Replacing VISHAY/TE/KOA with HXO: Do You Need to Modify Your Circuit Board?

HXO Resistor · Import Substitution Guide · July 2026

"Will switching to a Chinese alternative require circuit board modifications?" This is one of the most common questions we receive from overseas buyers. Many customers are accustomed to imported brands and have concerns about compatibility — worried it won't fit, will require redesign, or add extra work.

Direct answer: HXO IG series replaces VISHAY/TE/KOA and other imported brands in the vast majority of cases without any circuit board modifications. Pin spacing, dimensions, resistance, and power ratings are fully compatible — direct drop-in replacement.

Why No Circuit Changes Are Needed

Ignition coil suppressor resistors are standardized components. Unlike IC chips with hundreds of package types, suppressor resistor dimensions, pin spacing, and nominal values are globally standardized:

Pin spacing: Standard 5mm/10mm/15mm — HXO covers all common spacings
Dimensions: Axial lead type, identical to imported brands
Nominal resistance: 4.7kΩ/5.1kΩ/10kΩ etc. — E-series standard values, globally used
Power ratings: 3W/5W/7W/10W — same ratings, direct replacement

✅ Verified by customers: HXO has completed substitution validation with 3 ignition coil manufacturers, with 100% pass rate. Customers soldered IG series directly into existing PCB holes — no circuit design changes needed, all test results passed.

Three-Step Replacement Process

Provide your current model number — Tell us the imported brand and model you're using (e.g., VISHAY RTO series, TE CPF series, etc.)
Get matched replacement — We recommend the corresponding IG series model, with pin spacing, resistance, power, and certification comparison
Sample validation — Free 5-piece sample shipment. Test in your application, then proceed with bulk ordering

Cross-Reference Table (Sample)

Imported Model	Rating	HXO Replacement	Certification	Verified
VISHAY RTO 5W 4.7kΩ	4.7kΩ / 5W	IG-C 5W 4.7kΩ	AEC-Q200 Standard	✅ Done
TE CPF 3W 10kΩ	10kΩ / 3W	IG-C 3W 10kΩ	AEC-Q200 Standard	✅ Done
KOA RK 5W 5.1kΩ	5.1kΩ / 5W	IG-C 5W 5.1kΩ	AEC-Q200 Standard	✅ Done
VISHAY RTO 7W 10kΩ	10kΩ / 7W	IG-S 7W 10kΩ	AEC-Q200 Full Grade	✅ Done
TE Hi-Temp 10W 5kΩ	5kΩ / 10W	IG-S 10W 5kΩ	AEC-Q200 Full Grade	✅ Done

The Only Case to Watch

⚠️ Special case: Some imported brands use non-standard pin spacing (e.g., 6.35mm imperial size) or non-E-series resistance values. In these cases, check pin compatibility first.

Solution: HXO supports custom pin spacing and resistance values. Custom samples available in 7-10 days.

Comprehensive Comparison

Factor	Imported Brands	HXO IG Series
Price	Baseline	30-50% lower
Lead Time	8-12 weeks	7-15 days
AEC-Q200	Yes	Yes (Standard/Full Grade)
Pulse Withstand	30kV~40kV	25kV~40kV
Samples	Long process, charged	Free 5 pcs, fast turnaround
Tech Support	Email mainly, slow response	Email/phone/WhatsApp, 2-hour reply
Customization	High门槛, long cycle	7-10 day samples, flexible

Need a replacement solution? Send us your model numbers

Provide your current imported brand model numbers for a free matching solution and samples

📧 Send Model Info 📞 Call Us

← Back to Home