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SI4421-A1-FTR
SI4421-A1-FTR
Not For New Designs
RF Transceiver Ics
Description:  IC RF TXRX ISM<1GHZ 16TSSOP
Manufacturer:  Silicon Labs
Datasheet:   SI4421-A1-FTR Datasheet
History Price: $6.885
In Stock: 2050
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Specification
PDF Datasheet
Equivalent
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Slogan
Updated
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Click and see latest prices from Digikey Electronics
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The 21 years electronic components professional supplier
Apr 17, 2026
Feilifei
SI4421-A1-FTR
9650
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New and original
Apr 17, 2026
One River Electronics Ltd
SI4421-A1-FTR
41375
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One River: Quality components, competitive prices, fast shipping, 1-year warranty
Apr 17, 2026
HAODE TECHNOLOGY
SI4421-A1-FTR
31170
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Click and send your RFQ
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Hard Find Electronics Ltd.
SI4421-A1-FTR
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Sourcing hard-to-find electronic components
Apr 17, 2026
SI4421-A1-FTR Specification
Specification
Mfr Part
SI4421-A1-FTR
Category
RF Transceiver Ics
Manufacturer
Silicon Labs
Series
-
Packaging
Tape & Reel (TR)
Status
Not For New Designs
Environmental Compliance
Lead Free
Radiation Hardening
No
REACH SVHC
No SVHC
RoHS
Compliant
HS Code
-
Technical Parameter
Programmable
Not Verified
Type
TxRx Only
RF Family/Standard
General ISM < 1GHz
Protocol
-
Modulation
FSK
Frequency
315MHz, 434MHz, 868MHz, 915MHz
Data Rate (Max)
256kbps
Power - Output
7dbm
Sensitivity
-110dBm
Memory Size
-
Serial Interfaces
SPI
GPIO
-
Voltage - Supply
2.2V ~ 3.8V
Current - Receiving
11mA ~ 13mA
Current - Transmitting
15mA ~ 24mA
Operating Temperature
-40 ℃ ~ 85 ℃
Mounting Type
Surface Mount
SI4421-A1-FTR PDF Datasheet
SI4421-A1-FTR Datasheet
Click and Download: SI4421-A1-FTR Datasheet
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SI4421-A1-FTR Compare Parts
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    Customer Reviews
    4.95 out of 5.00 stars from 126 customer reviews from all over the world
    João Victor
    Brazil
    5 stars
    2026-04-12 22:31
    All right Not Tested
    Samuel
    Spain
    5 stars
    2026-04-12 19:45
    Very correct and corresponds to the description. I have been born several and they are within their value
    Juliana Rocha Almeida
    Brazil
    5 stars
    2026-04-12 17:14
    Good quality components, well packaged
    Gilberto
    Brazil
    5 stars
    2026-04-12 15:12
    Got everything right
    Juan Antonio
    Spain
    5 stars
    2026-04-12 13:29
    All as described, it came quickly, in 10 days
    Hugo Fernández
    Spain
    5 stars
    2026-04-12 13:06
    Excellent product, very fast shipping indeed was amazed, 100% recommended…
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