Precision Mil-Qualified Metal Glaze™ Resistor High temperature soldered termination-lead assembly RN Series Spiraled or laser helixed to resistance value, tolerance • 1/8 watt to 1/2 watt Digital marking per MIL-R-10509 • 10 ohms to 1M ohms Tough molded jacket • 0.1% to 1% tolerance Metal Glaze thick film element fired at 1000°C to solid ceramic core • MIL-R-10509 ±25 ppm/°C to ±100 Tin-lead electroplated copper leads Electrical Data Marking Tolerance (±%) T.C. (ppm/°C) Power Rating (watts) Resistance Range (ohms) Nominal Size Max Voltage Rating RN50C* Stamp 1 50 1/20 @ 125°C 10 to 100K 1/8W 200 RN55D Stamp 1 100 1/8 @ 70°C 10 to 301K 1/4W 200 RN55C Stamp 0.1, 0.5, 1 50 1/10 @ 125°C 49.9 to 100K 1/4W 200 RN55E Stamp 0.1, 0.5, 1 25 1/10 @ 125°C 49.9 to 100K 1/4W 200 RN60D Stamp 1 100 1/4 @ 70°C 10 to 1M 1/2W 300 RN60C Stamp 0.1, 0.5, 1 50 1/8 @ 125°C 49.9 to 499K 1/2W 250 RN60E Stamp 0.1, 0.5, 1 25 1/8 @ 125°C 49.9 to 499K 1/2W 250 MIL Type * Conformally coated construction on all 1/8 nominal sizes. Environmental Data Test Conditions MIL-R-10509 Test Limits Allowed RN55 Max. %ΔR (±3σ) RN55 (D) RN55 (C) 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 (70°C-1/2W, 125°C-1/100W) 1000 hours ±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 (150°C No Load) N/A N/A ±0.50% ±0.50% 2X Rated Power for 10,000 hours @ 70°C N/A N/A ±0.50% ±0.50% - - ±0.50% ±0.25% Temperature Coefficient (ppm/°C) Temperature Rise @ 1/4W Power Load Dielectric Strength See Temperature Rise Chart ±0.05% ±0.05% 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. 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 A subsidiary of TT electronics plc RN Series Issue March 2009 Sheet 1 of 2 Precision Mil-Qualified Metal Glaze™ Resistor Physical Data LL BL LD BD Dimensions (Inches and (mm)) Nominal Size 1/8 watt 1/4 watt 1/2 watt Body Length BL Body Diameter BD Lead Length LL Lead Diameter LD Clean Lead 0.150 ±0.020 0.066 ±0.008 1.00 ±0.125 0.016 ±0.002 0.225 (3.8 ±0.5) (1.7 ±0.2) (25.4 ±3.2) (0.41 ±0.05) (5.7) 0.250 ±0.015 0.090 ±0.008 1.50 ±0.125 0.025 ±0.002 0.310 (6.4 ±0.4) (2.3 ±0.2) (38.1 ±3.2) (0.64 ±0.05) (7.9) 0.390 ±0.010 0.140 ±0.008 1.50 ±0.125 0.025 ±0.002 0.450 (9.9 ±0.3) (3.6 ±0.2) (38.1 ±3.2) (0.64 ±0.05) (11.4) % Of MIL Spec. Rated Power MIL Spec. Power Derating Chart Ordering Data Sample Part No. 100 55 D 1002 F MIL Style RN55C, 60C & 50C, RN55E, 60E 80 RN RL = Fixed Film Resistor High stability 60 Power Rating 50 = 1/20 watt 55 = 1/10 watt 60 = 1/8 watt RN55D, 60D 40 T.C. Characteristics 20 D = ±100ppm/°C C = ±50ppm/°C E = ±25ppm/°C 0 0 125 150 165 175 Ambient Temperature (°C) Resistance First three digits represent significant figures; fourth digit is number of zeros. Tolerance F = ±1%, D = ±0.5%, B = ±0.1% 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 2 of 2