The **PCC-SMP-K-100-R** is a specialized electronic component primarily used in temperature measurement and instrumentation. It is a subminiature thermocouple connector designed for Printed Circuit Board (PCB) mounting. --- ### 1. Key Technical Specifications | Feature | Specification | | :--- | :--- | | **Part Number** | PCC-SMP-K-100-R | | **Thermocouple Type** | Type K (Chromel-Alumel) | | **Connector Type** | Subminiature Female Socket | | **Mounting Style** | PCB Mount (Horizontal/Right Angle) | | **Contact Material** | Type K Compensated Alloys | | **Temperature Rating** | Up to 220°C (425°F) | | **Quantity/Packaging** | Typically sold in packs of 100 (-100 suffix) | --- ### 2. Detailed Electronic Characteristics #### A. Material Compensation Unlike standard copper connectors, the internal pins of the PCC-SMP-K are made from **Type K thermocouple alloys**. This is critical because: * It prevents the introduction of "cold junction" errors at the connection point. * It maintains the integrity of the millivolt (mV) signal generated by the thermocouple wire. #### B. Mechanical Interface The "SMP" designation indicates it is a **Subminiature** design. It features: * **Transistor Retainer Clip:** The "-R" in the part number often signifies a revision or specific mounting feature (like a spring-loaded clip) that holds the connector securely to the PCB before and after soldering. * **Polarization:** The sockets are sized differently (one wide, one narrow) to ensure the thermocouple plug cannot be inserted backwards, preventing polarity reversal. #### C. Electrical Connection * **PCB Pins:** The connector features solder pins that allow it to be integrated directly onto a circuit board. This is commonly found in handheld digital thermometers, data loggers, and industrial controllers. --- ### 3. Typical Applications * **Data Loggers:** Allowing multiple thermocouple probes to be plugged into a single board. * **Temperature Controllers:** Used as the input interface for PID controllers. * **Test Equipment:** Integrated into automated test benches where temperature monitoring is required. --- ### 4. Circuit Design Tip When using this part on a PCB, ensure that the traces leading from the connector to the Analog-to-Digital Converter (ADC) or Cold Junction Compensation (CJC) sensor are kept as close together as possible to minimize electrical noise interference.