Overview

Product Description

The PT8A341x is specially designed for water filled radiator control system. It can drive two relays respectively and detect the heater’s temperature with NTC sensor’s input. It has two ADC input for temperature setting and detecting, and has LEDs for user interface.

Features

ON/OFF and TIMER Input Button (PT8A3410/11)
VR and NTC1 input for precise ADC
5 LED Indicator (PT8A3410/11) or 2 LED Indicator (PT8A3412/13)
Lead free DIP-16 and SOIC-16

Advantages

Manual Resetting Thermal Cut Out
Over-Heating Cut Out Auto Resetting
No water Over-Heating Cut Out NTC
NTC sensor open/close Cut Out 105T
105T Steady Heating (No ON/OFF)
Trip Over Safety
Auto Self-Check
Special Relay Drive Technology, expand the total work-life

Applications

Water Filled Radiator

Specifications & Technical Documents

Product Parameters

Heating Element	Heating Wire
LED @ Heater On	Constant
Auto Off	No
On/Off Key	Two keys (ON-OFF key plus 1 function key)
Driver Type	Relay

Technical Documents

Recommended Soldering Techniques

TN1.pdf

Additional Technical Documents are available upon request:
Application information, Evaluation board, and Other technical documents

Request Documents

Purchase & Availability

Product Change Notices (PCNs)

A PCN may only apply to specific orderable part numbers in this datasheet. Please refer to the corresponding PCN to see the exact orderable part number(s) affected.

PCN #	Issue Date	Implementation Date	Subject
PCN-2770	2025-10-30	2025-10-30	Add Fab Site Code, Country of Diffusion (COD) and Assembly Site Origin (ASO) on Product and Shipping Labels for all Diodes Products

PT8A3411