The Realtek RTL8221B(I)-VB-CG (hereafter referred to as the RTL8221B(I)-VB, except where differences exist) is a highly integrated Ethernet PHY transceiver that is compatible with 10BASE-Te, 100BASE-TX, 1000BASE-T, and 2.5GBASE-T, and is fully compatible with both the IEEE 802.3 standard and the NBASE-T™ Alliance PHY. It provides all the necessary physical layer functions to transmit and receive Ethernet packets over CAT.5e UTP cable.
The RTL8221B(I)-VB uses state-of-the-art DSP technology and Analog Front End (AFE) to enable high-speed data transmission and reception over UTP cable. Functions such as Crossover Detection & Auto-Correction, polarity correction, MDI swap, adaptive equalization, cross-talk cancellation, echo cancellation, timing recovery, RFI protection, thermal management, loopback diagnostic capability, and error correction are implemented in the RTL8221B(I)-VB to provide robust transmission and reception capabilities.
Data transfer between MAC and PHY is via the SERDES (Serializer-Deserializer) interface, which supports SGMII, HiSGMII, and 2500Base-X. The RTL8221B(I)-VB operates at various digital I/O voltages, including 3.3V and 1.8V.
YG GROUP (YUGUANG INTERNATIONAL(HK)CO.,LTD) supports reliable sourcing through quality controls and compliance documentation. Please confirm product requirements, applicable certifications and supporting documents before ordering.
RTL8221B(I)-VB-CG is an authentic electronic component manufactured by Realtek, categorized under Communication & Networking ICs. It is supplied in the standard manufacturer-specified package footprint, providing industry-standard mechanical dimensions and terminal configurations for board-level assembly. Full pinout configurations, physical footprint drawings, and rated operating tolerances are documented in the official RTL8221B(I)-VB-CG datasheet above.
Electronic component spot-market pricing for RTL8221B(I)-VB-CG fluctuates based on real-time global availability, production date codes, minimum order quantities (MOQ), and packaging formats (e.g., Reel, Tube, Tray). Using an RFQ ensures you receive accurate, real-time volume pricing tied to verified, traceable inventory rather than stale catalog estimates.
Lead times for RTL8221B(I)-VB-CG depend on whether stock is dispatched from our central hub or regional franchise partners. Ready-to-ship inventory typically leaves the warehouse within 1–3 business days following quality inspection, while factory-direct or back-ordered allocations are confirmed with an estimated ship date upon RFQ reply.
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| Picture | Part Number | Manufacturer | PDF / RoHS | Stock | Action |
|---|---|---|---|---|---|
| Realtek | -- | 3,150 | ||
| Realtek | -- | 2,110 | ||
| Realtek | -- | 7,240 | ||
| Realtek | -- | 5,570 | ||
| Realtek | 9,040 | |||
| Realtek | -- | 5,650 | ||
| Realtek | -- | 8,730 | ||
| Realtek | -- | 7,970 | ||
| Realtek | -- | 6,850 | ||
| Realtek | -- | 4,890 |
