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PoE - Power over Ethernet Applications & Solutions

TDK PoE - Power over Ethernet Applications and Solutions feature TDK's expanded line of ALT series SMD pulse transformers to be used in combination with ACM and MCZ series common-mode filters. These are used in various PoE applications that are compatible with 1G/2.5G/5G/10GBASE-T, 10/100/1000BASE-T, and PoE+ (600mA) standards. PoE is a technology that allows electrical power and data transmission to be carried simultaneously through a single cable versus through a separate power cord and network cable. PoE reduces the number of cables and wires necessary for installation and allows for design flexibility, as device placement no longer relies on the availability of an electrical outlet. PoE is capable of supporting higher transmission speeds while still providing outstanding reliability and meeting compact design targets. TDK PoE - Power over Ethernet Applications and Solutions allow for greater scalability as the number of connected devices and LAN interfaces on each device continues to grow and more electronic components are used in servers and routers, as well as in other network and communication devices.

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Image	Part #	Mfr.	Description	Datasheet	Availability	Pricing (PEN) Filter the results in the table by unit price based on your quantity.	Qty.
DC/DC Converters - SMD 3.3V uPOL 3A Power Module FS1403-3300-AL TDK 1: S/ 17.48 5,820In Stock	Mfr. Part # FS1403-3300-AL Mouser Part # 810-FS1403-3300-AL	TDK	DC/DC Converters - SMD 3.3V uPOL 3A Power Module Learn More about TDK upol power modules	Datasheet	5,820In Stock	Cut Tape S/ 17.48 S/ 17.13 S/ 16.85 S/ 16.23 View Reel S/ 12.26 S/ 15.96 S/ 15.22 S/ 15.03 S/ 12.26 S/ 12.26 MouseReel Available	Min.: 1 Mult.: 1 : 4,000
Power Transformers - Board Mount 100uH 5V/1.2A 12V/0.5A 12W B82802A0012A215 TDK 1: S/ 15.26 497In Stock	Mfr. Part # B82802A0012A215 Mouser Part # 871-B82802A12A215	TDK	Power Transformers - Board Mount 100uH 5V/1.2A 12V/0.5A 12W Learn More about TDK epcosb82802a	Datasheet	497In Stock	Cut Tape S/ 15.26 S/ 13.82 S/ 12.46 S/ 12.07 Reel S/ 11.56 View S/ 11.72 S/ 11.17 S/ 10.43 S/ 10.08 MouseReel Available	Min.: 1 Mult.: 1 : 300
Power Transformers - Board Mount 40uH 5V/3A 12V/1.25A 30W B82802A0030A220 TDK 1: S/ 21.29 56In Stock	Mfr. Part # B82802A0030A220 Mouser Part # 871-B82802A30A220	TDK	Power Transformers - Board Mount 40uH 5V/3A 12V/1.25A 30W Learn More about TDK epcosb82802a	Datasheet	56In Stock	Cut Tape S/ 21.29 S/ 17.05 S/ 16.39 S/ 15.88 Reel S/ 14.32 View S/ 15.38 S/ 13.82 S/ 13.55 S/ 13.20 MouseReel Available	Min.: 1 Mult.: 1 : 160
Pulse Transformers 170uH 6Terminal Pulse Transformer ALT4532M-171-T001 TDK 1: S/ 5.18 63,925In Stock 32,000Expected 2/1/2027	Mfr. Part # ALT4532M-171-T001 Mouser Part # 810-ALT4532M171T001	TDK	Pulse Transformers 170uH 6Terminal Pulse Transformer Learn More about TDK alt series	Datasheet	63,925In Stock 32,000Expected 2/1/2027	Cut Tape S/ 5.18 S/ 4.59 S/ 4.40 S/ 4.28 View Reel S/ 3.56 S/ 4.16 S/ 3.97 S/ 3.85 S/ 3.68 S/ 3.56 MouseReel Available	Min.: 1 Mult.: 1 : 2,000
Pulse Transformers TRANSFORMERS AUDIO & SIGNAL ALT3232M-151-T001 TDK 1: S/ 4.94 81,206In Stock	Mfr. Part # ALT3232M-151-T001 Mouser Part # 810-ALT3232M151T001	TDK	Pulse Transformers TRANSFORMERS AUDIO & SIGNAL Learn More about TDK alt series	Datasheet	81,206In Stock	Cut Tape S/ 4.94 S/ 4.44 S/ 4.20 S/ 4.09 View Reel S/ 3.36 S/ 3.93 S/ 3.74 S/ 3.63 S/ 3.61 S/ 3.36 MouseReel Available	Min.: 1 Mult.: 1 : 2,000
Pulse Transformers 10G Hi Speed Ethernt Pulse Transformer ALT4532H-121-T10G TDK 1: S/ 6.58 1,404In Stock 2,000Expected 11/16/2026	Mfr. Part # ALT4532H-121-T10G Mouser Part # 810-ALT4532H121T10G	TDK	Pulse Transformers 10G Hi Speed Ethernt Pulse Transformer Learn More about TDK alt series	Datasheet	1,404In Stock 2,000Expected 11/16/2026	Cut Tape S/ 6.58 S/ 5.99 S/ 5.61 S/ 5.45 View Reel S/ 4.52 S/ 5.29 S/ 5.18 S/ 5.06 S/ 4.90 S/ 4.52 MouseReel Available	Min.: 1 Mult.: 1 : 2,000
Audio Transformers / Signal Transformers 10/100 BASE-T 0C-70C 1-PORT B78476A8065A003 TDK 1: S/ 7.51 10,257In Stock	Mfr. Part # B78476A8065A003 Mouser Part # 871-B78476A8065A3	TDK	Audio Transformers / Signal Transformers 10/100 BASE-T 0C-70C 1-PORT Learn More about TDK epcos b78476 modules	Datasheet	10,257In Stock	Cut Tape S/ 7.51 S/ 6.81 S/ 6.34 S/ 6.15 Reel S/ 5.61 View S/ 5.92 S/ 5.41 S/ 5.22 S/ 5.14 MouseReel Available	Min.: 1 Mult.: 1 : 500
Audio Transformers / Signal Transformers 1000 BASE-T -40C+85C 1-PORT B78476A8135A003 TDK 1: S/ 15.96 647In Stock 2,000Expected 11/25/2026	Mfr. Part # B78476A8135A003 Mouser Part # 871-B78476A8135A3	TDK	Audio Transformers / Signal Transformers 1000 BASE-T -40C+85C 1-PORT Learn More about TDK epcos b78476 modules	Datasheet	647In Stock 2,000Expected 11/25/2026	Cut Tape S/ 15.96 S/ 14.44 S/ 13.47 S/ 13.04 Reel S/ 11.83 View S/ 12.26 S/ 11.33 S/ 11.17 MouseReel Available	Min.: 1 Mult.: 1 : 400
Audio Transformers / Signal Transformers 10/100 BASE-T -40C+85C 1-PORT B78476A8247A003 TDK 1: S/ 9.30 6,236In Stock	Mfr. Part # B78476A8247A003 Mouser Part # 871-B78476A8247A3	TDK	Audio Transformers / Signal Transformers 10/100 BASE-T -40C+85C 1-PORT Learn More about TDK epcos b78476 modules	Datasheet	6,236In Stock	Cut Tape S/ 9.30 S/ 8.45 S/ 7.86 S/ 7.63 Reel S/ 7.05 View S/ 7.32 S/ 6.70 S/ 6.62 S/ 6.38 MouseReel Available	Min.: 1 Mult.: 1 : 500
Audio Transformers / Signal Transformers 1000 BASE-T 0C-70C 1-PORT B78476A8249A003 TDK 1: S/ 15.96 694In Stock	Mfr. Part # B78476A8249A003 Mouser Part # 871-B78476A8249A3	TDK	Audio Transformers / Signal Transformers 1000 BASE-T 0C-70C 1-PORT Learn More about TDK epcos b78476 modules	Datasheet	694In Stock	Cut Tape S/ 15.96 S/ 14.44 S/ 14.17 S/ 13.31 Reel S/ 12.57 View S/ 12.18 S/ 11.21 S/ 10.78 Quote MouseReel Available	Min.: 1 Mult.: 1 : 350
Audio Transformers / Signal Transformers 1000 BASE-T -40C+85C 1-PORT B78476A8251A003 TDK 1: S/ 15.96 3,761In Stock	Mfr. Part # B78476A8251A003 Mouser Part # 871-B78476A8251A3	TDK	Audio Transformers / Signal Transformers 1000 BASE-T -40C+85C 1-PORT Learn More about TDK epcos b78476 modules	Datasheet	3,761In Stock	Cut Tape S/ 15.96 S/ 14.44 S/ 13.47 S/ 13.04 Reel S/ 12.34 View S/ 11.91 S/ 11.21 Quote MouseReel Available	Min.: 1 Mult.: 1 : 350
Audio Transformers / Signal Transformers 1000 BASE-T -40C+85C 2-PORT B78476A8252A003 TDK 1: S/ 23.20 453In Stock	Mfr. Part # B78476A8252A003 Mouser Part # 871-B78476A8252A3	TDK	Audio Transformers / Signal Transformers 1000 BASE-T -40C+85C 2-PORT Learn More about TDK epcos b78476 modules	Datasheet	453In Stock	Cut Tape S/ 23.20 S/ 20.98 S/ 20.12 S/ 19.50 Reel S/ 17.87 View S/ 18.88 S/ 17.24 S/ 16.54 S/ 15.69 MouseReel Available	Min.: 1 Mult.: 1 : 350
DC/DC Converters - SMD 5V uPOL 3A Power Module FS1403-5000-AS TDK 1: S/ 22.07 375In Stock 1,750Expected 11/18/2026	Mfr. Part # FS1403-5000-AS Mouser Part # 810-FS1403-5000-AS	TDK	DC/DC Converters - SMD 5V uPOL 3A Power Module Learn More about TDK upol power modules	Datasheet	375In Stock 1,750Expected 11/18/2026	Cut Tape S/ 22.07 S/ 21.68 S/ 21.37 S/ 20.47 Reel S/ 19.31 View S/ 20.12 S/ 19.81 S/ 19.07	Min.: 1 Mult.: 1 : 250
DC/DC Converters - SMD 2.5V uPOL 4A Power Module FS1404-2500-AS TDK 1: S/ 22.77 484In Stock	Mfr. Part # FS1404-2500-AS Mouser Part # 810-FS1404-2500-AS	TDK	DC/DC Converters - SMD 2.5V uPOL 4A Power Module Learn More about TDK upol power modules	Datasheet	484In Stock	Cut Tape S/ 22.77 S/ 22.38 S/ 22.03 S/ 21.14 Reel S/ 19.93 View S/ 20.79 S/ 20.44 S/ 19.66	Min.: 1 Mult.: 1 : 250
Audio Transformers / Signal Transformers 1000 BASE-T 0C-70C 1-PORT B78476A8317A003 TDK 1: S/ 16.93 36In Stock 350Expected 11/25/2026	Mfr. Part # B78476A8317A003 Mouser Part # 871-B78476A8317A3	TDK	Audio Transformers / Signal Transformers 1000 BASE-T 0C-70C 1-PORT Learn More about TDK epcos b78476 modules	Datasheet	36In Stock 350Expected 11/25/2026	Cut Tape S/ 16.93 S/ 14.99 S/ 14.21 S/ 13.51 Reel S/ 12.34 View S/ 11.91 S/ 11.21 S/ 10.78 Quote MouseReel Available	Min.: 1 Mult.: 1 : 350
DC/DC Converters - SMD 3.3V uPOL 3A Power Module FS1403-3300-AS TDK 1: S/ 22.07 200In Stock 500Expected 1/18/2027	Mfr. Part # FS1403-3300-AS Mouser Part # 810-FS1403-3300-AS	TDK	DC/DC Converters - SMD 3.3V uPOL 3A Power Module Learn More about TDK upol power modules	Datasheet	200In Stock 500Expected 1/18/2027	Cut Tape S/ 22.07 S/ 21.68 S/ 21.37 S/ 20.47 Reel S/ 19.31 View S/ 20.12 S/ 19.81 S/ 19.07	Min.: 1 Mult.: 1 : 250
DC/DC Converters - SMD FS1406 series uPOL Sample Kit FS1406-KIT TDK 1: S/ 566.71 5In Stock	Mfr. Part # FS1406-KIT Mouser Part # 810-FS1406-KIT	TDK	DC/DC Converters - SMD FS1406 series uPOL Sample Kit	Datasheet	5In Stock	S/ 566.71 S/ 491.93 View Quote	Min.: 1 Mult.: 1
Pulse Transformers XFRMR LAN 1CT:1CT 200UH ALT4532M-201-T001 TDK 1: S/ 5.06 125,348Expected 2/15/2027	Mfr. Part # ALT4532M-201-T001 Mouser Part # 810-ALT4532M201-T001	TDK	Pulse Transformers XFRMR LAN 1CT:1CT 200UH Learn More about TDK alt series	Datasheet	125,348Expected 2/15/2027	Cut Tape S/ 5.06 S/ 4.59 S/ 4.44 S/ 4.28 View Reel S/ 3.41 S/ 4.16 S/ 4.01 S/ 3.86 S/ 3.74 S/ 3.41 MouseReel Available	Min.: 1 Mult.: 1 : 2,000
Pulse Transformers 2.5G/5G PoE Hi Speed Pulse Transformer ALT4532P-181-T05G TDK 1: S/ 5.84 257,577Expected 2/15/2027	Mfr. Part # ALT4532P-181-T05G Mouser Part # 810-ALT4532P181T05G	TDK	Pulse Transformers 2.5G/5G PoE Hi Speed Pulse Transformer Learn More about TDK alt series	Datasheet	257,577Expected 2/15/2027	Cut Tape S/ 5.84 S/ 5.25 S/ 5.06 S/ 4.90 View Reel S/ 3.80 S/ 4.75 S/ 4.55 S/ 4.44 S/ 4.32 S/ 3.80 MouseReel Available	Min.: 1 Mult.: 1 : 2,000
DC/DC Converters - SMD 5V uPOL 3A Power Module FS1403-5000-AL TDK 1: S/ 17.44 8,000Expected 12/7/2026	Mfr. Part # FS1403-5000-AL Mouser Part # 810-FS1403-5000-AL	TDK	DC/DC Converters - SMD 5V uPOL 3A Power Module Learn More about TDK upol power modules	Datasheet	8,000Expected 12/7/2026	Cut Tape S/ 17.44 S/ 17.09 S/ 16.82 S/ 16.19 View Reel S/ 15.14 S/ 15.92 S/ 15.65 S/ 15.26 S/ 15.14 S/ 15.14 MouseReel Available	Min.: 1 Mult.: 1 : 4,000
DC/DC Converters - SMD 3.3V uPOL 4A Power Module FS1404-3300-AL TDK 1: S/ 18.14 11,978On Order	Mfr. Part # FS1404-3300-AL Mouser Part # 810-FS1404-3300-AL	TDK	DC/DC Converters - SMD 3.3V uPOL 4A Power Module Learn More about TDK upol power modules	Datasheet	11,978On Order On Order Ship Dates Mfr. #: FS1404-3300-AL Stock: 0 On Order: 7,978 Expected 10/26/2026 4,000 Expected 11/18/2026 Factory Lead-Time: 20 Weeks	Cut Tape S/ 18.14 S/ 17.75 S/ 17.48 S/ 16.82 View Reel S/ 15.73 S/ 16.54 S/ 16.27 S/ 15.88 S/ 15.73 S/ 15.73 MouseReel Available	Min.: 1 Mult.: 1 : 4,000
Audio Transformers / Signal Transformers 10/100 BASE-T -40C+85C 1-PORT POE B78476A8248A003 TDK 1: S/ 9.30 7,000Expected 1/15/2027	Mfr. Part # B78476A8248A003 Mouser Part # 871-B78476A8248A3	TDK	Audio Transformers / Signal Transformers 10/100 BASE-T -40C+85C 1-PORT POE Learn More about TDK epcos b78476 modules	Datasheet	7,000Expected 1/15/2027	Cut Tape S/ 9.30 S/ 8.45 S/ 7.86 S/ 7.63 Reel S/ 7.05 View S/ 7.32 S/ 6.70 S/ 6.46 S/ 6.07 MouseReel Available	Min.: 1 Mult.: 1 : 500
Audio Transformers / Signal Transformers 1000 BASE-T 0C-70C 2-PORT POE B78476A8066A003 TDK 1: S/ 31.65 Non-Stocked Lead-Time 12 Weeks	Mfr. Part # B78476A8066A003 Mouser Part # 871-B78476A8066A3	TDK	Audio Transformers / Signal Transformers 1000 BASE-T 0C-70C 2-PORT POE Learn More about TDK epcos b78476 modules	Datasheet	Non-Stocked Lead-Time 12 Weeks	Cut Tape S/ 31.65 S/ 28.10 S/ 26.98 S/ 26.12 Reel S/ 22.65 View S/ 25.30 S/ 22.38 S/ 22.19 Quote MouseReel Available	Min.: 1 Mult.: 1 : 300
Audio Transformers / Signal Transformers 10/100 BASE-T 0C-70C 2-PORT POE B78476A1889A003 TDK 400: S/ 9.65 Non-Stocked Lead-Time 12 Weeks	Mfr. Part # B78476A1889A003 Mouser Part # 871-B78476A1889A3	TDK	Audio Transformers / Signal Transformers 10/100 BASE-T 0C-70C 2-PORT POE Learn More about TDK epcos b78476 modules	Datasheet	Non-Stocked Lead-Time 12 Weeks	Reel S/ 9.65 S/ 9.23 S/ 8.80 S/ 8.60	Min.: 400 Mult.: 400 : 400
Audio Transformers / Signal Transformers 10/100 BASE-T 0C-70C 1-PORT B78476A7694A003 TDK 1: S/ 13.20 Non-Stocked Lead-Time 12 Weeks	Mfr. Part # B78476A7694A003 Mouser Part # 871-B78476A7694A3	TDK	Audio Transformers / Signal Transformers 10/100 BASE-T 0C-70C 1-PORT Learn More about TDK epcos b78476 modules	Datasheet	Non-Stocked Lead-Time 12 Weeks	Cut Tape S/ 13.20 S/ 11.72 S/ 11.09 S/ 10.55 Reel S/ 9.15 View S/ 9.58 S/ 8.80 S/ 8.37 S/ 8.21 MouseReel Available	Min.: 1 Mult.: 1 : 400

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