This part is a kind of semiconductor called TC533.

Function of this product has TEMPERATURE CONTROLLERS.

Manufacturers : Select Automation

Image and pinout :

Some of the text within the PDF file :

SELEC TEMPERATURE CONTROLLERS TC533 TEMPERATURE CONTROLLERS sales@selectautomation.net selectautomation@airtelmail.in TC533NX/TC233/TC333 www.selectautomation.net BASIC PID TEMPERATURE CONTROLLER ORDERING INFORMATION Part No. TC533AX TC533AX-24V TC233AX TC233AX-24V TC333AX TC333AX-24V 85 - 270V AC/DC PENDING PENDING C US ! ! ! ! ! ! ! ! ! ! FEATURES High Performance Dual Display, 3 digit, 7 segment LED LED Status Indicator: Relay ON 3 Front Panel Control buttons TC/RTD Inputs PID, ON/OFF Control Single Setpoint o C / oF Selectable Control Output : Relay or SSR Drive Easy to use Supply Voltage 24V AC/DC Control Output Relay SSR (12V DC) TECHNICAL SPECIFICATIONS INPUT SPECIFICATIONS Inputs Sampling time Input Filter (FTC) Resolution Temperature Unit Thermocouple (J,K,T,R,S) / RTD ( [ ... ]

TC533 PDF Datasheet Download