Xinluda (Shenzhen Xinluda Information Technology Co., Ltd.) Electronic Parts
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The Xinluda XD2903 is a dual differential voltage comparator that integrates two independent comparators designed to operate from a single power supply over a wide voltage range. It is the DIP-8 through-hole variant of Xinluda’s 293/393/2903 comparator series and is pin- and function-compatible with the industry-standard LM2903 dual comparator, making it a convenient drop-in option for legacy and cost-optimized designs.
Each comparator accepts a differential input whose common-mode range includes ground, and the device can also be operated from dual supplies as long as the difference between the supplies is between 2V and 36V. The open-collector NPN output can be wire-ANDed together and is compatible with TTL, MOS, and CMOS logic. Current drain is low and essentially independent of supply voltage, making the XD2903 well suited to battery-powered and low-power threshold-detection circuits.
The XD2903 is a hard-to-find Xinluda part with little to no authorized-distributor stock in Western markets. Pacific Component Xchange specializes in sourcing scarce and obsolete power-management ICs, comparators, and optocouplers through a vetted global supply network. We back every order with rigorous authenticity and counterfeit-avoidance screening, flexible quantities, and worldwide shipping. If you need the XD2903 or a verified equivalent, request a quote (RFQ) from our sourcing team and we will confirm current availability, lead time, and pricing for your required quantity.
The XD2903 is a dual differential voltage comparator from Xinluda. It contains two independent comparators in a DIP-8 package, operates from a single or dual supply of 2V to 36V, and provides open-collector outputs. It belongs to Xinluda's 293/393/2903 family.
Yes. The XD2903 is a pin- and function-compatible member of the industry-standard 2903/LM2903 dual comparator family, with the '2903' device characterized for -40u00b0C to +125u00b0C operation, making it a common drop-in alternative for LM2903-type designs.
The XD2903 is supplied in an 8-pin DIP (through-hole) package. The Xinluda 'XD' prefix denotes the DIP-8 version; the equivalent SOP-8 surface-mount variant is sold under the XL2903 part number.
They are the same dual comparator in different packages. XD2903 is the DIP-8 through-hole version, while XL2903 is the SOP-8 surface-mount version. Electrical specifications are otherwise identical.
Each comparator has an open-collector NPN output. This allows outputs to be wire-ANDed together and is compatible with TTL, MOS, and CMOS logic. An external pull-up resistor to the supply rail is required.
The XD2903 is a hard-to-find part with limited authorized-distributor availability. Pacific Component Xchange sources scarce and obsolete components through a vetted global network. Submit an RFQ and our team will confirm availability, lead time, and pricing.
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