Si3474 Power Source Equipment (PSE) ICs

Skyworks Solutions Inc. Si3474 Power Source Equipment (PSE) ICs add up to four 90W 802.3bt PSE PoE ports or up to eight 30W 802.3at/af PoE ports. These ICs provide a versatile solution for industrial and commercial Ethernet switches and security recording equipment. The Si3474 ICs can be operated in autonomous mode with full power on each port or in hosted I2C configurable mode. These devices improve thermal performance using a 200mΩ sense resistor option or uses industry-standard 255mΩ. The Si3474 ICs are available in a 56-pin 8mm x 8mm package with an industry-standard pinout.

Results: 8
Select Image Part #
 Mfr.
Description Datasheet Availability Pricing (USD) Filter the results in the table by unit price based on your quantity.
Qty. RoHS ECAD Model Type
Standard
Current Limit
Operating Supply Voltage
Minimum Operating Temperature
Maximum Operating Temperature
Mounting Style
Package / Case
Packaging
Skyworks Solutions, Inc. Power Switch ICs - POE / LAN IEEE 802.3bt four ethernet port PSE controller with 255mO current sense resistor
Datasheet
112In Stock
Min.: 1
Mult.: 1

Power Sourcing Equipment - PSE 802.3bt 425 mA 3.3 V - 40 C + 85 C SMD/SMT QFN-38 Tray
Skyworks Solutions, Inc. Power Switch ICs - POE / LAN IEEE 802.3bt four ethernet port PSE controller with 200mO current sense resistor
Datasheet
260Expected 10/29/2026
Min.: 1
Mult.: 1

Power Sourcing Equipment - PSE 802.3bt 425 mA 3.3 V - 40 C + 85 C SMD/SMT QFN-56 Tray
Skyworks Solutions, Inc. Power Switch ICs - POE / LAN IEEE 802.3bt four ethernet port PSE controller with 255mO current sense resistor
Datasheet
Non-Stocked Lead-Time 20 Weeks
Min.: 2,500
Mult.: 2,500
: 2,500

Power Sourcing Equipment - PSE 802.3bt SMD/SMT QFN-56 Reel
Skyworks Solutions, Inc. Power Switch ICs - POE / LAN IEEE 802.3bt four ethernet port PSE controller with 200mO current sense resistor
Datasheet
Non-Stocked Lead-Time 20 Weeks
Min.: 2,500
Mult.: 2,500
: 2,500

Power Sourcing Equipment - PSE 802.3bt SMD/SMT QFN-56 Reel
Skyworks Solutions, Inc. Power Switch ICs - POE / LAN IEEE 802.3bt four ethernet port PSE controller with 255mO current sense resistor
Datasheet
Non-Stocked Lead-Time 16 Weeks
Min.: 260
Mult.: 260

Power Sourcing Equipment - PSE 802.3bt Tray
Skyworks Solutions, Inc. Power Switch ICs - POE / LAN IEEE 802.3bt four ethernet port PSE controller with 255mO current sense resistor
Datasheet
Non-Stocked Lead-Time 16 Weeks
Min.: 2,500
Mult.: 2,500
: 2,500

Power Sourcing Equipment - PSE 802.3bt Reel
Skyworks Solutions, Inc. Power Switch ICs - POE / LAN IEEE 802.3bt four ethernet port PSE controller with 200mO current sense resistor
Datasheet
Non-Stocked Lead-Time 16 Weeks
Min.: 260
Mult.: 260

Power Sourcing Equipment - PSE 802.3bt Tray
Skyworks Solutions, Inc. Power Switch ICs - POE / LAN IEEE 802.3bt four ethernet port PSE controller with 200mO current sense resistor
Datasheet
Non-Stocked Lead-Time 16 Weeks
Min.: 2,500
Mult.: 2,500
: 2,500

Power Sourcing Equipment - PSE 802.3bt Reel