The part number **PCB.SMAFST.2H.B.HT** identifies a specific high-temperature, surface-mount RF connector. This nomenclature is commonly used by manufacturers like **GradConn** or similar RF component specialists. --- ### 1. Breakdown of Part Number Specifications | Segment | Meaning | Technical Description | | :--- | :--- | :--- | | **PCB** | Platform | Designed specifically for Printed Circuit Board mounting. | | **SMA** | Interface Type | SubMiniature version A (Standard RF interface). | | **F** | Gender | **Female** (Jack) configuration with internal threads. | | **ST** | Orientation | **Straight** (Vertical mount relative to the PCB). | | **2H** | Mounting Style | **2-Hole** Stub/Terminal pattern for mechanical stability. | | **B** | Bulkhead/Body | Indicates a specific body type or plating (usually Brass/Gold). | | **HT** | Temperature | **High Temperature** rating (suitable for Reflow Soldering). | --- ### 2. Technical Features * **Frequency Range:** Typically operates from **DC to 6 GHz** (standard SMA) or up to 18 GHz depending on the specific grade. * **Impedance:** **50 Ohms** (Standard for RF communications). * **Thermal Resistance:** The "HT" designation ensures the insulator (usually PTFE or specialized polymer) can withstand lead-free reflow oven temperatures (up to **260°C**). * **Durability:** Usually rated for 500+ mating cycles. --- ### 3. Application Use Cases This component is typically found in environments requiring robust wireless connectivity and high thermal durability: * **Telecommunications:** Base stations and small cell signal routing. * **Industrial IoT:** Modules that undergo intense surface-mount technology (SMT) production lines. * **Aerospace:** High-vibration environments where the 2-hole mounting provides extra mechanical shear resistance. * **Test & Measurement:** Vertical board-to-cable interfaces. --- ### 4. Mounting Footprint Example While exact dimensions depend on the manufacturer's datasheet, the **2H** designation implies a specific footprint: ```markdown [O] <-- Hole 1 (Mechanical Anchor/Solder) | ( ) <-- Center Signal Pin (SMT Pad) | [O] <-- Hole 2 (Mechanical Anchor/Solder) ```