The term **H47** typically refers to a specific series of high-performance connectors, most notably the **Hirose H47 series**. These are ultra-low-profile, high-speed board-to-fpc (flexible printed circuit) connectors used in modern consumer electronics like smartphones, tablets, and wearables. --- ### 1. Key Technical Specifications The H47 series is designed for devices where internal space is extremely limited. Below are the general technical parameters: | Feature | Specification | | :--- | :--- | | **Pitch** | 0.35 mm | | **Stacking Height** | 0.6 mm (Ultra-low profile) | | **Width** | 1.9 mm | | **Current Rating** | 0.3A per signal pin / 5.0A for power pins | | **Voltage Rating** | 30V AC/DC | | **Mating Cycles** | 10 to 30 cycles | --- ### 2. Core Components and Design The H47 connector system consists of two primary electronic parts: #### A. The Receptacle (Female Connector) * **Structure:** Mounted on the main PCB (Printed Circuit Board). * **Design:** Features a "multi-point contact" design to ensure electrical stability even under vibration or impact. * **Material:** High-temperature thermoplastic with gold-plated copper alloy contacts to prevent oxidation. #### B. The Header (Male Plug) * **Structure:** Usually mounted on the FPC (Flex cable) or a secondary sub-board. * **Locking Mechanism:** Incorporates a "click" sensation (tactile feedback) to confirm a secure mating connection, preventing accidental disconnection during assembly. --- ### 3. Critical Features for Electronics 1. **Power Delivery:** Unlike older micro-connectors, the H47 often includes dedicated **power contacts** at the ends of the connector. This allows the device to draw high current (up to 5A) for fast charging or high-drain components without damaging signal pins. 2. **EMI Shielding:** The metal shell is designed to provide effective grounding, which reduces Electromagnetic Interference (EMI) in high-speed data transmissions (like 5G signals or high-res display data). 3. **Robustness:** Despite the 0.6mm height, the metal fittings are reinforced to protect the plastic body from damage if the header is misaligned during manual assembly. --- ### 4. Common Applications * **Mobile Phones:** Connecting the battery or the display panel to the motherboard. * **Wearables:** Ideal for smartwatches where every micrometer of height matters. * **Camera Modules:** High-speed data transfer from the sensor to the image processor. ---