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Key Features

The DCA Pro is an advanced new design that features a graphics display, USB communications, PC Software and an enhanced component identification library.

- Automatic component type identification.
- Automatic pinout identification (connect any way round).
- The DCA Pro supports all the components that the popular Peak Atlas DCA55 supports, but adds plenty more. Components supported include:
- Transistors (including Darlingtons), Silicon and Germanium types. Measures gain, Vbe and leakage.
- MOSFETs, enhancement mode and depletion mode types. Measure on-threshold (at 5mA) and approx transconductance (for span of 3mA-5mA).
- JFETs, including normally off SiC types. Measures pinch-off voltage (at 5uA) and approx transconductance (for span of 3mA-5mA).
- IGBTs (insulated gate bipolar transistors). Measures on-threshold (at 5mA).
- Diodes and Diode networks.
- LEDs and bicolour LEDs (2 lead and 3 lead types).
- Zener Diodes with measurement of zener voltage up to 9V at 5mA.
- Voltage regulators (measures regulation voltage, drop-out voltage, quiescent current).
- Triacs and Thyristors that require less than 10mA of gate current and holding current.

Stand-alone or with a PC
The instrument can be used stand-alone or connected to a PC. Either way, the DCA Pro will automatically identify the component type, identify the pinout and also measure a range of component parameters such as transistor gain, leakage, MOSFET and IGBT threshold voltages, pn characteristics and much more.

Curve Tracing 
When connected to a PC using the supplied USB cable, a range of low current curve-tracing functions can be performed. Various graph types are available, with more to follow: 
- 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).

Curve tracing is performed using test parameters in the range of +/-12V or +/-12mA. All curve-tracing data can be instantly pasted into Excel© for further graphing and analysis. PC Software is included with the DCA Pro on a Peak USB memory stick. Software designed for Windows XP, Vista, Windows 7 and Windows 8 (all 32 or 64 bit).

ParameterMinTypMaxNote
Bipolar Transistors    
Measurable current gain (hFE) range2 320002
hFE accuracy (hFE<2000)±3% ±5 hFE2,8
hFE test voltage (VCEO)3.0V 9.0V2
hFE collector test current4.75mA5.00mA5.25mA 
Base current for VBE measurement4.75mA5.00mA5.25mA 
VBE accuracy±1% ±0.006V8
VBE resolution 3.0mV6.0mV 
VBE for Darlington identification0.95V1.00V1.80V3
VBE for Darlington (shunted types)0.75V0.80V1.80V4
VBE threshold for germanium 0.55V  
Acceptable VBE  1.80V 
Base-emitter shunt threshold50kΩ60kΩ70kΩ 
Acceptable collector leakage  1.5mA6
Leakage current accuracy±2% ±0.02mA 
MOSFETs/IGBTs    
Enhancement mode VGS(ON) range0.0V 10.0V5
Depletion mode VGS(ON) range-5.0V 0.0V5
VGS(ON) accuracy±2% ±0.01V5
Drain current at VGS(ON)4.75mA5.00mA5.25mA 
Drain-Source voltage at VGS(ON)3.5V 9.0V5
Acceptable gate-source resistance8kΩ   
IGBT collector saturation threshold 0.40V 9
JFETs    
Pinch-off VGS(OFF) range-10.0V 2.5V 
Pinch-off drain-source current4.5μA5.0μA5.5μA 
Turn-on VGS(ON) range-9.0V 2.5V 
Turn-on drain-source test current4.75mA5.00mA5.25mA 
VGS accuracy±2% ±0.01V 
Transconductance (gfs) range  99mA/V 
gfs test drain current span3.0mA to 5.0mA 
gfs accuracy (<20mA/V)±5% ±2mA/V 
gfs accuracy (<20mA/V)±10% ±5mA/V 
ParameterMinTypMaxNote
Thyristors and Triacs    
Gate trigger test current8.0mA10.0mA12.0mA7
Load hold test current 10.0mA15.0mA 
Diodes and LEDs    
Diode forward test current4.75mA5.00mA5.25mA 
Diode forward voltage accuracy±1% ±0.006V 
Acceptable VF for a diode @ 5mA0.15V   
VF for LED identification1.5V 4.0V 
Zener Diodes    
Zener voltage range at 5mA1.8V 9.0V 
Zener voltage range below 5mA 9.0V12.0V 
Zener diode test current0.50mA5.00mA5.25mA 
Voltage Regulators    
Input test voltage range (IQ<3.0mA)1.1V 10.0V 
Input test voltage range (IQ<5.0mA)  8.0V 
Quiescent current range (IQ)0.00mA 5.00mA 
Quiescent current accuracy±2% ±0.02mA 
Dropout voltage range (VDO)0.0V 3.0V 
Dropout voltage accuracy±2% ±0.02V 
Output voltage accuracy±1% ±0.006V 
Load test current0.13mA 1.25mA 
General Parameters    
Peak test current into S/C-15.5mA 15.5mA1
Peak test voltage across O/C-13.5V 13.5V1
Short circuit threshold10Ω20Ω1
Battery type (x1)Alkaline AAA, LR03, MN2400
Battery voltage range1.0V1.5V1.6V 
Battery warning threshold 1.0V  
USB current consumption500mA pk active. ≤2mA sleep
Dimensions (body)103 x 70 x 20 mm 
 4.1" x 2.8" x 0.8" 
Operating temperature range10°C 40°C10
 50°F 104°F10
Notes:
1. Between any pair of test clips.
2. Collector current of 5.0mA. Gain accuracy valid for gains less than 2000.
3. Resistance across reverse biased base-emitter > 60kΩ.
4. Resistance across reverse biased base-emitter < 60kΩ.
5. Load current of 5.0mA.

6. Collector-emitter voltage of 10.0V.
7. Thyristor quadrant I, Triac quadrants I and III.
8. BJT with no shunt resistors.
9. Load current typically 10.0mA.
10. Subject to acceptable LCD visibility.


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Peak Atlas DCA75 Advanced Semiconductor Analyser and Curve Tracer

  • €110.00

  • Price in reward points: 2750

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