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BCM5421SA2KPF Gigabit Ethernet PHY transceiver supporting 10BASE-T, 100BASE-TX, and 1000BASE-T. Provides GMII, RGMII, and SGMII MAC interfaces and Auto MDI/MDIX.
Mfr Part #:

BCM5421SA2KPF

Available from 2 distributors
Mfr Name: Broadcom Limited
Broadcom Limited
Gigabit Ethernet PHY transceiver supporting 10BASE-T, 100BASE-TX, and 1000BASE-T. Provides GMII, RGMII, and SGMII MAC interfaces and Auto MDI/MDIX.
✓ Total Stock: 2,041 pcs
$ Price Range: $0.99

BCM5421SA2KPF Available from 2 distributors

✓ Authorised
✓ Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Optech Co.,Limited ✓
Non-Authorised Inventory information
2,039 pcs
On Request
2039 pcs On Request 1 On Request On Request 24+ On Request On Request
Speed Components Ltd ✓
Non-Authorised Inventory information
2 pcs
On Request
2 pcs On Request 1 On Request On Request On Request On Request 2026-04-21 02:15:54
DistyParts aggregates offers from multiple distributors. Final prices, lead times and terms are subject to the distributors' discretion and may change without prior notice. DistyParts is not liable for any discrepancies.

BCM5421SA2KPF Specifications Quick View

Most important parameters for selection – full specs in datasheet.
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BCM5421SA2KPF Description

Short technical summary and product information.

The BCM5421SA2KPF from Broadcom Limited is an Ethernet physical layer (PHY) transceiver designed for 10BASE-T, 100BASE-TX, and 1000BASE-T networks. It complies with IEEE 802.3, 802.3u, and 802.3ab standards.

 

The device offers flexible connectivity to Ethernet MACs through GMII, RGMII, and SGMII interfaces. Auto MDI/MDIX eliminates the need for crossover cables, and both full and half duplex modes are supported. The MDIO interface enables register-level configuration and status monitoring.

 

The BCM5421SA2KPF is available in BGA and QFP package options. It is suitable for a wide range of wired networking equipment, including switches, routers, network interface cards, and other embedded Ethernet designs.

BCM5421SA2KPF Quick Information

Product Type: Ethernet PHY Transceiver
Canonical Name: Broadcom Limited BCM5421SA2KPF 10/100/1000 Ethernet PHY Transceiver
Subcategory: Ethernet Transceivers

BCM5421SA2KPF Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 1 Unlimited
REACH Status: REACH Unaffected

BCM5421SA2KPF Estimated Pricing

Qty Low High
1+ $0.99 $0.99

Estimated market price range - modelled values for guidance only, not live distributor offers.

BCM5421SA2KPF Features

  • Supports 10BASE-T, 100BASE-TX, and 1000BASE-T.
  • Compliant with IEEE 802.3, 802.3u, and 802.3ab.
  • Provides GMII, RGMII, and SGMII interfaces.
  • Supports Auto MDI/MDIX and duplex modes.
  • Available in BGA or QFP package.

BCM5421SA2KPF Applications

  • Used in Ethernet switches and routers.
  • Used in network interface card designs.
  • Supports embedded Gigabit Ethernet systems.
  • Ideal for enterprise networking equipment.

BCM5421SA2KPF FAQs

7 frequently asked questions generated from this part’s specifications.
What Ethernet standards does the BCM5421SA2KPF support?

It supports IEEE 802.3, 802.3u, and 802.3ab.

What MAC interfaces are available on the BCM5421SA2KPF?

It provides GMII, RGMII, and SGMII interfaces.

Does the BCM5421SA2KPF support Auto MDI/MDIX?

Yes, Auto MDI/MDIX is supported.

What data rates does the BCM5421SA2KPF support?

It supports 10BASE-T, 100BASE-TX, and 1000BASE-T, which correspond to 10, 100, and 1000 Mbps.

What duplex modes are supported by the BCM5421SA2KPF?

It supports full and half duplex modes.

What package options are available for the BCM5421SA2KPF?

It is available in BGA and QFP packages.

Does the BCM5421SA2KPF include an MDIO interface?

Yes, it includes an MDIO interface for register access.

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