Xinluda Information Technology Co., Ltd. Electronic Parts
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The XL339 from Xinluda Information Technology is a quad differential voltage comparator that integrates four independent precision comparators in a single package. It is a functional equivalent of the industry-standard LM339 and belongs to Xinluda’s XL239 / XL339 / XL2901 quad-comparator family. The device is designed to operate from a single power supply over a wide voltage range, with a common-mode input range that includes ground, making it well suited to single-supply systems where the input signal can swing down to the negative rail.
Each of the four comparators features an open-collector output that is compatible with TTL, MOS, and CMOS logic, allowing wired-AND connections and flexible level translation with an external pull-up resistor. Low input offset voltage and low input bias current support accurate threshold detection across a broad supply range.
The XL339 is a Xinluda-branded part with limited authorized-distributor coverage outside of Asia, which can make it difficult to source reliably for production builds, EOL replacements, and cross-references to the LM339. Pacific Component Xchange is an independent distributor specializing in hard-to-find and obsolete power-management ICs, comparators, and optocouplers. We help engineers and buyers secure stock of scarce parts like the XL339 with authenticity verification, global shipping, and responsive support.
Pricing on this part is quote-based. Request an RFQ from Pacific Component Xchange for current availability, lead time, and volume pricing on the XL339 and equivalent LM339-family comparators.
The XL339 is a quad differential voltage comparator from Xinluda Information Technology. It contains four independent comparators with open-collector outputs and operates from a single supply, functioning as an equivalent of the industry-standard LM339.
The XL339 is a functional equivalent of the LM339 quad comparator family, sharing the same four-comparator architecture, open-collector outputs, and wide single-supply operating range. As with any cross-reference, verify pinout, package, and electrical specifications against your design before substitution.
Pacific Component Xchange lists the XL339 in the SOP-14 surface-mount package, which is the standard quad package for this Xinluda comparator family. Contact us if you need a specific package or temperature grade.
Each comparator has an open-collector output that is compatible with TTL, MOS, and CMOS logic. An external pull-up resistor is required to define the high-output level, which also enables wired-AND connections.
The XL339 is a Xinluda-branded part with limited authorized-distributor availability outside of Asia, so it is often only stocked through independent channels. Pacific Component Xchange specializes in sourcing hard-to-find parts like this.
The XL339 is a request-for-quote (RFQ) product. Submit an RFQ to Pacific Component Xchange and our team will respond with current availability, lead time, and volume pricing.
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