onsemi CAT24C

CAT24C variants from onsemi

Variants

Mfr

onsemi

Lifecycle

Active

CAT24C Overview

What changes between part numbers, and what to check before you lock the BOM — Microcontrollers.

Key Features

Lifecycle mix: ActiveConfirm lifecycle on the exact MPN, not just the base number prefix.
33 distinct suffix patternsExamples: 02TDI-GT3A, 02VP2IGT3A, 03WI-GT3, 04HU4I-GT3, 04WI-GT3 (+28 more). Decode suffix meaning in the ordering notes under the variant table.

Target Applications

Microcontrollers — design-in and field replacement
BOM scrub where only the base prefix is known but suffix is TBD
Second-source checks when the original MPN is constrained

Ordering Variants

Compare 33 CAT24C part numbers by package, electrical parameters, lifecycle, and availability. Use RFQ for stock and lead-time confirmation.

Part Number	Description	Manufacturer	Lifecycle	RoHS	Availability	Action
CAT24C02TDI-GT3A	2K-bit Serial EEPROM, 256x8, 1.8-5V, 5-Pin TSOT-23	onsemi	Active	Compliant	In Stock	RFQ
CAT24C02VP2IGT3A	2Kb I2C EEPROM, 400kHz, 1.7-5.5V, PDSO8, 2.1x3.1mm	onsemi	Active	Compliant	In Stock	RFQ
CAT24C03WI-GT3	2Kb EEPROM, I2C Serial, SOIC 8, 400kHz, 1.8-5.5V, SM	onsemi	Active	Compliant	In Stock	RFQ
CAT24C04HU4I-GT3	4Kb EEPROM, I2C, 400kHz, 5.5V, UDFN8, 2x3mm	onsemi	Active	Compliant	In Stock	RFQ
CAT24C04WI-GT3	4Kb EEPROM, I2C Serial, SOIC 8, 5.5V, 400kHz	onsemi	Active	Compliant	In Stock	RFQ
CAT24C04YI-GT3	4Kb EEPROM, I2C Serial, 400kHz, TSSOP8, 5.5V	onsemi	Active	Compliant	In Stock	RFQ
CAT24C08C4ATR	EEPROM Serial 8-Kb I2C, WLCSP4, 0.84x0.86, 5000-DSFTP	onsemi	Active	Compliant	In Stock	RFQ
CAT24C08C5ATR	EEPROM Serial 8-Kb I2C, WLCSP5, 0.86x0.84, 5000-DSFTP	onsemi	Active	Compliant	In Stock	RFQ
CAT24C08HU4I-GT3	8Kb EEPROM, I2C, 400kHz, UDFN8, 1.7-5.5V, 85C	onsemi	Active	Compliant	In Stock	RFQ
CAT24C08WI-GT3	EEPROM Serial 8-Kb I2C, SOIC 8, 150 mils, 3000-REEL	onsemi	Active	Compliant	In Stock	RFQ
CAT24C128HU4IGT3	128Kb EEPROM, I2C Serial, 400kHz, UDFN8, 1.8-5.5V	onsemi	Active	Compliant	In Stock	RFQ
CAT24C128WI-GT3	128Kb EEPROM, I2C Serial, SOIC 8, 400kHz, 1.8-5.5V	onsemi	Active	Compliant	In Stock	RFQ
CAT24C128WIGT3JN	IC EEPROM 128KBIT I2C 1MHZ 8SOIC	onsemi	Active	Compliant	In Stock	RFQ
CAT24C128YI-GT3	EEPROM Serial 128-Kb I2C, TSSOP8, 4.4x3, 3000-REEL	onsemi	Active	Compliant	In Stock	RFQ
CAT24C16C4ATR	EEPROM Serial 16-Kb I2C, WLCSP4, 0.84x0.86, 5000-DSFTP	onsemi	Active	Compliant	In Stock	RFQ
CAT24C16C5ATR	EEPROM Serial 16-Kb I2C, WLCSP5, 0.86x0.84, 5000-DSFTP	onsemi	Active	Compliant	In Stock	RFQ
CAT24C16HU4I-GT3	16Kb EEPROM, I2C, 400kHz, 1.7-5.5V, UDFN8, SM	onsemi	Active	Compliant	In Stock	RFQ
CAT24C16WI-GT3	16Kb Serial EEPROM IC, I2C, 8-Pin SOIC, Industrial	onsemi	Active	Compliant	In Stock	RFQ
CAT24C256HU4IGT3	256Kb EEPROM, I2C, 1MHz, UDFN8, 1.8-5.5V	onsemi	Active	Compliant	In Stock	RFQ
CAT24C256WI-GT3	256Kb EEPROM, I2C Serial, SOIC-8, 500ns Access	onsemi	Active	Compliant	In Stock	RFQ

Ordering Code Differences

How suffixes on CAT24C map to package, grade, and reel options.

How to Choose the Right CAT24C Microcontrollers

📦

Match the footprint first

Pull the exact package drawing for your MPN — base-number swaps fail most often at the footprint, not the schematic.

⚡

Electrical headroom

Compare voltage and current columns in the variant table. For CAT24C, a suffix with lower voltage or current rating will not survive the same circuit without recalculation.

🌡️

Temp grade letter matters

Commercial (0–70 °C) and industrial (−40–85 °C+) suffixes look similar in the prefix — confirm ambient + self-heating, not just the first page of the datasheet.

🔢

Copy the full MPN

Do not BOM only "CAT24C" — include the full suffix (e.g. 02TDI-GT3A, 02VP2IGT3A, 03WI-GT3). RFQ with reel/tube preference and required date code.

Technical Specifications

Core parameters for CAT24C product family

Identity

Base Model

CAT24C

Manufacturer

onsemi

Listed Variants

Variant Parameters

Lifecycle Status

Active

RoHS Status

Compliant

Source CAT24C with Octatronics

Request stock confirmation, lead time, date code, and pricing for all 33 ordering variants from onsemi. Our team supports active, EOL, and hard-to-find component sourcing.

Original manufacturer parts with traceability options
BOM upload and multi-line RFQ support
Package, grade, and compliance verification

Request Quote View onsemi Browse all base models →

Frequently Asked Questions

Common technical questions about the CAT24C product family.

Is CAT24C a single part I can order, or a family prefix?

CAT24C is a base / family code from onsemi. You order a full MPN such as CAT24C02TDI-GT3A, CAT24C02VP2IGT3A, CAT24C03WI-GT3. The variant table lists 33 orderable lines with different suffixes.

What do the suffix letters on CAT24C part numbers mean?

Listed suffix fragments include: 02TDI-GT3A, 02VP2IGT3A, 03WI-GT3, 04HU4I-GT3, 04WI-GT3, 04YI-GT3. Typically they encode package (see Package column), temperature grade, and tape/reel option. Always decode on the onsemi datasheet ordering guide — do not guess from pattern alone.

What is the lifecycle status of CAT24C variants?

Lifecycle values in our listing: Active. Status is per MPN suffix — one variant can be Active while another is NRND. Check PCN for your exact suffix before multi-year commitments.

What should I send for an RFQ on CAT24C?

Full manufacturer MPN (not just CAT24C), quantity, needed date code, reel vs tube, and any compliance docs (CoC, RoHS, conflict minerals). If you only know the base prefix, include a photo of the existing label or reel.