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Atlas DCA75 Pro Semiconductor Analyser and Curve Tracer

Code: N49NQ

Atlas DCA75 Pro Semiconductor Analyser and Curve Tracer is rated 5.0 out of 5 by 2.
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  • An advanced component analyser capable of measuring a range of components and a PC interface for data logging
  • Measure a range of component parameters such as gain, leakages, MOSFET and IGBT threshold
  • The DCA75 Pro automatically identifies pinout allowing you to connect the component either way round

Product details

Atlas DCA75 Pro Semiconductor Analyser and Curve Tracer

• An advanced component analyser capable of measuring a range of components and a PC interface for data logging
• Measure a range of component parameters such as gain, leakages, MOSFET and IGBT threshold
• The DCA75 Pro automatically identifies pinout allowing you to connect the component either way round
• Requires one AAA battery (included)
• Measures just 103mm x 70mm x 20mm

What components can I test with this analyser?
This analyser is capable of testing a multitude of different components. These include: transistors (including Darlingtons), MOSFETs, JFETs, IGBTs (insulated gate bipolar transistors), diodes, LEDs, Zener diodes, voltage regulators, triacs and thyristors.

What is the advantage of plugging the DCA75 in to a computer?
By plugging the DCA75 into a computer there are a range of low current curve tracing functions available with various graph types. This allows you to test the following:
Bipolar transistor output characteristics, IC vs VCE.
Bipolar transistor gain characteristics, hFE vs VCE.
Bipolar transistor gain characteristics, hFE vs IC.
MOSFET and IGBT output function, ID vs VDS.
MOSFET and IGBT transfer function, ID vs VGS.
JFET output function, ID vs VDS.
JFET transfer function, ID vs VGS.
Voltage regulator, VOUT vs VIN.
Voltage regulator, IQ vs VIN.
PN junction I/V curves, forward and reverse options (for Zener diodes).

What is the curve tracing used for?
Curve tracing is used to analyse the characteristic of discrete semiconductor devices such as diodes, transistors and thyristors. The DCA75 applies a varying voltage to two terminals of the component and measures the amount of current that the test item permits to flow at each voltage. This is then shown on your PC screen as a curved graph.

Parameter Minimum Typical Maximum
Bipolar Transistors
Measurable current gain (hFE) range 2 32000
hFE accuracy (hFE<2000) ±3% ±5 hFE
hFE test voltage (VCEO) 3.0 V 9.0 V
hFE collector test current 4.75 mA 5.00 mA 5.25 mA
Base current for VBE measurement 4.75 mA 5.00 mA 5.25 mA
VBE accuracy ±1% ±0.006 V
VBE resolution 3.0 mV 6.0 mV
VBE for Darlington identification 0.95 V 1.00 V 1.80 V
VBE for Darlington (shunted types) 0.75 V 0.80 V 1.80 V
VBE threshold for germanium 0.55 V
Acceptable VBE 1.80 V
Base-emitter shunt threshold 50 kΩ 60 kΩ 70 kΩ
Acceptable collector leakage 1.5 mA
Leakage current accuracy ±2% ±0.02 mA
MOSFETs/IGBTs
Enhancement mode VGS(ON) range 0.0 V 10.0 V
Depletion mode VGS(ON) range -5.0 V 0.0 V
VGS(ON) accuracy ±2% ±0.01 V
Drain current at VGS(ON) 4.75 mA 5.00 mA 5.25 mA
Drain-Source voltage at VGS(ON) 3.5 V 9.0 V
Acceptable gate-source resistance 8 kO
IGBT collector saturation threshold 0.40 V
JFETs
Pinch-off VGS(OFF) range -10.0 V 2.5 V
Pinch-off drain-source current 4.5µA 5.0 µA 5.5 µA
Turn-on VGS(ON) range -9.0 V 2.5 V
Turn-on drain-source test current 4.75 mA 5.00 mA 5.25 mA
VGS accuracy ±2% ±0.01 V
Transconductance (gfs) range 99 mA/V
gfs test drain current span 3.0 mA to 5.0 mA
gfs accuracy (<20mA/V) ±5% ±2 mA/V
gfs accuracy (<20mA/V) ±10% ±5 mA/V
Thyristors and Triacs
Gate trigger test current 8.0 mA 10.0 mA 12.0 mA
Load hold test current 10.0 mA 15.0 mA
Diodes and LEDs
Diode forward test current 4.75 mA 5.00 mA 5.25 mA
Diode forward voltage accuracy ±1% ±0.006 V
Acceptable VF for a diode @ 5mA 0.15 V
VF for LED identification 1.5 V 4.0 V
Zener Diodes
Zener voltage range at 5mA 1.8 V 9.0 V
Zener voltage range below 5mA 9.0 V 12.0 V
Zener diode test current 0.50 mA 5.00 mA 5.25 mA
Voltage Regulators
Input test voltage range (IQ<3.0mA) 1.1 V 10.0 V
Input test voltage range (IQ<5.0mA) 8.0 V
Quiescent current range (IQ) 0.00 mA 5.00 mA
Quiescent current accuracy ±2% ±0.02 mA
Dropout voltage range (VDO) 0.0 V 3.0 V
Dropout voltage accuracy ±2% ±0.02 V
Output voltage accuracy ±1% ±0.006 V
Load test current 0.13 mA 1.25 mA
General Parameters
Peak test current into S/C -15.5 mA 15.5 mA
Peak test voltage across O/C -13.5 V 13.5 V
Short circuit threshold 5 Ω 10 Ω 20 Ω
Battery voltage range 1.0 V 1.5 V 1.6 V
Battery warning threshold 1.0 V
USB current consumption 500 mA pk active. =2 mA sleep
Operating temperature range 10 °C 40 °C
Rated 5 out of 5 by from I'm really happy with the DCA75: it is so easy to use and it reveals so much information. It's just excellent
Date published: 2013-10-07
Rated 5 out of 5 by from A Must Have ! I bought one of these a few weeks ago, great piece of kit, how did I ever get by without one? Connection to PC is a great idea, can then display more data & then also powered by the PC. Seems to test all types of Transisters, diodes, SCR's, & Voltage Regulators.
Date published: 2015-10-12
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does it measure capacitance

Asked by: jimpyjim
No
Answered by: Les
Date published: 2016-11-16
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Bulk Prices

Item code Item name Quantity Price
N49NQ Atlas DCA75 Pro Semiconductor Analyser and Curve Tracer (100+) £107.99
N49NQ Atlas DCA75 Pro Semiconductor Analyser and Curve Tracer (25+) £111.59
N49NQ Atlas DCA75 Pro Semiconductor Analyser and Curve Tracer (10+) £113.99
N49NQ Atlas DCA75 Pro Semiconductor Analyser and Curve Tracer (5+) £116.39
N49NQ Atlas DCA75 Pro Semiconductor Analyser and Curve Tracer (1+) £119.99

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