+1 500 000 products in offer

6000 packages per day

+300 000 clients from 150 countries

We would like to inform that on 26.07.2026 at 02:00 AM - 04:00 AM (CEST) some problems with access to the website and online orders may occur. We apologize for any inconvenience.

Kindly reach out to your market representative. Invite us to an online meeting.

Data processing in progress

Your credit limit has been exceeded. Your order will be accepted but not realized. The delivery schedule will not be set. Please contact a TME employee.

The task was successfully completed.

An unexpected error ocurred. Please try again.

Manufacturer	SILICON LABS
Type of communications module	WiFi
Transmitter output power	17dBm
Communictions protocol	DHCP, DNS, IEEE 802.11b/g/n, TCP/IP, UDP
Receiver sensitivity	-91dBm
Mounting	SMD
Dimensions	15.4x26.2x2.1mm
Data transfer rate	20Mbps
Frequency	2.4GHz
TX/RX supply current	150/61mA
Connection	I-PEX (u.FL)
Quiescent current	2.5mA
Communications modules features	antenna connector
Operating temperature	-40...85°C

WF121-E

Module: WiFi; 17dBm; DHCP,DNS,IEEE 802.11b/g/n,TCP/IP,UDP; SMD

Specification