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- Manufacturer or author: Provided By ALLDATASHEET.COM(FREE DATASHEET DOWNLOAD SITE)
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Technical content
thermal fuse built-in resistors
features
- Marking: Ceramic body with alpha/numeric marking
- Products with lead-free terminations meet EU RoHS requirements. Pb located in glass material, electrode and resistor element is exempt per Annex 1, exemption 5 of EU directive 2005/95/EC C: SnCu5N 10N See table below WF Type Style Terminal Surface Temperature Thermal Fuse Symbol New Part # 5N 8C 3 digits Nominal Resistance 100 D ø d W P 4.5+2 H Ceramic Case Cement Thermal Fuse Resistor Lead Wire dimensions and construction W 1.00±.059 (25.5±1.5)WF5N DHP d (R. Lead) Dimensions inches(mm) Type
ordering information
G:Glass core wire wound S: Metal oxide film Resistor Material G .197+.079 -.039 (5 +2 )-1WF7N .512±.039 (13.0±1.0) WF10N .295+.079 -.039 (7.5+2 )-1 .031 (0.8) 1.38±.059 (35±1.5) .472±.039 (12±1.0) .630±.039 (16.0±1.0) d (Fuse Lead) .354±.039 (38.5±1.5) 2A: 0.6 10A: 1.0 J: ±5% K: ±10% Resistance Tolerance K EU * Other combination of thermal cut-off temperatures and resistance values are available on request Thermal Fuse Symbol Thermal Fuse Power Rating (W) Resistance Tolerance Maximum Working Voltage Maximum Overload Voltage applications and ratings 152±2 188 226 10A 1.6 1.6 2.0
2.0 J: ±5% E=
√ P • R E= √ P • R • 6.25 2.0 2.0 2.4 2.4 2.5 2.5 3.5 3.5 32 110±2 1.2 1.4 –– 129±2 (STD) Thermal Cut-off Temp. Current Rating Voltage Rating 5N 10N7N J: ±5% K: ±10%250V Resistance Range/Material 110 - 10k (E24) G: Glass Core Wirewound S: Metal Oxide Film S: Metal Oxide Film G: Glass Core Wirewound 1 - 100 (E24) 130±2 (STD) 146 1.6 1.6 2.0 2.0 185KOA Speer Electronics, Inc.• 199 Bolivar Drive • Bradford, P A 16701 • USA • 814-362-5536 • Fax: 814-362-8883 • www.koaspeer.com Specifications given herein may be changed at any time without prior notice. Please confirm technical specifications before you order and/or use.1/06/09 circuit protection
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186 KOA Speer Electronics, Inc.• 199 Bolivar Drive • Bradford, P A 16701 • USA • 814-362-5536 • Fax: 814-362-8883 • www.koaspeer.com Specifications given herein may be changed at any time without prior notice. Please confirm technical specifications before you order and/or use.5/13/08 circuit protection WF thermal fuse built-in resistors Derating Curve environmental applicationsPercent Rated Power (%) 100 Ambient Temperature (˚C) -25 -20 0 204 0 80 1001 201 401 60 75 89 1001 331 47 10˚ 8˚ 12˚ 14˚ P Temp. Symbol Temperature Rise 200 100 2 6 8 Load Power (W) 150 Temperature Rise (deg) 10N Measuring Point Performance Characteristics Parameter Requirement Limit Typical Test Method T.C.R. Resistance +25°C/-55°C and +25°C/+125°C 25°C ±250 x 10-6/K (G) ±300 x 10-6/K (S) Within specified tolerance Overload (Short Time) Rated voltage x 6.25 for 5 seconds±2% ±1.8% Percent Rated Power (%) 100 Ambient Temperature (˚C) -25 -20 0 204 0 80 1001 201 401 60 759 1 1 05 32˚ 35˚ 34˚ 689 5 33˚ T Temp. Symbol Resistance to Soldering Heat 350°C ± 10°C, 3.5 seconds±1% ±0.9% Moisture Resistance 40°C, 90% - 95% RH, 500 hours, No load±5% ±4.5% Load Life Rated voltage, 25°C, 1000 hours, 1.5 hr ON, 0.5 hr OFF cycle±5% ±4.5% For resistors operated at an ambient temperature of 25°C or above, a power rating shall be deleted in accordance with the above rating curves.