Resistors-Chassis Mount

Image	Part Number	Description / PDF	Quantity	Rfq
	RBEF013510R00KFB00 Vishay / Huntington Electric, Inc.	RBEF0135 10 10% 3/8L B	0
	RBEF024089R50KFB00 Vishay / Huntington Electric, Inc.	RBEF0240 89.5 10% 3/8L B	0
	RBEF02402R300KFB00 Vishay / Huntington Electric, Inc.	RBEF0240 2.3 10% 3/8L B	0
	RBEF02401R000KFB00 Vishay / Huntington Electric, Inc.	RBEF0240 1 10% 3/8L B	0
	MCRL0100250R0JHB00 Vishay / Huntington Electric, Inc.	RES 250 OHM 100W	0
	AH150100R0JE66 Vishay / Huntington Electric, Inc.	AH150 100 5% E66 E3	0
	RBEF0240R0380JFB00 Vishay / Huntington Electric, Inc.	RBEF0240 .038 5% 3/8L B	0
	RBEF05007R000KGB00 Vishay / Huntington Electric, Inc.	RBEF0500 7 10% 1/2L B	0
	RBEF030033R00KFB00 Vishay / Huntington Electric, Inc.	RES WW 33OHM 300W 10%	0
	FVT16020E30R00JE Vishay / Huntington Electric, Inc.	RES CHAS MNT 30 OHM 5% 175W	0
	AH1002R200JE66 Vishay / Huntington Electric, Inc.	AH100 2.2 5% E66 E3	0
	RBEF050022R00KGB00 Vishay / Huntington Electric, Inc.	RBEF0500 22 10% 1/2L B	0
	RBEF03004R000JFB00 Vishay / Huntington Electric, Inc.	RBEF0300 4 5% 3/8L B	0
	AH07533R00JE66 Vishay / Huntington Electric, Inc.	AH075 33 5% E66 E3	0
	RBEF037510R00KFB00 Vishay / Huntington Electric, Inc.	RBEF0375 10 10% 3/8L B	0
	AH200560R0JE66 Vishay / Huntington Electric, Inc.	AH200 560 5% E66	0
	RBEF030049R00KFB00 Vishay / Huntington Electric, Inc.	RBEF0300 49 10% 3/8L B	0
	RBEF02402R250KFB00 Vishay / Huntington Electric, Inc.	RBEF0240 2.25 10% 3/8L B	0
	AH30015R00JE66 Vishay / Huntington Electric, Inc.	AH300 15 5% E66	0
	AH1502R200JE66 Vishay / Huntington Electric, Inc.	AH150 2.2 5% E66 E3	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.