DOUYI Digital Transistor Tester DY294

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DOUYI Digital Transistor Tester DY294 DOUYI Digital Transistor Tester DY294

DOUYI Digital Transistor Tester DY294 DOUYI Digital Transistor Tester DY294

DOUYI Digital Transistor Tester DY294

DUOYI DY294 Digital Transistor Tester

Price: $49.18
SKU: 54714
Price in points: 492 points
Points: 5 points
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DY294, the Digital Transistor DC Parameter Tester, is mainly used for testing the DC parameters of manifold semiconductors such as diode, transistor, controlled silicon and field effect transistor. DuoYI DY294 also can be used to test the withstand voltage of capacitor, protection voltage of varistor and isolation of electrical. Meanwhile DuoYI DY294 can test 78 and 79 series three-terminal voltage regulator.

DuoYI DY294 tester has adopted the large scale integrated circuit for analogue/digital conversion. With high sensitivity and accuracy, DuoYI DY294 adopts liquid crystal display which can be read directly. With compact structure and convenient operation, DuoYI DY294 is portable and especially suitable for inspection and screening of devices and components in electronic factories as well as application of DuoYI DY294 technicians engaged in electronic work, lab staff, maintainers and radio fans.

DY294 Applications

  • Measuring forward voltage, reverse voltage, forward saturation voltage drop,amplification factor, reverse leakage current of various crystal diode, audion, silicon controlled rectifier(SCR), field effect transistor(FET).
  • Measuring rated working voltage of chemical capacitor,terylene capacitor,DuoYI DY294 Ta capacitor,Leaded multilayer ceramic capacitor,high voltage lacker.
  • Measuring protection voltage of varistor.
  • DuoYI DY294 Measuring starting voltage of neon bulb, neon lamp.
  • Measuring constant voltage value of 78,79 series three-pole circuit.


Function Range Display Scope Resolution Operation Condition
DY294 V(BR) 1000V 0-1999V 1V breakdown current < 1mA
200V 0-199.9V 0.1V breakdown current < 1mA
DY294 VCC(Set) 2A(Ic) 0-6.00V 0.01V Ic≈2000mA Ib≈200mA
800mA(Ic) 0-6.00V 0.01V Ic≈800mA Ib≈80mA
100mA(Ic) 0-6.00V 0.01V Ic≈100mA Ib≈1mA
10mA(Ic) 0-6.00V 0.01V Ic≈10mA Ib≈1mA
hFE of DY294 10mA(Ib) 0-199.9 0.1 Ib≈10mA
1mA(Ib) 0-1999 1 Ib≈1mA DY294
1µA(Ib) 0-1999 1 Ib≈0.01mA
ICEO of DY294 2000µA 0-1999µA 1µA Vce ≈ 27V
78,79 three-pole constant voltage value 78xx/79xx 0-24.0V 0.1V Ui ≈ 27V

DY294 Characteristics

DuoYI DY294 Power AA 1.5V*6(UM3)
Product size 150*100*70mm
DY294 Weight 680g
Standard Accessories Leather case
Standard individual packing DuoYI DY294 gift box
Standard Quantity per Carton 20 pcs.
Measurement of Standard Carton 450*330*413mm (0.061 CBM)
Gross weight of DY294  22kgs

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Posted by dupontg on 01/11/2010, 05:25
Involvement: - Ownership:more than 1 month
Price: *****
Ease of Use: *****
Build Quality: *****
Usefulness: *****
Overall Rating: *****
Pros:very nice and usefull