The **FF0825SA1-R3000** is a high-performance, fine-pitch FPC (Flexible Printed Circuit) connector manufactured by **JAE (Japan Aviation Electronics)**. It is specifically designed for space-constrained applications like smartphones, wearables, and medical devices. ### 1. Key Technical Specifications | Feature | Specification | | :--- | :--- | | **Pitch** | 0.2 mm (Ultra-fine pitch) | | **Pin Count** | 25 Positions | | **Mounting Height** | 0.9 mm (Low profile) | | **Orientation** | Right Angle / Horizontal | | **Actuator Type** | Front-Flip (ZIF - Zero Insertion Force) | | **Contact Point** | Upper Contact | | **Rated Current** | 0.35 A per contact | | **Rated Voltage** | 50V AC/DC | --- ### 2. Physical & Mechanical Characteristics * **ZIF Mechanism:** The "Front-Flip" or "Flip-Lock" actuator allows for easy insertion of the FPC cable with zero resistance. Once the cable is in place, the actuator is toggled down to lock the contacts. * **Space-Saving Design:** With a depth of only 3.2 mm (when locked) and a height of 0.9 mm, it is optimized for "thinner" electronics. * **FPC Retention:** The connector usually features a design that provides high retention force to prevent the flexible cable from being pulled out accidentally. --- ### 3. Material Composition | Component | Material | Finish | | :--- | :--- | :--- | | **Insulator** | LCP (Liquid Crystal Polymer) | Heat resistant (UL94V-0) | | **Actuator** | PPS or Heat Resistant Plastic | Durable for multiple cycles | | **Contact** | Copper Alloy | Gold plating over Nickel | | **Solder Tab** | Copper Alloy | Tin plating (for PCB stability) | --- ### 4. Common Applications Due to its 0.2mm pitch and 25-pin density, this part is commonly found in: 1. **Mobile Devices:** Connecting LCD screens, camera modules, or touch panels to the main logic board. 2. **Wearables:** Smartwatches and fitness trackers where internal volume is extremely limited. 3. **Medical Equipment:** Portable handheld diagnostic tools. 4. **Optical Modules:** Small-form-factor cameras and sensors. --- ### 5. Design Considerations for Engineers * **FPC Thickness:** This connector typically requires an FPC thickness of **0.2mm ± 0.03mm** at the mating interface. * **Upper Contact:** Since this is an *Upper Contact* model, the exposed gold pads on your FPC cable must face **upwards** (away from the PCB) when inserted. * **Soldering:** Because of the ultra-fine pitch, automated SMT (Surface Mount Technology) with high-precision vision systems is required to avoid solder bridging.