Xinluda (Xinluda Information Technology Co., Ltd.) Electronic Parts
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The Xinluda XL2004 is a high-voltage, high-current Darlington transistor array containing seven open-collector Darlington pairs with common emitters. Supplied in a compact SOP-16 package, it is functionally and pin-compatible with the widely used ULN2004 family, making it a convenient drop-in option for relay, lamp, display, and inductive-load driving in cost-sensitive designs. Each driver integrates a freewheeling clamp diode for switching inductive loads, and inputs are positioned opposite the outputs to simplify PCB layout.
The XL2004 variant is specified with a 10.5 kΩ series input base resistor that allows the inputs to be driven directly from CMOS and PMOS logic operating at supply voltages in the 6 V to 15 V range, complementing the TTL/5 V CMOS-oriented XL2003/ULN2003 variant of the same family.
The Xinluda XL2004 has little to no authorized-distributor coverage in North America and the EU, which can stall builds when a BOM calls for this specific part. Pacific Component Xchange is an independent distributor specializing in hard-to-find and obsolete power-management ICs, logic, and optocouplers. We help engineering and procurement teams secure niche parts like the XL2004 with authenticity verification, global shipping, and responsive sourcing support. Request a quote (RFQ) today and our team will confirm current stock, lead time, and pricing for the quantities you need.
The XL2004 is a high-voltage, high-current Darlington transistor array from Xinluda. It contains seven open-collector Darlington pairs with common emitters in a SOP-16 package and is functionally compatible with the industry-standard ULN2004.
No. Despite the similar naming to some XLSEMI XL-series buck regulators, the Xinluda XL2004 is a Darlington transistor array (a driver IC), not a switching DC-DC converter. It is used to drive relays, motors, lamps, and displays.
The XL2004 is designed to be pin- and function-compatible with the ULN2004, so it can typically serve as a drop-in equivalent. As always, confirm the specific electrical and package parameters against the datasheet for your application.
Each of the seven channels is rated for 500 mA of continuous collector current, consistent with the ULN2004 family. For higher currents, multiple outputs can be paralleled.
The XL2004 variant is intended for CMOS and PMOS logic operating in the 6 V to 15 V range, thanks to its 10.5 ku03a9 series base resistor. For 5 V TTL/CMOS systems, the XL2003/ULN2003-class variant is generally used instead.
The XL2004 is a Xinluda part with limited authorized-distributor presence outside Asia. Pacific Component Xchange specializes in sourcing hard-to-find components like this one. Submit an RFQ and we will confirm availability, lead time, and pricing.
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