQ045 100 125°C Reverse Current - I R ( mA ) 10 100 100°C 1 75°C 0.1 0.01 25°C 0.001 0.0001 0 10 20 30 40 50 Fig. 2 - Typical Values of Reverse Current Vs. Reverse Voltage (Per Leg) 10 10000 Tj = 125°C Tj = 25°C Tj = -55°C 1 0.0 0.2 0.4 0.6 0.8 1.0 Junction Capacitance - CT (pF) Instantaneous Forward Current - I F (A) Reverse Voltage - V R (V) T J = 25°C 1000 Forward Voltage Drop - V F (V) 100 0 Fig. 1 - Max. Forward Voltage Drop Characteristics (Per Leg) 10 20 30 40 50 Reverse Voltage -VR (V) Fig. 3 - Typical Junction Capacitance Vs. Reverse Voltage (Per Leg) www.irf.com 3 35CGQ045 Thermal Response (Z thJC ) 10 1 D = 0.50 0.20 0.10 0.1 0.01 0.00001 P DM 0.05 0.02 0.01 t1 t2 Notes: 1. Duty factor D = t 1 / t 2 2. Peak TJ = P DM x ZthJC + TC SINGLE PULSE (THERMAL RESPONSE) 0.0001 0.001 0.01 0.1 1 10 t1 , Rectangular Pulse Duration (sec) Fig. 4 - Max. Thermal Impedance ZthJC Characteristics (Per Leg) Allowable Case Temprature - (°C) 180 35CGQ045 160 R thJC = 0.7°C/W 140 120 DC 100 80 60 40 20 0 0 10 20 30 40 50 60 Average Forward Current - I F(AV) (A) Fig. 5 - Max. Allowable Case Temperature Vs. Average Forward Current IR WORLD HEADQUARTERS: 233 Kansas St., El Segundo, California 90245, USA Tel: (310) 252-7105 TAC Fax: (310) 252-7903 Visit us at www.irf.com for sales contact information. Data and specifications subject to change without notice. 10/01 4 www.irf.com