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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: S/19.35
38,593In Stock

Mfr. Part #
SI4455-C2A-GMR

Mouser Part #
634-SI4455-C2A-GMR

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

Datasheet

38,593In Stock

Cut Tape

S/19.35

S/15.65

S/14.75

S/13.66

View

Reel

S/11.52

Min.: 1
Mult.: 1

: 2,500

RF Receiver -116 dBm sub-GHz receiver

SI4355-B1A-FMR
Silicon Labs
1: S/13.90
19,642In Stock
NRND

Mfr. Part #
SI4355-B1A-FMR

Mouser Part #
634-SI4355-B1A-FMR

NRND

RF Receiver -116 dBm sub-GHz receiver

Datasheet

19,642In Stock

Cut Tape

S/13.90

S/11.83

S/11.21

S/9.85

View

Reel

S/7.94

MouseReel Available

Min.: 1
Mult.: 1

: 2,500

RF Receiver -116 dBm sub-GHz receiver

SI4355-C2A-GM
Silicon Labs
1: S/16.39
733In Stock

Mfr. Part #
SI4355-C2A-GM

Mouser Part #
634-SI4355-C2A-GM

RF Receiver -116 dBm sub-GHz receiver

Datasheet

733In Stock

S/16.39

S/12.34

S/11.33

S/10.24

View

Min.: 1
Mult.: 1

RF Receiver -116 dBm sub-GHz receiver

SI4355-B1A-FM
Silicon Labs
1: S/17.32
999In Stock
NRND

Mfr. Part #
SI4355-B1A-FM

Mouser Part #
634-SI4355-B1A-FM

NRND

RF Receiver -116 dBm sub-GHz receiver

Datasheet

999In Stock

S/17.32

S/13.08

S/11.99

S/10.82

View

Min.: 1
Mult.: 1

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

4463CPCE20C868SE
Silicon Labs
1: S/319.19
4In Stock

Mfr. Part #
4463CPCE20C868SE

Mouser Part #
634-4463CPCE20C868SE

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

Datasheet

4In Stock

S/319.19

Min.: 1
Mult.: 1

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

4463CPCE20C915
Silicon Labs
1: S/238.53
5In Stock

Mfr. Part #
4463CPCE20C915

Mouser Part #
634-4463CPCE20C915

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

5In Stock

S/238.53

Min.: 1
Mult.: 1

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

4463CPSQ20C169SE
Silicon Labs
1: S/238.53
2In Stock

Mfr. Part #
4463CPSQ20C169SE

Mouser Part #
634-4463CPSQ20C169SE

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

2In Stock

S/238.53

Min.: 1
Mult.: 1

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

4461CPCE14D868
Silicon Labs
1: S/238.53
7In Stock

Mfr. Part #
4461CPCE14D868

Mouser Part #
634-4461CPCE14D868

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

Datasheet

7In Stock

S/238.53

Min.: 1
Mult.: 1

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

4010-KFOBDEV-434
Silicon Labs
1: S/1,153.15
4In Stock
2Expected 8/4/2026

Mfr. Part #
4010-KFOBDEV-434

Mouser Part #
634-4010-KFOBDEV-434

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

Datasheet

4In Stock

2Expected 8/4/2026

S/1,153.15

Min.: 1
Mult.: 1

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

4010-KFOBDEV-868
Silicon Labs
1: S/1,210.57
2In Stock

Mfr. Part #
4010-KFOBDEV-868

Mouser Part #
634-4010-KFOBDEV-868

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

Datasheet

2In Stock

S/1,210.57

Min.: 1
Mult.: 1

Sub-GHz Development Tools +10dBm RF Pico board

4460CPCE10D434
Silicon Labs
1: S/238.53
5In Stock

Mfr. Part #
4460CPCE10D434

Mouser Part #
634-4460CPCE10D434

Sub-GHz Development Tools +10dBm RF Pico board

Datasheet

5In Stock

S/238.53

Min.: 1
Mult.: 1

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

4463CPCE20C460
Silicon Labs
1: S/238.53
11In Stock

Mfr. Part #
4463CPCE20C460

Mouser Part #
634-4463CPCE20C460

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

Datasheet

11In Stock

S/238.53

Min.: 1
Mult.: 1

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

EZR-LEDK1W-434
Silicon Labs
1: S/432.07
2In Stock

Mfr. Part #
EZR-LEDK1W-434

Mouser Part #
634-EZR-LEDK1W-434

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

Datasheet

2In Stock

S/432.07

Min.: 1
Mult.: 1

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

EZR-LEDK1W-915
Silicon Labs
1: S/373.68
3In Stock

Mfr. Part #
EZR-LEDK1W-915

Mouser Part #
634-EZR-LEDK1W-915

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

Datasheet

3In Stock

S/373.68

Min.: 1
Mult.: 1

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

EZR-LEDK2W-434
Silicon Labs
1: S/385.36
1In Stock

Mfr. Part #
EZR-LEDK2W-434

Mouser Part #
634-EZR-LEDK2W-434

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

Datasheet

1In Stock

S/385.36

Min.: 1
Mult.: 1

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

EZR-LEDK2W-915
Silicon Labs
1: S/696.76
2In Stock

Mfr. Part #
EZR-LEDK2W-915

Mouser Part #
634-EZR-LEDK2W-915

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

Datasheet

2In Stock

S/696.76

Min.: 1
Mult.: 1

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

MSC-F930-PDK
Silicon Labs
1: S/1,061.68
4In Stock
4Expected 9/21/2026

Mfr. Part #
MSC-F930-PDK

Mouser Part #
634-MSC-F930-PDK

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

Datasheet

4In Stock

4Expected 9/21/2026

S/1,061.68

Min.: 1
Mult.: 1

RF Transmitter 8051 Sub-GHz RF transmitter

SI4012-C1001GT
Silicon Labs
1: S/12.34
371In Stock
400Expected 10/23/2026

Mfr. Part #
SI4012-C1001GT

Mouser Part #
634-SI4012-C1001GT

RF Transmitter 8051 Sub-GHz RF transmitter

Datasheet

371In Stock

400Expected 10/23/2026

S/12.34

S/7.82

S/7.36

S/7.05

View

Min.: 1
Mult.: 1

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

SI4455-C2A-GM
Silicon Labs
1: S/20.79
9In Stock

Mfr. Part #
SI4455-C2A-GM

Mouser Part #
634-SI4455-C2A-GM

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

Datasheet

9In Stock

S/20.79

S/16.47

S/15.26

S/13.82

View

Min.: 1
Mult.: 1

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

4463C-915-PDK
Silicon Labs
1: S/1,667.94
5Expected 9/9/2026

Mfr. Part #
4463C-915-PDK

Mouser Part #
634-4463C-915-PDK

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

Datasheet

5Expected 9/9/2026

S/1,667.94

Min.: 1
Mult.: 1

RF Transmitter 8051 Sub-GHz RF transmitter

SI4012-C1001GTR
Silicon Labs
1: S/12.73
2,500Expected 12/18/2026

Mfr. Part #
SI4012-C1001GTR

Mouser Part #
634-SI4012-C1001GTR

RF Transmitter 8051 Sub-GHz RF transmitter

Datasheet

2,500Expected 12/18/2026

Cut Tape

S/12.73

S/9.93

S/9.15

S/8.17

View

Reel

S/5.99

MouseReel Available

Min.: 1
Mult.: 1

: 2,500

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

4463CPCE30E915R
Silicon Labs
1: S/264.69
5Expected 9/18/2026

Mfr. Part #
4463CPCE30E915R

Mouser Part #
634-4463CPCE30E915R

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

Datasheet

5Expected 9/18/2026

S/264.69

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: S/350.33
Lead-Time 9 Weeks

Mfr. Part #
4010-AESK1W-434

Mouser Part #
634-4010-AES1W-434

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

Datasheet

Lead-Time 9 Weeks

S/350.33

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: S/447.64
Lead-Time 9 Weeks

Mfr. Part #
4010-AESK1W-915

Mouser Part #
634-4010-AES1W-915

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

Datasheet

Lead-Time 9 Weeks

S/447.64

Min.: 1
Mult.: 1

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

4010-AESK1W-315
Silicon Labs
1: S/630.59
Non-Stocked Lead-Time 9 Weeks

Mfr. Part #
4010-AESK1W-315

Mouser Part #
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

S/630.59

Min.: 1
Mult.: 1