LCR-T4 Graphical Transistor Tester – ESR Meter & LCR Meter with 12864 LCD for Arduino & DIY Labs

Overview

The LCR-T4 is a multi-function graphical tester that automates the identification of electronic components. It features an easy-to-use ZIF (Zero Insertion Force) socket and a single-button operation. When a component is placed in the tester, it automatically detects the type (NPN, PNP, N-channel MOSFET, JFET, etc.) and displays the pin configuration along with key parameters like Gain (hFE), Threshold Voltage (V_{gs}), and Equivalent Series Resistance (ESR).

Key Features

• Automatic Detection: Automatically detects NPN/PNP transistors, MOSFETs, Diodes, Dual Diodes, Thyristors, Resistors, Capacitors, and Inductors.

• Graphical 12864 LCD: Displays results on a high-resolution backlit screen with clear icons for pinout identification.

• ESR Measurement: Vital for checking the health of electrolytic capacitors—identifies “dry” capacitors that a standard multimeter might miss.

• Single Button Operation: Features an auto-power-off function to preserve the 9V battery life.

• Protective Acrylic Case Compatible: Designed with mounting holes for easy installation into a clear acrylic shell (sold separately).

Technical Specifications 

Measurement Capabilities 

• Transistors: Gain (hFE), Gate Threshold, Junction Capacitance.

• Diodes: Forward Voltage, Diode Capacitance, Reverse Leakage.

• Capacitors: ESR value and $V_{loss}$ (Voltage Loss).