Isolation & Interface ICs
Isolation and interface parts sit at every system boundary — and every boundary is a certification requirement. We stock 6,300+ part numbers: optocouplers, capacitive and magnetic digital isolators, CAN/CAN-FD and LIN transceivers, RS-485/RS-232 drivers and level translators.
Broadcom/Avago ACPL optocouplers, ADI ADuM iCoupler, TI ISO series and NXP TJA CAN transceivers are core stock lines with same-day quoting.
Coverage by interface
Optocouplers from classic 4N35-class phototransistors to high-speed logic and gate-drive optocouplers; reinforced digital isolators for medical and industrial mains isolation; CAN, CAN-FD and LIN for automotive and industrial buses; RS-485/232 for long-run serial links.
Automotive-grade TJA transceivers ship with AEC-Q documentation and lot traceability for PPAP-aligned programs.
| Interface type | Typical series | Brands |
|---|---|---|
| Optocouplers | ACPL-0xx, 4N35, gate-drive | Broadcom, Vishay, onsemi |
| Digital isolators | ADuM, ISO7xxx | ADI, TI, Silicon Labs |
| CAN / LIN transceivers | TJA10xx, MCP2551 | NXP, Microchip, TI |
| RS-485 / 232 | MAX485, SP485, ADM | Maxim, TI, ADI |
Certification-ready supply
Isolation parts carry safety approvals (UL, VDE, CSA). We supply original-manufacturer parts with intact certification markings, so your end-product certifications stay valid.
Need reinforced vs basic insulation matched to your creepage spec? Tell us the working voltage and we confirm the correct variant.
Popular isolation & interface parts in stock
| Part Number | Manufacturer | Package | Notes |
|---|---|---|---|
| ACPL-021L-500E | Broadcom | Optocoupler SMD/DIP | Low-power optocoupler, tape |
| ACPL-054L-000E | Broadcom | Optocoupler SMD/DIP | Dual-channel variant |
| ACPL-061L-000E | Broadcom | Optocoupler SMD/DIP | High-speed logic family |
| TJA1020T/CM,118 | NXP Semiconductors | SO/HVSON (typ.) | LIN transceiver |
| TJA1010T/N1,118 | NXP Semiconductors | SO/HVSON (typ.) | High-speed CAN transceiver |
| TJA1020T/N1,112 | NXP Semiconductors | SO/HVSON (typ.) | LIN 2.x automotive grade |
Can't find your part number? Search the full catalog — we source beyond listed stock.
Frequently Asked Questions
Do optocouplers carry safety certifications?
Yes — original parts with intact UL/VDE certification markings.
Can you supply AEC-Q CAN transceivers?
Yes, with AEC-Q documentation and lot traceability.
Reinforced vs basic isolation — can you advise?
Yes, tell us your working voltage and we confirm the correct variant.
What is the lead time?
1–3 days on stocked lines from Hong Kong.
Do you break reels?
Yes, cut tape from one piece.
Can you consolidate with my BOM?
Yes, single shipment and single invoice.
Start an RFQ or upload your BOM — our Hong Kong desk replies within 2 working hours.