SM-2 RIEDON | Alldatasheet
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Riedon Inc. 300 Cypress Avenue Alhambra CA 91801 (626) 284-9901 (626) 284-1704 www.riedon.com Page 31.02 Type Commercial Wattage ( Watts ) Maximum Ohms Minimum Tolerance ( % ) Dimensions Maximum Working VoltageDiameter ±0.005” [±0.13mm] Length ±0.025” [±0.64mm] Lead Diameter1 ±0.002” [±0.05mm] SM-2 0.06 75k 0.005 0.025 [0.6] 100 0.020 [0.5] 200 0.025 [0.6] 200 0.025 [0.6] 300 0.025 [0.6] 400
1 Where more than one lead is listed / the top value is Standard
Lead Length = 1.50 [38] Min.
100 Series / SM Series / PC Series
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 Part Number - Resistance - Tolerance - TCR ( If not standard ) Example: SM-6 25kOhms 0.1% Precision Wirewound Resistors
Ordering Information
Riedon Inc. 300 Cypress Avenue Alhambra CA 91801 (626) 284-9901 (626) 284-1704 www.riedon.com Page 41.02 SPECIFICATIONS (continued) 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 ) Type Commercial Wattage ( Watts ) Maximum Ohms Minimum Tolerance ( % ) Dimensions Maximum Working Voltage Diameter ±0.005” [±0.13mm] Length ±0.025” [±0.64mm] Lead Diameter1 ±0.002” [±0.05mm] Lead Spacing ±0.015” [±0.4mm] 100PC 0.125 500k 0.005 Lead Length = 1.00 [25] Min. PC Series Type Commercial Wattage ( Watts ) Maximum Ohms Dimensions Maximum Working Voltage Width ±0.010” [±0.25mm] Height ±0.025” [±0.64mm] Length ±0.010” [±0.25mm] Lead Diameter1 ±0.002” [±0.05mm] Lead Spacing ±0.015” [±0.4mm] 1 Lead Length = 1.00 [25] Min. Rectangular Series Power Derating Curve Percentage of Rated Power 180 160 140 120 100 0 20 40 60 80 100 120 140 160 Ambient Temperature °C 1% / 0.5% / 0.1% Tolerance 0.05% / 0.02% Tolerance 0.01% Tolerance 0.005% Tolerance Notes: ( Contact Factory for these options ) Fast Rise Time - These resistors are available in a low reactance design for fast rise time and extended frequency response. High Stability - These resistors are available in a High Stability version with maximun resistance change of ±20ppm/year under normal conditions. High TC - These resistors are available in High TC configurations. Standard TC’s are +2600 / +3850 / +4500 / +5000 / and +6000 ppm/K. Precision Wirewound Resistors