Precision Mil-Qualified
Metal Glaze™ Resistor
Sꢀiraled or laser
helixed to
resistance value,
tolerance
High temꢀerature
soldered termination-lead
assembly
RN Series
• 1/8 watt to 1/2 watt
Digital marking ꢀer
MIL-R-10509
• 10 ohms to 1M ohms
Tough molded jacket
• 0.1% to 1% tolerance
Metal Glaze thick film
element fired at 1000ꢁ° to
solid ceramic core
• MIL-R-10509 25 ꢀꢀm/ꢁ° to 100
Tin-lead electroꢀlated coꢀꢀer leads
Electrical Data
Resistance
Range
(ohms%
Tolerance
(±±%
T.C.
(ppm/°C%
Power Rating
(watts%
Nominal
Size
Max Voltage
Rating
MIL Type
Marking
RN50C*
Stamꢀ
Stamꢀ
Stamꢀ
Stamꢀ
Stamꢀ
Stamꢀ
Stamꢀ
1
50
100
50
1/20 @ 125ꢁ°
1/8 @ 70ꢁ°
10 to 100K
10 to 301K
1/8W
1/4W
1/4W
1/4W
1/2W
1/2W
1/2W
200
200
200
200
300
250
250
RN55D
RN55C
RN55E
RN60D
RN60C
RN60E
1
0.1, 0.5, 1
0.1, 0.5, 1
1
1/10 @ 125ꢁ° 49.9 to 100K
1/10 @ 125ꢁ° 49.9 to 100K
25
100
50
1/4 @ 70ꢁ°
1/8 @ 125ꢁ°
1/8 @ 125ꢁ°
10 to 1M
0.1, 0.5, 1
0.1, 0.5, 1
49.9 to 499K
49.9 to 499K
25
* °onformally coated construction on all 1/8 nominal sizes.
Environmental Data
MIL-R-10509 Test
Limits Allowed
RN55 Max.
±ΔR (±ꢀσ%
Test Conditions
RN55 (D%
RN55 (C%
T0-55
T2-55
Temperature Coefficient (ppm/°C%
Low Temperature Operation
Temperature Cycling
+200/-500
0.50%
0.50%
1.50%
0.50%
1.00%
0.20%
0.50%
0.50%
0.50%
N/A
50
100
50
0.25%
0.25%
0.50%
0.25%
0.50%
0.20%
0.10%
0.25%
0.25%
N/A
0.10%
0.10%
0.50%
0.10%
0.30%
0.05%
0.10%
0.05%
0.05%
0.50%
0.50%
0.10%
0.10%
0.50%
0.10%
0.20%
0.05%
0.10%
0.05%
0.05%
0.50%
0.50%
Moisture Resistance
Short Time Overload
Load Life (70°C-1/2W, 125°C-1/100W% 1000 hours
Terminal Strength
Effect of Soldering
Shock
Vibration
High Temperature Exposure (150°C No Load%
2X Rated Power for 10,000 hours @ 70°C
Temperature Rise @ 1/4W Power Load
Dielectric Strength
N/A
N/A
-
-
See Temꢀerature Rise °hart
0.05% 0.05%
0.50%
0.25%
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
Wire and Film Technologies Division • 4222 South Staples Street • Corpus Christi Texas 78411 USA
Telephone: 361 992 7900 • Facsimile: 361 992 3377 • Website: www.irctt.com
RN Series Issue March 2009 Sheet 1 of 2