Resistors-Chassis Mount

Part Number	Description / PDF	Quantity
HSC30014R4J TE Connectivity AMP Connectors	RES CHAS MNT 14.4 OHM 5% 300W	25
HSA505R1J TE Connectivity AMP Connectors	RES CHAS MNT 5.1 OHM 5% 50W	445
HSA2534RJ TE Connectivity AMP Connectors	RES CHAS MNT 34 OHM 5% 25W	157
HSA50R075J TE Connectivity AMP Connectors	RES CHAS MNT 0.075 OHM 5% 50W	35
TE500B390RJ TE Connectivity AMP Connectors	RES CHAS MNT 390 OHM 5% 500W	0
TE60B5R6J TE Connectivity AMP Connectors	RES CHAS MNT 5.6 OHM 5% 60W	0
HCF166J10RJ TE Connectivity AMP Connectors	HCF166 160W 10R 5% LEAD	20
TE750B2R7J TE Connectivity AMP Connectors	RES CHAS MNT 2.7 OHM 5% 750W	3
HSC250330RJ TE Connectivity AMP Connectors	RES CHAS MNT 330 OHM 5% 250W	6
THS50560RJ TE Connectivity AMP Connectors	RES CHAS MNT 560 OHM 5% 50W	772
HSC150200RJ TE Connectivity AMP Connectors	RES CHAS MNT 200 OHM 5% 150W	71
HSA10820RJ TE Connectivity AMP Connectors	RES CHAS MNT 820 OHM 5% 16W	0
HSA10150RJ TE Connectivity AMP Connectors	RES CHAS MNT 150 OHM 5% 16W	185
HSA252K5J TE Connectivity AMP Connectors	RES CHAS MNT 2.5K OHM 5% 25W	59
THS1510RJ TE Connectivity AMP Connectors	RES CHAS MNT 10 OHM 5% 15W	573
SQBW303R3JFASTON TE Connectivity AMP Connectors	RES CHAS MNT 3.3 OHM 5% 30W	684
HSA5055RJ TE Connectivity AMP Connectors	RES CHAS MNT 55 OHM 5% 50W	352
HCF166J1K0J TE Connectivity AMP Connectors	HCF166 160W 1K0 5% LEAD	20
TE1000B4R7J TE Connectivity AMP Connectors	RES CHAS MNT 4.7 OHM 5% 1000W	11
TE750B33RJ TE Connectivity AMP Connectors	RES CHAS MNT 33 OHM 5% 750W	10

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.