Resistors-Chassis Mount

Part Number	Description / PDF	Quantity
FVE030020E10R0KE Vishay / Huntington Electric, Inc.	RES CHAS MNT 10 OHM 10% 300W	57
FSOT2011E250R0KE Vishay / Huntington Electric, Inc.	RES CHAS MNT 250 OHM 10% 20W	0
FVT02506E100R0JE Vishay / Huntington Electric, Inc.	RES CHAS MNT 100 OHM 5% 25W	21
FVT20020E1R000JE Vishay / Huntington Electric, Inc.	RES CHAS MNT 1 OHM 5% 225W	0
FVT20020E50R00JE Vishay / Huntington Electric, Inc.	RES CHAS MNT 50 OHM 5% 225W	153
MCRL00451K500JAB00 Vishay / Huntington Electric, Inc.	METAL CASE 45W, 1500 OHMS	0
FVTS10R1E10R00JE Vishay / Huntington Electric, Inc.	RES CHAS MNT 10 OHM 5% 12W	0
FSE100022ER500KE Vishay / Huntington Electric, Inc.	RES CHAS MNT 0.5 OHM 10% 1000W	100
FSOT5509E50R00KE Vishay / Huntington Electric, Inc.	RES CHAS MNT 50 OHM 10% 55W	74
FSOT4009E5K000KE Vishay / Huntington Electric, Inc.	RES CHAS MNT 5K OHM 10% 40W	0
FVTS05R2E5R000JE Vishay / Huntington Electric, Inc.	RES CHAS MNT 5 OHM 5% 5W	0
FVTS10R1E50R00JE Vishay / Huntington Electric, Inc.	RES CHAS MNT 50 OHM 5% 12W	0
FVTS10R1E1K000JE Vishay / Huntington Electric, Inc.	RES CHAS MNT 1K OHM 5% 12W	0
FSOT5509ER2500KE Vishay / Huntington Electric, Inc.	RES CHAS MNT 0.25 OHM 10% 55W	0
FSOT3009E10R00KE Vishay / Huntington Electric, Inc.	RES CHAS MNT 10 OHM 10% 30W	53
FVT05006E500R0JE Vishay / Huntington Electric, Inc.	RES CHAS MNT 500 OHM 5% 50W	129
FVT02506E500R0JE Vishay / Huntington Electric, Inc.	RES CHAS MNT 500 OHM 5% 25W	117
FVTS05R2E4K000JE Vishay / Huntington Electric, Inc.	RES CHAS MNT 4K OHM 5% 5W	0
FSOT5509E1K000KE Vishay / Huntington Electric, Inc.	RES CHAS MNT 1K OHM 10% 55W	566
FVTS05R2E500R0JE Vishay / Huntington Electric, Inc.	RES CHAS MNT 500 OHM 5% 5W	0

Resistors-Chassis Mount

1. Overview

Chassis Mount Resistors are specialized electronic components designed for direct mounting onto equipment chassis or heat sinks. They provide critical functions including current limiting, voltage division, and energy dissipation in high-power applications. Their importance in modern technology lies in enabling thermal management stability and electrical performance in industrial, automotive, and power electronics systems.

2. Major Types and Functional Classification

Type	Functional Features	Application Examples
Wirewound Chassis Mount	High precision, pulse stability, 10-100W power rating	Industrial motor drives, test equipment
Film Type Chassis Mount	Low noise, fast response, 5-50W rating	Communication infrastructure, medical devices
Ceramic Composite Mount	High-temperature resistance, 50-300W rating	EV charging systems, renewable energy inverters

3. Structure and Composition

Typical construction includes:

Aluminum alloy heat-dissipating housing (surface-anodized for insulation)
High-purity ceramic substrate with resistive element (NiCr or TaN)
Multi-layer silicone coating for vibration resistance
Brass/copper alloy mounting terminals (anti-corrosion plated)

Thermal interface materials (TIM) ensure efficient heat transfer to chassis.

4. Key Technical Specifications

Parameter	Importance	Typical Range
Rated Power	Determines thermal handling capacity	5-500W
Resistance Range	Affects current regulation precision	0.1 -100k
Tolerance	Impacts circuit accuracy	0.5% to 5%
Temperature Coefficient	Stability over operating temperature	50-200ppm/ C
Dielectric Strength	Safety insulation performance	1.5-5kV

5. Application Fields

Primary industries include:

Industrial automation (variable frequency drives, PLCs)
Renewable energy (solar inverters, wind turbine converters)
Transportation (EV on-board chargers, railway traction systems)
Telecommunications (base station power amplifiers, data center PSUs)

Case Study: 300W ceramic composite resistors in EV fast chargers enable 15-minute battery charging cycles.

6. Leading Manufacturers and Products

Manufacturer	Representative Product	Key Features
Vishay Precision Group	CPW-100	100W wirewound, 0.1% tolerance
Ohmite Manufacturing	270 series	500W ceramic housing, IP65 rated
Panasonic Electronic	ERJ-P11	Thin-film technology, 100ppm/ C stability

7. Selection Guidelines

Key considerations:

Calculate required power derating (70% of max rating recommended)
Match resistance value with system voltage/current requirements
Evaluate thermal interface compatibility with chassis
Consider environmental factors (humidity, vibration, ambient temperature)
Budget allocation: High-reliability models may cost 2-3 standard versions

8. Industry Trends Analysis

Current development trends include:

Nano-ceramic materials enabling 40% smaller form factors
Integrated temperature sensing resistors for smart power systems
Graphene-enhanced thermal coatings improving heat dissipation by 25%
Automotive-grade models supporting 150 C operating temperatures
Industry 4.0 compatibility with IoT-enabled resistance monitoring

Market projections indicate 8.7% CAGR through 2030 driven by EV and 5G infrastructure demands.