20A 3.0V-30V PWM Remote Control Electronic Switch

A tiny PWM-triggered electronic switch that turns a 3–30 V load on and off from a spare receiver channel. Plug it into the receiver, assign that channel to a two-position switch on your transmitter, and it can fire lights, pumps, buzzers, release mechanisms and other payload electronics on drones, planes and plant-protection rigs.

Key features

• Switches loads up to 20 A across a 3–30 V supply, so it runs straight off 2S to 6S packs
• Positive-side switching: output on above a 1.5 ms pulse, off below
• No calibration; works with standard PWM receiver channels across radio brands
• Status LED: slow flash means output off, steady light means output on
• About 5 g, small enough to tuck in beside the receiver

Specifications

• Operating voltage: 3.0–30 V DC
• Output current: 20 A
• Control signal: PWM — on above 1.5 ms, off below 1.5 ms
• Switching: positive (high side)
• Indicator: LED, slow flash off / steady on
• Weight: approx. 5 g (7 g packed)

It needs a PWM signal, so with an SBUS or CRSF receiver use a free PWM output or a flight-controller servo output. For loads near the 20 A limit, use wiring and connectors rated for that current.