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20 Series Datasheet

Vitreous Enamel Conformal Axial Terminal Wirewound, 5% Tolerance Std.

Res 20 product image

 

Features

  • Rugged vitreous enamel coating withstands high humidity and temperature cycling
  • Durable construction, recommended for industrial applications where reliability is paramount.
  • All-welded construction.
  • Flame resistant lead free vitreous enamel coating.
  • RoHS compliant; Add “E” suffix to part number to specify/li>

 

The 20 Series axial terminal resistors are both durable and economical. They have all the electrical attributes of the more expensive 90 Series resistors, including all-welded construction. They offer the durability of a lead free conformal vitreous enamel coating and are ideal for computer, communications and industrial applications in which cost, quality, and reliability are key considerations.

Series Specifications

Wattage: 1

Ohms: 1.0-3.0K

Max. Voltage*: 75

Wattage: 2

Ohms: 1.0-3.0K

Max. Voltage*: 65

Wattage: 3

Ohms: 0.1-10K

Max. Voltage*: 135

Wattage: 5

Ohms: 0.1-28K

Max. Voltage*: 330

Wattage: 7

Ohms: 0.1-25K

Max. Voltage*: 450

Wattage: 10

Ohms: 0.1-100K

Max. Voltage*: 720

 

12.5 watt size available on special order
*Maximum Voltage is based on Ohm’s Law [V=√(P*R)] as limited by the resis- tance value of specified product

Characteristics

Conformal lead free vitreous enamel

Ceramic

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

Linearly from 100% @ +25°C to 0% @ +350°C

±5% standard; other tolerances available

Based on 25°C free air rating (other wattages available)

Under 7 watts: 5 times rated wattage for 5 seconds; 7 watts and over: 10 times rated wattage for 5 seconds

1 to 9.99 ohms: ±50 ppm/°C; 10 ohms and over: ±30 ppm/°C

Dimensions

(in./mm max.) 

Wattage: 1

Length* (max.): 0.421 / 10.7

Diam.* (max.): 0.156 / 4.0

Lead ga.: 24

Wattage: 2

Length* (max.): 0.421 / 10.7

Diam.* (max.): 0.219 / 5.6

Lead ga.: 20

Wattage: 3

Length* (max.): 0.515 / 13.1

Diam.* (max.): 0.220 / 5.6

Lead ga.: 20

Wattage: 5

Length* (max.): 1.015 / 25.8

Diam.* (max.): 0.276 / 7.0

Lead ga.: 20

Wattage: 7

Length* (max.): 1.265 / 32.1

Diam.* (max.): 0.394 / 10.0

Lead ga.: 20

Wattage: 10

Length* (max.): 1.859 / 47.2

Diam.* (max.): 0.394 / 10.0

Lead ga.: 20

 

*For units below 1Ω, add 15% to body diameter, 10% to body length.

Res 20 Dimensions

Ordering Information

Res 20 Order Info

 

Standard part numbers 

Part number chart.

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