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EZRadio® ISM Band ICs

Silicon Labs EZRadio^® family of fully integrated, low-power, low-data-rate, cost-effective wireless ICs are designed to meet the needs of OEMs developing ISM applications for the consumer, industrial, and automotive markets. The EZRadio ISM band receivers and transmitters target one-way wireless link applications such as remote keyless entry (RKE), garage door openers, remote controls, home automation, and security devices. Silicon Labs has expanded its EZRadio family of ISM Band ICs with a new Sub-GHz Receiver (Si4355), Transceiver (Si4455), and development kits.

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Image	Part #	Mfr.	Description	Datasheet	Availability	Pricing (GBP) Filter the results in the table by unit price based on your quantity.	Qty.
RF Transceiver +13/-116 dBm sub-GHz transceiver SI4455-C2A-GMR Silicon Labs 1: £4.44 38,006In Stock	Mfr. Part No. SI4455-C2A-GMR Mouser Part No 634-SI4455-C2A-GMR	Silicon Labs	RF Transceiver +13/-116 dBm sub-GHz transceiver Learn More about Silicon Labs silabs si4455 transceivers	Datasheet	38,006In Stock	Cut Tape £4.44 £3.15 £2.91 £2.64 View Reel £2.38 £2.51 £2.43 £2.39 £2.38	Min.: 1 Mult.: 1 : 2,500
RF Receiver -116 dBm sub-GHz receiver SI4355-B1A-FMR Silicon Labs 1: £3.22 19,642In Stock NRND	Mfr. Part No. SI4355-B1A-FMR Mouser Part No 634-SI4355-B1A-FMR NRND	Silicon Labs	RF Receiver -116 dBm sub-GHz receiver Learn More about Silicon Labs si4355 rf receivers	Datasheet	19,642In Stock	Cut Tape £3.22 £2.52 £2.31 £2.09 View Reel £1.80 £1.98 £1.96 £1.85 £1.80 MouseReel Available	Min.: 1 Mult.: 1 : 2,500
Sub-GHz Development Tools Si4010 Development Kit with Si4355 Receiver (434MHz) 4010-KFOBDEV-434 Silicon Labs 1: £231.59 6In Stock	Mfr. Part No. 4010-KFOBDEV-434 Mouser Part No 634-4010-KFOBDEV-434	Silicon Labs	Sub-GHz Development Tools Si4010 Development Kit with Si4355 Receiver (434MHz) Learn More about Silicon Labs ezradio tools	Datasheet	6In Stock	£231.59	Min.: 1 Mult.: 1
Sub-GHz Development Tools EU +20dBm 868MHz ETSI Cat 1 RF Pico board 4463CPCE20C868SE Silicon Labs 1: £63.62 2In Stock 4Expected 24/11/2026	Mfr. Part No. 4463CPCE20C868SE Mouser Part No 634-4463CPCE20C868SE	Silicon Labs	Sub-GHz Development Tools EU +20dBm 868MHz ETSI Cat 1 RF Pico board Learn More about Silicon Labs ezradio tools	Datasheet	2In Stock 4Expected 24/11/2026	£63.62	Min.: 1 Mult.: 1
Sub-GHz Development Tools EU +14dBm RF Pico board 4461CPCE14D868 Silicon Labs 1: £47.85 7In Stock	Mfr. Part No. 4461CPCE14D868 Mouser Part No 634-4461CPCE14D868	Silicon Labs	Sub-GHz Development Tools EU +14dBm RF Pico board Learn More about Silicon Labs ezradio tools	Datasheet	7In Stock	£47.85	Min.: 1 Mult.: 1
Sub-GHz Development Tools US/JP +20dBm RF Pico board 4463CPCE20C915 Silicon Labs 1: £47.85 3In Stock Restricted Availability	Mfr. Part No. 4463CPCE20C915 Mouser Part No 634-4463CPCE20C915	Silicon Labs	Sub-GHz Development Tools US/JP +20dBm RF Pico board Learn More about Silicon Labs ezradio tools Product available only to OEM/EMS and design business customers. Product is not shipped to consumers in the EU or the UK. This product will require additional documentation to export from the United States.		3In Stock	£47.85	Min.: 1 Mult.: 1 Restricted Availability
RF Receiver -116 dBm sub-GHz receiver SI4355-C2A-GM Silicon Labs 1: £3.29 523In Stock NRND	Mfr. Part No. SI4355-C2A-GM Mouser Part No 634-SI4355-C2A-GM NRND	Silicon Labs	RF Receiver -116 dBm sub-GHz receiver Learn More about Silicon Labs siliconlabs ezradio	Datasheet	523In Stock	£3.29 £2.85 £2.69 £2.48 View £2.26 £2.17 £1.90 £1.83	Min.: 1 Mult.: 1
Sub-GHz Development Tools Si4010 Development Kit with Si4355 Receiver (868MHz) 4010-KFOBDEV-868 Silicon Labs 1: £242.57 2In Stock	Mfr. Part No. 4010-KFOBDEV-868 Mouser Part No 634-4010-KFOBDEV-868	Silicon Labs	Sub-GHz Development Tools Si4010 Development Kit with Si4355 Receiver (868MHz) Learn More about Silicon Labs ezradio tools	Datasheet	2In Stock	£242.57	Min.: 1 Mult.: 1
Sub-GHz Development Tools +10dBm RF Pico board 4460CPCE10D434 Silicon Labs 1: £47.85 2In Stock	Mfr. Part No. 4460CPCE10D434 Mouser Part No 634-4460CPCE10D434	Silicon Labs	Sub-GHz Development Tools +10dBm RF Pico board Learn More about Silicon Labs siliconlabs ezradio	Datasheet	2In Stock	£47.85	Min.: 1 Mult.: 1
Sub-GHz Development Tools US +20dBm RF Pico board 4463CPCE20C460 Silicon Labs 1: £47.85 9In Stock	Mfr. Part No. 4463CPCE20C460 Mouser Part No 634-4463CPCE20C460	Silicon Labs	Sub-GHz Development Tools US +20dBm RF Pico board Learn More about Silicon Labs ezradio tools	Datasheet	9In Stock	£47.85	Min.: 1 Mult.: 1
Sub-GHz Development Tools EZRadio One-Way Demo Kit (434MHz) EZR-LEDK1W-434 Silicon Labs 1: £88.31 2In Stock	Mfr. Part No. EZR-LEDK1W-434 Mouser Part No 634-EZR-LEDK1W-434	Silicon Labs	Sub-GHz Development Tools EZRadio One-Way Demo Kit (434MHz) Learn More about Silicon Labs ezradio tools	Datasheet	2In Stock	£88.31	Min.: 1 Mult.: 1
Sub-GHz Development Tools EZRadio One-Way Demo Kit (915MHz) EZR-LEDK1W-915 Silicon Labs 1: £74.27 3In Stock Restricted Availability	Mfr. Part No. EZR-LEDK1W-915 Mouser Part No 634-EZR-LEDK1W-915	Silicon Labs	Sub-GHz Development Tools EZRadio One-Way Demo Kit (915MHz) Learn More about Silicon Labs ezradio tools Product available only to OEM/EMS and design business customers. Product is not shipped to consumers in the EU or the UK. This product will require additional documentation to export from the United States.	Datasheet	3In Stock	£74.27	Min.: 1 Mult.: 1 Restricted Availability
Sub-GHz Development Tools EZRadio Two-Way Demo Kit (434MHz) EZR-LEDK2W-434 Silicon Labs 1: £78.59 1In Stock	Mfr. Part No. EZR-LEDK2W-434 Mouser Part No 634-EZR-LEDK2W-434	Silicon Labs	Sub-GHz Development Tools EZRadio Two-Way Demo Kit (434MHz) Learn More about Silicon Labs ezradio tools	Datasheet	1In Stock	£78.59	Min.: 1 Mult.: 1
Sub-GHz Development Tools EZRadio Two-Way Demo Kit (915MHz) EZR-LEDK2W-915 Silicon Labs 1: £139.67 2In Stock Restricted Availability	Mfr. Part No. EZR-LEDK2W-915 Mouser Part No 634-EZR-LEDK2W-915	Silicon Labs	Sub-GHz Development Tools EZRadio Two-Way Demo Kit (915MHz) Learn More about Silicon Labs ezradio tools Product available only to OEM/EMS and design business customers. Product is not shipped to consumers in the EU or the UK. This product will require additional documentation to export from the United States.	Datasheet	2In Stock	£139.67	Min.: 1 Mult.: 1 Restricted Availability
Sub-GHz Development Tools MSC-WMB930 + UPPI-930-RF MSC-F930-PDK Silicon Labs 1: £212.97 2In Stock 4On Order	Mfr. Part No. MSC-F930-PDK Mouser Part No 634-MSC-F930-PDK	Silicon Labs	Sub-GHz Development Tools MSC-WMB930 + UPPI-930-RF Learn More about Silicon Labs ezradio tools	Datasheet	2In Stock 4On Order	£212.97	Min.: 1 Mult.: 1
RF Receiver -116 dBm sub-GHz receiver SI4355-B1A-FM Silicon Labs 1: £3.37 124In Stock NRND	Mfr. Part No. SI4355-B1A-FM Mouser Part No 634-SI4355-B1A-FM NRND	Silicon Labs	RF Receiver -116 dBm sub-GHz receiver Learn More about Silicon Labs si4355 rf receivers	Datasheet	124In Stock	£3.37 £2.71 £2.53 £2.30 View £2.15 £2.10 £2.01 £1.98	Min.: 1 Mult.: 1
RF Transceiver +13/-116 dBm sub-GHz transceiver SI4455-C2A-GM Silicon Labs 1: £4.13 9In Stock NRND	Mfr. Part No. SI4455-C2A-GM Mouser Part No 634-SI4455-C2A-GM NRND	Silicon Labs	RF Transceiver +13/-116 dBm sub-GHz transceiver Learn More about Silicon Labs silabs si4455 transceivers	Datasheet	9In Stock	£4.13 £3.14 £2.90 £2.63 View £2.50 £2.42 £2.38 £2.37	Min.: 1 Mult.: 1
Sub-GHz Development Tools US/JP Bidirectional +20 dBm link 4463C-915-PDK Silicon Labs 1: £321.71 5On Order	Mfr. Part No. 4463C-915-PDK Mouser Part No 634-4463C-915-PDK	Silicon Labs	Sub-GHz Development Tools US/JP Bidirectional +20 dBm link Learn More about Silicon Labs ezradio tools Product available only to OEM/EMS and design business customers. Product is not shipped to consumers in the EU or the UK. This product will require additional documentation to export from the United States.	Datasheet	5On Order	£321.71	Min.: 1 Mult.: 1 Restricted Availability
RF Transmitter 8051 Sub-GHz RF transmitter SI4012-C1001GTR Silicon Labs 1: £2.38 2,500Expected 20/11/2026	Mfr. Part No. SI4012-C1001GTR Mouser Part No 634-SI4012-C1001GTR	Silicon Labs	RF Transmitter 8051 Sub-GHz RF transmitter Learn More about Silicon Labs si4012 rf transmitters	Datasheet	2,500Expected 20/11/2026	Cut Tape £2.38 £1.90 £1.77 £1.62 Reel £1.35 View £1.53 £1.48 £1.41 £1.32 MouseReel Available	Min.: 1 Mult.: 1 : 2,500
RF Transmitter 8051 Sub-GHz RF transmitter SI4012-C1001GT Silicon Labs 1: £2.38 167Expected 27/10/2026	Mfr. Part No. SI4012-C1001GT Mouser Part No 634-SI4012-C1001GT	Silicon Labs	RF Transmitter 8051 Sub-GHz RF transmitter Learn More about Silicon Labs si4012 rf transmitters	Datasheet	167Expected 27/10/2026	£2.38 £1.51 £1.42 £1.36 View £1.33 £1.17	Min.: 1 Mult.: 1
Sub-GHz Development Tools Si4010 Keyfob Demo Kit with AES Capability and Si4355 Receiver (434MHz) 4010-AESK1W-434 Silicon Labs 1: £69.88 Non-Stocked Lead-Time 9 Weeks	Mfr. Part No. 4010-AESK1W-434 Mouser Part No 634-4010-AES1W-434	Silicon Labs	Sub-GHz Development Tools Si4010 Keyfob Demo Kit with AES Capability and Si4355 Receiver (434MHz) Learn More about Silicon Labs ezradio tools	Datasheet	Non-Stocked Lead-Time 9 Weeks	£69.88	Min.: 1 Mult.: 1
Sub-GHz Development Tools Si4010 Keyfob Demo Kit with AES Capability and Si4355 Receiver (915MHz) 4010-AESK1W-915 Silicon Labs 1: £89.40 Non-Stocked Lead-Time 9 Weeks Restricted Availability	Mfr. Part No. 4010-AESK1W-915 Mouser Part No 634-4010-AES1W-915	Silicon Labs	Sub-GHz Development Tools Si4010 Keyfob Demo Kit with AES Capability and Si4355 Receiver (915MHz) Learn More about Silicon Labs ezradio tools Product available only to OEM/EMS and design business customers. Product is not shipped to consumers in the EU or the UK	Datasheet	Non-Stocked Lead-Time 9 Weeks	£89.40	Min.: 1 Mult.: 1 Restricted Availability
Sub-GHz Development Tools Si4010 Keyfob Demo Kit with AES Capability and Si4355 Receiver (315MHz) 4010-AESK1W-315 Silicon Labs 1: £126.01 Non-Stocked Lead-Time 9 Weeks	Mfr. Part No. 4010-AESK1W-315 Mouser Part No 634-4010-AESK1W-315	Silicon Labs	Sub-GHz Development Tools Si4010 Keyfob Demo Kit with AES Capability and Si4355 Receiver (315MHz) Learn More about Silicon Labs siliconlabs ezradio	Datasheet	Non-Stocked Lead-Time 9 Weeks	£126.01	Min.: 1 Mult.: 1
Sub-GHz Development Tools Si4010 Development Kit with Si4355 Receiver (915MHz) 4010-KFOBDEV-915 Silicon Labs 1: £260.87 Non-Stocked Lead-Time 9 Weeks Restricted Availability	Mfr. Part No. 4010-KFOBDEV-915 Mouser Part No 634-4010-KFOBDEV-915	Silicon Labs	Sub-GHz Development Tools Si4010 Development Kit with Si4355 Receiver (915MHz) Learn More about Silicon Labs ezradio tools Product available only to OEM/EMS and design business customers. Product is not shipped to consumers in the EU or the UK	Datasheet	Non-Stocked Lead-Time 9 Weeks	£260.87	Min.: 1 Mult.: 1 Restricted Availability
RF Development Tools +20dBm antenna diversity RF pico board 4463CPCE20A915 Silicon Labs 1: £47.85 Non-Stocked Lead-Time 9 Weeks	Mfr. Part No. 4463CPCE20A915 Mouser Part No 634-4463CPCE20A915	Silicon Labs	RF Development Tools +20dBm antenna diversity RF pico board Learn More about Silicon Labs ezradio tools		Non-Stocked Lead-Time 9 Weeks	£47.85	Min.: 1 Mult.: 1

EZRadio® ISM Band ICs

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EZRadio® ISM Band ICs

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