UG4A THRU UG4D ULTRAFAST EFFICIENT PLASTIC RECTIFIER Reverse Voltage – 50 to 200 V Forward Current – 4 A DO-201AD Features 0.052(1.32) 0.048(1.22) • Ultrafast recovery time for high efficiency • Soft recovery characteristics • Excellent high temperature switching 1.0 (25.4) MIN. 0.210(5.3) 0.190(4.8) • Glass passivated junction 0.375(9.5) Mechanical Data • Case: Molded plastic, DO-201AD • Terminals: Plated axial leads, solderable per MIL-STD-750, method 2026 • Polarity: Color band denotes cathode end • Mounting position: Any 0.285(7.2) 1.0 (25.4) MIN. Dimensions in inches and (millimeters) Absolute Maximum Ratings and Characteristics Ratings at 25 OC ambient temperature unless otherwise specified. Symbols UG4A UG4B UG4C UG4D Units Maximum Repetitive Peak Reverse Voltage VRRM 50 100 150 200 V Maximum RMS Voltage VRMS 35 70 105 140 V Maximum DC Blocking Voltage VDC 50 100 150 200 V Parameter Maximum Average Forward Rectified Current 0.375"(9.5 mm) Lead Length at TL = 75 OC Peak Forward Surge Current, 8.3 ms Single Half-sine-wave Superimposed on rated load (JEDEC method) at TL = 75 OC Maximum Forward Voltage at 4 A Maximum Reverse Current TA = 25 OC at Rated DC Blocking Voltage TA = 100 OC Maximum Reverse Recovery Time A IFSM 150 A VF 0.95 V trr TJ = 25 C O TJ = 100 OC Maximum Recovered stored charge Time 2) TJ = 25 OC TJ = 100 C O Typical Junction Capacitance 3) Typical Thermal Resistance 4 IR Maximum Reverse Recovery Time 1) 2) I(AV) 4) Operating Junction and Storage Temperature Range trr Qrr 5 µA 300 20 ns 30 ns 50 15 nC 30 CJ 20 pF RθJA 25 TJ, Tstg -55 to +150 C/W O 1) Reverse recovery test conditions: IF = 0.5 A, IR = 1 A, Irr = 0.25 A. trr and Qrr measured at tester: IF = 4 A, VR = 30 V, di/dt = 50 A/µs, Irr = 10% IRM for measurement of trr. 3) Measured at 1 MHz and applied reverse voltage of 4 V. 4) Thermal resistance from junction to ambient at 0.375" (9.5 mm) lead length. 2) SEMTECH ELECTRONICS LTD. (Subsidiary of Semtech International Holdings Limited, a company listed on the Hong Kong Stock Exchange, Stock Code: 724) R Dated : 26/04/2006 C C O UG4A THRU UG4D SEMTECH ELECTRONICS LTD. (Subsidiary of Semtech International Holdings Limited, a company listed on the Hong Kong Stock Exchange, Stock Code: 724) R Dated : 26/04/2006 C