


Note: The purchased components are stored in your JLCPCB parts library for future PCBA orders only, and cannot be shipped separately.
| Attributes | Value | |
|---|---|---|
| Category | Interface/Ethernet Transceivers | |
| Manufacturer | Realtek Semicon | |
| Package | QFN-48 | |
| Operating Temperature | -40℃~+85℃ | |
| Type | Ethernet Transceiver | |
| Data Rate | 10Mbit/s、100Mbit/s、1Gbit/s、2.5Gbit/s | |
| Voltage - Supply | 1.8V、3.3V | |
| Features | Support optical fiber、IEEE1588 timestamp、Programmable LED indication、Low-power mode、SupportSyncE、SupportMACsec | |
| MAC Interface | SGMII | |
| Ethernet Speed Standards | 100BASE-TX、1000BASE-T、10BASE-TE、2.5GBASE-T |

* Images are for reference only
Note: The purchased components are stored in your JLCPCB parts library for future PCBA orders only, and cannot be shipped separately.

* Images are for reference only
Note: The purchased components are stored in your JLCPCB parts library for future PCBA orders only, and cannot be shipped separately.
RTL8221B-VB-CG technical specifications, attributes, and parameters.
| Attributes | Value | |
|---|---|---|
| Category | Interface/Ethernet Transceivers | |
| Manufacturer | Realtek Semicon | |
| Package | QFN-48 | |
| Operating Temperature | -40℃~+85℃ | |
| Type | Ethernet Transceiver | |
| Data Rate | 10Mbit/s、100Mbit/s、1Gbit/s、2.5Gbit/s | |
| Voltage - Supply | 1.8V、3.3V | |
| Features | Support optical fiber、IEEE1588 timestamp、Programmable LED indication、Low-power mode、SupportSyncE、SupportMACsec | |
| MAC Interface | SGMII | |
| Ethernet Speed Standards | 100BASE-TX、1000BASE-T、10BASE-TE、2.5GBASE-T |
From components to fully assembled PCBs. JLCPCB supports PCB assembly for the RTL8221B-VB-CG. Sign up to receive and start your assembly today →
Step 1 - Pre-order the parts you need from JLCPCB.
Step 2 - Place a PCBA order to have those parts assembled onto your boards.
Step 3 - JLCPCB manufactures and assembles your boards in as fast as 3 days.

RTL8221B-VB-CG datasheets or manufacturer documentation.
Datasheet: RTL8221B-VB-CG Datasheet (PDF)
The RTL8221B-VB-CG schematic symbol and PCB footprint are available in the EasyEDA PCB design tool.