Step1: Product
Silicon Labs SI4021-A1-FTR
Image shown is a representation only
Manufacturer
Manufacturer No
SI4021-A1-FTR
Package
16-TSSOP (0.173", 4.40mm Width)
Packaging
Tape & Reel (TR)
Description
RF TX IC FSK 433/868MHZ 16TSSOP
Detailed Description
RF Transmitter FSK, OOK 433MHz, 868MHz, 915MHz 8dBm 512kbps PCB, Surface Mount Antenna 16-TSSOP (0.173", 4.40mm Width)
Datasheet
Series
EZRadio®
Frequency
433MHz, 868MHz, 915MHz
Packaging
Tape & Reel (TR)
Applications
General Purpose
Manufacturer
Silicon Labs
Mounting Type
Surface Mount
Data Interface
PCB, Surface Mount
Package / Case
16-TSSOP (0.173", 4.40mm Width)
Power - Output
8dBm
Data Rate (Max)
512kbps
Voltage - Supply
2.2V ~ 5.4V
Antenna Connector
PCB, Surface Mount
Base Product Number
SI4021
DigiKey Programmable
Not Verified
Operating Temperature
-40°C ~ 85°C
Current - Transmitting
24mA
Modulation or Protocol
FSK, OOK
Supplier Device Package
16-TSSOP
| Attribute | Value |
|---|---|
| Series | EZRadio® |
| Frequency | 433MHz, 868MHz, 915MHz |
| Packaging | Tape & Reel (TR) |
| Applications | General Purpose |
| Manufacturer | Silicon Labs |
| Mounting Type | Surface Mount |
| Data Interface | PCB, Surface Mount |
| Package / Case | 16-TSSOP (0.173", 4.40mm Width) |
| Power - Output | 8dBm |
| Data Rate (Max) | 512kbps |
| Voltage - Supply | 2.2V ~ 5.4V |
| Antenna Connector | PCB, Surface Mount |
| Base Product Number | SI4021 |
| DigiKey Programmable | Not Verified |
| Operating Temperature | -40°C ~ 85°C |
| Current - Transmitting | 24mA |
| Modulation or Protocol | FSK, OOK |
| Supplier Device Package | 16-TSSOP |
Purchase & Inquiry
Placing an Order
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Available Payment Methods
For your convenience, we accept several payment methods in USD, including PayPal, credit card, and wire transfer.
RFQ (Request for Quote)
We recommend submitting an RFQ to receive the latest pricing and inventory information for the parts you need.
Our sales team will respond to your request by email within 24 hours.
Important Notes
1. You will receive an order information email in your inbox. Please check your spam folder if you do not find the email.
2. Since inventory and pricing may change from time to time, our sales manager will reconfirm your order and notify you if any updates are needed.
Payment Method
Shipping Method
- Shipped from
- Hongkong/Shenzhen warehouse
- Estimated Ship Date
- Oct 3, 2026 - Oct 4, 2026
- Lead Time
- Contact us to confirm availability
- Shipping Fee
- Calculated based on your destination
Packages
