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National Semiconductor

UA9637ARMQB

Line Receiver · Interface
Part Status: Obsolete In demand
Data last refreshed Jun 20, 2026
Manufacturer
National Semiconductor
Mfr Part #
UA9637ARMQB
Series
UA9637A
Category
Line Receiver
Datasheet
View datasheet ↗
Availability & Pricing
ZDI Price$19.25
Last transacted2002-06-19
Market range$19.25
Sourcing channels29
Request a Quote → Check Live Availability

Live pricing on request · most quotes same business day

Specifications

Physical & Thermal
SeriesUA9637A
Classification & Lifecycle
CategoryLine Receiver
TypeInterface
Part StatusObsolete

Dual Differential Line Receiver

Availability & Sourcing

29 sources
SourceMfrQtyDate CodeConditionStatus
Live National Semiconductor 80 8848 — Live RFQ
Live FSC 52 88 86 89 — Live RFQ
Live FCS 46 — — Live RFQ
Live FAIRCHILD SEMICONDUCTOR 24 — — Live RFQ
Live FSC 18 8852D — Live RFQ
Live FAIRCHILD 14 — — Live RFQ
Live — 10 86 — Live RFQ
Live FSC88* 10 — — Live RFQ
Live Fairchild Semiconductor C 7 85+ — Live RFQ
Live FAIRCHILD 5 8550 — Live RFQ
Live FSC 3 88+ — Live RFQ
Live ANALOG DEVICES 3 88+ — Live RFQ
Live FAIRCHILD 3 86 — Live RFQ
Live ICS 3 — — Live RFQ
Live FAIRCHILD SEMICONDUCTOR C 3 8539 — Live RFQ
Live FAIRCHILD SEMICONDUCTOR C 2 8818 — Live RFQ
Market National Semico 80 8848 — Available RFQ
Market FSC 52 88 86 89 — Available RFQ
Market FCS 46 — — Available RFQ
Market FAIRCHILD SEMIC 24 — — Available RFQ
Market FSC 18 8852D — Available RFQ
Market FAIRCHILD 14 — — Available RFQ
Market National Semico 10 86 — Available RFQ
Market FSC88* 10 — — Available RFQ
Market Fairchild Semic 7 85+ — Available RFQ
Market FAIRCHILD 5 8550 — Available RFQ
Market FSC 3 88+ — Available RFQ
Market ICS 3 — — Available RFQ
Market FAIRCHILD SEMIC 3 8539 — Available RFQ

ZDI Stock — in our warehouse · Market — offers available through our sourcing network · Live — recent offers from our sourcing network.

Price History & Market Reference

Market Price Range

High$19.25
Low$19.25
Last$19.25
Price as of2002-06-19

ZDI Transaction

Last ZDI price$19.25
As of2002-06-19
Active offers29

Pricing reflects ZDI's transaction and market-reference data. Firm pricing confirmed per RFQ against current availability.

Part Activity

recent searches, RFQs & offers
UA9637ARMQB viewed on the web · Web User
UA9637ARMQB viewed on the web · Web User
UA9637ARMQB viewed on the web · Web User
UA9637ARMQB viewed on the web · Web User
UA9637ARMQB viewed on the web · Web User
UA9637ARMQB viewed on the web · Web User
UA9637ARMQB viewed on the web · Web User
UA9637ARMQB viewed on the web · Web User

Recent search and sourcing activity for UA9637ARMQB.

Engineering FAQ

UA9637ARMQB is marked Obsolete — how does ZDI assure authenticity?
Obsolete and end-of-life parts carry elevated counterfeit risk, which is exactly why ZDI routes every lot through the full EQuality Process™ — validation, QI-1 and QI-2/camera inspection, RoHS verification, bake and bag-and-tag, and QI-3 final inspection — with source-country supplier vetting and full lot traceability before release.
Can ZDI source UA9637ARMQB beyond the quantities shown?
Yes — ZD Integrated Circuits specializes in sourcing hard-to-find, obsolete, and excess electronic components through its global network, with counterfeit-avoidance inspection on every lot. Submit an RFQ with your target quantity for availability and pricing.

Documents & Media

Quality & Counterfeit Avoidance

ISO 9001 ERAI Member ESD Certified GIDEP Participant ZDI EQuality Process CAGE Code 1V8K2

ZD Integrated Circuits operates an ISO 9001-certified quality system incorporating JEDEC-standard process-control elements. In an era of global sourcing and internet procurement, standards compliance alone no longer assures component authenticity — so ZDI pioneered a multi-layered counterfeit-avoidance program: supplier analysis at the source-country level, detailed component analysis, defined inspection standards for all incoming devices, and stringent supplier rating and review. These programs let ZDI guarantee the integrity and the source of every component it ships.

Every lot moves through ZDI's EQuality Process™ — validation, QI-1 and QI-2/camera inspection, RoHS verification, bake and bag-and-tag, and QI-3 final inspection — with Quality-Manager disposition before release. Nonconforming material is quarantined; conforming material is warehoused or shipped.

✓Multi-stage EQuality Process™ inspection (QI-1 · QI-2/camera · QI-3)
✓Source-country supplier analysis, rating & review
✓Incoming inspection, RoHS verification, bake, full lot traceability
✓ESD-controlled handling · authentic parts guaranteed

UA9637ARMQB is marked Obsolete. Obsolete and end-of-life parts carry elevated counterfeit risk — exactly why ZDI routes them through the full EQuality Process™ with source-country supplier vetting, inspection, and traceability.

Related Parts

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