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40 Series Datasheet

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

800 & 1000 series  product image

Features

  • Economical
  • Applications include commercial, industrial and communications equipment
  • Stability under high temperature conditions
  • All-welded construction
  • RoHS compliant; 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.

Series Specifications

Wattage: 1.0

Ohms: 0.10-6K

Voltage: 150

Wattage: 2.0

Ohms: 0.10-8K

Voltage: 100

Wattage: 3.0

Ohms: 0.10-20K

Voltage: 200

Wattage: 5.0

Ohms: 0.10-70K

Voltage: 460

Wattage: 7.0

Ohms: 0.10-80K

Voltage: 670

Wattage: 10.0

Ohms: 0.10-150K0

Voltage: 1000

 

Non-Inductive versions available. Insert “N” before tolerance code.
Example: 42NJ27R

Characteristics

Conformal silicone-ceramic.

Ceramic.

Solder-coated copper clad axial. RoHS solder composition is 96% Sn, 3.5% Ag, 0.5% Cu

Linearly from100% @ +25°C to 0% @ +275°C.

±5% (J type), ±1% (F type) (other tolerances available).

Based on 25°C free air rating

Under 5 watts: 5 times rated wattage for 5 seconds. 5 watts and over: 10 times rated wattage for 5 seconds.

Under 1Ω: ±90 ppm/°C; 1Ω to 9.99Ω: ±50 ppm/°C; 10Ω and over: ±20 ppm/°C

-55°C to 275°C

Dimensions

(in./mm max.) 

Res 40 Dimensions

Wattage: 1.0

Length: 11.1

Diam.: 0.125 / 3.2

Lead ga.: 24

Wattage: 2.0

Length: 0.406 / 10.3

Diam.: 0.219 / 5.6

Lead ga.: 20

Wattage: 3.0

Length: 0.593 / 15.1

Diam.: 0.219 / 5.6

Lead ga.: 20

Wattage: 5.0

Length: 0.937 / 23.8

Diam.: 0.343 / 8.7

Lead ga.: 18

Wattage: 7.0

Length: 1.280 / 32.5

Diam.: 0.343 / 8.7

Lead ga.: 18

Wattage: 10.0

Length: 1.900 / 48.3

Diam.: 0.406 / 10.3

Lead ga.: 18

Ordering Information

Res 40 Order Info

 

Standard part numbers 

Part number chart.

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