PRECISION MIL-QUALIFIED RESISTOR METAL GLAZE ISO-9001 Registered RN SERIES Digital marking per MIL-R-10509 Spiralled or laser helixed to resistance value, tolerance High Temperature soldered termination-lead assembly * * * * Tough molded jacket 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 Metal Glaze thick film element fired at 1000C to solid ceramic core Tin-lead electroplated copper leads SPECIFICATIONS: Marking Tolerance (%) T.C. (ppm/C) MIL Power Rating (watts) MIL Resistance Range (ohms) Nominal Size Max Voltage Rating RN50C* Stamp RN55D Stamp 1 50 1/20 @ 125C 10 to 100K 1/8W 200 1 100 1/8 @ 70C 10 to 301K 1/4W RN55C 200 Stamp 0.1, 0.5, 1 50 1/10 @ 125C 49.9 to 100K 1/4W 200 RN55E Stamp 0.1, 0.5, 1 25 1/10 @ 125C 49.9 to 100K 1/4W 200 RN60D Stamp 1 100 1/4 @ 70C 10 to 1M 1/2W 300 RN60C Stamp 0.1, 0.5, 1 50 1/8 @ 125C 49.9 to 499K 1/2W 250 RN60E Stamp 0.1, 0.5, 1 25 1/8 @ 125C 49.9 to 499K 1/2W 250 MIL Type Note: *Conformal coating construction on 1/8 nominal size resistors. RN55 PERFORMANCE: Test Conditions T0-55 T2-55 +200/-500 50 100 50 Low Temperature Operation 0.50% 0.25% 0.10% 0.10% Temperature Cycling 0.50% 0.25% 0.10% 0.10% Moisture Resistance 1.50% 0.50% 0.50% 0.50% Short Time Overload 0.50% 0.25% 0.10% 0.10% Load Life (70C-1/2W, 125C-1/100W) 1000 hrs. 1.00% 0.50% 0.30% 0.20% Terminal Strength 0.20% 0.20% 0.05% 0.05% Effect of Soldering 0.50% 0.10% 0.10% 0.10% Shock 0.50% 0.25% 0.05% 0.05% Vibration 0.50% 0.25% 0.05% 0.05% High Temperature Exposure ( 150C No Load) N/A N/A 0.50% 0.50% 2X Rated Power for 10,000 hrs. at 70C N/A N/A 0.50% 0.50% Temperature Coefficient ppm/C Temperature Rise at 1/4W Power Load Dielectric Strength RN55 (D) RN55 (C) RN55 R(3 ) Max. % - - 0.50% 0.25% MIL SPEC POWER DERATING: % Of MIL Spec. Rated Power MIL-R-10509 Test Limits Allowed 100 RN55C, 60C & 50C, RN55E, 60E 80 60 40 RN55D, 60D 20 0 70 HOW TO ORDER: Sample Part No.: RN - 55 - D - 1002 - F See Temp. Rise Chart 0.05% 0.05% 125 150 165 175 Ambient Temperature (C) MIL Style RL=Fixed film resistor High stability Power Rating DIMENSIONS (Inches and (mm)): 50=1/20 watt 55=1/10 watt 60=1/8 watt T.C. Characteristics Nominal Size Body Length BL Body Diameter BD Lead Length LL Lead Diameter LD Clean Lead 1/8 watt 0.1500.020 (3.80.5) 0.0660.008 (1.70.2) 1.000.125 (25.43.2) 0.0160.002 (0.410.05) 0.225 (5.7) 1/4 watt 0.250.015 (6.4.4) 0.090.008 (2.3.2) 1.50.125 (38.13.2) 0.025.002 (0.640.05) 0.310 (7.9) 1/2 watt 0.390.010 (9.9.3) 0.140.008 (3.6.2) 1.50.125 (38.13.2) 0.025.002 (0.640.05) 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