PRECISION MIL-QUALIFIED
METAL GLAZE™ RESISTOR
™
ISO-9001
Registered
RN
SERIES
•
•
•
•
1/8 watt to 1/2 watt
10 ohms to 1M ohms
0.1% to 1% tolerance
MIL-R-10509 ±25 ppm/°C to ±100
Tolerance
(±%)
1
1
0.1, 0.5, 1
0.1, 0.5, 1
1
0.1, 0.5, 1
0.1, 0.5, 1
Spiralled or laser
helixed to resistance
value, tolerance
High Temperature soldered
termination-lead assembly
Digital
marking per
MIL-R-10509
Tough molded jacket
Metal Glaze thick film
element fired at 1000°C to
solid ceramic core
Tin-lead electroplated
copper leads
SPECIFICATIONS:
MIL Type
RN50C*
RN55D
RN55C
RN55E
RN60D
RN60C
RN60E
Marking
Stamp
Stamp
Stamp
Stamp
Stamp
Stamp
Stamp
T.C.
(ppm/°C)
50
100
50
25
100
50
25
MIL Power Rating
(watts)
1/20 @ 125°C
1/8 @ 70°C
1/10 @ 125°C
1/10 @ 125°C
1/4 @ 70°C
1/8 @ 125°C
1/8 @ 125°C
MIL Resistance
Range (ohms)
10 to 100K
10 to 301K
49.9 to 100K
49.9 to 100K
10 to 1M
49.9 to 499K
49.9 to 499K
Nominal
Size
1/8W
1/4W
1/4W
1/4W
1/2W
1/2W
1/2W
Max Voltage
Rating
200
200
200
200
300
250
250
Note: *Conformal coating construction on 1/8 nominal size resistors.
RN55 PERFORMANCE:
MIL-R-10509 Test
Limits Allowed
Test Conditions
Temperature Coefficient ppm/°C
Low Temperature Operation
Temperature Cycling
Moisture Resistance
Short Time Overload
Load Life
(70°C-1/2W, 125°C-1/100W)
1000 hrs.
Terminal Strength
Effect of Soldering
Shock
Vibration
High Temperature Exposure
( 150°C No Load)
2X Rated Power for 10,000 hrs. at 70°C
Temperature Rise at 1/4W Power Load
Dielectric Strength
RN55
Max. %∆R(±3σ)
σ
∆
T0-55
±100
±0.10%
±0.10%
±0.50%
±0.10%
±0.30%
±0.05%
±0.10%
±0.05%
±0.05%
±0.50%
±0.50%
MIL SPEC POWER DERATING:
% Of MIL Spec. Rated Power
100
80
60
40
20
0
70
125
150 165 175
Ambient Temperature (°C)
RN55D, 60D
RN55C, 60C
& 50C, RN55E,
60E
RN55 (D) RN55 (C)
+200/-500
±0.50%
±0.50%
±1.50%
±0.50%
±1.00%
±0.20%
±0.50%
±0.50%
±0.50%
N/A
N/A
-
±0.50%
±50
±0.25%
±0.25%
±0.50%
±0.25%
±0.50%
±0.20%
±0.10%
±0.25%
±0.25%
N/A
N/A
-
±0.25%
T2-55
±50
±0.10%
±0.10%
±0.50%
±0.10%
±0.20%
±0.05%
±0.10%
±0.05%
±0.05%
±0.50%
±0.50%
HOW TO ORDER:
Sample Part No.:
See Temp. Rise Chart
RN - 55 - D - 1002 - F
MIL Style
RL=Fixed film resistor
High stability
±0.05%
±0.05%
DIMENSIONS
(Inches and (mm)):
Power Rating
50=1/20 watt
55=1/10 watt
60=1/8 watt
T.C. Characteristics
Nominal
Size
1/8 watt
1/4 watt
1/2 watt
Body
Length BL
0.150±0.020
(3.8±0.5)
0.250±.015
(6.4±.4)
0.390±.010
(9.9±.3)
Body
Diameter BD
0.066±0.008
(1.7±0.2)
0.090±.008
(2.3±.2)
0.140±.008
(3.6±.2)
Lead
Length LL
1.00±0.125
(25.4±3.2)
1.50±.125
(38.1±3.2)
1.50±.125
(38.1±3.2)
Lead
Diameter LD
0.016±0.002
(0.41±0.05)
0.025±.002
(0.64±0.05)
0.025±.002
(0.64±0.05)
Clean Lead
0.225
(5.7)
0.310
(7.9)
0.450
(11.4)
D=±100 ppm/°C
C=±50 ppm/°C
E=±25 ppm/°C
Resistance
First three digits represent significant
figures; fourth digit is number of zeros.
Tolerance
F=±1%, D=±0.5%, B=±0.1%
WIREWOUND AND FILM TECHNOLOGIES DIVISION
736 Greenway Road
•
Boone, North Carolina 28607-1860
•
Tel: 828-264-8861
•
Fax: 828-264-8866
•
www.irctt.com
1
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