For Reference Only
| Part Number | SI4438-B1C-FM |
| LIXINC Part # | SI4438-B1C-FM |
| Manufacturer | Silicon Labs |
| Category | RF/IF and RFID › RF Transceiver ICs |
| Description | IC RF TXRX+MCU ISM<1GHZ 20VFQFN |
| Lifecycle | Active |
| RoHS | No RoHS Information |
| EDA/CAD Models | SI4438-B1C-FM PCB Footprint and Symbol |
| Warehouses | USA, Europe, China, Hong Kong SAR |
| Estimated Delivery | Jan 25 - Jan 29 2026(Choose Expedited Shipping) |
| Warranty | Up to 1 year [Limited-Warranty]* |
| Payment |
|
| Shipping | ![]() |
| Part Number: | SI4438-B1C-FM |
| Brand: | Silicon Labs |
| Lifecycle: | Active |
| RoHS: | Lead free / RoHS Compliant |
| Category: | RF/IF and RFID |
| Subcategory: | RF Transceiver ICs |
| Manufacturer: | Silicon Labs |
| Series: | - |
| Package: | Tray |
| Part Status: | Active |
| Type: | TxRx + MCU |
| RF Family/Standard: | General ISM < 1GHz |
| Protocol: | - |
| Modulation: | FSK, GFSK, GMSK, OOK |
| Frequency: | 425MHz ~ 525MHz |
| Data Rate (Max): | 500kbps |
| Power - Output: | 20dBm (Max) |
| Sensitivity: | -124dBm |
| Memory Size: | - |
| Serial Interfaces: | SPI |
| GPIO: | 4 |
| Voltage - Supply: | 1.8V ~ 3.6V |
| Current - Receiving: | 14mA |
| Current - Transmitting: | 75mA |
| Operating Temperature: | -40°C ~ 85°C |
| Mounting Type: | Surface Mount |
| Package / Case: | 20-VFQFN Exposed Pad |
| Supplier Device Package: | 20-QFN (4x4) |
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| In Stock | 10820 - More on Order |
|---|---|
| Quote Limit | No Limit |
| Lead-Time | To be Confirmed |
| Minimum | 1 |
Warm Tips: Please fill out the form below. We will contact you as soon as possible.
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1 | $2.58000 | $2.58 |
| 25 | $2.47960 | $61.99 |
| 100 | $2.38430 | $238.43 |
| 1000 | $2.18092 | $2180.92 |
Lixinc will offer the most competitive prices for you, please refer to the quotations.
Please feel free to contact us for details.