FNIRSI LCR-T4 – ESR Meter Transistor Tester – 25pF-100mF, 0.1Ω-50MΩ

FNIRSI LCR-T4 ESR Meter Transistor Tester is a multi-purpose device capable of identifying and testing transistors, diodes, resistors, capacitors, inductors, and other components. This tester simplifies the testing process by automatically detecting the type of component and displaying key parameters on a color display.

1. Display:

• Type: 1.8-inch TFT LCD color display.
• Resolution: High resolution for clear visualization of component parameters and graphical data.
• Interface: Simple, single-button operation for easy navigation.

2. Component Testing Capabilities:

• Transistors (BJT, MOSFET, IGBT):
  • Identifies NPN, PNP, N-channel, and P-channel transistors.
  • Measures current gain (hFE), threshold voltage (Vth), and other key parameters.
• Diodes:
  • Identifies polarity and forward voltage drop.
• Thyristors & Triacs:
  • Detects triggering voltage and current parameters.
• Capacitors:
  • Measures capacitance from 25pF to 100mF.
• Inductors:
  • Identifies and measures inductance.
• Resistors:
  • Measures resistance from 0.1Ω to 50MΩ.
• Zener Diodes:
  • Measures breakdown voltage up to 30V.
• LEDs:
  • Tests forward voltage and polarity, and can light up LEDs during testing.
• ESR (Equivalent Series Resistance):
  • Measures ESR of capacitors to diagnose faulty components.

3. Automatic Identification:

• Automatically identifies the type of component and displays its corresponding parameters without manual input.

4. Accuracy:

• Provides accurate readings with an error margin typically within ±1-3%, depending on the component tested.
• The tester also supports self-calibration for improved accuracy over time.

5. Testing Time:

• Quick identification and measurement of components, typically completing tests within 2-3 seconds.

6. Sockets and Connectors:

• ZIF (Zero Insertion Force) Socket: Used to easily insert and remove components for testing without damaging the leads.
• 3-Terminal Test Ports: Simple test connections for a variety of components.

7. Build and Design:

• Compact and Portable: The device typically measures 135mm x 70mm x 24mm, making it lightweight and easy to carry.
• Durable Construction: Encased in sturdy plastic housing with rubber protection for enhanced durability.

8. Power Supply:

• Powered by a standard 9V battery (included in some packages) or via micro USB for continuous power.

9. Data Logging & Memory:

• Stores test results for analyzing and comparing multiple components.
• Data is displayed directly on the device's screen without external logging or wireless transfer.

10. Safety Features:

• Overload Protection: Protects the device from over-voltage or over-current conditions during testing.
• Reverse Polarity Protection: Prevents damage if components are inserted with incorrect polarity.

11. Additional Features:

• Graph Mode: Provides graphical representation for certain transistors and diodes.
• Auto Power-Off: Automatically shuts off after a period of inactivity to conserve battery life.
• Display Rotation: Allows for rotating the display for ease of reading from different angles.

12. Use Cases:

• Component Identification: Ideal for identifying unknown components and verifying their parameters.
• Circuit Debugging: Useful for diagnosing and testing components in faulty circuits.
• Educational Purposes: Helps beginners and students learn about different electronic components and their characteristics.