XL1403 – Darlington Transistor Array – Xinluda

The XL1403 is attributed to Xinluda as a Darlington transistor array driver used to interface low-power logic to relays, lamps, solenoids and other loads. This is a hard-to-find part with limited public documentation. Available on a request-for-quote basis from Pacific Component Xchange.

The XL1403 is attributed to Xinluda (Xinluda Information Technology Co., Ltd.) as a Darlington transistor array driver, belonging to the company’s family of multi-channel load-driver ICs. Xinluda’s Darlington array catalog includes verified parts such as the 7-channel XL1413, XL2003 and XL2004 in SOP-16/DIP-16 packages, and 8-channel devices in the XL28xx series. These devices integrate NPN Darlington pairs to provide a simple, low-component-count way to interface low-power logic outputs to higher-voltage, higher-current loads such as relays, motors, lamps, displays and solenoids.

Important sourcing note: The exact part number “XL1403” could not be confirmed against Xinluda’s published Darlington transistor listing or major distributors (LCSC, JLCPCB) at the time of writing. The closest verified Xinluda device is the 7-channel XL1413. Please confirm the exact marking, package and electrical ratings with our sourcing team before designing in.

Key Features

• Component type: Multi-channel Darlington transistor array driver (per Xinluda Darlington family)
• Manufacturer: Xinluda Information Technology Co., Ltd.
• Package: SOP-16 surface-mount (typical for the family; unverified for this exact part number)
• Family: Xinluda Darlington transistor array drivers (ULN/MC141x-class architecture)
• Typical role: Sink driver for inductive and resistive loads

Note: Pacific Component Xchange publishes only specifications that can be confirmed. Per-channel electrical ratings (output voltage, output current and input thresholds) for the exact XL1403 device are not publicly documented and must be confirmed against the Xinluda datasheet for your specific marking and date/lot code before designing in. Contact us and we will provide the controlled datasheet with your quotation.

Applications

• Relay and solenoid drivers
• Stepper and brushed DC motor drive stages
• Lamp, LED and display segment drivers
• Industrial control and automation I/O
• Home-appliance and white-goods control boards

Why Source XL1403 from Pacific Component Xchange

The XL1403 is a hard-to-find part with little to no authorized-distributor stock in Western markets and limited public documentation, making it a part best secured through a specialist independent distributor. Pacific Component Xchange is an independent distributor focused on hard-to-find and obsolete power-management ICs, drivers and optocouplers. We help engineers and buyers source allocated, end-of-life and Asian-market-only parts with authenticity screening, supply-chain traceability and global shipping.

Request a quote (RFQ) for the XL1403 today and our sourcing team will confirm the exact part marking, availability, lead time, date/lot codes and pricing for your required quantity. Whether you need a handful of units for a repair build or production volumes, we can help you lock in supply of this and related Xinluda Darlington array drivers such as the XL1413.