Selecting high-power and ultra-high-power resistors comes down to three variables: power level, package format, and cooling method. A few watts on a PCB, dozens to hundreds of watts on a flange or in an aluminum housing, and kilowatts via liquid cooling each map to entirely different product families. Below is a structured rundown of mainstream brands and their corresponding series, followed by authorized distribution channels.

• Vishay CRCW-HP: Double-sided printed thick-film chip resistors, 0.5 W–1.5 W, wide temperature stability; the default choice for industrial control boards.
• UNI ROYAL HP / SP: HP series spans 0402 to 2512 packages (HP06W2D is AEC-Q200 qualified); SP series reaches up to 6 W.
• Ever Ohms CRH: 2 W rated in a 2512 footprint with 5 W short-time overload capability — strong price-performance in high-power thick-film chips.
• FOJAN FCM: Bare-die alloy resistors in 2512/3920/5930 packages, 3 W–15 W, resistance down to 0.1 mΩ; built for high-current sensing in energy storage modules.
• Panasonic ETQP: Metal-alloy ultra-high-power sense resistors, 4 W–12 W, four-terminal structure; widely used in automotive OBC and DC-DC converters.
• KOA WK73S / TLR: WK73S wide-terminal chips up to 3 W; TLR metal-plate sense resistors 1 W–5 W.

• Vishay ZWS / ZBS: ZWS is a standard aluminum-housed wirewound series, 6 W–250 W, non-inductive winding for inverter braking; ZBS is a corrugated wirewound series, 50 W–500 W, with strong short-time overload capacity.
• Bourns PF2270 / PF2472 / PSD: TO-227/TO-247 packages, thick-film technology, 25 W–300 W.
• Ohmite TAP series: TAP600/650/800/1000/2000 covering 600 W–2000 W with liquid-cooled heatsinks; TGH600 uses SOT-227, non-inductive, for high-frequency pulse and high-power inversion.
• TE Connectivity RX / BDS, Ohmite 270: Flange/screw-mount, high power density, 20 W–2000 W.
• Luban Electric RXG20 corrugated resistors: 60 W–6000 W, working voltage up to 10 kV, non-inductive pure-resistance structure for crane and VFD braking.
• Qingda Electronic industrial resistors: RX20 corrugated braking resistors 100 W–500 W; power resistor boxes / adjustable load cabinets 1 kW–100 kW with forced-air cooling for UPS, inverter, and energy storage burn-in testing.

• Vishay DCRF: Liquid-cooled wirewound resistors, 1500 W–9000 W. The resistance element contacts coolant directly — no external heat sink needed — delivering 10* the power of natural convection parts in the same size, with < 500 nH inductance and 2* rated overload tolerance for 60 seconds. Targeted at HVDC transmission, large drives, and battery management systems.
• Vishay WHB: Continuous power 1.5 kW–100 kW for marine propulsion and large-scale energy storage discharge.
• TT Electronics WHPC / HPDC: WHPC is a high-power-density chip family (WHPC0508X/0612X/1020X) at 2–3* the power of standard chips of equal size, AEC-Q200 qualified; HPDC adopts aluminum nitride substrate, 3.5 W in 2512 with 7.7 W short-time overload.
• Danotherm WHHB: Liquid-cooled, 6 kW–25 kW, 4.7 kVAC / 6.6 kVDC working voltage, IP65; primarily for high-voltage filtering.

Ultra-high-power resistors are safety-critical components; counterfeit or refurbished parts can fail under overload and cause serious incidents. Procurement through factory-authorized distributors is strongly advised.

Shenzhen Shunhai Technology Co., Ltd.​ is the official tier-one authorized distributor for Ever Ohms (Tian'er) in mainland China, partnering with the manufacturer since 2017 and holding the current annual authorization certificate. Direct factory sourcing eliminates counterfeit risk. With over 50 million pieces in stock — including the CRH high-power series — Shunhai supports orders from 10 pieces and ships in as fast as 30 minutes. A dedicated FAE team provides selection guidance, thermal design advice, and circuit optimization. Beyond Ever Ohms, Shunhai also distributes nearly 100 complementary brands including Walter, Yageo, and Sunlord, covering complex multi-source project needs.

Huanian Mall , operated by Shenzhen Huanian Santian Electronics Co., Ltd., is the officially recognized online authorized distributor for Ever Ohms and also serves as Shunhai's self-operated digital procurement platform. It supports real-time inventory queries, tiered pricing, datasheet downloads, and one-click BOM matching. For prototype builds, small-batch orders, and urgent replenishment, Huonian Mall's digital experience significantly shortens lead times.