Resistors-Chassis Mount

Part Number	Description / PDF	Quantity
TE750B1R5J TE Connectivity AMP Connectors	RES CHAS MNT 1.5 OHM 5% 750W	10
THS75100RJ TE Connectivity AMP Connectors	RES CHAS MNT 100 OHM 5% 75W	38
TE80B68RJ TE Connectivity AMP Connectors	RES CHAS MNT 68 OHM 5% 80W	17
HSC1006K0J TE Connectivity AMP Connectors	RES CHAS MNT 6K OHM 5% 100W	3
TE600B2R7J TE Connectivity AMP Connectors	RES CHAS MNT 2.7 OHM 5% 600W	8
SQBW2068RJ TE Connectivity AMP Connectors	RES 68 OHM 20W 5% RADIAL	460
THS154K7J TE Connectivity AMP Connectors	RES CHAS MNT 4.7K OHM 5% 15W	26
THS50R10J TE Connectivity AMP Connectors	RES CHAS MNT 0.1 OHM 5% 50W	28
BDS2A1002R2K TE Connectivity AMP Connectors	RES CHAS MNT 2.2 OHM 10% 100W	34
HSA25332RF TE Connectivity AMP Connectors	RES CHAS MNT 332 OHM 1% 25W	179
HSA505K6J TE Connectivity AMP Connectors	RES CHAS MNT 5.6K OHM 5% 50W	352
HSC1005R6J TE Connectivity AMP Connectors	RES CHAS MNT 5.6 OHM 5% 100W	149
SQBW20220RJ TE Connectivity AMP Connectors	RES 220 OHM 20W 5% RADIAL	871
TE600B6R8J TE Connectivity AMP Connectors	RES CHAS MNT 6.8 OHM 5% 600W	11
HSA5620RJ TE Connectivity AMP Connectors	RES CHAS MNT 620 OHM 5% 10W	115
THS5015RJ TE Connectivity AMP Connectors	RES CHAS MNT 15 OHM 5% 50W	0
THS1075RJ TE Connectivity AMP Connectors	RES CHAS MNT 75 OHM 5% 10W	54
HSA54K7J TE Connectivity AMP Connectors	RES CHAS MNT 4.7K OHM 5% 10W	50
HSA504K7J TE Connectivity AMP Connectors	RES CHAS MNT 4.7K OHM 5% 50W	196
THS10100RJ TE Connectivity AMP Connectors	RES CHAS MNT 100 OHM 5% 10W	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.