Resistors-Chassis Mount

Part Number	Description / PDF	Quantity
FSOT2011E1K000KE Vishay / Huntington Electric, Inc.	RES CHAS MNT 1K OHM 10% 20W	0
FVWL20A1E2K000JE Vishay / Huntington Electric, Inc.	RES CHAS MNT 2K OHM 5% 20W	0
FVTS10R1E4K000JE Vishay / Huntington Electric, Inc.	RES CHAS MNT 4K OHM 5% 12W	0
FVTS05R2E125R0JE Vishay / Huntington Electric, Inc.	RES CHAS MNT 125 OHM 5% 5W	0
FVTS10R1E125R0JE Vishay / Huntington Electric, Inc.	RES CHAS MNT 125 OHM 5% 12W	0
FSOT5509E10R00KE Vishay / Huntington Electric, Inc.	RES CHAS MNT 10 OHM 10% 55W	30
RDSF01001K075JDBNI Vishay / Huntington Electric, Inc.	100W 1075 OHM ROUND-WIRE NON-IND	0
FVTS05R2E2K000JE Vishay / Huntington Electric, Inc.	RES CHAS MNT 2K OHM 5% 5W	110
FSOT3009E1R800KE Vishay / Huntington Electric, Inc.	RES CHAS MNT 1.8 OHM 10% 30W	0
FVT05006E50R00JE Vishay / Huntington Electric, Inc.	RES CHAS MNT 50 OHM 5% 50W	0
FVTS10R1E300R0JE Vishay / Huntington Electric, Inc.	RES CHAS MNT 300 OHM 5% 12W	0
FVTS10R1E7K500JE Vishay / Huntington Electric, Inc.	RES CHAS MNT 7.5K OHM 5% 12W	0
FVTS10R1E20R00JE Vishay / Huntington Electric, Inc.	RES CHAS MNT 20 OHM 5% 12W	0
MCRL01002R000KHB00 Vishay / Huntington Electric, Inc.	METAL CASE 100W, 2 OHMS	11
FVTS10R1E2K500JE Vishay / Huntington Electric, Inc.	RES CHAS MNT 2.5K OHM 5% 12W	0
MCRL007011R00JHB00 Vishay / Huntington Electric, Inc.	METAL CASE 70W, 11 OHMS	26
RBEF0300100R0KFB00 Vishay / Huntington Electric, Inc.	300W 100 OHM RIBBON-WIRE FIXED	28
MCRL00451R000KHB00 Vishay / Huntington Electric, Inc.	RES CHAS MNT 1 OHM 10% 45W	0
FSE100022E4R50KE Vishay / Huntington Electric, Inc.	RES CHAS MNT 4.5 OHM 10% 1000W	18
FVT02506E4K000JE Vishay / Huntington Electric, Inc.	RES CHAS MNT 4K OHM 5% 25W	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.