XD339 – Quad Voltage Comparator – Xinluda

The Xinluda XD339 is a quad differential voltage comparator in a through-hole DIP-14 package, offering LM339-type performance with low offset voltage and outputs compatible with TTL, MOS, and CMOS logic for single- or dual-supply operation up to 36V.

The Xinluda XD339 is a monolithic quad voltage comparator housed in a through-hole DIP-14 package. It belongs to Xinluda’s XL339/XD339/XL2901/XD2901 comparator family, a cost-effective, pin-compatible alternative to the industry-standard LM339 quad differential comparator. Each device integrates four independent comparators designed to operate from a single power supply over a wide voltage range, making the XD339 a versatile building block for level detection, threshold sensing, and signal-conditioning circuits.

The XD339 features outputs compatible with TTL, MOS, and CMOS logic, supporting flexible interfacing across logic families. The wide common-mode input range that includes ground, combined with low input offset and low input bias current, makes it well suited for both single-supply and split-supply applications across consumer, industrial, and automotive electronics.

Key Features

• Four independent voltage comparators in one package
• Wide single-supply operation up to a maximum rating of 36V
• Dual (split) supply operation supported within the 36V rating
• Low input offset voltage: 2 mV (typical)
• Low input bias current: 25 nA (typical)
• Low supply current: approximately 300 uA per comparator (typical)
• Outputs compatible with TTL, MOS, and CMOS logic
• Common-mode input voltage range includes ground
• Differential input voltage range equal to the maximum-rated supply (+/-36V)
• Operating temperature range: -40 C to +85 C
• Through-hole DIP-14 package for prototyping and high-reliability assembly
• Functionally and pin-compatible with the LM339 quad comparator

Applications

• Voltage level detection and threshold/window comparators
• Zero-crossing detectors and oscillator/timing circuits
• Battery and power-supply monitoring
• Analog-to-digital (logic) interface and signal conditioning
• Motor-drive and industrial control feedback
• Consumer electronics and general-purpose instrumentation

Why Source XD339 from Pacific Component Xchange

The XD339 is a hard-to-find part with little to no authorized-distributor availability in Western markets. Pacific Component Xchange specializes in locating obsolete, allocated, and hard-to-source comparators and analog ICs like the Xinluda XD339. As an independent distributor, we provide global sourcing, authenticity and quality verification, and worldwide shipping to keep your production lines and service operations running.

This is a Request-For-Quote (RFQ) item. Contact Pacific Component Xchange with your target quantity, date code, and packaging requirements, and our sourcing team will respond with current availability and pricing. Whether you need a single tube for a redesign or volume quantities for production, we help you secure genuine components with confidence.