# E04-400M16S (Component)
## Description
Transceiver 433MHz IPEX interface -100dBm 1km SPI SMD,20x14mm RF Transceiver Modules and Modems RoHS
The E04-400M16S is based on STMicroelectronics' S2-LPQTR chip as the
core, it is an ultra-small size chip wireless transceiver RF module independently
developed by Ebyte, working in the 433M/470M frequency band, with a maximum
transmission power of 16dBm. Since this module is a SPI pure hardware radio frequency transceiver module, it
needs to be driven by MCU.
Features
Ultra-small size, only 14x20mm;
The communication distance can reach 1km under ideal conditions;
The maximum transmit power is 16dBm;
The receiving current (RX) is as low as 7mA, and the transmitting current (TX) is as low as 10mA@10dBm;
Low power consumption, suitable for battery-powered applications;
Support 433M/470M frequency band;
Support multiple debugging modes of 2(G)FSK, 4(G)FSK, OOK, ASK;
Support 2.5V～3.6V power supply, power supply greater than 3.3V can guarantee the best performance;
Industrial-grade standard design, supporting long-term use at -40～85℃;
IPEX interface and stamp hole are optional, which is convenient for users to develop and integrate. Application
Smart meeting
Wireless alarm system
Smart door lock
Building automation
Industrial acquisition and control
Intelligent lighting system
#E04_400M16S #EBYTE #S2LP #RFModule #WirelessTransceiver #433MHz #470MHz #IoT #IndustrialAutomation #SmartHome #LongRangeWireless #SPI #LowPowerRF #EmbeddedSystems #WirelessCommunication
## Component Details
- **Owner:** adrian95
- **Created:** 6/23/2026
- **Last Updated:** 6/23/2026
- **Visibility:** Public
- **Datasheet URL:** https://storage.googleapis.com/graviton-electric-symbols/document_assets/user-uploaded/c20809641fc95c369cb0c0cf314b91395e6db3930a532fce3a7d243b1af747fd.pdf
- **Manufacturer Part Number:** E04-400M16S
- **LCSC Part Number:** C5333990
- **License:** https://creativecommons.org/licenses/by/4.0/
- **Part Type:** Module
- **Symbol Style:** parametric-v1
- **Manufacturer Name:** EBYTE
- **Part Type:** Modules
- **MPN:** E04-400M16S
- **Mount Type:** Surface Mount
- **Package / Case Code:** Module
- **Pin Count:** 22
- **Compliance:** Rohs, REACH
## Pins
| Pin | Name | Type |
|-----|------|------|
| 1 | GND | |
| 2 | GND | |
| 3 | GND | |
| 4 | GND | |
| 5 | GND | |
| 6 | GPIO1 | |
| 7 | GPIO2 | |
| 8 | GPIO3 | |
| 9 | VCC | |
| 10 | GND | |
| 11 | GND | |
| 12 | GND | |
| 13 | GPIO0 | |
| 14 | SDN | |
| 15 | NC | |
| 16 | MISO | |
| 17 | MOSI | |
| 18 | SCLK | |
| 19 | CSN | |
| 20 | GND | |
| 21 | ANT | |
| 22 | GND | |
---
*Generated from [https://www.flux.ai/adrian95/e04-400m16s~urf](https://www.flux.ai/adrian95/e04-400m16s~urf)*