COMCHIP Schottky Barrier Rectifier SMD Diodes Specialist SR502-G Thru. SR508-G Forward current: 5.0A Reverse voltage: 20 to 80V RoHS Device Features DO-27 -Fast switching. -Low forward voltage, high current capability. 0.052(1.30) 0.048(1.20) -Low power loss, high efficiency. 1.0(25.4) min. -High current surge capability. -High temperature soldering guaranteed: 250 OC/10 seconds, 0.375” (9.5mm) lead length at 5lbs (2.3kg) tension. 0.375(9.50) 0.335(8.50) Mechanical Data 0.220(5.60) -Case: transfer molded plastic. 0.197(5.00) -Epoxy: UL94V-0 rate flame retardant. 1.0(25.4) min. -Polarity: color band denoted cathode end. -Lead: plastic axial lead, solderable per MIL-STD202E, method 208C. -Mounting position: any. Dimensions in inches and (millimeter) -Weight: 0.042 ounce, 1.19 gram. Maximum Ratings and Electrical Characteristics O At Ta=25 C unless otherwise noted. Single phase, half wave, 60Hz, resistive or inductive loaded. For capacitive load, derate current by 20% . Symbol SR502 SR503 SR504 SR505 SR506 SR508 Parameter -G -G -G -G -G -G Unit Maximum repetitive peak reverse voltage V RRM 20 30 40 50 60 80 V Maximum RMS voltage V RMS 14 21 28 35 42 57 V Maximum DC blocking voltage V DC 20 30 40 50 60 80 V Maximum average forward TL=60 OC (SR502-G ~ SR504-G) rectified current, 0.375” O TL=80 C (SR505-G ~ SR508-G) (9.5mm) lead length at I AV 5.0 A Peak forward surge current, 8.3ms single half sinewave, superimposed on rated load (JEDEC method) I FSM 150 A Maximum instantaneous forward voltage at I F =5.0A VF Maximum DC reverse current at rated DC blocking voltage (Note 1) Typical junction capacitance (Note 2) Typical thermal resistance (Note 3) Operating junction temperature range Storage temperature range T A =25 OC T A =100 OC 550 T STG pF 450 -65 ~ +125 Note: 1. Test pulse: 300μS pulse width, 1% duty cycle. 2. Measured at 1MHz and applied reverse voltage of 4.0V. 3. Thermal resistance from junction to ambient P.C.B. mounted with 0.375" (9.5mm) lead length with 2.5"×2.5"(63.5×63.5mm) copper pads. QW-BB017 V mA 25 RθJA TJ 0.80 5.0 50 IR CJ 0.70 0.57 O -65 ~ +150 -65 ~ +150 C/W O C O C REV:A Page 1 COMCHIP Schottky Barrier Rectifier SMD Diodes Specialist RATING AND CHARACTERISTIC CURVES (SR502-G Thru. SR508-G) Fig.2 Maximum Non-Repetitive Peak Forward Surge Current I FSM , Peak Forward Surge Current (A) Fig.1 Typical Forward Current Derating Curve 5 SR 4 50 G 50 5- SR ~S 2- 3 04 -G R5 08 ~S R5 G 2 -G I AV , Average Forward Current (A) 6 1 Single phase, half wave 60Hz Inductive or resistive load 0.375" (9.5mm) lead length 0 8.3ms single half sine-wave (JEDEC method) 150 100 50 1 Cycle 0 0 50 25 75 100 125 150 175 1 10 T L , Lead Temperature ( OC) Fig.4 Typical Reverse Characteristics I R , Instantaneous Reverse Voltage (mA) I F , Instantaneous Forward Current (A) Fig.3 Typical Instantaneous Forward Characteristics 100 SR502-G~SR504-G SR505-G~SR508-G 10 1 0.1 T J =25 OC Pulse width=300μs 1% duty cycle 0.01 0 0.2 0.4 0.6 0.8 1.0 100 Number of Cycles at 60Hz 1.2 1.4 V F , Instantaneous Forward Voltage (V) SR502-G~SR504-G SR505-G~SR508-G 1.0 T J =125 O 0.1 O T J =75 C 0.01 T J =25 OC 0.001 0 20 40 60 80 100 120 140 Percent of Rated Peak Reverse Voltage (%) Fig.5 Typical Junction Capacitance C J , Junction Capacitance (pF) 10000 O T J =25 C f=1MHz V sig =50mV SR502-G~SR504-G SR505-G~SR508-G 1000 100 0.1 1 10 100 V R , Reverse Voltage (V) REV:A QW-BB017 Page 2