OR MC7812

Mfr. Part

MC7812

Manufacturer

OR — Y-IC is a quality distributor of this brand, committed to providing you with the best products and services

Detailed Description

MC7812 is a fixed 12 V positive linear voltage regulator in a TO-220 package. It delivers a stable 12 V output for general-purpose power conditioning. Typical for the 78xx family, it integrates internal current limiting, thermal shutdown, and safe-area protection. It is simple to use, needs only input/output bypass capacitors, and is broadly second-sourced for long-term availability. Category: Integrated Circuits (ICs) → Specialized ICs. Current stock reference: 10,400 pcs (subject to change).

Key Features

Fixed +12 V regulated output

3-pin TO-220, through-hole mounting

Internal current limiting and thermal shutdown

Stable with standard electrolytic/ceramic capacitors

Low output noise versus switching regulators

Simple design-in; no external pass transistor needed

Wide ecosystem of second-source equivalents

Key Advantages

Fast, low-risk design due to industry-standard 78xx topology

Reliable protection features reduce field failures

Cost-effective solution for post-regulation and point-of-load 12 V rails

Easy thermal management with heatsink-ready tab

Broad availability and long lifecycle with multiple manufacturers

Packaging

Type: TO-220, 3 leads, through-hole

Material: Molded epoxy body with copper lead frame; exposed metal tab for heatsinking

Size: Standard TO-220 outline (heatsink mounting hole on tab). Refer to datasheet mechanical drawing for exact dimensions

Pin configuration (front view, text facing you, leads downward): Pin 1 = Input, Pin 2 = Ground, Pin 3 = Output; tab typically tied to Ground (verify in datasheet for your lot)

Mounting: Single-screw heatsink tab; can be used with insulating pad if tab isolation is needed

Thermal characteristics: Designed for heatsinking at higher loads; junction-to-ambient depends strongly on airflow, PCB copper, and heatsink. Use datasheet Rθ values and your thermal setup to size the heatsink

Electrical properties (family-typical, verify datasheet): Output 12 V fixed; output current class up to about 1 A; dropout headroom required above 12 V; integrated line/load regulation and ripple rejection. Exact limits depend on manufacturer version and operating conditions

Package/Case note: Supplier case code referenced as “799”; physical package is TO-220

Lifecycle

Status: The 7812 family is a mature, mainstream regulator line and widely second-sourced. No general indication of near-term discontinuation for the family. For the specific OR-branded MC7812, confirm current lifecycle with Y-IC sales if needed

Equivalent or alternative models (same function; check pinout, specs, and qualifications before substitution):

- onsemi MC7812ACTG (TO-220)

- Texas Instruments LM7812CT / LM7812CT/NOPB

- STMicroelectronics L7812CV

- Diodes Incorporated AZ7812 series

- Micro Commercial Components (MCC) MC7812CT

- Nexperia/Philips 7812 series (availability varies)

- Rochester/legacy Fairchild KA7812 (check status)

If you need exact cross references or automotive/industrial grade variants, contact Y-IC via our website for tailored alternatives and stock confirmation

Key Application Areas

Post-regulation to 12 V from unregulated adapters or higher DC rails

Industrial control modules and PLC I/O power

Test and measurement instruments

Communication equipment and small networking devices

Consumer electronics, audio gear, and DIY maker projects

Embedded systems needing a clean 12 V rail for relays, sensors, and analog stages

Datasheet

Y-IC hosts the most authoritative datasheet for this product model on our website. For precise electrical limits, mechanical dimensions, thermal data, and application notes, we recommend downloading the datasheet on this page

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