Metal mite Ohmite 810F5R0 10 watt axial wirewound resistor with silicone coating and high stability

Product Overview

The 89 Series Metal-Mite is a high-performance, aluminum-housed axial terminal wirewound resistor designed for demanding applications. These resistors offer a high power-to-size ratio, excellent stability (0.5% R), and are built to withstand vibration, shock, and harsh environmental conditions. The metal housing facilitates chassis mounting, providing effective heat-sinking capabilities for high stability during operation. Non-inductive versions are available.

Product Attributes

• Brand: Ohmite
• Series: 89 Series Metal-Mite
• Housing Material: Anodized aluminum
• Internal Coating: Silicone
• Core Material: Ceramic
• Terminals: Solder-coated axial
• Certifications: RoHS Compliant (as of September 2006, no longer offered as Mil. Spec.)

Technical Specifications

Derating and Power Rating

Derating: Linearly from 100% @ +25C to 0% @ +275C.

Power rating is based on chassis mounting area and temperature stability. Proper heat sink requirements:

• 5W and 10W units: 4 x 6 x 2 x .040 Aluminum chassis
• 25W units: 5 x 7 x 2 x .040 Aluminum chassis
• 50W units: 12 x 12 x .059 Aluminum panel

Ordering Information Example

Part Number Structure: 805NF5R0E

• Series: 805 (5 Watt), 810 (10 watt), 825 (25 watt), 850 (50 watt)
• Tolerance: F = 1%, J = 5%
• Non-Inductive Winding: Optional (insert 'N' before tolerance code, e.g., 850NF560)
• Ohmic Value: e.g., R005=0.005, R10=0.1, 1R0=1.0, 250=250, 1K0=1,000, 1K5=1,500, 25K=25,000