The part number **47LCT-162B-R** typically refers to a specialized **Current Transformer (CT)**, often used in power monitoring, energy metering, and circuit protection applications. Below is a detailed breakdown of the electronic specifications and characteristics associated with this type of component. --- ### 1. General Specifications Based on standard industry naming conventions for the "LCT" series, here is a breakdown of its physical and electrical profile: | Feature | Description | | :--- | :--- | | **Component Type** | Low-profile Current Transformer | | **Turns Ratio** | Typically 1:500 or 1:1000 (depending on specific revision) | | **Mounting Type** | Through-hole (PCB Mount) | | **Frequency Range** | 50Hz to 400Hz (Standard Power Frequencies) | | **Core Material** | High-permeability Silicon Steel or Ferrite | | **Compliance** | RoHS Compliant | --- ### 2. Key Characteristics * **Encapsulation:** These units are usually epoxy-encapsulated (potted) to provide insulation against moisture, vibration, and high-voltage transients. * **High Accuracy:** Designed for linear output proportional to the input current, making it suitable for digital energy meters. * **Isolation:** Provides excellent galvanic isolation between the high-current primary conductor and the low-voltage secondary sensing circuit. * **Compact Design:** The "LCT" designation often refers to a "Low Profile" or "Linear" CT, allowing it to fit into tight enclosures or rack-mounted power strips. --- ### 3. Application Use Cases This component is commonly integrated into the following systems: 1. **Smart Meters:** Measuring household or industrial electricity consumption. 2. **PDU (Power Distribution Units):** Monitoring load current in data centers to prevent circuit overloads. 3. **AC Motor Protection:** Sensing overcurrent conditions to trigger safety shut-offs. 4. **Inverters:** Monitoring the output current in solar or UPS (Uninterruptible Power Supply) systems. --- ### 4. Circuit Implementation To use this part, the secondary winding is typically connected to a "burden resistor." This converts the output current into a measurable voltage for an Analog-to-Digital Converter (ADC). ```c // Pseudo-code logic for reading current from the CT float get_current_rms(int pin) { int raw_value = analogRead(pin); // Convert ADC units to Voltage float voltage = (raw_value / 1024.0) * V_REF; // Calculate Current based on CT Turns Ratio and Burden Resistor float current = (voltage / BURDEN_RESISTOR) * TURNS_RATIO; return current; } ``` ---