Service Hotline
To help engineers and end customers accelerate product development and reduce selection/validation costs, Slkor Semiconductor has recently launched a "Free Sample" campaign. This campaign covers 20 popular models, including thyristors (SCRs), gate driver ICs, logic output optocouplers, DC-DC power chips, linear regulators, and MOSFETs.
All products have been mass‑market validated, with mature and stable solutions. They are drop‑in alternatives to first‑tier international brands such as STMicroelectronics (ST), Texas Instruments (TI), Infineon, Broadcom, and ONsemi, and are widely used in switching power supplies, motor drives, industrial control, automotive electronics, communication equipment, and other fields.

Scan the QR code to visit the official Slkor Chinese website
As a company deeply committed to domestic semiconductors, Slkor has focused on the R&D and innovation of three major series – diodes & triodes, power devices, and power management ICs – since its founding in 2015. Leveraging its deep technical expertise, Slkor has introduced over 2,000 semiconductor products and built clear advantages in four areas:
- Solid Technical Strength – The core team comes from Yonsei University (South Korea) and Tsinghua University, mastering SiC MOSFET manufacturing processes and fifth‑generation ultra‑fast recovery power diode core technology.
- Guaranteed Quality – Certified with California 65, ISO9001, RoHS, REACH, etc., the quality system is complete and reliable.
- Controllable Lead Times – As a local Chinese brand, it offers clear advantages in production capacity and supply stability, with friendlier cost structures.
- Smooth Replacement – Device parameters match imported brands; mass‑production verification ensures stability; technical support is provided for debugging.

Based on the above advantages, Slkor is launching this "Free Sample" campaign to support end customers with tangible product assistance, helping projects move forward quickly. The campaign is now live. If you have questions during debugging, please contact Slkor technical support.
[Campaign Rules & How to Apply]
- Eligibility – End customers only.
- Products – 20 designated models (Figure 1). Each model is limited to 10 pieces. The first 100 applicants will be served on a first‑come, first‑served basis, while supplies last.
- Application Limit – One application per company / per person.
- How to apply:
Via the official website: Go to the "About Us" section of Slkor’s Chinese website and fill in the request information (https://www.slkormicro.com/)
By phone: Contact Miss Xie at 0755-23615795
Note: Slkor reserves the right of final interpretation of this campaign.
Free sample request page on Slkor Chinese website
[Sample Cross‑Reference List]
Thyristor (SCR) series – Slkor BTA16-800B, BTA12-600B, BTA41-800B, BTA08-800B: pin‑to‑pin alternatives to STMicroelectronics (ST) equivalents.
Gate driver ICs – Slkor SL27524 (alternative to TI/CC27524), Slkor SL27511A (alternative to TI/CC27511).
Logic output optocouplers – Slkor 6N137S (alternative to onsemi/6N137S), Slkor SLM601 (alternative to Broadcom HCPL-M600-500E).
DC-DC power ICs – Slkor LM2575S-5.0, LM2596S-5.0, LM2576S-5.0, LM2596S-ADJ, LM2596S-12: pin‑to‑pin alternatives to Texas Instruments (TI) equivalents.
Linear regulators – Slkor LM317 (alternative to CJ (Changjiang Electronics) / ST), Slkor SL4949 (alternative to ST L4949).
MOSFETs – Slkor SL9945 (alternative to Infineon BSO615NG), IRFR5305 (alternative to Infineon RFR5305TRPBF).
RS232 transceiver – Slkor SL3232E (alternative to TI/MAX232IDR).
Transistor output optocoupler – Slkor SL247N (alternative to Renesas PS2801C-4-F3-A/M).
Power electronic switch – Slkor BSP75N (alternative to Infineon BSP75N).


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