Resistors-Chassis Mount

Part Number	Description / PDF	Quantity
NHSC300100RJ TE Connectivity AMP Connectors	RES CHAS MNT 100 OHM 5% 300W	0
THS25270RJ TE Connectivity AMP Connectors	RES CHAS MNT 270 OHM 5% 25W	65
HSC10056RJ TE Connectivity AMP Connectors	RES CHAS MNT 56 OHM 5% 100W	10
HSA5039RJ TE Connectivity AMP Connectors	RES CHAS MNT 39 OHM 5% 50W	20
TE750B6R8J TE Connectivity AMP Connectors	RES CHAS MNT 6.8 OHM 5% 750W	0
TJT2504R7J TE Connectivity AMP Connectors	RES CHAS MNT 4.7 OHM 5% 250W	6
HSA2524KJ TE Connectivity AMP Connectors	RES CHAS MNT 24K OHM 5% 25W	101
THS25R47J TE Connectivity AMP Connectors	RES CHAS MNT 0.47 OHM 5% 25W	233
HSC100120RJ TE Connectivity AMP Connectors	RES CHAS MNT 120 OHM 5% 100W	0
HSC20080RJ TE Connectivity AMP Connectors	RES CHAS MNT 80 OHM 5% 200W	40
TE750B100RJ TE Connectivity AMP Connectors	RES CHAS MNT 100 OHM 5% 750W	32
HCF216J470RJ TE Connectivity AMP Connectors	HCF216 200W 470R 5% LEAD	10
HSC300680RJ TE Connectivity AMP Connectors	RES CHAS MNT 680 OHM 5% 300W	12
HSC1501K8K TE Connectivity AMP Connectors	RES CHAS MNT 1.8K OHM 10% 150W	18
HSC100150RJ TE Connectivity AMP Connectors	RES CHAS MNT 150 OHM 5% 100W	40
HSA501R8F TE Connectivity AMP Connectors	RES CHAS MNT 1.8 OHM 1% 50W	131
HSA10R20F TE Connectivity AMP Connectors	RES CHAS MNT 0.2 OHM 1% 16W	62
BDS2A1002K2K TE Connectivity AMP Connectors	RES CHAS MNT 2.2K OHM 10% 100W	0
HSA2510RF TE Connectivity AMP Connectors	RES CHAS MNT 10 OHM 1% 25W	170
THS10330RJ TE Connectivity AMP Connectors	RES CHAS MNT 330 OHM 5% 10W	247

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.