GM328 Transistor Tester - Resistance Meter, Inductance Meter, Capacitance Meter, ESR Meter

Use the ATMEAG328P DIP-28 single-chip microcontroller. Equip with IC socket

The display unit uses a 160x128 pixel color display, with a total of 8x20 characters, 16-bit color depth, and graphic display elements symbols

Rotary encoder switch control, one-key measurement, automatic shutdown

Powered by 9V stacked batteries, or can be powered by a power adapter, the overall current is about 30mA, and the current after shutdown is about 20nA

Automatically detects NPN and PNP transistors, field effect transistors, diodes, double diodes, thyristors, power transistors, automatically distinguishes the pin distribution of the above transistors

Test the common-emitter current amplification coefficient, base-emitter threshold voltage, and cut-off collector-emitter leakage current of NPN and PNP transistors

Identify Darlington transistors through the base-emitter threshold voltage and high current amplification coefficient

Detect the built-in protection diode of power transistors and field effect transistors

Test the gate-source conduction threshold voltage, on-off resistance, and gate-source capacitance of the field effect transistor

Measure two resistors at a time, so that the adjustable resistors with three pins can also be measured. If the adjustable resistor is adjusted to the end, only one resistance value can be measured

The resistance measurement resolution is 0.01. It can measure up to 50M

The capacitance measurement range is from 25pF to 100mF, with a resolution of