100 Series / SM Series / PC Series Precision Wirewound Resistors • • • • • • • Resistances to 25MOhms Resistance Tolerances to ±0.005% Temperature Coefficients of ±1 ppm/K Power Ratings to 2W 100% Acceptance Tested / Traceable to NIST Long Term Stability / 100ppm/year Matched Resistance Sets to ±0.001% and ±0.5 ppm/K SPECIFICATIONS Type Commercial Wattage ( Watts ) Maximum Ohms SM-2 0.06 75k Minimum Tolerance (%) Dimensions Lead Diameter ±0.002” [±0.05mm] Maximum Working Voltage Diameter ±0.005” [±0.13mm] Length ±0.025” [±0.64mm] 0.100 [2.5] 0.210 [5.3] 0.020 [0.5] 75 100 1 SM-3 0.08 150k 0.125 [3.2] 0.260 [6.6] 0.020 [0.5] 0.025 [0.6] SM-4 0.10 250k 0.125 [3.2] 0.375 [9.5] 0.020 [0.5] 100 SM-13 0.10 250k 0.156 [4.0] 0.312 [7.9] 0.020 [0.5] 100 SM-5 0.12 400k 0.187 [4.7] 0.250 [6.4] 0.025 [0.6] 150 SM-6 0.15 500k 0.187 [4.7] 0.295 [7.5] 0.025 [0.6] 150 139A 0.15 500k 0.250 [6.4] 0.250 [6.4] 0.025 [0.6] 100 SM-15 0.175 750k 0.187 [4.7] 0.375 [9.5] 0.025 [0.6] 0.020 [0.5] 200 SM-12 0.20 750k 0.187 [4.7] 0.450 [11.4] 0.025 [0.6] 200 0.250 [6.4] 0.375 [9.5] 0.032 [0.8] 0.025 [0.6] 200 0.210 [5.3] 0.465 [11.8] 0.025 [0.6] 250 300 100 0.20 800k SM-7 0.25 1M 0.005 101 0.25 1.2M 0.250 [6.4] 0.500 [12.7] 0.032 [0.8] 0.025 [0.6] 102 0.33 2.5M 0.250 [6.4] 0.750 [19.1] 0.032 [0.8] 0.025 [0.6] 400 120 0.40 3.8M 0.375 [9.5] 0.500 [12.7] 0.032 [0.8] 300 121 0.50 3.8M 0.375 [9.5] 0.750 [19.1] 0.032 [0.8] 400 129 0.75 10M 0.375 [9.5] 1.000 [25.4] 0.032 [0.8] 600 106 1.00 12M 0.500 [12.7] 1.000 [25.4] 0.032 [0.8] 800 107 1.50 15M 0.500 [12.7] 1.500 [38.1] 0.032 [0.8] 900 108 2.00 25M 0.500 [12.7] 2.000 [50.8] 0.032 [0.8] 1000 1 Where more than one lead is listed / the top value is Standard Lead Length = 1.50 [38] Min. Ordering Information Part Number - Resistance - Tolerance - TCR ( If not standard ) Example: SM-6 25kOhms 0.1% Riedon Inc. 1.02 300 Cypress Avenue Alhambra CA 91801 (626) 284-9901 (626) 284-1704 www.riedon.com Page 100 Series / SM Series / PC Series Precision Wirewound Resistors SPECIFICATIONS (continued) PC Series Type Commercial Wattage ( Watts ) Maximum Ohms 100PC 0.125 130PC 0.125 131PC 0.125 500k 101PC 0.25 600k 120PC 0.40 800k 104PC 0.50 Dimensions Minimum Tolerance (%) Length ±0.025” [±0.64mm] Lead Diameter ±0.002” [±0.05mm] 500k 0.250 [6.4] 0.375 [9.5] 0.025 [0.6] 0.150 [3.8] 150 500k 0.250 [6.4] 0.312 [7.9] 0.025 [0.6] 0.150 [3.8] 150 0.250 [6.4] 0.312 [7.9] 0.025 [0.6] 0.200 [5.1] 150 0.250 [6.4] 0.500 [12.7] 0.025 [0.6] 0.150 [3.8] 150 0.375 [9.5] 0.500 [12.7] 0.032 [0.8] 0.200 [5.1] 300 0.500 [12.7] 0.032 [0.8] 0.025 [0.6] 0.300 [7.6] 400 0.005 1M 0.500 [12.7] 1 Lead Spacing ±0.015” [±0.4mm] Where more than one lead is listed / the top value is Standard Lead Length = 1.00 [25] Min. Rectangular Series Type Commercial Wattage ( Watts ) Maximum Ohms SM-8 0.125 SM-9 0.250 SP5086 SP5232 Dimensions Width ±0.010” [±0.25mm] Height ±0.025” [±0.64mm] 500k 0.140 [3.6] 750k 0.150 [3.8] 0.300 500k 0.102 [2.6] 0.500 1M 0.160 [4.1] Lead Diameter1 ±0.002” [±0.05mm] Lead Spacing ±0.015” [±0.4mm] 0.250 [6.4] 0.270 [6.9] 0.032 [0.8] 0.125 [3.2] 150 0.270 [6.9] 0.540 [13.7] 0.032 [0.8] 0.250 [6.4] 150 0.320 [8.1] 0.300 [7.6] 0.025 [0.6] 0.150 [3.8] 150 0.525 [13.3] 0.585 [14.9] 0.032 [0.8] 0.400 [10.2] 150 Specification Value Tolerances ±0.005% to ±1% ( See Derating Curve ) Temperature Coefficient ( Standard ) ( down to 1ppm on request ) >100W : ±10ppm/K 10W to100W : ±20ppm/K <10W : ±30ppm/K Temperature Range -55°C to +145°C ( See Derating Curve ) Power Derating Curve Percentage of Rated Power 160 1% / 140 0.05% 120 100 0.5% / 0.02% / 0.1% Tolera n 80 Fast Rise Time - These resistors are available in a low reactance design for fast rise time and extended frequency response. Toler a nce High Stability - These resistors are available in a High Stability version with maximun resistance change of ±20ppm/year under normal conditions. e 60 0.005% Tolera nce 40 20 0 0 20 Riedon Inc. 1.02 40 60 80 Lead Length = 1.00 [25] Min. Notes: ( Contact Factory for these options ) ce 0.01% T oleranc Maximum Working Voltage Length ±0.010” [±0.25mm] 1 180 Maximum Working Voltage Diameter ±0.005” [±0.13mm] 1 100 Ambient Temperature °C 300 Cypress Avenue 120 140 160 High TC - These resistors are available in High TC configurations. Standard TC’s are +2600 / +3850 / +4500 / +5000 / and +6000 ppm/K. Alhambra CA 91801 (626) 284-9901 (626) 284-1704 www.riedon.com Page