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
RL Series
• MIL-R-22684
• ±200 ppm/°C
• 1/4 watt to 1/2 watt
• 2% and 5% tolerance
• 4.3 ohms to 470K ohms
Semi-Precision 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
RL07 Band 2, 5 200 1/4 @ 70°C 51 to 150K 1/4W 250
RL20 Band 2, 5 200 1/2 @ 70°C 4.3 to 470K 1/2W 350
* For values below or above Mil Resistance, the Non-Mil part can be used. But keep in mind -- it is a non-mil part.
Test Conditions MIL-R-22684 Test
Limits Allowed
RL07 Max.
%∆R (±3σ)
Temperature Coefficient (ppm/°C) ±200 ±200
Low Temperature Operation ±0.50% ±0.10%
Thermal Shock ±1.00% ±0.15%
Moisture Resistance ±1.5% ±0.05%
Short Time Overload ±0.50% ±0.10%
Load Life (70°C --- 1/4W) 1000 hours ±2.00% ±0.40%
Terminal Strength ±0.50% ±0.10%
Effect of Soldering ±0.50% ±0.10%
Shock ±0.50% ±0.05%
Vibration ±0.50% ±0.05%
High Temperature Exposure (150°C No Load) N/A ±0.75%
Rated Power for 10,000 hours at 70°C N/A ±0.60%
Temperature Rise @ 1/4W Power Load - See Temperature Rise Chart
Dielectric Strength ±0.50% ±0.05%
Environmental Data
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
RL 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
1/4 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)
0.310
(7.9)
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
Semi-Precision Mil-Qualified
Metal Glaze™ Resistor
Commercial Power Derating Chart
100
80
60
0
0 125 150 175
% Of Commercial Rated Power
(in many cases
2X MIL Spec. power rating)
Ambient Temperature (°C)
RG07
RG20
40
20
RL 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
Power Rating
07 = 1/4 watt
20 = 1/2 watt
Lead Material
S = Solderable/weldable leads
Resistance
First three digits represent significant figures;
fourth digit is number of zeros.
Tolerance
G = 2%, J = 5%
Ordering Data
RL 07 S 1001 G
100
80
60
0
0 125 150 175
Ambient Temperature (°C)
All RL
40
20
165
MIL Spec. Power Derating Chart
Semi-Precision Mil-Qualified
Metal Glaze™ Resistor
RL Series Issue November 2008 Sheet 3 of 3
