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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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Part #

RF Transceiver +13/-116 dBm sub-GHz transceiver

SI4455-C2A-GMR
Silicon Labs
1: €3.21
38,596In Stock

Mfr. Part No.
SI4455-C2A-GMR

Mouser Part No
634-SI4455-C2A-GMR

RF Transceiver +13/-116 dBm sub-GHz transceiver

Datasheet

38,596In Stock

Cut Tape

€3.21

€2.67

€2.54

€2.53

Reel

€2.37

Min.: 1
Mult.: 1

: 2,500

RF Receiver -116 dBm sub-GHz receiver

SI4355-B1A-FMR
Silicon Labs
1: €2.92
19,642In Stock
NRND

Mfr. Part No.
SI4355-B1A-FMR

Mouser Part No
634-SI4355-B1A-FMR

NRND

RF Receiver -116 dBm sub-GHz receiver

Datasheet

19,642In Stock

Cut Tape

€2.92

€2.39

€2.25

€2.00

Reel

€1.81

MouseReel Available

Min.: 1
Mult.: 1

: 2,500

RF Receiver -116 dBm sub-GHz receiver

SI4355-C2A-GM
Silicon Labs
1: €3.62
733In Stock

Mfr. Part No.
SI4355-C2A-GM

Mouser Part No
634-SI4355-C2A-GM

RF Receiver -116 dBm sub-GHz receiver

Datasheet

733In Stock

€3.62

€2.73

€2.50

€2.26

View

Min.: 1
Mult.: 1

RF Receiver -116 dBm sub-GHz receiver

SI4355-B1A-FM
Silicon Labs
1: €3.83
999In Stock
NRND

Mfr. Part No.
SI4355-B1A-FM

Mouser Part No
634-SI4355-B1A-FM

NRND

RF Receiver -116 dBm sub-GHz receiver

Datasheet

999In Stock

€3.83

€2.89

€2.65

€2.39

View

Min.: 1
Mult.: 1

Sub-GHz Development Tools EU +20dBm 868MHz ETSI Cat 1 RF Pico board

4463CPCE20C868SE
Silicon Labs
1: €72.88
4In Stock

Mfr. Part No.
4463CPCE20C868SE

Mouser Part No
634-4463CPCE20C868SE

Sub-GHz Development Tools EU +20dBm 868MHz ETSI Cat 1 RF Pico board

Datasheet

4In Stock

€72.88

Min.: 1
Mult.: 1

Sub-GHz Development Tools EU +14dBm RF Pico board

4461CPCE14D868
Silicon Labs
1: €54.81
7In Stock

Mfr. Part No.
4461CPCE14D868

Mouser Part No
634-4461CPCE14D868

Sub-GHz Development Tools EU +14dBm RF Pico board

Datasheet

7In Stock

€54.81

Min.: 1
Mult.: 1

Sub-GHz Development Tools US/JP +20dBm RF Pico board

4463CPCE20C915
Silicon Labs
1: €54.81
5In Stock Restricted Availability

Mfr. Part No.
4463CPCE20C915

Mouser Part No
634-4463CPCE20C915

Sub-GHz Development Tools US/JP +20dBm RF Pico board

5In Stock

€54.81

Min.: 1
Mult.: 1

Restricted Availability

Sub-GHz Development Tools EU +20dBm 169MHz ETSI Cat 1 RF Pico board

4463CPSQ20C169SE
Silicon Labs
1: €54.81
2In Stock

Mfr. Part No.
4463CPSQ20C169SE

Mouser Part No
634-4463CPSQ20C169SE

Sub-GHz Development Tools EU +20dBm 169MHz ETSI Cat 1 RF Pico board

2In Stock

€54.81

Min.: 1
Mult.: 1

Sub-GHz Development Tools Si4010 Development Kit with Si4355 Receiver (434MHz)

4010-KFOBDEV-434
Silicon Labs
1: €265.28
4In Stock
2Expected 04/08/2026

Mfr. Part No.
4010-KFOBDEV-434

Mouser Part No
634-4010-KFOBDEV-434

Sub-GHz Development Tools Si4010 Development Kit with Si4355 Receiver (434MHz)

Datasheet

4In Stock

2Expected 04/08/2026

€265.28

Min.: 1
Mult.: 1

Sub-GHz Development Tools Si4010 Development Kit with Si4355 Receiver (868MHz)

4010-KFOBDEV-868
Silicon Labs
1: €277.86
2In Stock

Mfr. Part No.
4010-KFOBDEV-868

Mouser Part No
634-4010-KFOBDEV-868

Sub-GHz Development Tools Si4010 Development Kit with Si4355 Receiver (868MHz)

Datasheet

2In Stock

€277.86

Min.: 1
Mult.: 1

Sub-GHz Development Tools +10dBm RF Pico board

4460CPCE10D434
Silicon Labs
1: €54.81
5In Stock

Mfr. Part No.
4460CPCE10D434

Mouser Part No
634-4460CPCE10D434

Sub-GHz Development Tools +10dBm RF Pico board

Datasheet

5In Stock

€54.81

Min.: 1
Mult.: 1

Sub-GHz Development Tools US +20dBm RF Pico board

4463CPCE20C460
Silicon Labs
1: €54.81
11In Stock

Mfr. Part No.
4463CPCE20C460

Mouser Part No
634-4463CPCE20C460

Sub-GHz Development Tools US +20dBm RF Pico board

Datasheet

11In Stock

€54.81

Min.: 1
Mult.: 1

Sub-GHz Development Tools EZRadio One-Way Demo Kit (434MHz)

EZR-LEDK1W-434
Silicon Labs
1: €98.53
2In Stock

Mfr. Part No.
EZR-LEDK1W-434

Mouser Part No
634-EZR-LEDK1W-434

Sub-GHz Development Tools EZRadio One-Way Demo Kit (434MHz)

Datasheet

2In Stock

€98.53

Min.: 1
Mult.: 1

Sub-GHz Development Tools EZRadio One-Way Demo Kit (915MHz)

EZR-LEDK1W-915
Silicon Labs
1: €85.07
3In Stock Restricted Availability

Mfr. Part No.
EZR-LEDK1W-915

Mouser Part No
634-EZR-LEDK1W-915

Sub-GHz Development Tools EZRadio One-Way Demo Kit (915MHz)

Datasheet

3In Stock

€85.07

Min.: 1
Mult.: 1

Restricted Availability

Sub-GHz Development Tools EZRadio Two-Way Demo Kit (434MHz)

EZR-LEDK2W-434
Silicon Labs
1: €88.32
1In Stock

Mfr. Part No.
EZR-LEDK2W-434

Mouser Part No
634-EZR-LEDK2W-434

Sub-GHz Development Tools EZRadio Two-Way Demo Kit (434MHz)

Datasheet

1In Stock

€88.32

Min.: 1
Mult.: 1

Sub-GHz Development Tools EZRadio Two-Way Demo Kit (915MHz)

EZR-LEDK2W-915
Silicon Labs
1: €159.99
2In Stock Restricted Availability

Mfr. Part No.
EZR-LEDK2W-915

Mouser Part No
634-EZR-LEDK2W-915

Sub-GHz Development Tools EZRadio Two-Way Demo Kit (915MHz)

Datasheet

2In Stock

€159.99

Min.: 1
Mult.: 1

Restricted Availability

Sub-GHz Development Tools MSC-WMB930 + UPPI-930-RF

MSC-F930-PDK
Silicon Labs
1: €243.95
4In Stock
4Expected 21/09/2026

Mfr. Part No.
MSC-F930-PDK

Mouser Part No
634-MSC-F930-PDK

Sub-GHz Development Tools MSC-WMB930 + UPPI-930-RF

Datasheet

4In Stock

4Expected 21/09/2026

€243.95

Min.: 1
Mult.: 1

RF Transmitter 8051 Sub-GHz RF transmitter

SI4012-C1001GT
Silicon Labs
1: €2.64
479In Stock
400Expected 23/10/2026

Mfr. Part No.
SI4012-C1001GT

Mouser Part No
634-SI4012-C1001GT

RF Transmitter 8051 Sub-GHz RF transmitter

Datasheet

479In Stock

400Expected 23/10/2026

€2.64

€1.68

€1.57

€1.51

View

Min.: 1
Mult.: 1

RF Transceiver +13/-116 dBm sub-GHz transceiver

SI4455-C2A-GM
Silicon Labs
1: €4.45
9In Stock

Mfr. Part No.
SI4455-C2A-GM

Mouser Part No
634-SI4455-C2A-GM

RF Transceiver +13/-116 dBm sub-GHz transceiver

Datasheet

9In Stock

€4.45

€3.40

€3.13

€2.84

View

Min.: 1
Mult.: 1

Sub-GHz Development Tools US/JP Bidirectional +20 dBm link

4463C-915-PDK
Silicon Labs
1: €368.51
5Expected 09/09/2026

Mfr. Part No.
4463C-915-PDK

Mouser Part No
634-4463C-915-PDK

Sub-GHz Development Tools US/JP Bidirectional +20 dBm link

Datasheet

5Expected 09/09/2026

€368.51

Min.: 1
Mult.: 1

Restricted Availability

RF Transmitter 8051 Sub-GHz RF transmitter

SI4012-C1001GTR
Silicon Labs
1: €2.64
2,500Expected 18/12/2026

Mfr. Part No.
SI4012-C1001GTR

Mouser Part No
634-SI4012-C1001GTR

RF Transmitter 8051 Sub-GHz RF transmitter

Datasheet

2,500Expected 18/12/2026

Cut Tape

€2.64

€1.97

€1.80

€1.62

€1.53

Reel

€1.29

MouseReel Available

Min.: 1
Mult.: 1

: 2,500

Sub-GHz Development Tools US +30dBm RFMD FEM based RF Pico board

4463CPCE30E915R
Silicon Labs
1: €60.31
5Expected 14/08/2026

Mfr. Part No.
4463CPCE30E915R

Mouser Part No
634-4463CPCE30E915R

Sub-GHz Development Tools US +30dBm RFMD FEM based RF Pico board

Datasheet

5Expected 14/08/2026

€60.31

Min.: 1
Mult.: 1

Restricted Availability

Sub-GHz Development Tools Si4010 Keyfob Demo Kit with AES Capability and Si4355 Receiver (434MHz)

4010-AESK1W-434
Silicon Labs
1: €80.05
Lead-Time 9 Weeks

Mfr. Part No.
4010-AESK1W-434

Mouser Part No
634-4010-AES1W-434

Sub-GHz Development Tools Si4010 Keyfob Demo Kit with AES Capability and Si4355 Receiver (434MHz)

Datasheet

Lead-Time 9 Weeks

€80.05

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: €102.41
Lead-Time 9 Weeks Restricted Availability

Mfr. Part No.
4010-AESK1W-915

Mouser Part No
634-4010-AES1W-915

Sub-GHz Development Tools Si4010 Keyfob Demo Kit with AES Capability and Si4355 Receiver (915MHz)

Datasheet

Lead-Time 9 Weeks

€102.41

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: €144.34
Non-Stocked Lead-Time 9 Weeks

Mfr. Part No.
4010-AESK1W-315

Mouser Part No
634-4010-AESK1W-315

Sub-GHz Development Tools Si4010 Keyfob Demo Kit with AES Capability and Si4355 Receiver (315MHz)

Datasheet

Non-Stocked Lead-Time 9 Weeks

€144.34

Min.: 1
Mult.: 1