KA5S1265YDTU

$0.88

Description：IC REG LINEAR SWITCHING REG
Series：-
Mfr：Fairchild Semiconductor
Package：Bulk

SKU:4bed73bedcb0 Category: AC DC Converters, Offline Switchers Brand: Fairchild Semiconductor

Consult the customer manager about the wholesale price.

consultation hotline：86-132-6715-2157

email：[email protected]
Contact the product manager for consultation. One-stop consultation is available.

Do you want a lower wholesale price? Please send us your inquiry and we will reply immediately.

Product introduction

KA5S1265YDTU is listed in the AC DC Converters, Offline Switchers range at ChipApex. The manufacturer field lists Fairchild Semiconductor. Its product description is IC REG LINEAR SWITCHING REG. Review the specifications below when checking this part for your BOM.

AC DC Converters, Offline Switchers specifications for KA5S1265YDTU

Description：IC REG LINEAR SWITCHING REG
Series：-
Mfr：Fairchild Semiconductor
Package：Bulk
Output Isolation：-
Internal Switch(s)：-
Voltage - Breakdown：-
Topology：-
Voltage - Start Up：-
Voltage - Supply (Vcc/Vdd)：-
Duty Cycle：-
Frequency - Switching：-
Fault Protection：-
Control Features：-
Operating Temperature：-25°C ~ 85°C (TA)
Package / Case：TO-3P-5 Formed Leads
Supplier Device Package：TO-3P-5L (Forming)
Mounting Type：Through Hole
Grade：-
Qualification：-
Power (Watts)：-

AC DC Converters, Offline Switchers datasheet and documents for KA5S1265YDTU

KA5S1265YDTU

AC DC Converters, Offline Switchers Overview

The KA5S1265YDTU is a Fairchild Power Switch (FPS) integrating a high-voltage SenseFET and current-mode PWM controller for offline switch-mode power supplies. It operates with a maximum switching frequency of 150 kHz and supports a maximum output current of 48 A. The device utilizes pulse width modulation control within an input voltage range of 11 V to 30 V, typically centered at 14 V. It is housed in a TO-3P package with five pins, designed for robust performance across operating temperatures from -25 °C to 85 °C.

AC DC Converters, Offline Switchers Feature Summary

Integrates high-voltage SenseFET and current-mode PWM controller
Includes overcurrent latch protection and internal thermal shutdown
Features under voltage lockout and auto-restart mode

AC DC Converters, Offline Switchers Applications

Offline switch-mode power supplies
General-purpose power conversion systems

AC DC Converters, Offline Switchers Procurement Notes

Verify the manufacturer designation on the component marking, as Rochester Electronics may distribute this part originally designed by Fairchild Semiconductor. Confirm the specific suffix matches the required pin configuration and package type. Ensure the procurement source provides traceability documentation consistent with the original Fairchild specifications to guarantee functional equivalence.

AC DC Converters, Offline Switchers Selection Notes

Select this component when designing offline SMPS applications requiring integrated power switching and control. The fixed oscillator and current-mode control simplify loop compensation. Consider the 150 kHz maximum frequency and 48 A current capability against thermal requirements. Verify that the TO-3P package fits the mechanical constraints and that the input voltage range aligns with the system's supply characteristics.

AC DC Converters, Offline Switchers Part Context

This device belongs to the Fairchild Power Switch family, which combines power and control functions into a single package. This integration reduces external component count, size, and weight compared to discrete MOSFET and controller solutions. The family targets efficiency and reliability improvements in power supply designs.