Atlas DCA55 Semiconductor Analyser

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About this product


Product overview

• Analyser allows you to identify a variety of semiconductors
• The DCA55 supports semiconductors such as transistors, MOSFETs, diodes, JFETs and more
• Test for gain and leakage on transistors, gate thresholds on MOSFETs and more
• Includes one 23A battery
• Measures just 103mm x 70mm x 20mm

What can I do with the DCA55?
The DCA55 will automatically identify and measure a wide range of semiconductor devices. It can identify the type and pinout of the part being tested. It supports bipolar NPN/PNP transistors, Darlingtons, diode-protected transistors, transistors with built-in resistors, enhancement mode MOSFETs, depletion mode MOSFETs, diodes, diode networks, LEDs, two and three lead bicolour LEDs, JFETs and many more.

How easy is this meters to use?
This analyser is very simple to read and use. It automatically detects what you are trying to test and will show you on the LCD screen everything you could want to test.


Parameters Minimum Typical Maximum
Peak test current into S/C -5.5mA 5.5mA
Peak test voltage across O/C -5.1V 5.1V
Measurable transistor gain range (hFE) 4 65,000
Transistor gain accuracy (for hFE<1000) -3%-5 hFE +3%+5 hFE
Transistor VCEO 2.0V 3.0V
Transistor VBE accuracy -2%-20mV +2%+20mV
VBE threshold for Darlington identification 0.9V
VBE threshold for Darlington identification (shunted) 0.8V
Acceptable transistor VBE 1.8V
Base-emitter shunt resistance threshold 60k
Transistor collector-emitter test current 2.45mA 2.50mA 2.55mA
Acceptable transistor collector leakage 1.25mA
MOSFET gate threshold range 0.1V 5.0V
MOSFET gate threshold accuracy -2%-20mV +2%-20mV
MOSFET drain-source test current 2.45mA 2.50mA 2.55mA
MOSFET minimum acceptable gate resistance 8k
Thyristor/Triac gate test current 4.5mA
Thyristor/Triac load test current 5mA
Diode test current 5mA
Diode forward voltage accuracy -2%-2mV +2%+2mV
VF threshold for LED 1.50V
Short circuit detection threshold 10 ohms 10 ohms
Battery voltage range 12V
Battery voltage warning threshold 8.25V
Inactivity power-down period 60 secs
Operating temperature range 0°C 50°C