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Advanced semiconductor analyzer with curve tracing

Peak DCA75: Atlas DCA Pro Semiconductor Tester

Peak DCA75

Advanced Semiconductor Tester with Curve Tracing

Analyze semiconductors easily with the Peak DCA75: Atlas DCA Pro Semiconductor Tester with Curve Tracing. The new Atlas DCA75 Pro transistor tester offers superb functionality and style. The analysis portfolio is even bigger than the DCA55 while offering enhanced message display and intelligent component identification. This instrument displays incredibly detailed information in fully scrollable pages. The Peak Atlas DCA Pro combines an impressive analysis portfolio that is user-friendly. It will measure the gain of transistors, the threshold voltage of MOSFETs, and semiconductor voltage drops. The Atlas DCA75 has more component testing capabilities than the DCA55, but also offers full curve tracking which is downloadable to an Excel file (via USB).


  • Stand-alone or with a PC
  • Automatic component type identification
  • Automatic pinout identification
  • Special feature identification such as protection diodes and resistor shunts
  • Bipolar transistors: gain and leakage current measurements, silicon and germanium detection
  • Gate threshold measurement foreEnhancement Mode MOSFETs
  • Semiconductor forward voltage measurement for diodes, LEDs and transistor base-emitter junctions
  • Automatic and manual power-off



Peak Test Current into Short Circuit -5.5 mA to 5.5 mA
Peak Test Voltage Across Open Circuit -5.1 V to 5.1 V
Dimensions 4.1 in. x 2.8 in. x 0.8 in. (103 mm x 70 mm x 20 mm)
Weight 3.5 oz (0.098kg)
Operating temperature range 10° - 40°C (50F - 104F)


Gain range (Hfe) 4 - 65 000
Gain accuracy ± 3% ± 5 Hfe
Vceo test voltage 2.0 V - 3.0 V
Vbe accuracy -2% -20 mV to +2% + 20 mV
VBE for Darlington (shunted) 0.95 V - 1.80 V (0.75 V - 1.80 V)
Base-emitter shunt threshold 50 kOhm - 70 kOhm
BJT collector test current 2.45 mA - 2.55 mA
BJT acceptable leakage 0.7 mA
  • Gate Threshold Range: 0.1 V - 5.0 V
  • Threshold Accuracy: -2% -20 mV to +2% +20 mV
  • Drain Test Current: 2.45 mA - 255 mA
  • Gate Resistance: 8 kOhm
Depletion Drain Test Current 4.5 mA
JFET Drain-Source Test Current 0.7 mA


Gate Test Current 4.5 mA
Load Test Current 5.0 mA


Test Current 5.0 mA
Voltage Accuracy -2% -20 mV to +2% +20 mV
Vf for LED Ddentification 1.50 V - 4.00 V
Short Circuit Threshold 10 Ohm


Type MN21 / L1028 / GP23A 12 V alkaline
Voltage Range 7.50 V - 12 V
Warning Threshold 8.25 V

Specification Summary at 20°C (68°F) unless otherwise specified.


User manual
User Guide

User manual
Software Installation Guide

 Warning: this product can expose you to chemicals which are known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go to: www.P65Warnings.ca.gov/product