resistors RW coat insulated miniature precision power wirewound resistors EU features • Resistors meeting MIL-R-26E (U and V characteristics) and surface temperature (hot spot) 350°C max. • Resistors with a wide range of 0.1Ω ~ 62kΩ, covering applications from precision to power • RW N type resistors are non-inductive wound and can be used in high frequency applications. • Marking: Black body color with alpha-numeric marking • Products with lead-free terminations meet EU RoHS and China RoHS requirements dimensions and construction L Ceramic Core l l t Type d D Insulation Coating Resistive Wire Electrode Lead Cap Wire L Dimensions inches (mm) D d (nom.) .138+.039 -0 (1.6+1.0 ) -0 RW1/2, RW1/2N .315±.039 (8.0±1.0) RW1, RW1N .413±.039 .106±.039 (10.5±1.0) (2.7±1.0) RW2, RW2N .512±.039 .205±.039 (13.0±1.0) (5.2±1.0) RW3, RW3N .650±.039 .252±.039 (16.5±1.0) (6.4±1.0) RW5, RW5N .866±.039 (22±1.0) .307±.059 1.24±.039 (7.8±1.5) (31.5±1.0) RW7, RW7N RW10, RW10N l .020 (0.5) .031 (0.8) 1.50±.118 (38.0±3.0) .039 (1.0) 1.81±.059 .366±.089 (46.0±1.5) (9.3±1.5) ordering information Pb Free Type RW Type 1/2 N T 103 Power Rating 1/2: 0.5W 1: 1W 2: 2W 3: 3W 5: 5W 7: 7W 10: 10W Winding Method Nil: Standard winding N: Non-inductive winding Termination Material T: Sn Nominal Resistance ±3%, ±5%: 2 significant figures + 1 multiplier “R” indicates decimal on value <10Ω ±0.5%, ±1%: 3 significant figures + 1 multiplier “R” indicates decimal on value <100Ω Packaging quantity: RW1/2 ~ RW1: 1,000 pieces RW2 ~ RW7: 500 pieces RW10: 300 pieces Specifications given herein may be changed at any time without prior notice. Please confirm technical specifications before you order and/or use. 142 J Tolerance D: ±0.5% F: ±1% H: ±3% J: ±5% 11/19/08 KOA Speer Electronics, Inc. • 199 Bolivar Drive • Bradford, PA 16701 • USA • 814-362-5536 • Fax: 814-362-8883 • www.koaspeer.com coat insulated miniature precision power wirewound resistors applications and ratings Resistance Range (Ω) D±0.5% F±1% H±3% J±5% (E24 • E96 (E24 • E96 (E24 & (E24 & 25x10n •50x10n) 25x10n •50x10n) 25x10n •50x10n) 25x10n •50x10n) Power Rating Part Designation RW1/2 RW1/2N RW1 RW1N RW2 RW2N RW3 RW3N RW5 RW5N RW7 RW7N U V 0.5W — 1.0W — 2.0W 3.0W 3.0W 5.0W 5.0W 7.0W 7.0W 10W 10W 14W RW10 RW10N T.C.R. (ppm/°C) 10 - 2.61k 10 - 2.61k 0.47 - 2.7k 0.47 - 2.7k — 10 - 2.37k 10 - 2.4k 10 - 2.4k 1 - 5.11k 1 - 5.11k 0.1 - 5.1k 0.1 - 5.1k — 10 - 3.74k 10 - 3.6k 10 - 3.6k 1 - 10k 1 - 10k 0.1 - 10k 0.1 - 10k — 15 - 10k 10 - 10k 10 - 10k ±20:R≥10Ω 1 - 15k 1 - 15k 0.1 - 15k 0.1 - 15k — 15 - 15k 15 - 15k 15 - 15k ±50:1Ω≤R <10Ω 1 - 30.1k 1 - 30.1k 0.1 - 30k 0.1 - 30k ±90:R<1Ω — 20 - 29.4k 20 - 30k 20 - 30k 1 - 45.3k 1 - 45.3k 0.1 - 47k 0.1 - 47k — 36 - 44.2k 36 - 43k 36 - 43k 1 - 60.4k 1 - 60.4k 0.1 - 62k 0.1 - 62k — 62 - 49.9k 62 - 51k 62 - 51k Max. Working Voltage Max. Overload Voltage 80V 150V 130V 300V 140V 500V 200V 600V 400V 700V 600V 800V 1000V 1500V Operating Temperature Range: Characteristic U: -55°C ~ +275°C, V: -55°C ~ +350°C environmental applications Surface Temperature Rise Surface Temperature Rise (°C) % Rated Power 100 80 60 V U 40 20 0 -100 -50 -55 0 50 100 150 200 25 250 300 275 350 350 Frequency Characteristics RW1 1000 RW1/2, RW1, RW3, RW5 300 RW7, RW10 250 800 RW2 200 Resistance (Ω) Derating Curve 150 100 600 RW1N 400 RW1 50 0 200 0 40 80 120 160 200 Power Rating Ratio (%) (Characteristics U) Ambient Temperature (°C) 0 RW1N RW1 RW1N 1 10 100 1k 10k 100k 1M 10M 100M Frequency (Hz) Performance Characteristics Parameter Resistance T.C.R. Overload (Short time) Resistance to Solder Heat Requirement ∆ R ±(% + 0.05Ω) Within regulated tolerance Within specified T.C.R. 0.2%: U Test Method 25°C U: +25°C/-55°C, +25°C/+125°C and +25°C/+275°C V: +25°C/-55°C, +25°C/+125°C and +25°C/+350°C Rated power x 5 or Max. overload voltage, whichever is lower for 5 seconds 2%: V Rated power x 10 or Max. overload voltage, whichever is lower for 5 seconds 0.1% 350°C ± 10°C, 3 seconds ± 0.5 seconds or 260°C ± 5°C, 10 seconds ± 1 second Moisture Resistance 0.2%: U 2%: V Power rating x 1/10, 40°C, 90 - 95% RH, 1000 hours, 1.5 hr ON/0.5 hr OFF cycle Endurance @ 25°C 0.5%: U 3%: V 25°C, 2000 hours 1.5 hr ON/0.5 hr OFF cycle 0.2%: U 275+5 -0 °C, 250 hours 2%: V 350+5 -0 °C, 250 hours High Temperature Exposure Specifications given herein may be changed at any time without prior notice. Please confirm technical specifications before you order and/or use. 1/30/11 KOA Speer Electronics, Inc. • 199 Bolivar Drive • Bradford, PA 16701 • USA • 814-362-5536 • Fax: 814-362-8883 • www.koaspeer.com 143 resistors RW