# BC557-B (Component) ## Description Bipolar Transistors - BJT BC557-B TO-92-3_L4.8-W3.7-P2.54-R LCSC Part Number: C358539 JLCPCB Part Class: Extended Part Manufactured by BLUE ROCKET(蓝箭) ## Component Details - **Owner:** lcsc - **Created:** 10/31/2024 - **Last Updated:** 4/23/2025 - **Visibility:** Public - **Product Info Url:** https://lcsc.com/product-detail/Others_Foshan-Blue-Rocket-Elec-BC557-B_C358539.html - **JLCPCB Part Class:** Extended Part - **Datasheet URL:** https://storage.googleapis.com/graviton-electric-symbols/document_assets/lcsc/2403271726_Foshan-Blue-Rocket-Elec-BC557-B_C358539.pdf - **LCSC Part Number:** C358539 - **Manufacturer Name:** BLUE ROCKET(蓝箭) - **Package or Case Code:** TO-92-3_L4.8-W3.7-P2.54-R - **Part Type:** Bipolar Transistors - BJT - **Manufacturer Part Number:** BC557-B - **Used in:** 4 projects ## 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://www.lcsc.com/product-detail/C358539.html) | N/A | N/A | - **Part Type:** Transistors - **Sub-Type:** BJT - **Manufacturer:** Blue Rocket - **MPN:** BC557-B - **Mount Type:** PCB - **Package / Case Code:** 92-TO - **Pin Count:** 3 ## Pins | Pin | Name | Type | |-----|------|------| | 1 | E | | | 2 | B | | | 3 | C | | --- *Generated from [https://www.flux.ai/lcsc/bc557-b](https://www.flux.ai/lcsc/bc557-b)*