KA78T12TU

Description：IC REG LINEAR 12V 3A TO220-3
Series：-
Mfr：onsemi
Package：Tube

SKU:25c3e2da0614 Category: Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Brand: onsemi

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Product introduction

KA78T12TU is listed in the Voltage Regulators - Linear, Low Drop Out (LDO) Regulators range at ChipApex. The manufacturer field lists onsemi. Its product description is IC REG LINEAR 12V 3A TO220-3. Review the specifications below when checking this part for your BOM.

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators specifications for KA78T12TU

Description：IC REG LINEAR 12V 3A TO220-3
Series：-
Mfr：onsemi
Package：Tube
Output Configuration：Positive
Output Type：Fixed
Number of Regulators：1
Voltage - Input (Max)：35V
Voltage - Output (Min/Fixed)：12V
Voltage - Output (Max)：-
Voltage Dropout (Max)：2.5V @ 3A
Current - Output：3A
Current - Quiescent (Iq)：6 mA
Current - Supply (Max)：-
PSRR：67dB (120Hz)
Control Features：-
Protection Features：Over Temperature, Short Circuit
Operating Temperature：0°C ~ 125°C
Mounting Type：Through Hole
Package / Case：TO-220-3
Supplier Device Package：TO-220-3
Grade：-
Qualification：-

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators datasheet and documents for KA78T12TU

KA78T12TU

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Overview

The KA78T12TU is a monolithic integrated circuit fixed voltage regulator from the KA78Txx series, manufactured by onsemi. It provides a positive fixed output of 12 V with an output current capability exceeding 3.0 A. The device operates within an input voltage range up to 40 V and dissipates power internally, limited to a maximum of 25 W. It utilizes a TO-220 package for through-hole mounting and maintains operation across a junction temperature range of 0 °C to +125 °C.

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Feature Summary

Internal short circuit current limiting protects against output faults
Integrated thermal overload protection prevents damage during overheating
Output transistor safe operating area compensation ensures stable performance under varying load conditions

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Applications

General-purpose power supply regulation
Local on-card regulation for distributed power systems
Equipment requiring fixed positive voltage sources

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Procurement Notes

Verify component authenticity and datasheet revision status before integration. Confirm that the specific ordering suffix matches the required package and temperature grade. Ensure compliance with RoHS directives if applicable to the target assembly. Review obsolescence notices as this part may be subject to lifecycle changes.

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Selection Notes

Select this component when a fixed 12 V output at currents above 3.0 A is required. Ensure the input voltage remains within the specified maximum limits to prevent excessive power dissipation. Verify that the thermal management solution can handle the 25 W internal power dissipation limit under worst-case operating conditions.

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Part Context

This regulator belongs to the KA78Txx family of three-terminal positive voltage regulators. The family includes variants offering 5 V, 12 V, and 15 V outputs. These devices are designed as drop-in replacements for standard 78xx regulators but offer enhanced current handling capabilities beyond the traditional 1 A limit.