General Note

IRC reserves the right to make changes in product specification without notice or liability.

All information is subject to IRC’s own data and is considered accurate at time of going to print.

A subsidiary of

TT electronics plc

• 4222 South Staples Street • Corpus Christi Texas 78411 USA

Wire and Film Technologies Division

Telephone: 361 992 7900 • Facsimile: 361 992 3377 • Website: www.irctt.com

RLR Series

• 1/8 watt to 1/2 watt

• TCR of ±100 ppm/°C

• 1% and 2% tolerance

• 4.3 ohms to 3.01M ohms

• MIL-R-39017 approved to "S" level

Established Reliability

Mil-Qualified

Metal Glaze™ Resistor

Electrical Data

MIL

Type

Marking

Tolerance

(±%)

T.C.

(ppm/°C)

Power Rating

(watts)

Resistance

Range

(ohms)

Nominal

Size

Max Voltage

Rating

RLR05/S*

Stamp

1, 2

100

1/8 @ 70°C

10 to 301K

1/8W

200

RLR07/S

Stamp

1, 2

100

1/4 @ 70°C

10 to 3.01M

1/4W

250

RLR20/S

Stamp

1, 2

100

1/2 @ 70°C

4.3 to 3.01M

1/2W

350

* Conformally coated construction on all 1/8 nominal sizes.

Test Conditions

MIL-R-22684 Test

Limits Allowed

RL07 Max.

%

∆R (±3σ)

Temperature Coefficient (ppm/°C)

±100

±100

Low Temperature Operation

±0.25%

±0.05%

Thermal Shock

±0.25%

±0.15%

Moisture Resistance

±1.00%

±0.50%

Short Time Overload

±0.50%

±0.15%

Load Life (70°C --- 1/4W) 1000 hours

±4.00%

±0.50%

Terminal Strength

±0.25%

±0.05%

Effect of Soldering

±0.25%

±0.10%

Shock

±0.50%

±0.05%

Vibration

±0.50%

±0.05%

High Temperature Exposure (150°C No Load)

±2.00%

±0.50%

Temperature Rise @ 1/4W Power Load

-

See Temperature Rise Chart

Dielectric Strength

±0.25%

±0.05%

Environmental Data

ESTABLISHED RELIABILITY MIL SPECIFICATIONS: RLR products listed above are qualified to the appropriate established reliability MIL Specification. In general, Metal Glaze units such as

these are specified for all RLR requirements.

Tough molded jacket

Metal Glaze thick film element

fired at 1000°C to solid

ceramic core

Tin-lead electroplated copper leads

Spiraled or laser

helixed to

resistance value,

tolerance

High temperature

soldered termination-lead

assembly

Digital marking per

MIL-R-39017

RLR Series Issue November 2008 Sheet 1 of 3

OBSOLETE