SDM20U40 SURFACE MOUNT SCHOTTKY BARRIER DIODE Features · · · · · Low Forward Voltage Drop Guard Ring Construction for Transient Protection Negligible Reverse Recovery Time Low Reverse Capacitance Ultra-Small Surface Mount Package CATHODE MARK · · · · · B · · A Mechanical Data Case: SOD-523, Molded Plastic Case material - UL Flammability Rating MARKING CODE Classification 94V-0 Moisture sensitivity: Level 1 per J-STD-020A Terminals: Finish - Matte Tin (Note 1) Solderable per MIL-STD-202, Method 208 Polarity: Cathode Band Marking Code: S4 Weight: 0.002 grams (approx.) Maximum Ratings S4 NEW PRODUCT SPICE MODEL: SDM20U40 E C D SOD-523 Dim Min Max A 1.50 1.70 B 1.10 1.30 C 0.25 0.35 D 0.70 0.90 E 0.10 0.20 G 0.50 0.70 All Dimensions in mm G @ TA = 25°C unless otherwise specified Characteristic Peak Repetitive Reverse Voltage Working Peak Reverse Voltage DC Blocking Voltage RMS Reverse Voltage Value Unit VRRM VRWM VR 40 V VR(RMS) 28 V 250 mA IFM Forward Continuous Current (Note 2) Non-Repetitive Peak Forward Surge Current @ t £ 1.0s Power Dissipation (Note 2) Thermal Resistance, Junction to Ambient Air (Note 2) Operating and Storage Temperature Range Electrical Characteristics Symbol IFSM 1.0 A Pd 150 mW RqJA 667 °C/W Tj, TSTG -65 to +125 °C @ TA = 25°C unless otherwise specified Characteristic Reverse Breakdown Voltage (Note 3) Symbol Min Typ Max Unit V(BR)R 40 Test Conditions ¾ ¾ V IR = 10mA V IF = 20mA IF = 200mA Forward Voltage Drop VF ¾ ¾ 0.37 0.60 Peak Reverse Current (Note 3) IR ¾ ¾ 5 1 mA mA VR = 30V VR = 10V Total Capacitance CT ¾ 50 ¾ pF VR = 0V, f = 1.0MHz Reverse Recovery Time trr ¾ 10 ¾ ns IF = IR = 200mA, Irr = 0.1 x IR, RL = 100W Ordering Information Note: (Note 4) Device Packaging Shipping SDM20U40-7 SOD-523 3000/Tape & Reel 1. If lead-bearing terminal plating is required, please contact your Diodes Inc. sales representative for availability and minimum order details. 2. Part mounted on FR-4 board with recommended pad layout, which can be found on our website at http://www.diodes.com/datasheets/ap02001.pdf. 3. Short duration pulse test used so as to minimize self-heating effect. 4. For Packaging Details, go to our website at http://www.diodes.com/datasheets/ap02007.pdf. DS30393 Rev. 1 - 2 1 of 2 www.diodes.com SDM20U40 ã Diodes Incorporated IF, INSTANTANEOUS FORWARD CURRENT (mA) PD, POWER DISSIPATION (mW) 150 100 50 0 0 25 75 50 1000 100 TA = 125°C 10 TA = 75°C 1 TA = 25°C 0.1 0.01 TA = -25°C 0.001 125 100 0 200 400 800 600 VF, INSTANTANEOUS FORWARD VOLTAGE (mV) Fig. 2 Typical Forward Characteristics TA, AMBIENT TEMPERATURE (°C) Fig. 1 Derating Curve 100 1000 f = 1MHz TA = 125°C CT, TOTAL CAPACITANCE (pF) NEW PRODUCT 200 100 TA = 75°C 10 1 TA = 25°C 0.1 TA = -25°C 0.01 0.001 1 10 20 30 40 10 1.0 0.1 0 VR, INSTANTANEOUS REVERSE VOLTAGE (V) Fig. 3 Typical Reverse Characteristics DS30393 Rev. 1 - 2 2 of 2 www.diodes.com 10 20 30 40 VR, REVERSE VOLTAGE (V) Fig. 4 Typ. Total Capacitance vs Reverse Voltage SDM20U40