AP851 OHMITE | Alldatasheet

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Page 1 of 2 2/13.18 AP851 50 Watts TO-220 High Power Resistors A high power TO-220 style resistor package designed for high frequency emitter circuits in switching power supplies. Also used in voltage regulation and low energy pulse loading.

  • 50 Watts at 25˚C case temperature on heat sink
  • Single screw mounting to heat sink
  • Moulded case for proctection and easy to mount
  • Non-inductive design
  • Electrically isolated case
  • RoHS Compliant Electrical Specifications Resistance Value Range Available Tolerance & Pref. Value Ranges Available TCR R1 - 1R J (±5%) K (±10%) Not specified 1R02 - 3R K (±10%) ±300ppm/˚C 3R01 - 10R ±100ppm/˚C ±200ppm/˚C (±5%) K (±10%) ±50ppm/˚C ±100ppm/˚C ±200ppm/˚C Preferred value ranges: Characteristics Power rating: Operating voltage: Dielectric strength: Insulation resistance: Temperature coefficient: Short time overload: Load life: Damp heat with load: Solderability: Thermal shock: Terminal strength: Vibration and high frequency:

2.25 Watts in free air

10GΩ min As specified, referenced to 25˚C, ∆R taken at +105˚C ∆R ±0.3%, 2 times rated power with applied voltage not to exceed 1.5 times maximum continuous operating voltage for 5 seconds ∆R ±1.0%, 2000 hours at rated power ∆R ±0.5%, 40 ±2˚C, 90 - 95% R.H max working voltage for 1000 hours with 1.5 hours “ON” and 0.5 hours “OFF” 90% min coverage, 245 ±5˚C for 3 seconds ∆R ±0.3%, -65˚C - 150˚C, 100 cycles ∆R ±0.2%, 2.4 N ∆R ±0.2%, 20g peak Derating Curve 100 0 25 50 75 100 125 150 175 Power Rated % Case Temperature (°C) www.arcolresistors.com For more information and ordering, please consult

The information contained herein does not form part of a contract and is subject to change without notice. ARCOL operate a policy of continual product development, therefore, specifications may change. It is the responsibility of the customer to ensure that the component selected from our range is suitable for the intended application. If in doubt please ask ARCOL. ARCOL UK Limited, Threemilestone Ind. Estate, Truro, Cornwall, TR4 9LG, UK. T +44 (0) 1872 277431 F +44 (0) 1872 222002 E sales@arcolresistors.com www.arcolresistors.com 2/13.18 Dimensions (mm) 0.045 0.055" (1.14 1.40mm) 0.115 0.135" (2.92 3.44mm) 0.06 0.08" (1.52 2.04mm) 0.19 0.21" (4.82 5.34mm) 0.45 0.55" (11.43 13.97mm) 0.026 0.034" (0.66 0.86mm) 0.10 0.16" (2.54 4.06mm) 0.63 0.65" (16.00 16.52mm) 0.40 0.42" (10.15 10.67mm) 0.115 0.135" (2.92 3.44mm) 0.121 0.129" (3.08 3.28mm) 0.016 0.024" (0.40 0.60mm) AP851 50 Watts TO-220 High Power Resistors 10.15 - 10.67 3.08 - 3.28 1.14 - 1.40 4.82 - 5.34 0.66 - 0.86 2.92 - 3.44 0.40 - 0.60 1.52 - 2.04 2.92 - 3.44 16.00 - 16.52 2.54 - 4.06 11.43 - 13.97 Standard part numbers AP8511RF AP8511RJ AP8512RJ AP8513R3J AP8513R9J AP8514R7J AP85110RF AP85110RJ AP85115RJ AP85125RF AP85125RJ AP85147RJ AP851100RF AP851100RJ AP851220RJ AP851330RJ AP851470RJ AP8511KJ AP85110KJ