FNIRSI® LCR-P1 Multifunction LCR Transistor Capacitor Tester
Product Description
The FNIRSI® LCR-P1 is a multifunction electronic component tester designed for engineers, technicians, electronics repair professionals, and hobbyists. It combines transistor testing, LCR measurement, semiconductor analysis, battery testing, and infrared remote-control decoding in one compact handheld instrument.
The LCR-P1 can identify and analyze a wide range of electronic components, including transistors, diodes, Zener diodes, MOSFETs, JFETs, IGBTs, SCRs, capacitors, resistors, inductors, and batteries. Its automatic identification function detects component types, measures their parameters, and displays pin arrangements to simplify testing.
Equipped with a 1.44-inch color display, the tester provides measurement information such as transistor DC current gain (hFE), diode forward voltage, MOSFET threshold voltage, capacitance, ESR, resistance, inductance, and other component-specific parameters.
The instrument features a replaceable test board and a locking socket for component connections. It also includes a dedicated Zener diode testing mode with a separate K-A-A test area, allowing reverse breakdown voltage measurements up to 32V.
In addition to electronic component testing, the LCR-P1 supports NEC infrared remote-control decoding. It can display the decoded address code, user code, and corresponding infrared waveform, making it useful for remote-control troubleshooting and maintenance.
Powered by a rechargeable 300mAh lithium battery and featuring USB Type-C charging and data connectivity, the FNIRSI LCR-P1 is a convenient tool for electronics workshops, laboratories, repair benches, and component inspection.
Key Features
- Multifunction Component Testing: Tests transistors, diodes, Zener diodes, MOSFETs, JFETs, IGBTs, SCRs, capacitors, resistors, inductors, and batteries.
- Automatic Component Identification: Automatically recognizes component types, identifies pin arrangements, and displays measured parameters.
- Transistor Analysis: Measures DC current gain (hFE), base-emitter voltage, collector-emitter reverse cutoff current, and other transistor parameters.
- MOSFET and FET Testing: Supports JFET, IGBT, and MOSFET testing, including threshold voltage, gate capacitance, drain current, and drain-source resistance where applicable.
- LCR Measurement: Measures capacitance, resistance, and inductance, with additional capacitor parameters including loss coefficient and equivalent series resistance (ESR).
- Dedicated Zener Diode Testing: Independent test mode for measuring Zener diode reverse breakdown voltage up to 32V.
- SCR Testing: Supports unidirectional and bidirectional SCR testing.
- Battery Testing: Measures battery voltage and identifies polarity.
- NEC Infrared Decoding: Decodes compatible NEC infrared remote-control signals and displays address codes, user codes, and waveforms.
- Replaceable Test Board: Provides a replaceable component test board for different testing requirements.
- Locking Test Socket: Secures component leads during testing.
- 1.44-Inch Color Display: Displays component identification, pin configuration, and measurement results.
- Rechargeable Battery: Built-in 300mAh lithium battery with USB Type-C charging.
- Firmware Upgrade Support: Allows firmware updates through a USB Type-C connection to a computer.
Technical Specifications
General Specifications
| Parameter | Specification |
|---|---|
| Brand | FNIRSI |
| Model | LCR-P1 |
| Display | 1.44-inch Color Screen |
| Battery | 300mAh Lithium Battery |
| Charging Interface | USB Type-C |
| Charging Specification | 5V / 1A |
| Product Dimensions | 71 × 87 × 28mm |
| Operating Temperature | 0–40°C |
| Firmware Upgrade | Supported |
| Infrared Decoding | NEC Protocol |
Component Testing Specifications
| Component Type | Measurement Range / Support | Measured Parameters |
|---|---|---|
| Transistors | 10 < β < 600 | hFE, base-emitter voltage (Ube), Ic/Ie, collector-emitter reverse cutoff current (Iceo, Ices), protective diode forward voltage (Uf) |
| Diodes | Forward voltage drop below 4.5V | Forward voltage drop, junction capacitance, reverse leakage current |
| Zener Diodes – Standard Test Area | 0.01–4.5V | Forward voltage drop and reverse breakdown voltage |
| Zener Diodes – Dedicated K-A-A Test Area | 0.01–32V | Reverse breakdown voltage |
| JFET | Supported | Gate capacitance (Cg), drain current (Id) at Vgs, protective diode forward voltage (Uf) |
| IGBT | Supported | Drain current (Id) at Vgs, protective diode forward voltage (Uf) |
| MOSFET | Supported | Threshold voltage (Vt), gate capacitance (Cg), drain-source resistance (Rds), protective diode forward voltage (Uf) |
| Unidirectional SCR | Turn-on voltage below 5V; gate trigger current below 6mA | Gate voltage |
| Bidirectional SCR | Turn-on voltage below 5V; gate trigger current below 6mA | Gate voltage |
| Capacitors | 25pF–100mF | Capacitance, loss coefficient (Vloss), equivalent series resistance (ESR) |
| Resistors | 0.01Ω–50MΩ | Resistance |
| Inductors | 10µH–1000µH | Inductance, DC resistance |
| Batteries | 0.1–4.5V | Voltage and polarity |
| Infrared Remote Controls | NEC Protocol | User code, data code, and infrared waveform |
Applications
- Transistor Testing: Identifying transistor types, pin arrangements, and DC current gain during component inspection and repair.
- MOSFET and FET Testing: Checking JFET, IGBT, and MOSFET parameters, including threshold voltage and drain-source resistance.
- Capacitor Testing: Measuring capacitance, loss coefficient, and equivalent series resistance (ESR).
- Diode Testing: Checking diode forward voltage, junction capacitance, and reverse leakage current.
- Zener Diode Testing: Measuring Zener diode reverse breakdown voltage using the dedicated test mode.
- Resistor and Inductor Testing: Measuring resistance, inductance, and inductor DC resistance.
- SCR Testing: Checking unidirectional and bidirectional thyristors.
- Battery Checking: Measuring battery voltage and polarity.
- Remote Control Repair: Decoding NEC infrared signals for remote-control troubleshooting and maintenance.
- Electronics Repair and Maintenance: Identifying unknown components and checking electronic parts during circuit troubleshooting.
Package Contents
- FNIRSI LCR-P1 Tester × 1
- USB Data Cable × 1
- Test Hooks × 3
- User Manual × 1
- Packing Box × 1
Frequently Asked Questions (FAQ)
1. What components can the FNIRSI LCR-P1 test?
The LCR-P1 supports testing of transistors, diodes, Zener diodes, MOSFETs, JFETs, IGBTs, SCRs, capacitors, resistors, inductors, and batteries. It also supports NEC infrared remote-control decoding.
2. Can the LCR-P1 automatically identify transistor pins?
Yes. The tester automatically identifies the component type and pin arrangement. For three-pin components such as transistors and MOSFETs, insert the three leads into test positions 1, 2, and 3, secure them using the locking mechanism, and press TEST.
3. Can the FNIRSI LCR-P1 measure capacitor ESR?
Yes. The LCR-P1 measures capacitance and provides additional capacitor parameters, including the loss coefficient (Vloss) and equivalent series resistance (ESR).
4. What is the maximum capacitance the LCR-P1 can measure?
The specified capacitance measurement range is 25pF to 100mF.
5. Can the LCR-P1 test Zener diodes?
Yes. It has a dedicated Zener diode testing mode. The standard 1-2-3 test area supports a range of 0.01–4.5V, while the dedicated K-A-A test area supports reverse breakdown voltage measurements from 0.01–32V.
6. Does the LCR-P1 support MOSFET and IGBT testing?
Yes. It supports JFET, IGBT, and MOSFET testing. Depending on the component type, it can display parameters such as threshold voltage, gate capacitance, drain current, drain-source resistance, and protective diode forward voltage.
7. Can the FNIRSI LCR-P1 decode infrared remote controls?
Yes. It supports NEC protocol infrared decoding. When an infrared signal is received, the instrument displays the address code, user code, and corresponding infrared waveform.
8. Is the FNIRSI LCR-P1 rechargeable?
Yes. It has a built-in 300mAh lithium battery and supports charging through its USB Type-C interface using a 5V/1A power supply.
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