HTR Wirewound Resistors
Quick Overview
Wirewound Resistors
A wirewound resistor serves as an electrical passive component crucial for current limitation. Its resistive element consists of an insulated metallic wire wound around a non-conductive core material. Typically, the wire comprises high-resistivity alloys like Nickel-chromium (Nichrome) or Manganin, a copper-nickel-manganese alloy. Core materials commonly include ceramic, plastic, and glass. Despite being the oldest resistor type still in production, wirewound resistors remain indispensable across commercial and industrial sectors.
Details
Wirewound resistors have stood the test of time, finding extensive applications in commercial and industrial settings, whether for voltage regulation, inrush current restriction, or functioning as heaters and fuses. In electric and hybrid vehicles, they serve as pre-charge and discharge resistors.
Resistors represent the most prevalent and recognizable passive electrical components, with various resistor technologies deployed across commercial, industrial, automotive, and military domains.
HTR offers a large selection of wirewound resistors available in axial leaded through-hole and surface-mounted packages. Crafted by winding high-performance resistive alloy wire around a low thermal resistance ceramic core, these resistors boast superior pulse capability and are offered in non-inductive configurations.
HTR's wirewound power resistors are engineered to ensure dependable control over current and voltage. The company manufactures three main types: chassis mount, surface mount, and through-hole resistors. Additionally, HTR produces cement-encased wirewound power resistors.
HTR's cement-encased wirewound power resistors provide robust circuit protection in demanding applications, including industrial machinery and hybrid and electric vehicles. These resistors belong to the Ceramic Encased Resistor category, characterized by features such as high stability vertical mounting brackets, availability of fiberglass and ceramic cores, ceramic encasement for insulation and low surface temperature, impulse variants, and non-inductive types. They find utility in both industrial and consumer electronics applications.
Features:
- Non-Inductive Ayrton Perry Winding
- Pure Copper Tinned Leads
- Hi quality Silicon Coated Type
- Flame retardant coating compatible
- TCR as low as +20ppm/°C
- Pure AudioGrade Construction
Applications
- Telecommunication Base stations
- Audio equipment
- Medical equipment
- Industrial equipment
- Smart meters
- Renewable energy
- Industrial
- Power supplies/chargers
- Lighting
- Instruments/gauges
- White goods
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