Product Overview
The Ohmite 89 Series Metal-Mite Aluminum Housed Axial Terminal Wirewound resistors are high-performance, molded-construction resistors designed for demanding applications. Featuring a metal housing for chassis mounting and heat-sinking capabilities, these resistors offer high stability (0.5% R) and a high power-to-size ratio. They are well-suited for withstanding vibration, shock, and harsh environmental conditions, making them ideal for applications requiring reliable performance under stress.
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 Sep 2006, no longer Mil. Spec.)
Technical Specifications
| Series | Wattage | Tolerance | Ohmic Value Range | Temperature Coefficient | Dielectric Withstanding Voltage | Overload Rating |
| 805 | 5W | 1%, 5% | 0.10-25K | <1: 90 ppm/C; 1-9.99: 50 ppm/C; 10: 20 ppm/C | 1000 VAC | 5x rated wattage for 5 seconds |
| 810 | 10W | 1%, 5% | 0.10-50K | <1: 90 ppm/C; 1-9.99: 50 ppm/C; 10: 20 ppm/C | 1000 VAC | 5x rated wattage for 5 seconds |
| 825 | 25W | 1%, 5% | 0.010-75K | <1: 90 ppm/C; 1-9.99: 50 ppm/C; 10: 20 ppm/C | 2250 VAC | 5x rated wattage for 5 seconds |
| 850 | 50W | 1%, 5% | 0.005-100K | <1: 90 ppm/C; 1-9.99: 50 ppm/C; 10: 20 ppm/C | 2250 VAC | 5x rated wattage for 5 seconds |
Ordering Information
Non-Inductive versions available by inserting "N" before tolerance code (e.g., 850NF560). Power rating is based on chassis mounting area and temperature stability. Derating is linear from 100% @ +25C to 0% @ +275C. Dimensions have changed as of August 2015.
2411220655_Ohmite-805F75R_C19557230.pdf
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