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CS51021 — SOIC-8 package (representative)
SOIC-8
Representative of package type
ON Semiconductor

CS51021

PWM Controller · SOIC-8 · Analog
In stock at ZDI
Data last refreshed Aug 16, 2026
Manufacturer
ON Semiconductor
Mfr Part #
CS51021
Series
CS51021
Category
PWM Controller
Datasheet
View datasheet ↗
Availability & Pricing
ZDI Stock791 pcs
Date Codes9842+, 9833
PackagingTubed
Unit PriceRequest a Quote
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Specifications

Physical & Thermal
Package / CaseSOIC-8
Mounting TypeSurface Mount
SeriesCS51021
Classification & Lifecycle
CategoryPWM Controller
TypeAnalog

Current-mode PWM controller for DC-DC converters

Availability & Sourcing

1 source
SourceMfrQtyDate CodeConditionStatus
ZDI Stock ON Semiconductor 791 9842+, 9833 New In Stock RFQ

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

Part Activity

recent searches, RFQs & offers
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CS51021 viewed on the web · Web User
CS51021 viewed on the web · Web User
CS51021 viewed on the web · Web User

Recent search and sourcing activity for CS51021.

Engineering FAQ

What quantity and packaging is CS51021 in ZDI stock?
ZDI holds 791 pcs, packaged as Tubed, date code(s) 9842+, 9833. Request a quote for confirmed quantity, lead time, and pricing.
What package is CS51021 supplied in?
CS51021 is supplied in the SOIC-8 package, surface mount.
Can ZDI source CS51021 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

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