The **BS-32-R** typically refers to a specific model of a **Battery Holder** (specifically for CR2032 coin cell batteries) or, in some contexts, a small **Piezo Buzzer/Indicator**. However, in the electronic component industry, it is most commonly associated with a **through-hole CR2032 battery retainer**. Below is a detailed breakdown of its electronic and mechanical specifications. --- ## 1. Technical Specifications This component is designed to hold a 3V Lithium coin cell securely to a Printed Circuit Board (PCB). | Parameter | Specification | | :--- | :--- | | **Battery Type** | CR2032, CR2025, CR2016 | | **Mounting Type** | Through-Hole (THT) | | **Contact Material** | Phosphor Bronze (Nickel Plated) | | **Current Rating** | 0.5A - 2.0A (Typical) | | **Voltage Rating** | 250V AC/DC | | **Operating Temp** | -40°C to +85°C | | **Housing** | PBT or Nylon (UL94V-0 Rated) | --- ## 2. Key Features * **Reverse Polarity Protection:** The structural design ensures the battery can only be inserted in one orientation, preventing damage to sensitive components. * **Low Contact Resistance:** The nickel plating minimizes resistance, ensuring a stable voltage supply for Low Power Wide Area Network (LPWAN) devices or RTCs. * **Durability:** The spring-loaded top contact maintains pressure even under vibration, preventing intermittent power loss. --- ## 3. Pin Configuration & Symbols The BS-32-R has two main electrical points of contact: 1. **Positive (+) Terminal:** Usually the metal clip that wraps over the top and sides of the battery. 2. **Negative (-) Terminal:** The flat metal pad at the base of the holder that contacts the bottom of the coin cell. ```mermaid graph LR A[Battery Holder BS-32-R] --> B(Pin 1: Positive +) A[Battery Holder BS-32-R] --> C(Pin 2: Negative -) ``` --- ## 4. Common Applications * **Real-Time Clocks (RTC):** Providing backup power to keep time when the main power is disconnected. * **Computer Motherboards:** Powering the CMOS memory. * **Remote Controls:** Used in small RF or IR transmitters. * **IoT Sensors:** Acting as the primary power source for low-energy Bluetooth (BLE) devices. ---