This part is a kind of semiconductor called TLP-434.

Function of this product has Transmitter.

Manufacturers : Laipac Technology

Image and pinout :

Some of the text within the PDF file :

TLP/RLP434 RF ASK Low Cost Hybrid Modules for Radio Control and Telemetry applications Easy-Link Wireless TLP-434 Transmitter 16.1mm 14.5mm 1 2 34 5 6 13.5mm pin 1 : Vcc pin 2 : Vcc pin 3 : Gnd pin 4 : Gnd pin 5 : RF Output pin 6 : Digital Data Input 2.54mm Frequency 315, 418 and 433.92MHz Modulation : ASK Operation Voltage : 2 - 12 VDC RF Output Power max : 8mW Symbol Parameter Conditions Min Typ Max Vcc Operating supply voltage 2.0 - Icc Peak Current -5 Vh Input High Voltage Idata= 100uA (High) Vcc-0.5 Vcc Vl Input Low Voltage Idata= 0 uA (Low) - - FO Absolute Frequency 315Mhz module 314.8 315 Relative To 433.92MHz +/-150 PO RF Output Power- 50ohm Vcc = 9V to 12V - 14 Vcc = 5V to 6V - 16 DR Data Rate External Encoding - 2.4K Notes : ( Case Temperature = [ ... ]

TLP-434 PDF Datasheet Download