FNIRSI T4 Multi-purpose Transistor Tester (Blue/Black)

FNIRSI T4 Multi-purpose Transistor Tester is a compact, multifunctional device designed to identify and test a wide range of electronic components with ease. It is ideal for electronics hobbyists, repair technicians, and engineers who need to test semiconductors and passive components. Below is a detailed technical description:

1. Display:

• Type: 1.8-inch TFT LCD color display for clear and detailed component readings.
• Resolution: Displays various parameters and graphs, showing values with good clarity and precision.
• Graphical Interface: The tester provides graphical representation for some components, such as transistor characteristics.

2. Component Testing Capabilities:

• Transistors (BJT, MOSFET):
  • Identifies NPN and PNP transistors.
  • Displays parameters such as current gain (hFE), base-emitter voltage, and collector-emitter saturation voltage.
  • Tests N-channel and P-channel MOSFETs, providing threshold voltage (Vth) and gate capacitance readings.
• Diodes:
  • Measures forward voltage drop and identifies polarity.
• Triacs & Thyristors:
  • Identifies and tests for triggering and latching behavior.
• Capacitors:
  • Measures capacitance from a few picofarads (pF) up to thousands of microfarads (mF), typically in a range of 25pF to 100mF.
• Resistors:
  • Measures resistance with a wide range, from a few ohms to megaohms.
• Inductors:
  • Identifies and measures inductance.
• Zener Diodes:
  • Measures zener voltage for diodes up to 30V.
• LEDs:
  • Identifies polarity and forward voltage of Light Emitting Diodes (LEDs), and can light them up during the test.
• ESR (Equivalent Series Resistance):
  • Tests capacitors for ESR, an essential function for troubleshooting faulty capacitors.

3. Automatic Identification:

• Automatically detects and identifies the connected component type and provides key parameters. This feature significantly reduces the need for manual settings.

4. Operating Voltage:

• Input Power: Powered by a 9V battery (often included) or an optional external power supply via micro USB.

5. Testing Time:

• Fast testing with results displayed in 2-3 seconds for most components.

6. Accuracy:

• Provides highly accurate readings with typical tolerance levels of ±1-3%, depending on the component tested.

7. User Interface & Controls:

• Single-button operation: Simplifies the testing process—just connect the component, press the button, and the device automatically detects and tests the part.
• Display Rotation: The screen can rotate for easy reading from different angles, ensuring user convenience.

8. Sockets and Connectors:

• Testing Terminals: Uses a standard 3-terminal test setup, making it easy to connect components for quick analysis.
• ZIF Socket: Zero Insertion Force (ZIF) socket allows easy component placement without risking damage to leads.

9. Build and Design:

• Compact & Lightweight: Typically measures around 135mm x 70mm x 24mm, making it portable and easy to carry.
• Durable Casing: Housed in a sturdy plastic case with a rubberized edge for additional protection.
• Protective Film: The screen often comes with a protective film to avoid scratches during use.

10. Auto Power-Off:

• Automatically turns off after a period of inactivity to conserve battery life.

11. Additional Features:

• Self-calibration: Supports automatic calibration for accurate measurements, improving precision over time.
• Graph Mode: Visualizes certain transistor characteristics, such as the output curve, for detailed analysis.

12. Typical Use Cases:

• Component Identification: Perfect for identifying unknown components or verifying their functionality.
• Circuit Debugging: Useful for checking components in faulty circuits without desoldering them in some cases.
• Educational Tool: Ideal for electronics beginners and students who want to understand how different components behave.

13. Included Accessories:

• May come with testing clips, probes, or test leads, depending on the specific package.

FNIRSI T4 Multi-purpose Transistor Tester is an affordable and highly capable tool for diagnosing and identifying a variety of components, making it a must-have for anyone working with electronics.

Package contents:

Transistor tester (battery not included) * 1