Capacitor solutions for
equipment repair.
SJ Electric brings approximately 30 years of capacitor supply experience to equipment maintenance and replacement needs.
A replacement developed from the original.
Developed through disassembly and analysis of the imported EC capacitor, with a focus on improved durability and quality. Currently supplied for semiconductor equipment repair.

NY01-3510
For repair teams sourcing a replacement for the EC UE3-15185 K capacitor.
| Rated voltage | 360 VDC |
|---|---|
| Capacitance | 510 µF ±10% |
| Model / marking | NY01-3510 / YW |
| Original model | EC UE3-15185 K |
Please share the equipment model and original part details so that suitability can be reviewed for your application.
Download product overview (.xlsx)Developed through hands-on review.
The project began with analysis of an imported capacitor and the production of initial samples. Installation reviews identified practical fit and connection requirements, which informed refinements before the completed product entered ongoing supply.
01 / Original analysis
Review of the original component and development of replacement samples.
02 / Installation review
Assessment of mechanical clearance, mounting fit and terminal connections in the equipment.
03 / Refined for supply
Refinement of the sample design, followed by completion and repeat supply to repair customers.
Selected product comparison
| Item | Original component | Replacement |
|---|---|---|
| Model | EC UE3-15185 K | YW NY01-3510 |
| Rating | 360 VDC / 510 µF ±10% | 360 VDC / 510 µF ±10% |
| Dielectric film* | Metallized polyester (MPET) | Metallized polypropylene (MPP) |
| Development focus | Reference component | Durability, quality and installation fit |
*Film types are based on the original development comparison records. Detailed application requirements can be discussed by email.
Established relationships. Repeat supply.
Ongoing domestic supply
Repeat supply to two semiconductor equipment repair companies in South Korea.
US-bound supply in 2025
Purchased by a Korean customer for onward shipment to the United States.
Toshiba as the end user
Supply track record through an intermediary, with Toshiba, Japan, as the final end user.
Approximately 30 years
in capacitor supply.
Based in Goyang, South Korea, SJ Electric supplies capacitors for power, motor and equipment applications. We work with customers to review replacement requirements and coordinate supply.
Our product range
- Power-factor correction capacitors & series reactors
- Motor run & motor start capacitors
- Dual capacitors for air conditioners
- Electrolytic & lead-wire capacitors
- Replacement capacitors for equipment repair
Practical answers for repair teams.
Is this the original EC product?
No. NY01-3510 is a replacement product supplied by SJ Electric. The original model is shown for identification and comparison.
How is compatibility reviewed?
Start with the original part number, equipment model and photos. Voltage and capacitance are only part of the review; dimensions, mounting, terminals and operating conditions also need to be considered.
What information is needed for a quotation?
Please provide your company name, country, required quantity, delivery location and target schedule. Pricing and lead time are confirmed for each enquiry.
Can we discuss other capacitor requirements?
Yes. Send the model number, ratings, dimensions and photographs of the part you need. We will review your request and advise on supply options.
Tell us what you need.
Does your team use or replace this capacitor? Contact us to discuss the required specifications, quantity, pricing and lead time.
sjrfq@naver.com ↗Send an enquiry
Please include
- Company name and country
- Original capacitor model and photos
- Equipment model or application
- Required quantity and delivery schedule
- Capacitor dimensions and terminal details, if available