SMD Moulded Power Resistor Type SM Series Key Features Low Profile Design Available on Tape Very Wide Value Range Ideal for Power Circuitry Available in 2,3 or 5 Watts Flameproof Coating UL94V0 TE Connectivity (TE) introduces a surface mount power resistor suited to meet today's circuit design needs. Each size offers low profile case design with flexible tinned copper terminations for reliable solder joints. All styles utilize a fully welded construction technique, unlike other designs that rely solely on tinned termination onnections. These features allow the SM Series to withstand the higher temperatures associated with reflow, vapour phase, or infrared (IR) manufacturing processes without degradation. Characteristics - Electrical SM (Wire) SM (Metal Film) Values SM_2: R10 - 200R 201R - 2M Values SM_3: R10 - 300R 301R - 2M Values SM_5: R10 - 500R 501R - 2M Value Grid: E24 Resistance Tolerance: 1% or 5% Power Rating @ 25C SM_2: 2.0 Watts Power Rating @ 25C SM_3: 3.0 Watts Power Rating @ 25C SM_5: 5.0 Watts Derating: See Curve Below Max Operating Voltage SM_2: 300 Volts Max Operating Voltage SM_3: 500 Volts Max Operating Voltage SM_5: 500 Volts Characteristics - Environmental 1773242 CIS WR 04/2012 Test Condition SM (Wire) SM (Metal Film) Temperature Coefficient of Resistance: -55C - +200C 200ppm /C 100ppm /C Short Time Overload: 5 times of rated wattage for 5 sec. 1% 0.5% Rated Load: Rated voltage for 30 minutes 1% 0.5% Insulation Resistance: 500VDC 10,000 M 10,000 M Load Life: 70C 1.5 hrs on 0.5 hrs off for 1000 hrs 2% 1% Humidity Load Life: 40C 2C @ 90-95% RH 500 hrs 1.5 hrs on 0.5 hrs off 2% 1% Voltage Withstand: 500VAC for 60 seconds No Physical damage Solderability: 235C 5C for 2 seconds 95% coverage Resistance to Soldering Heat: 270C 5C for 10 1seconds Resistance value change within 1% Dimensions are in millimeters and inches unless otherwise specified. Values in brackets are standard equivalents. Dimensions are shown for reference purposes only. Specifications subject to change. For email, phone or live chat, go to: te.com/help SMD Moulded Power Resistor Type SM Series Power Derating Rated Load (%) 100 75 50 25 0 -80 -50 -40 0 20 40 80 120 160 200 240 280 Ambient Temperature (C) Maximum Allowable Body Temperature Temperature Rise (C) 250 SMW5W 220C 200 SMW3W 160C SMW2W 135C 150 100 50 0 0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 Power (W) Dimensions 1773242 CIS WR 04/2012 A 0.3 B 0.3 C 0.3 D 0.3 E max F0.3 SM_2 4.0 6.7 1.4 3.55 7.9 1.5 2000 SM_3 5.5 10.5 1.7 5.0 12.0 2.3 1000 SM_5 7.3 13.5 1.7 6.8 17.0 2.5 1000 Dimensions are in millimeters and inches unless otherwise specified. Values in brackets are standard equivalents. Dimensions are shown for reference purposes only. Specifications subject to change. Qty Per Reel For email, phone or live chat, go to: te.com/help SMD Moulded Power Resistor Type SM Series Recommended Pad Dimensions W Nom. H Nom. L Nom. SM_2 2.6 2.9 2.8 SM_3 4.0 3.4 6.0 SM_5 4.5 3.4 11.0 How to Order SMW 2 1R0 F T Common Part Case Size Resistance Value Tolerance Pack Style 2 - 2 Watts SMW - Wirewound 3 - 3 Watts SMF - Metal Film 5 - 5 Watts 0.1 ohm (100 milli ohms) R10 1 ohm (1000 milli ohms) 1R0 100 ohm (100 ohms) 100R 1K ohm (1000 ohms) 1K0 100K ohm (100,000 ohms) 100K J - 5% T - Taped F - 1% TE Connectivity, TE connectivity (logo) and TE (logo) are trademarks. Other logos, product and Company names mentioned herein may be trademarks of their respective owners. While TE has made every reasonable effort to ensure the accuracy of the information in this datasheet, TE does not guarantee that it is error-free, nor does TE make any other representation, warranty or guarantee that the information is accurate, correct, reliable or current. TE reserves the right to make any adjustments to the information contained herein at any time without notice. TE expressly disclaims all implied warranties regarding the information contained herein, including, but not limited to, any implied warranties of merchantability or fitness for a particular purpose. The dimensions in this datasheet are for reference purposes only and are subject to change without notice. Specifications are subject to change without notice. Consult TE for the latest dimensions and design specifications. Mouser Electronics Authorized Distributor Click to View Pricing, Inventory, Delivery & Lifecycle Information: TE Connectivity: SMF51M1JT