Resistors-Chassis Mount

Part Number	Description / PDF	Quantity
FSOT1011E1K000KE Vishay / Huntington Electric, Inc.	RES CHAS MNT 1K OHM 10% 10W	100
FVTS05R2E3K500JE Vishay / Huntington Electric, Inc.	RES CHAS MNT 3.5K OHM 5% 5W	0
RDSF0100470R0JDBNI Vishay / Huntington Electric, Inc.	100W 470 OHM ROUND-WIRE NON-INDU	0
FSOT4009E100R0KE Vishay / Huntington Electric, Inc.	RES CHAS MNT 100 OHM 10% 40W	0
FVE030020ER800KE Vishay / Huntington Electric, Inc.	RES CHAS MNT 0.8 OHM 10% 300W	0
FSOT2011E5K000KE Vishay / Huntington Electric, Inc.	RES CHAS MNT 5K OHM 10% 20W	0
MCRL004510R00KHB00 Vishay / Huntington Electric, Inc.	RES CHAS MNT 10 OHM 10% 45W	0
FVTS10R1E1K200JE Vishay / Huntington Electric, Inc.	RES CHAS MNT 1.2K OHM 5% 12W	58
FVT05006E25R00JE Vishay / Huntington Electric, Inc.	RES CHAS MNT 25 OHM 5% 50W	664
FSOT3009E1R000KE Vishay / Huntington Electric, Inc.	RES CHAS MNT 1 OHM 10% 30W	92
MCRL01004R000KHB00 Vishay / Huntington Electric, Inc.	METAL CASE 100W, 4 OHMS	68
FVT02506E25K00JE Vishay / Huntington Electric, Inc.	RES CHAS MNT 25K OHM 5% 25W	0
FSOT5509E1R000KE Vishay / Huntington Electric, Inc.	RES CHAS MNT 1 OHM 10% 55W	0
FVTS05R2E75R00JE Vishay / Huntington Electric, Inc.	RES CHAS MNT 75 OHM 5% 5W	337
FSOT1011E1R000KE Vishay / Huntington Electric, Inc.	RES CHAS MNT 1 OHM 10% 10W	0
FVT02506E10R00JE Vishay / Huntington Electric, Inc.	RES CHAS MNT 10 OHM 5% 25W	74
MCRL00455R000KAB00 Vishay / Huntington Electric, Inc.	METAL CASE 45W, 55 OHMS	28
FVTS10R1E100R0JE Vishay / Huntington Electric, Inc.	RES CHAS MNT 100 OHM 5% 12W	0
FVTS10R1E5K000JE Vishay / Huntington Electric, Inc.	RES CHAS MNT 5K OHM 5% 12W	0
FVE030020E16R0KE Vishay / Huntington Electric, Inc.	RES CHAS MNT 16 OHM 10% 300W	295

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.