SD930 / SD940 / SD945 HIGH CURRENT SCHOTTKY BARRIER RECTIFIER Features · · · · · High Current Capability and Low Forward Drop High Surge Capacity Guard Ring for Transient Protection Low Power Loss, High Efficiency Plastic Package - UL Flammability Classification 94V-0 B A · · · C D DO-201AD Mechanical Data · · A Case: DO-201AD, Molded Plastic Leads: Solderable per MIL-STD-202, Method 208 Polarity: Cathode band Approx. Weight: 1.1 grams Mounting Position: Any Dim Min Max A 25.40 — B 7.20 9.50 C 1.20 1.30 D 4.80 5.30 All Dimensions in mm Maximum Ratings and Electrical Characteristics @ TA = 25°C unless otherwise specified Single phase, half wave, 60Hz, resistive or inductive load. For capacitive load, derate current by 20%. Characteristic Peak Repetitive Reverse Voltage Working Peak Reverse Voltage DC Blocking Voltage Maximum Average Forward Current (Note 2) SD940 SD945 Unit 30 40 45 V 9.0 A @ 5µs Sine Wave @ 10ms Sine Wave IFSM 2150 340 A @ IF = 9.0A, TJ = 25°C @ IF = 9.0A, TJ = 125°C @ IF = 18A, TJ = 25°C @ IF = 18A, TJ = 125°C VFM 0.48 0.42 0.57 0.52 V dv/dt 10,000 V/µs IRM 0.8 70 mA Voltage Rate of Change Peak Reverse Current at Rated DC Blocking Voltage (Note 1) @TJ = 25°C @ TJ = 125°C Maximum Junction Capacitance (Note 2) Typical Thermal Resistance Junction to Case (Note 4) Operating and Storage Temperature Range Notes: SD930 VRRM VRWM VR IO Maximum Peak One-Cycle Surge Current Forward Voltage (Note 1) @ TC = 120°C Symbol Cj 900 pF RqJL 8.0 K/W Tj, TSTG -65 to +150 °C 1. Pulse width £ µs - Duty Cycle £ 2%. 2. Measured at 1.0MHz and applied reverse voltage of 4.0V. 3. Device mounted to heat sink with 1/8" lead length. 4. Thermal Resistance from Junction to Lead Vertical PC Board Mounting, 9.5mm Lead Length. DS23026 Rev. C-2 1 of 3 SD930/SD940/SD945 50 IF, INSTANTANEOUS FWD CURRENT (A) IO, AVERAGE RECTIFIED CURRENT (A) 10 8 6 4 2 0 TJ = 125°C 10 TJ = 25°C 1.0 Pulse width = 300µs 2% duty cycle 0.1 0 50 100 0.2 150 TC, CASE TEMPERATURE (°C) Fig. 1 Fwd Current Derating Curve 4000 PEAK FORWARD SURGE CURRENT (A) TJ = 25°C Cj, CAPACITANCE (pF) f = 1MHz 1000 100 1.0 0.1 10 100 VR, REVERSE VOLTAGE (V) Fig. 3 Maximum Junction Capacitance DS23026 Rev. C-2 0.4 0.6 0.8 1.0 VF, INSTANTANEOUS FWD VOLTAGE (V) Fig. 2 Typical Forward Characteristics 2 of 3 10000 1000 1 10 100 1000 10000 tp, PULSE DURATION (ms) Fig. 4, Maximum Non-repetitive Surge Current SD930/SD940/SD945 THERMAL RESISTANCE RQJL (K/W) 10 D = 0.50 0.33 1.0 0.25 0.17 0.08 P(DM) 0.1 t1 t2 Duty Cycle, D = t1 / t2 Peak TJ = PDM X RQJL + TC Single Pulse 0.01 0.0001 0.001 0.01 0.1 1.0 10 100 IR, INSTANTANEOUS REVERSE CURRENT (mA) t1, RECTANGULAR PULSE DURATION (seconds) Fig. 5, Typical Thermal Resistance RQJL 100 Tj = 125ºC 10 Tj = 85ºC 1.0 0.1 Tj = 25ºC 0.01 0 20 40 60 80 100 120 140 PERCENT OF RATED PEAK REVERSE VOLTAGE (%) Fig. 6, Typical IR vs. % of VR DS23026 Rev. C-2 3 of 3 SD930/SD940/SD945