Surface Mount Power Resistors Resistance: 0.005 to 50,000 Ohms High Power - to 4 Watts Resistance Tolerance to ±0.005% Low Temperature Coefficient Superior Surge Handling Capability High Temperature Molded Construction Reel Packaging in Embossed Carrier Tape 100% Acceptance Tested, Traceable to NIST Riedons SL and S power resistors serve todays expanding usage of surface mounted circuitry. The SL Series is for low resistance requirements from 0.005 to 1 ohm. This low-profile design uses a welded strip metal resistance element with very low inductance (0.5nH to 5nH) and low thermal emf. The S Series uses a welded wirewound element for higher resistance applications to 50K ohms. SPECIFICATIONS Power WATTS A max B max C max Lead Thick1 D2 S-1 0.01 to 400 0.5 0.210 0.130 0.110 0.006 0.060 0.100 0.005 0.040 0.062 0.100 0.125 0.250 S-2 0.01 to 1K 1.0 0.275 0.150 0.130 0.006 0.070 0.120 0.005 0.070 0.096 0.112 0.145 0.337 S-4 0.01 to 15K 2.0 0.475 0.250 0.180 0.006 0.120 0.190 0.005 0.100 0.155 0.230 0.230 0.540 S-5 0.01 to 50K 4.0 0.820 0.295 0.280 0.006 0.150 0.245 0.005 0.190 0.220 0.250 0.460 0.900 SL-2 0.005 to 0.1 1 0.275 0.150 0.100 0.006 0.070 0.120 0.005 0.070 0.096 0.112 0.145 0.337 SL-4 0.005 to 0.1 2 0.475 0.250 0.100 0.006 0.120 0.190 0.005 0.100 0.155 0.230 0.230 0.540 Dimension are in inches. Tolerance: 1 ± 0.003 2 ± 0.020 3 Stand-Off E Ht. F3 Footprint3 H D W L ± 0.010 Temperature Coefficient of Resistance (ppm/°C): SL: ±120 S: <1Ω:±90; 1 to 10Ω:±50; >10Ω:±20 Standard Resistance Tolerances: SL: ±0.1% to ±5%; S: ±0.01% to ±5% (Other tolerances are available.) Operating Temperature: -55°C to +275°C Reel/Tape Width (mm): SL-2: 16, SL-4: 24, S-1: 12, S-2: 16, S-4: 24, S-5: 32 Environmental Specifications: (MIL-STD 202) Load Life at Rated Wattage Moisture Resistance Temperature Cycle (-40°C to +125°C) Short Time Overload (5X rated wattage for 5 Sec.) Low Temperature Storage Solder Heat Shock Vibration Options: 1 1 0.5 0.5 0.5 0.25 0.5 0.5 Power Derating % OF RATED POWER % Max. Resistance Change 120 100 80 60 40 20 0 25 75 125 175 225 275 AMBIENT TEMPERATURE °C Four-wire Kelvin terminations, special markings, special temperature coefficients to +6000 ppm/°C, 100 hour burn-in per Mil-Stds, non-inductive Aryton-Perry windings for S-1, S-2, S-4 and S-5. 350 Power Resistance (OHMS) TYPE 4