# DF40GL-44DP-0.4V(51) (Component) ## Description 44 Position Connector Header, Outer Shroud Contacts Surface Mount Gold Board-to-board connector plug designed for high-speed PCIe Gen.4 signal transmission. The 44-position SMT connector has a 0.4 mm contact pitch, 16.0 Gbps transmission rate, 30 V AC/DC rating, 0.35 A rated current, 1.5 mm mated height, and an operating temperature range of −55°C to 125°C. #DF40GL #Hirose #BoardToBoardConnector #PCIeGen4 #SMT ## Component Details - **Owner:** silicon-yard - **Created:** 8/17/2026 - **Last Updated:** 8/17/2026 - **Visibility:** Public - **Part Type:** Connector - **Datasheet URL:** https://storage.googleapis.com/graviton-electric-symbols/document_assets/user-uploaded/c120cf746e55a9bb39c8e105374fe4f755bc7a5cf8a997b5da960ee16b3553fb.pdf - **Manufacturer Part Number:** DF40GL-44DP-0.4V_51_ - **Manufacturer Name:** Hirose Electric Co Ltd - **Symbol Style:** parametric-v1 - **License:** https://creativecommons.org/licenses/by/4.0/ - **Part Type:** Connectors - **Sub-Type:** Card Edge Connectors - **MPN:** DF40GL-44DP-0.4V_51_ - **Mount Type:** Surface Mount - **Package / Case Code:** TO - **Pin Count:** 48 ## Pins | Pin | Name | Type | |-----|------|------| | 1 | 1 | | | 2 | 2 | | | 3 | 3 | | | 4 | 4 | | | 5 | 5 | | | 6 | 6 | | | 7 | 7 | | | 8 | 8 | | | 9 | 9 | | | 10 | 10 | | | 11 | 11 | | | 12 | 12 | | | 13 | 13 | | | 14 | 14 | | | 15 | 15 | | | 16 | 16 | | | 17 | 17 | | | 18 | 18 | | | 19 | 19 | | | 20 | 20 | | | 21 | 21 | | | 22 | 22 | | | 23 | 23 | | | 24 | 24 | | | 25 | 25 | | | 26 | 26 | | | 27 | 27 | | | 28 | 28 | | | 29 | 29 | | | 30 | 30 | | | 31 | 31 | | | 32 | 32 | | | 33 | 33 | | | 34 | 34 | | | 35 | 35 | | | 36 | 36 | | | 37 | 37 | | | 38 | 38 | | | 39 | 39 | | | 40 | 40 | | | 41 | 41 | | | 42 | 42 | | | 43 | 43 | | | 44 | 44 | | | G1 | GND | | | G2 | GND__1 | | | G3 | GND__2 | | | G4 | GND__3 | | --- *Generated from [https://www.flux.ai/silicon-yard/df40gl-44dp-0p4v51](https://www.flux.ai/silicon-yard/df40gl-44dp-0p4v51)*