onsemi MC78M

MC78M variants from onsemi

Variants

Mfr

onsemi

Lifecycle

Active

MC78M 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.
25 distinct suffix patternsExamples: 05ABDTG, 05ABDTRKG, 05ACDTRKG, 05BDTG, 05BDTRKG (+20 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 25 MC78M 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
MC78M05ABDTG	5V 0.5A LDO Regulator, 35V In, DPAK, SM	onsemi	Active	Compliant	In Stock	RFQ
MC78M05ABDTRKG	5V LDO Regulator, 500mA, 35V In, DPAK, SM	onsemi	Active	Compliant	In Stock	RFQ
MC78M05ACDTRKG	5V LDO Regulator, 500mA, 35V In, DPAK, 2% Acc	onsemi	Active	Compliant	In Stock	RFQ
MC78M05BDTG	5V LDO Regulator, 500mA, 35V In, DPAK, SM	onsemi	Active	Compliant	In Stock	RFQ
MC78M05BDTRKG	5V LDO Regulator, 500mA, 35V In, DPAK, 80dB PSRR	onsemi	Active	Compliant	In Stock	RFQ
MC78M05CDTG	Linear Voltage Regulator, 500 mA, 5 to 24 V, High PSRR, Positive Vout: 5.0 V; TJ = 0� to +125�C, DPAK (SINGLE GAUGE) TO-252, 75-TUBE	onsemi	Active	Compliant	In Stock	RFQ
MC78M05CDTRKG	5V LDO Regulator, 500mA, 7-35V In, DPAK, SMT	onsemi	Active	Compliant	In Stock	RFQ
MC78M05CTG	5V LDO Regulator, 500mA, 7-35V In, TO-220	onsemi	Active	Compliant	In Stock	RFQ
MC78M06CDTRKG	Linear Voltage Regulator, Positive, 6.0 V, 500 mA Vout: 6.0 V; TJ = 0° to +125°C, DPAK (SINGLE GAUGE) TO-252, 2500-REEL	onsemi	Active	Compliant	In Stock	RFQ
MC78M08BDTRKG	8V LDO Regulator, 500mA, 35V In, DPAK, SMT	onsemi	Active	Compliant	In Stock	RFQ
MC78M08CDTRKG	8V LDO Regulator, 500mA, 35V In, DPAK, SMT	onsemi	Active	Compliant	In Stock	RFQ
MC78M09BDTRKG	9V LDO Regulator, 500mA, 35V In, DPAK, SM	onsemi	Active	Compliant	In Stock	RFQ
MC78M09CDTRKG	9V LDO Regulator, 500mA, 35V In, DPAK, SM	onsemi	Active	Compliant	In Stock	RFQ
MC78M12ABDTRKG	12V LDO Regulator, 500mA, 35V In, DPAK, SMT	onsemi	Active	Compliant	In Stock	RFQ
MC78M12ACDTRKG	12V LDO Regulator, 500mA, 35V In, DPAK, 80dB PSRR	onsemi	Active	Compliant	In Stock	RFQ
MC78M12BDTG	12V LDO Regulator, 500mA, 35V In, DPAK, 80dB PSRR	onsemi	Active	Compliant	In Stock	RFQ
MC78M12BDTRKG	12V LDO, 500mA, 35V In, DPAK, SMT	onsemi	Active	Compliant	In Stock	RFQ
MC78M12CDTG	12V 0.5A LDO Regulator, DPAK, 35V In, 500mA Out	onsemi	Active	Compliant	In Stock	RFQ
MC78M12CDTRKG	12V 0.5A Positive LDO Regulator, DPAK, 35V In, 2V Dropout	onsemi	Active	Compliant	In Stock	RFQ
MC78M15ABDTG	15V LDO Regulator, 500mA, 35V In, DPAK, SM	onsemi	Active	Compliant	In Stock	RFQ

Ordering Code Differences

How suffixes on MC78M map to package, grade, and reel options.

How to Choose the Right MC78M 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 MC78M, 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 "MC78M" — include the full suffix (e.g. 05ABDTG, 05ABDTRKG, 05ACDTRKG). RFQ with reel/tube preference and required date code.

Technical Specifications

Core parameters for MC78M product family

Identity

Base Model

MC78M

Manufacturer

onsemi

Listed Variants

Variant Parameters

Lifecycle Status

Active

RoHS Status

Compliant

Source MC78M with Octatronics

Request stock confirmation, lead time, date code, and pricing for all 25 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 MC78M product family.

Is MC78M a single part I can order, or a family prefix?

MC78M is a base / family code from onsemi. You order a full MPN such as MC78M05ABDTG, MC78M05ABDTRKG, MC78M05ACDTRKG. The variant table lists 25 orderable lines with different suffixes.

What do the suffix letters on MC78M part numbers mean?

Listed suffix fragments include: 05ABDTG, 05ABDTRKG, 05ACDTRKG, 05BDTG, 05BDTRKG, 05CDTG. 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 MC78M 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 MC78M?

Full manufacturer MPN (not just MC78M), 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.