The **ZD30L-AE3-R** is a specific surface-mount electronic component, typically categorized as a **Low Dropout (LDO) Voltage Regulator** or a **Zener Diode complex** depending on the specific manufacturer (commonly associated with UTC - Unisonic Technologies). Below is the technical breakdown of the part based on standard semiconductor naming conventions and datasheets for this series. --- ### 1. Technical Specifications The "30" in the part number usually denotes the voltage rating (3.0V). | Parameter | Specification | | :--- | :--- | | **Output Voltage** | 3.0V | | **Package Type** | SOT-23 (Small Outline Transistor) | | **Pin Count** | 3 Pins | | **Configuration** | Fixed Output | | **Tolerance** | ±2% to ±5% (Typical) | | **Operating Temp** | -40°C to +85°C | --- ### 2. Part Number Breakdown The suffixing follows a specific logic used by semiconductor manufacturers: * **ZD**: Series Prefix (Often indicating a Zener-based regulator or specific IC line). * **30L**: 3.0V Low-power / Low-dropout characteristic. * **AE3**: Refers to the **SOT-23** package type. * **R**: Tape & Reel packaging (for automated SMD assembly). --- ### 3. Pin Configuration (SOT-23) For most regulators in this footprint, the pinout follows this standard mapping: | Pin Number | Function | Description | | :--- | :--- | :--- | | 1 | **GND** | Ground connection | | 2 | **VOUT** | Regulated 3.0V Output | | 3 | **VIN** | Unregulated Input Voltage | --- ### 4. Key Applications Because of its small size and specific voltage output, the ZD30L-AE3-R is commonly used in: 1. **Battery Powered Devices:** Providing a stable 3.0V rail for microcontrollers. 2. **Handheld Electronics:** Voltage regulation in space-constrained PCBs. 3. **Reference Voltage:** Providing a precise reference for Analog-to-Digital Converters (ADCs). --- ### 5. Schematic Symbol Example ```text +-------+ VIN | 3 | 2 VOUT (3.0V) ---->| |----> | 1 | +-------+ | GND ```