The **FH30B** refers to a popular series of high-speed, high-density FPC/FFC (Flexible Printed Circuit / Flexible Flat Cable) connectors manufactured by **Hirose Electric**. These components are widely used in modern electronics to connect displays, touch panels, and internal boards. --- ## 1. Technical Specifications The FH30B series is designed for space-saving and high-speed data transmission. Below are the core technical parameters: | Feature | Specification | | :--- | :--- | | **Pitch** | 0.3 mm | | **Height** | 0.9 mm (Low profile) | | **Mounting** | SMT (Surface Mount Technology) | | **Contact Points** | Bottom contact | | **Actuator Type** | Back-flip (One-touch rotation) | | **Current Rating** | 0.2A AC/DC | | **Voltage Rating** | 30V AC/DC | | **Pin Counts** | Commonly 11, 15, 21, 27, 33, 39, 45, 51, 61, 71, 80, 90 | --- ## 2. Key Design Features ### A. Back-Flip Actuator Unlike traditional front-flip connectors, the FH30B uses a **Back-Flip** mechanism. * **Ease of Use:** The actuator is located at the back, meaning it is not affected by the insertion of the FPC. * **Reliability:** Once closed, it provides a high retention force, preventing the cable from pulling out accidentally. ### B. High-Speed Transmission The internal structure is optimized for high-speed differential signals. It is compatible with standards such as: * eDP (Embedded DisplayPort) * MIPI D-PHY * USB 3.0/3.1 (within specific configurations) ### C. Physical Construction 1. **Housing:** LCP (Liquid Crystal Polymer), UL94V-0 compliant (heat resistant). 2. **Contacts:** Phosphor bronze with gold plating to prevent oxidation and ensure conductivity. 3. **Solder Tabs:** Metal tabs on the sides provide extra mechanical strength when soldered to the PCB. --- ## 3. Part Number Breakdown When ordering or identifying an FH30B component, the code usually follows this format: `FH30B - 80S - 0.3 SHW (05)` * **FH30B:** Series Name. * **80S:** Number of positions (contacts). * **0.3:** Pitch distance in millimeters. * **SHW:** SMT horizontal mounting type. * **(05):** Packaging specification (usually refers to reel quantity). --- ## 4. Application Examples Due to its thinness and high-speed capabilities, it is found in: * **Mobile Devices:** Smartphones and tablets for screen connections. * **Medical Equipment:** Portable ultrasound or imaging devices. * **Automotive:** Infotainment systems and dashboard clusters. * **Wearables:** Smartwatches and AR/VR headsets.