SMF312KJT TE Connectivity

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 TEConnectivity(TE)introducesasurfacemountpowerresistorsuitedtomeettoday s circuitdesignneeds.Eachsizeofferslowprofilecasedesignwithflexibletinnedcopper 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 associatedwithreflow,vapourphase,orinfrared(IR)manufacturingprocesseswithout 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 Test Condition SM (Wire) SM (Metal Film) Temperature Coefficient -55C +200C 200ppm /C 100ppm /C of Resistance: 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 2% 1% 1.5 hrs on 0.5 hrs off Voltage Withstand: 500VAC for 60 seconds No Physical damage Solderability: 235C 5C for 2 seconds 95% coverage Resistance to 270C 5C for 10 1seconds Resistance value change Soldering Heat: within 1% 1773242 CIS WR 04/2012 Dimensions are in millimeters Dimensions are shown for For email, phone or live chat, go to: te.com/help and inches unless otherwise reference purposes only. specified. Values in brackets Specifications subject are standard equivalents. to change.SMD Moulded Power Resistor Type SM Series Power Derating 100 75 50 25 0 -80 -50 -40 0 20 40 80 120 160 200 240 280 Ambient Temperature (C) Maximum Allowable Body Temperature 250 SMW5W 220C 200 SMW3W 160C SMW2W 150 135C 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 A 0.3 B 0.3 C 0.3 D 0.3 E max F0.3 Qty Per Reel 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 1773242 CIS WR 04/2012 Dimensions are in millimeters Dimensions are shown for For email, phone or live chat, go to: te.com/help and inches unless otherwise reference purposes only. specified. Values in brackets Specifications subject are standard equivalents. to change. Temperature Rise (C) Rated Load (%)