SI3401-E1-GM

Description：IC POE CNTRL 1 CHANNEL 20QFN
Series：-
Mfr：Skyworks Solutions Inc.
Package：Tube

SKU:d0ace6812561 Category: Power Over Ethernet (PoE) Controllers Brand: Skyworks Solutions Inc.

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Product introduction

Product Detailed Parameters

Description：IC POE CNTRL 1 CHANNEL 20QFN
Series：-
Mfr：Skyworks Solutions Inc.
Package：Tube
Type：Controller (PD), DC/DC
Number of Channels：1
Power - Max：15 W
Internal Switch(s)：Yes
Auxiliary Sense：No
Standards：802.3af (PoE)
Voltage - Supply：2.8V ~ 57V
Current - Supply：2mA
Operating Temperature：-40°C ~ 85°C
Mounting Type：Surface Mount
Package / Case：20-VQFN Exposed Pad
Supplier Device Package：20-QFN (5x5)

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SI3401-E1-GM

Overview

The SI3401-E1-GM is a single-channel Power over Ethernet (PoE) controller designed for Powered Device (PD) applications, compliant with the IEEE 802.3af standard. It integrates a DC/DC converter and internal switches within a compact 20-QFN (5x5 mm) package. The device operates on a supply voltage range of 2.8V to 57V with a typical supply current of 2mA. It supports a maximum power output of 15W and functions reliably across an industrial temperature range of -40°C to +85°C.

Feature Summary

Integrates a complete PoE PD interface with an efficient DC/DC converter and internal power switches.
Ensures compliance with IEEE 802.3af standards for reliable power delivery classification.
Features a compact 20-pin QFN footprint optimized for space-constrained printed circuit board layouts.

Applications

IEEE 802.3af compliant Powered Devices
IP cameras and video surveillance systems
Wireless access points and network endpoints

Procurement Notes

Verify component authenticity through authorized Skyworks distributors due to discontinued status. Confirm lot codes against moisture sensitivity level requirements before assembly. Ensure storage conditions maintain integrity as the part is no longer in active production.

Selection Notes

Select this component for designs requiring strict adherence to 802.3af specifications with integrated power conversion. Evaluate thermal performance given the 15W capability within the small QFN package. Consider end-of-life implications for long-term manufacturing support.

Part Context

This controller belongs to the Skyworks SI3400/SI3401 family of PoE solutions. It serves as a specialized power management IC for network infrastructure, replacing discrete component solutions to simplify design and reduce bill of materials complexity in modern networking hardware.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Designers should consult official Skyworks obsolescence notices or engineering change orders for valid replacement strategies.

How to buy

Online and offline orders are supported. If the item is available for online purchase, you can place it in the cart; for wholesale pricing, please contact our product manager for a quote.

Payment Method

Payment methods: T/T, WeChat Pay, credit cards, Google Pay, Apple Pay . Buyer covers shipping, fees, duties, and taxes; contact our product manager if you need a contract/procurement process.

Delivery time

In-stock items usually ship within 24 hours. Otherwise, shipment is arranged 1 to 2 days after the items arrive at our warehouse. Timing depends on destination and shipping method.

Freight calculation

Freight cost depends on destination, package size, and weight . We offer shipping options via DHL, FedEx, UPS, and TNT , and can ship using your freight account upon request.

Mode of Transportation

We ship via DHL, FedEx, UPS, and TNT. If you prefer a specific logistics provider, we can ship using your designated carrier.

Return and Refund

Returns are accepted within 60 days of invoice with RMA approval. Items must be resalable; original invoice and test report are required. No returns for customer errors.