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QIACHIP TX118SA-4 Instruction Manual DC 3V-24V 433MHz RF Superheterodyne Wireless Transmitter Module

QIACHIP TX118SA-4 Product Diagram.webp

Version: V1.0

Last Updated: 2026-2-28

Model: TX118SA-4

Product Size

QIACHIP TX118SA-4 Size Figure.webp

  • Receiver Length (L) x Width (W) x Height (H): 18mm x 18mm x 1mm
  • Receiver Pin header pitch: 2.5 mm

Component Description

QIACHIP TX118SA-4 Component Description Figure.webp

  • 1: Indicator light
  • 2: ANT (Antenna Pin)
  • 3: K4(External input button 4 Short to GND to trigger Data 4)
  • 4: K3(External input button 3 Short to GND to trigger Data 3)
  • 5: K2(External input button 2 Short to GND to trigger Data 2)
  • 6: K1(External input button 1 Short to GND to trigger Data 1)
  • +: Power Input Pin
  • -: Power Ground Pin

Application Circuit Diagram

QIACHIP TX118SA-4 Application Circuit Diagram.webp

Electrical characteristics

Parameter Value
Input voltage DC 3.0V-24V
Standby Current < 3 μA
RF frequency 433.92MHz
Power Consumption Current in shutdown mode is less than 0.1μA
Transmit Power 11dBm
Transmission Distance 50m
Transmit Frequency Deviation ±7.5 kHz
Key Inputs 4 Groups (A, B, C, D), Combinable into 15 Groups
Working temperature -40~85℃
Size 18x18x1mm

NOTE

  1. This product is a CMOS device. Anti-static precautions must be taken during storage, transportation and operation.
  2. Ensure reliable grounding when the device is in use.