What are the key protection features?

It includes built-in thermal shutdown, overcurrent protection, and overvoltage protection to ensure reliable operation.

What is the input voltage range?

The device operates with an input voltage range of 13.5V to 35V.

What are the typical applications?

It is commonly used in instrumentation, motherboard power supplies, multi-rail power systems, and general equipment power modules.

What should sourcing teams check before buying 78L12?

Check lifecycle (Active), compliance data, distributor availability, and approved-source coverage. Current sourcing signal: low; readiness: easy.

What is the pinout of 78L12?

Use the 78L12 datasheet for the official pinout diagram and pin names. In PartGenie, ask Datasheet AI about 78L12 pinout to locate pins, power rails, and interface signals before layout.

78L12 Datasheet, Specs, Alternatives & ECAD | goodwork

AI summary

The 78L12 is a reliable 12V fixed linear voltage regulator capable of 100mA output, suitable for general-purpose power management in instrumentation and small electronic systems.

Best for

Instrumentation
Low-power 12V rails
General-purpose electronics

Avoid if

High-current applications exceeding 100mA
Applications requiring very low dropout

Check before use

Thermal management
Input voltage stability

Key specifications

Output Voltage: 12 V
Max Output Current: 100 mA
Input Voltage: 13.5 V - 35 V
Package: SOT89-3

Compliance & Environment

RoHS: RoHS

Application

PowerIndustrial

Datasheet

2205301745_GOODWORK-78L12_C3025159.pdf

800 KB

Datasheet AI

CAD Models

Download ECAD models for 78L12: KiCad symbol & footprint, Altium footprint, PCB footprint, and 3D model.

EDA Symbol

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PCB Footprint

Land pattern for PCB layout

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3D Model

STEP file for mechanical design

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KiCad Library

Verified KiCad 8 symbol, footprint, and 3D model

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Where to Buy

Real-time and catalog pricing from verified distributors

Alternative components

Part	Details	Match
CJ78L12Jiangsu Changjing Electronics Technology Co., Ltd.	CJ78L12 matches 12 V and 100 mA in a SOT-89-family package, with pinout review required.	Needs validation

L78L12ABUTRSTMicroelectronics	L78L12ABUTR is a 12 V/100 mA SOT-89 candidate with a lower input-voltage rating.	Needs validation
L78M12CDT-TRSTMicroelectronics	L78M12CDT-TR is a higher-current 12 V functional option needing layout review.	Needs validation
L7812CD2T-TRSTMicroelectronics	L7812CD2T-TR is a higher-current 12 V functional option for redesigned SMT boards.	Needs validation
L7812CV-DGSTMicroelectronics	L7812CV-DG is a 12 V functional alternative for redesigned higher-current boards.	Needs validation

Design and risk insights

Questions & answers

The 78L12 is a three-terminal linear voltage regulator that provides a fixed 12V output with up to 100mA of current.

AI summary

Best for

Avoid if

Check before use

Key specifications

Compliance & Environment

Application

Datasheet

CAD Models

Where to Buy

Alternative components

Design and risk insights

Questions & answers

What is the 78L12?+×

What are the key protection features?+×

What is the input voltage range?+×

What are the typical applications?+×

What should sourcing teams check before buying 78L12?+×

What is the pinout of 78L12?+×