Industrial-Grade Braking Solutions
5W to 100kW. Engineered for VFDs, servo drives and renewable energy systems.
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Company Profile
Yiyang Hongyi Electronics Co., Ltd. was founded in 2016. We are a professional resistor manufacturer specializing in heating resistors, wirewound resistors, cement resistors, high-power tubular wirewound resistors and trapezoidal aluminum housed resistors, among other product series.
Our products are widely used across industries such as variable-frequency drives, elevators, cranes, marine, power, welding, power supply, military and railway systems, and can be customized to customer requirements.
With a wide product range and a fair-price, high-volume philosophy, we have earned the trust of many customers and built long-term, stable partnerships with numerous distributors and resellers.
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Engineering Insights
Selection guides, comparisons and reliability analysis from our application engineers.
Selection guideHigh power11 min readHow to Choose a High-Power Braking Resistor — A 2026 Engineer's Guide
Five common sizing mistakes, the formulas you actually need (with worked example), and how to read derating curves correctly.
ComparisonSelection guide9 min readAluminum Housed vs Cement vs Wirewound Resistors — Complete Comparison
Which family fits your application? A 12-parameter table, decision flowchart, and three real-world case studies.
ReliabilityFailure analysis13 min readResistor Failure Modes and Reliability — An Engineer's Guide
Five failure modes, the physics behind each, how to detect them in test, and design rules that yield 100k-hour MTBF in real industrial environments.
Selection guideEV12 min readPre-charge Resistor Design for EV Battery & Energy Storage Systems
Why a 5W cement resistor can absorb 100J pulses, how to size for 800V SiC inverters, and the four failure modes that kill pre-charge resistors in the field.
Selection guideSnubber13 min readSnubber Resistor Selection Guide for SMPS, IGBT Drives & Power Electronics
Why standard wirewound resistors INCREASE ringing, the seven-step RC design with a 1200 V / 100 A IGBT example, and the five mistakes that kill snubbers in the field.
Selection guideLoad bank12 min readLoad Bank Sizing Guide — Generator, UPS & Battery Testing in 2026
How to size a load bank for a 500 kW genset, a 200 kVA UPS, and an exit-sign battery string — with NFPA 110 step-loading profiles and a commissioning checklist.
Frequently asked questions
What types of resistors does Hongyi Electronics manufacture?
Can I order custom resistors based on my own specifications or drawings?
Does Hongyi ship internationally?
What quality certifications does Hongyi hold?
Are samples free? How fast can I get them?
What is the minimum order quantity?
Sample Request
Standard samples are provided free of charge in reasonable quantities (shipped within 2–3 business days). Custom samples are delivered within 2–4 weeks. Please use the form on the right to tell us:
- Company and contact details
- Target part number or key specs (power / resistance / package)
- Application scenario and estimated annual volume
- Shipping address and expected delivery date