In scenarios including new energy electronic control systems, industrial inverters, servo drives, energy storage converters, on-board power supplies, rail transit braking systems and high-power industrial control equipment, high power resistors and ultra high power resistors serve as core passive components for current sampling, energy dissipation, load braking and circuit current limiting. The industry generally defines resistors with rated power ranging from 2W to 50W as high power resistors, while those rated 50W and above (including kilowatt-level heavy-duty products) are categorized as ultra high power resistors. Manufactured via alloy plate, wide-terminal thick film, wire-wound aluminum housing and water-cooled packaging technologies, these resistors achieve efficient heat dissipation and high power endurance. Selection requires comprehensive consideration of power margin, temperature coefficient of resistance (TCR), pulse withstand capability, sulfur resistance and long-term operational stability.

Shenzhen Shunhai Technology Co., Ltd., an authorized official distributor of leading global power resistor manufacturers with years of experience in power resistor distribution, maintains sufficient spot inventory of full-range SMD high power resistors and aluminum-housed wire-wound ultra high power resistors. Meanwhile, Huonian Mall supports one-stop online services including part inquiry, parameter comparison, bulk ordering and sample application, covering the whole cycle from R&D prototyping to mass production supply.

A benchmark manufacturer of Japanese precision power resistors, renowned for ceramic-packaged metal plate power resistors featuring excellent impact resistance and heat dissipation, widely adopted for high-precision current sampling in automotive BMS and industrial power supplies.

• BPR Series: Standard high power resistors with flame-retardant ceramic encapsulation, rated power 3W~25W, resistance range 0.1mΩ~1Ω. The 4-terminal Kelvin structure eliminates lead voltage drop and delivers superior TCR performance, ideal for high-power low-voltage sampling applications.
• KTR Series: Upgraded heavy-duty power resistors with enhanced pulse withstand capacity, maximum power extended to 30W, capable of enduring instantaneous large current surges, extensively applied in new energy vehicle electronic control modules.

Specializes in miniaturized high-power wide-terminal thick film shunt resistors. Optimized long-side electrode structures reduce thermal resistance, enabling higher power output within compact packages for downsized electronic control equipment.

• LTR Series: Conventional high power thick film resistors available in 1220~3264 packages, rated power 0.5W~4W, resistance range 10mΩ~1Ω, standard sampling components for household appliances and compact industrial power supplies.
• GMR Series: Metal plate high power shunt resistors, rated power 5W~10W, resistance range 5mΩ~100mΩ, certified to AEC-Q200 automotive standards, suitable for automotive headlights and motor drive power supplies.
• PSR Series: Ultra high power ultra-low resistance resistors with power rating 3W~15W and resistance down to 0.1mΩ, representing the upper power limit among Japanese SMD power resistors, the preferred choice for current detection in large-capacity energy storage modules.

Focuses on automotive-grade high-temperature resistant alloy power resistors with superior environmental tolerance and minimal resistance fluctuation under temperature cycling.

• ERJ-MW Series: SMD high power thick film resistors delivering 3W~6W power in 2512/3920 large packages, coated with anti-sulfuration layer for stable operation in humid and sulfur-containing industrial environments.
• ETQP Series: Metal alloy ultra high power sampling resistors (4W~12W) with 4-terminal structure, mainstream components for on-board OBC and DC-DC converters in new energy vehicles.

Global leader in passive electronic components, offering a comprehensive product portfolio spanning SMD high power resistors to kilowatt-level industrial ultra high power braking resistors, with full certifications for military and rail transit applications. SMD High Power Lineup:

• CRCW-HP Series: Double-sided printed thick film SMD high power resistors (0.5W~1.5W), stable across wide temperature ranges, general-purpose current-limiting devices for industrial circuit boards.

Industrial Ultra High Power Wire-Wound Aluminum Housing Lineup:

• ZWS Series: Standard aluminum-housed wire-wound ultra high power resistors, rated power 6W~250W, non-inductive winding to eliminate high-frequency parasitic inductance, resistance range 0.91Ω~15kΩ, standard for energy dissipation in inverters and servo braking systems.
• ZBS Series: High-power corrugated wire-wound resistors (50W~500W) with enlarged heat dissipation area and outstanding short-time overload tolerance.
• WHB Water-Cooled Series: Kilowatt-level water-cooled ultra high power resistors with continuous power 1.5kW~100kW, dedicated to large-scale energy storage power stations and marine power systems.

Professional manufacturer of industrial heavy-duty ultra high power resistors, focusing on air-cooled and water-cooled high-power braking load resistors for rail transit, lifting machinery and large test equipment.

• WHHB Series: Extruded aluminum-housed water-cooled wire-wound ultra high power resistors with continuous power 1.5kW~100kW, maximum withstand voltage 3500VDC and excellent insulation performance.
• WPCG Grid Power Resistors: Modular array ultra high power resistors with maximum continuous power 3kW and peak short-time overload up to 270kW, core devices for energy braking in elevators and cranes.

Leading Taiwanese manufacturer of SMD power resistors with mature thick film technology, prominent cost performance and stable mass delivery capacity.

• CRH Series: General SMD high power thick film resistors available in 2512, 3920, 5930 mainstream packages, rated power 2W~4W, tolerance options ±1%/±5%, RoHS lead-free compliant, widely used in power adapters and small energy storage modules.
• CUH Series: Ultra high power thickened heat dissipation SMD resistors with 50% higher power rating than CRH within identical packages (3W for 2512 size), lower temperature rise, ideal for fast-charging power supplies and portable energy storage devices.

Specialized in automotive-grade alloy power resistors adopting integrated metal plate forming technology with robust large-current carrying capacity.

• MSHL Series: Compact high power alloy resistors delivering 3W in 2512 package, ultra-low parasitic inductance, for current sampling in automotive DC-DC and headlight control systems.
• MSU Series: 4-terminal ultra high power alloy resistors with maximum power 15W and minimum resistance 0.1mΩ, core components for total current sampling in large-capacity battery packs.

For R&D sample testing, mass production bulk stocking and customized resistors with special power/resistance specifications, please contact Shenzhen Shunhai Technology Co., Ltd. to acquire genuine original factory products. Via Huonian Mall online platform, customers can access complete datasheets, TCR curves and pulse load parameters of all high power resistors and ultra high power resistors anytime. We guarantee authentic products, stable delivery schedules and comprehensive procurement services for electronic manufacturers worldwide.