Evertester Instrument Co., Limited| Manufacturer
Evertester Instrument Co., Limited

China Manufacturer with main products: Sound Level Meter, Tachometer, Resistance Meter, Clamp Meter, Infrared Thermometer, Light Meter, Hardness Tester, Thermo-Hygrometer

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Transistor Tester

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Place of Origin: Guangdong in China

Specifications

Transistor tester
ET-294, 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. It also can be used to test the withstand voltage of capacitor, protection voltage of varistor and isolation of electrical. Meanwhile it can test 78 and 79 series three-terminal voltage regulator.
The tester has adopted the large scale integrated circuit for analogue/digital conversion. With high sensitivity and accuracy, it adopts liquid crystal display which can be read directly. With compact structure and convenient operation, it is portable and especially suitable for inspection and screening of devices and components in electronic factories as well as application of technicians engaged in electronic work, lab staff, maintainers and radio fans.
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, Ta capacitor, Leaded multilayer ceramic capacitor, high voltage locker.
  • Measuring protection voltage of varistor.
  • Measuring starting voltage of neon bulb, neon lamp.
  • Measuring constant voltage value of 78,79 series three-pole circuit.
Specifications
Function
Range
Display Scope
Resolution
Operation Condition
V(BR)
1000V
0-1999V
1V
breakdown current < 1mA
200V
0-199.9V
0.1V
breakdown current < 1mA
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
10mA(Ib)
0-199.9
0.1
Ib≈10mA
1mA(Ib)
0-1999
1
Ib≈1mA
1μA(Ib)
0-1999
1
Ib≈0.01mA
ICEO
2000μA
0-1999μA
1μA
Vce ≈ 27V
78,79 three-pole constant voltage value
78xx/79xx
0-24.0V
0.1V
Ui ≈ 27V

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