Wirewound Resistors – Through Hole 3watt 1ohm 1% Axial

43F1R0E – 1 Ohm 3W Wirewound Resistor – Ohmite

This Ohmite 43F1R0E axial resistor delivers precise current control and robust power handling for demanding electronic circuits. Part of the reliable Ohmicone® 40 series, it combines ±1% tolerance and stable thermal performance to ensure consistent operation in industrial and power applications. Trust PCX for genuine components backed by fast shipping and expert support.

Key Features

• Resistance: 1 Ohm (±1% tolerance)
• Power Rating: 3W for high-load stability
• Construction: Durable wirewound composition
• Temperature Coefficient: ±50ppm/°C for minimal drift
• Package: Axial through-hole mounting
• Dimensions: 0.220″ Dia x 0.594″ L (5.60mm x 15.10mm)

Technical Specifications

This 3W resistor features a two-terminal axial design for straightforward PCB integration. Its wirewound element provides excellent heat dissipation and surge resistance, while the ±50ppm/°C temperature coefficient ensures reliable performance across varying environmental conditions. Ideal for circuits requiring precise current limiting or voltage division.

Typical Applications

• Power supply current limiting
• Motor control and drive systems
• Audio amplifier circuits
• Industrial automation equipment
• Test and measurement instrumentation

About Ohmite

Ohmite has been a leader in resistive technology since 1925, renowned for engineering robust components that meet rigorous industrial standards. Their expertise in thermal management and material science ensures products deliver exceptional longevity even in high-stress environments.

The company’s commitment to innovation is reflected in series like Ohmicone® 40, which undergo extensive quality validation. Ohmite components are trusted globally for critical applications, from renewable energy to transportation systems.

About Wirewound Resistors

Wirewound resistors use conductive wire coils to achieve precise resistance values and high power ratings. Their construction allows efficient heat dissipation, making them indispensable for circuits handling substantial currents or requiring stability under thermal stress.

Unlike thin-film alternatives, wirewound resistors excel in surge suppression and linearity. They are commonly deployed in power conversion, braking systems, and load testing where accuracy and durability are non-negotiable.

Packaging

Available in Bulk packaging for prototyping or volume production needs.

Frequently Asked Questions

Question: What is the operating temperature range for this resistor?
Answer: While specific range depends on mounting conditions, Ohmite’s Ohmicone® series typically supports -55°C to +200°C operation. Consult the datasheet for derating curves.

Question: Can this resistor handle inrush currents?
Answer: Yes, its wirewound design offers superior surge tolerance compared to carbon or film resistors.

Question: Is the axial package compatible with automated assembly?
Answer: Absolutely. The axial leads facilitate wave soldering and insertion machinery workflows.

Question: How does ±50ppm/°C temperature coefficient affect performance?
Answer: This low coefficient minimizes resistance fluctuation (±0.005% per °C), ensuring stable operation in thermally variable environments.

Question: Where can I access the datasheet?
Answer: Download the full datasheet from PCXCo.com’s product page for detailed specifications and application notes.

Question: Why choose wirewound over other resistor types?
Answer: Wirewound resistors provide higher power ratings, better accuracy, and lower noise – critical for precision power circuits.

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Ensure project continuity with PCX’s same-day shipping on in-stock items. Order your genuine Ohmite 43F1R0E resistors today for reliable performance and unmatched support!