Wirewound Resistors

General purpose, precision, non-inductive, fusing, pulse-withstand, and high-power metal clad & ceramic housed solutions.

MHL — Metal Clad Wirewound Resistor

Mounting: Metal Clad (Chassis / Heatsink)
Power: 60–1000 W
Options: Non-Inductive versions available
Range: 0.1 Ω – 100 kΩ

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WW — General Purpose & Precision Wirewound (Axial)

Mounting: Axial, Conformal Coated
Power: 0.4–10 W
Use: General purpose / precision

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WWS — Miniature Wirewound (Higher Power in Small Size)

Mounting: Axial, Conformal Coated
Notes: Mini size at higher power rating

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MWW — Molded Precision Wirewound (Axial)

Mounting: Axial, Molded
Power: 1–10 W
Use: General purpose & precision

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NWW — Non-Inductive Wirewound (Axial)

Mounting: Axial, Conformal Coated
Power: 0.4–10 W
Feature: Non-inductive winding

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WWP — Pulse Withstanding Wirewound

Mounting: Axial, Conformal Coated
Power: 3–10 W
Capability: Energy handling up to 583 J

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WRC — Conformal Coated Welded Wirewound

Mounting: Axial, Conformal Coated
Power: 1–5.5 W
Range: 0.01 – 680 Ω

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SP — Conformal Coated Fusing Wirewound

Series: SP3A
Power: 4 W
TCR: 20 ppm/°C
Range: 10 – 100 Ω

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WWF — General Purpose Fusing Wirewound

Mounting: Axial, Conformal Coated
Power: 0.5–13 W
Feature: Fuses quickly under overload
Range: 10 – 150 kΩ

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RWT — Thermal Fusing Vertical Mount Wirewound

Mounting: Vertical (Ceramic housed)
Power: 2–7 W
Fuse Point: 142 °C, 2 A
Range: 1 – 470 Ω

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WCB — Ceramic Housed with Axial Leads (Wirewound)

Mounting: Ceramic Housed, Axial
Power: 5–25 W
Range: 0.1 – 20 kΩ

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WCBF — Ceramic Housed Axial Wirewound with Standoffs

Mounting: Ceramic Housed, Axial + Standoffs
Power: 5–25 W
Notes: Standoffs for elevated mounting

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NCB — Non-Inductive Ceramic Housed Axial (Ayrton-Perry)

Mounting: Ceramic Housed, Axial
Power: 5–25 W
Feature: Non-inductive winding

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VM — Ceramic Housed Vertical Mount Wirewound

Mounting: Vertical (Ceramic housed)
Power: 2–10 W
Range: 0.056 – 680 Ω

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WVM — Vertical Mount Precision Wirewound

Mounting: Vertical (Ceramic housed)
Power: 5–10 W
Range: 0.1 – 8 kΩ

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TR — TO-220 / TO-247 Style Power Leaded

Package: TO-220 / TO-247
Power: 30–100 W
Range: 0.05 Ω – 100 kΩ
Notes: See application notes

Specification Sheet Heatsinking Advice

SM — Surface Mount Wirewound (Discontinued)

Mounting: Surface Mount
Power: 1–4 W
Status: Discontinued — not for new designs

Specification Sheet Discontinuation Notice