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850FR20E

SKU: 850FR20E

Regular price ₹ 2,153.70
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Wirewound Resistors - Chassis Mount (Part Number: 850FR20E)

Manufactured by OHMITE MANUFACTURING in MX, the 850FR20E is a high-performance wirewound resistor designed for chassis mounting applications. These resistors feature a durable aluminum housing and are suitable for environments requiring vibration, shock resistance, and high stability.

Product Features

  • High stability with ±0.5% resistance tolerance
  • High power-to-size ratio for efficient thermal management
  • Metal housing allows secure chassis mounting and provides heat sinking capabilities
  • RoHS compliant
  • Available in non-inductive versions (insert “N” before tolerance code)

Specifications

Series Wattage Ohms Voltage
210 5W 0.10-25K 320V
320 10W 0.10-50K 810V
520 25W 0.010-75K 825V
1170 50W 0.005-100K 850V

Electrical and Mechanical Characteristics

  • Housing: Anodized aluminum
  • Internal Coating: Silicone
  • Core: Ceramic
  • Terminals: Solder-coated axial
  • Derating: Linearly from 100% @ +25°C to 0% @ +275°C
  • Tolerance: ±1% and ±5% (other tolerances available)
  • Power Rating: Based on chassis mounting area and temperature stability
  • Maximum Ohmic Values: Refer to detailed datasheet
  • Overload Capability: 5 times rated wattage for 5 seconds
  • Temperature Coefficient: Under 1Ω: ±90 ppm/°C; 1-9.99Ω: ±50 ppm/°C; 10Ω and over: ±20 ppm/°C
  • Dielectric Withstanding Voltage: 5W and 10W units: 1000 VAC; 25W and 50W units: 2250 VAC

Physical Dimensions

Dimension 805 Series 810 Series 825 Series 850 Series
A (max.) 0.65" / 16.5mm 0.83" / 21.0mm 1.10" / 28.0mm 1.10" / 28.0mm
B (max.) 1.18" / 30.0mm 1.44" / 36.5mm 2.01" / 51.0mm 2.85" / 72.5mm
C (max.) 0.35" / 8.8mm 0.43" / 11.0mm 0.58" / 14.8mm 0.58" / 14.8mm
D (max.) 0.33" / 8.5mm 0.44" / 11.2mm 0.56" / 14.2mm 0.56" / 14.2mm
J (max.) 0.63" / 15.9mm 0.78" / 19.9mm 1.07" / 27.3mm 1.93" / 49.1mm
K (max.) 0.44" / 11.3mm 0.56" / 14.3mm 0.72" / 18.3mm 1.56" / 39.7mm
L (max.) 0.49" / 12.4mm 0.63" / 15.9mm 0.78" / 19.8mm 0.84" / 21.4mm
Other dimensions See datasheet for detailed measurements

Ordering Information

Example: 805NF5R0E

  • Series: 805 = 5 Watt
  • Tolerance: F = 1%, J = 5%
  • Ohms: R005 = 0.005Ω, R10 = 0.1Ω, 1R0 = 1.0Ω, etc.

Additional Information

  • RoHS compliant
  • Non-inductive winding available (optional)

For detailed specifications and additional options, please refer to the datasheet.

Note: The datasheet was not processed. Please search the internet for the part number for more details.

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