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WIRE WOUND, METAL CLAD RESISTORS

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IRB60, 80, 120 metal clad, wire wound resistors are ideal for applications that require 60W,80W,120W or less and
are on a budget. These models come in a durable metal case have flying leads.

GENERAL SPECIFICATIONS

MODEL

 Power rating [W]

Resistance Range [§Ù]

Inductive

Non-Inductive

IRB 60

60

0.1-270

0.1-56

IRB 80

80

0.1-910

0.1-110

IRB120

120

0.1-1.3K

0.1-300

Available Tolerances:  G (+-2%), H (+-3%), J (+-5%), K (+-10%), M (+-20%)

DIMENSIONS

MODEL

DIMENSIONS

L1

L2

D

W

L3

H

IRB60

100+-1.5

90+-1.5

5+-0.2

32.3+-0.5

75+-1

12.3+-1

IRB80

150+-2

140+-2

4.2+-0.5

34+-1

130+-2

20+-1

IRB120

182+-1

170+-1

5+-0.2

44+-1

150+-1

13+-0.5

CHARACTERISTICS                                                 Values in [ ] mean change in ohmic value after test

Temperature Range

-55C to 200C

Insulation Resistance

20Mohm min.

Dielectric Strength

          Available options: AC 1500V,3500V,4500V,5400V MAX. leakage current: 2mA

Temp. Coefficient

                                                                       +- 260ppm/C maximum

Short time overload

(2%+0.05§Ù)                    60W:5¡¿wattage rating, 80W, 120W:10¡¿wattage rating-5 sec.

Moisture Resistance

(3%+0.05§Ù)                                            40C, 95% RH, DC100V case to terminal (500hrs.)

Thermal Shock

(2%+0.05§Ù)                                                                 wattage rating 30 min., -25C, 15 min.

Vibration

(1%+0.05§Ù)                                                 10Hz-55Hz-10Hz (1 min.), 2hrs.each direction

Moisture Load Life

(3%+0.05§Ù)              40C, 95%RH, 0.1¡¿wattage rating, 1.5hrs.on, 30min. off, 1000hrs.

Load Life

(5%+0.05§Ù)                                                     wattage rating 1.5h. on, 30min.off, 1000hrs.


SURFACE TEMPERATURE INCREASE CURVE

DERATING CURVE

ORDERING PROCEDURE EXAMPLE

Copyright©, RARA Electronics Corporation
Tel:82-32-817-4325 Fax:82-32-817-4329

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