DIY 802.3at PoE+ splitter

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STD DIY 802.3at PoE+ splitter

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Update time： 2021-11-24 05:08:52

Creation time： 2021-04-04 11:43:51

Description

Read the full guide on diy through-hole poe+ splitter.

This post is part of a series on PoE (power-over-ethernet), see the first two posts here:

In this guide, we are taking the concept one step further by using "smart" PoE, by using the 802.3at standard to negotiate the level of power we want from the PoE switch. Read more about 802.3at specification here.

Design Drawing

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BOM

BOM download Purchase Parts

ID	Name	Designator	Footprint	Quantity
1	TJ-L5FYTGHGMCGSFLC2G-A5	POE	LED-TH_BD5.8-P2.54-FD	1
2	3.3K	R9	RES-TH_BD2.4-L6.3-P10.30-D0.6	1
3	ETH-IN	ETH-IN	HEADER 1X8	1
4	ETH-OUT	ETH-OUT	HEADER 1X8	1
5	1nF	C2,C3,C4,C10	CAP-TH_L9.0-W5.0-P10.00-D0.7	4
6	TPS2379DDAR	U1	SOIC-8_L4.9-W3.9-P1.27-LS6.0-BL-EP	1
7	47uF	C1	CAP-TH_BD10.0-P5.00-D1.0-FD	1
8	100nF	C5	CAP-TH_L8.5-W5.0-P5.00-D1.2	1
9	H6062NL	T1	XFMR-SMD_H5007NLT	1
10	OUT-	-	PADPAD	1
11	OUT+	+	PADPAD	1
12	DB107_C84061	D1,D2	DIO-BG-TH_DB107	2
13	75Ω	R1,R2,R3,R4,R5,R6,R7,R8	RES-TH_BD2.3-L3.7-P7.70-D0.9	8
14	63.4Ω	RCLS	RES-TH_BD2.3-L3.7-P7.70-D0.9	1
15	24.9kΩ	RDEN	RES-TH_BD2.3-L3.7-P7.70-D0.9	1
16	10nF	C6,C7,C8,C9	CAP-TH_L8.5-W5.0-P5.00-D1.2	4
17	1X2	J1	HDR-TH_2P-P2.54-V	1
18	VOUT	OUT	HDR-TH_2P-P2.54-V	1