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80

20 Series

Vitreous Enamel Conformal Axial

Terminal Wirewound, 5% Tolerance Std.

LD

1.5 in. / 38.1mm

min.

Coating Conformal lead free vitreous enamel

Core Ceramic.

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

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

Tolerance ±5% standard; other tolerances available

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

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

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

Series

Wattage

Ohms

Max. Voltage*

21

1

1.0-3.0K

75

22

2

1.0-3.0K

65

23

3

0.1-10K

135

25

5

0.1-28K

330

27

7

0.1-25K

450

20

10

0.1-100K

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

Series Wattage

Length* (max.)

Diam.* (max.)

Lead ga.

21

1

0.421 / 10.7

0.156 / 4.0

24

22

2

0.421 / 10.7

0.219 / 5.6

20

23

3

0.515 / 13.1

0.220 / 5.6

20

25

5

1.015 / 25.8

0.276 / 7.0

20

27

7

1.265 / 32.1

0.394 / 10.0

20

20

10

1.859 / 47.2

0.394 / 10.0

20

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

Fea ture S

• 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.

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.

Chara C teri S ti CS

Serie S S pe C i F i C ation S

Dimen S ion S

(in./mm max.)

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