# 81FB-22NL (Component) ## Description RJ45 Transformer 81FB-22NL XFMR-SMD_81FB-22NL LCSC Part Number: C115952 JLCPCB Part Class: Extended Part Manufactured by YDS(元册科技) ## Component Details - **Owner:** lcsc - **Created:** 11/7/2024 - **Last Updated:** 4/29/2025 - **Visibility:** Public - **LCSC Part Number:** C115952 - **Datasheet URL:** https://storage.googleapis.com/graviton-electric-symbols/document_assets/lcsc/2409292033_Shanghai-YDS-Tech-81FB-22NL_C115952.pdf - **Manufacturer Name:** YDS(元册科技) - **Package or Case Code:** XFMR-SMD_81FB-22NL - **JLCPCB Part Class:** Extended Part - **Manufacturer Part Number:** 81FB-22NL - **Part Type:** RJ45 Transformer - **Product Info Url:** https://lcsc.com/product-detail/RJ45-Transformer_YDS-81FB-22NL_C115952.html ## Distributor Pricing (qty 1) *Pricing shown for quantity 1. For price breaks and other quantities, open in Flux.* | Distributor | Unit Price (qty 1) | Stock | |------------|--------------------|-------| | [LCSC](https://lcsc.com/product-detail/pulse-transformers-lan_yds-tech-81fb-22nl_C115952.html) | $1.4475 | 117 | - **Part Type:** Transformers - **MPN:** 81FB-22NL - **Mount Type:** Surface Mount - **Package / Case Code:** SMD - **Pin Count:** 40 ## Pins | Pin | Name | Type | |-----|------|------| | 1 | TD4+ | | | 2 | TD4- | | | 3 | CT | | | 4 | RD4+ | | | 5 | RD4- | | | 6 | RD3- | | | 7 | RD3+ | | | 8 | CT | | | 9 | TD3- | | | 10 | TD3+ | | | 11 | TD2+ | | | 12 | TD2- | | | 13 | CT | | | 14 | RD2+ | | | 15 | RD2- | | | 16 | RD1- | | | 17 | RD1+ | | | 18 | CT | | | 19 | TD1- | | | 20 | TD1+ | | | 21 | TX1+ | | | 22 | TX1- | | | 23 | CT | | | 24 | RX1+ | | | 25 | RX1- | | | 26 | RX2- | | | 27 | RX2+ | | | 28 | CT | | | 29 | TX2- | | | 30 | TX2+ | | | 31 | TX3+ | | | 32 | TX3- | | | 33 | CT | | | 34 | RX3+ | | | 35 | RX3- | | | 36 | RX4- | | | 37 | RX4+ | | | 38 | CT | | | 39 | TX4- | | | 40 | TX4+ | | --- *Generated from [https://www.flux.ai/lcsc/81fb-22nl~u9c2](https://www.flux.ai/lcsc/81fb-22nl~u9c2)*