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40 Series

Ohmicone® Silicone-Ceramic Conformal Axial Terminal Wirewound Resistors
1% and 5% Tolerances Standard

RoHS compliant

SeriesWattageOhmsDimensions (in. / mm)Voltageterminal ga.
LengthDiam.
411.00.10-6K0.437 / 11.10.125 / 3.215024
422.00.10-8K0.406 / 10.30.219 / 5.610020
433.00.10-20K0.593 / 15.10.219 / 5.620020
455.00.10-70K0.937 / 23.80.343 / 8.746018
477.00.10-80K1.280 / 32.50.343 / 8.767018
4010.00.10-150K1.900 / 48.30.406 / 10.3100018
Non-Inductive versions available. Insert "N" before tolerance code. Example - 42NJ27R

RoHS compliant product available Jan. 2006 Add "E" suffix to part number to specify.

Ohmite 40 Series resistors are the most economical conformal silicone-ceramic coated resistors offered. These all-welded units are characterized by their low temperature coefficients and resistance to thermal shock, making them ideal for a wide range of electrical and electronic applications.

Units with 1% and 5% tolerances are identical in construction and electrical specifications. Durable but economical 40 Series resistors exceed industry requirements for quality.

FEATURES
  • Economical
  • Applications include commercial, industrial and communications equipment
  • Stability under high temperature conditions
  • All-welded construction
SPECIFICATIONS

Material

  • Coating: Conformal silicone-ceramic.
  • Core: Ceramic.
  • Terminals: Solder-coated copper clad axial. RoHS solder composition is 96% Sn, 3.5% Ag, 0.5% Cu
  • Derating: Linearly from 100% @ +25°C to 0% @ +275°C.

Electrical

  • Tolerance: 5% (J type), 1% (F type) (other tolerances available).
  • Power rating: Based on 25°C free air rating (other wattages available).
  • Overload: Under 5 watts: 5 times rated wattage for 5 seconds. 5 watts and over: 10 times rated wattage for 5 seconds.
  • Temperature coefficient:
    Under 1Ω: 90 ppm/°C
    1Ω to 9.99Ω: 50 ppm/°C
    10Ω and over: 20 ppm/°C


HOW TO ORDER


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Ohmite Mfg. Co.
1600 Golf Rd., Suite 850
Rolling Meadows, IL 60008
Tel: 1-866-9-OHMITE
(1-866-964-6483)
Int'l: 1-847-258-0300
Fax: 1-847-574-7522
info@ohmite.com
www.ohmite.com
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