OHMITE WH/WN Miniature Wirewound Resistors
OHMITE WH/WN Series Miniature Molded Wirewound Resistors are designed to meet MIL-R-26F and MIL-STD-202 standard requirements. The WH/WN miniature resistors are encapsulated by an epoxy molding compound and offer advanced IC encapsulation mold/die technologies. The WH resistors are the precision series while the WN devices are the Aryton Perry winding non-inductive series with a <1nH inductance at 1MHz. These devices operate from 0.10kΩ to 50KΩ resistance range and -55°C to +150°C temperature range. The WH/WN miniature molded wirewound resistors are widely used in various applications due to their stability, accuracy, and ability to handle high power in a small form factor. Applications include precision circuits, signal conditioning, motor controls, and power supplies.
Features
- Advanced IC encapsulation mold/die technologies
- Available types:
- WH inductive series
- WN Aryton Perry winding non-inductive series
- Encapsulated by an epoxy molding compound
- Meets MIL-R-26F and MIL-STD-202 standards
- Miniature size
- RoHS compliant
- Stainless steel end caps
- Wide operating temperature range
- Wire winding/spot welding manufacturing process by Computer Numerical Control (CNC)
Applications
- Aerospace and defense
- Automotive systems
- Consumer electronics
- Electronics and circuit design
- Industrial equipment
- Medical devices
- Telecommunications
- Test and measurement instruments
Technical Specifications
| Parameters | Values |
|---|---|
| Power rating range | 0.5W to 5W |
| Resistance range | 0.10kΩ to 50KΩ |
| Tolerances | 0.5%, 1.0%, 5.0% |
| Operating temperature range | -55°C to +150°C |
| Temperature coefficients | ±90ppm/°C for 0.100Ω to 0.99Ω |
| ±50ppm/°C for 1.00Ω to 10.00Ω | |
| ±20ppm/°C for >10.00Ω |
