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
• 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
Dimensions (Inches and (mm))
Nominal
Size
Body Length
BL
Body Diameter
BD
Lead Length
LL
Lead Diameter
LD Clean Lead
1/8 watt 0.150 ±0.020
(3.8 ±0.5)
0.066 ±0.008
(1.7 ±0.2)
1.00 ±0.125
(25.4 ±3.2)
0.016 ±0.002
(0.41 ±0.05)
0.187
(4.7)
1/4 watt 0.250 ±0.015
(6.4 ±0.4)
0.090 ±0.008
(2.3 ±0.2)
1.50 ±0.125
(38.1 ±3.2)
0.025 ±0.002
(0.64 ±0.05)
0.300
(7.6)
1/2 watt 0.390 ±0.010
(9.9 ±0.3)
0.140 ±0.008
(3.6 ±0.2)
1.50 ±0.125
(38.1 ±3.2)
0.032 ±0.002
(0.81 ±0.05)
0.450
(11.4)
Physical Data
LL
LD
BL
BD
Established Reliability
Mil-Qualified
Metal Glaze™ Resistor
RLR Series Issue November 2008 Sheet 2 of 3
• 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
Sample Part No.
MIL Style
RL = Fixed Film Resistor.
Established reliability.
Power Rating
05 = 1/8 watt
07 = 1/4 watt
20 = 1/2 watt
Lead Material
C = Solderable/weldable leads
Resistance
First three digits represent significant figures;
fourth digit is number of zeros.
Tolerance
F = ±1%, G = ±2%
Failure Rate
S = 0.001% for 1000 hours (60% confidence)
Ordering Data
RLR 20 C 1001 F S
Established Reliability
Mil-Qualified
Metal Glaze™ Resistor
100
80
60
0
0 125 150 175
Ambient Temperature (°C)
RLR
40
20
165
MIL Spec. Power Derating Chart
% Of MIL Spec. Rated Power
RLR Series Issue November 2008 Sheet 3 of 3