Product Overview
NTE HW443 430kΩ 0.5 Watt Metal Film Flameproof Axial Resistor
Condition
Unused new old stock (NOS). Color bands: Yellow, Orange, Yellow, Red (430kΩ, 2% tolerance). Sold each.
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Product Overview
NTE HW443 delivers a 430k Ohm, 1/2 Watt fixed film resistance stage featuring a protective flameproof coating and standard axial through-hole leads. Rated at ±2% tolerance, this component serves in industrial controls, analog circuitry, and power supply monitors where thermal safety and stable impedance are required.
Key Features
- Resistance value: 430 kΩ
- Power rating: 0.5 Watt (1/2 W)
- Tolerance: ±2%
- Coating: Flameproof film construction
- Mounting: Axial lead through-hole
- Color code: Yellow, Orange, Yellow, Red
Applications
- Replacing high-value feedback or biasing resistors in analog audio amplification stages.
- Maintaining legacy industrial control boards where flameproof ratings are specified for safety.
- Breadboarding and building maker timing circuits or sensor dividers requiring high-impedance passives.
Frequently Asked Questions
What does the flameproof coating do?
Flameproof film resistors are designed not to ignite or sustain an open flame under severe overload conditions, opening safely rather than burning surrounding board materials.
What are the color bands on this resistor?
The bands are Yellow (4), Orange (3), Yellow (10,000 multiplier), and Red (2% tolerance), indicating a nominal resistance of 430,000 Ohms.
What lead spacing or footprint does this axial body require?
With a measured body length of 9 mm, standard through-hole PCB footprints typically accommodate lead-bending centers between 12.5 mm and 15 mm.
A stable, flameproof half-watt resistor is the quiet anchor of any legacy circuit that cannot afford to drift.
