Features:

1. automatic component type identification
2. automatic pinout identification
3. special feature identification such as protection diodes and resistor shunts
4. bipolar transistors: gain and leakage current measurements, silicon and germanium detection
5. gate threshold measurement for Enhancement Mode MOSFETs
6. semiconductor forward voltage measurement for diodes, LEDs and transistor Base-Emitter junctions
7. automatic and manual power-off

Specifications:

1. peak test current into short circuit: -5.5mA ~ 5.5mA
2. peak test voltage across open circuit: -5.1V ~ 5.1V
3. transistor:
   1. gain range (Hfe): 4 ~ 65000
   2. gain accuracy: ±3% ±5 Hfe
   3. Vceo test voltage: 2.0V ~ 3.0V
   4. Vbe accuracy: -2%-20mV ~ +2%+20mV
   5. VBE for Darlington (shunted): 0.95V ~ 1.80V (0.75V ~ 1.80V)
   6. base-emitter shunt threshold: 50kOhm ~ 70kOhm
   7. BJT collector test current: 2.45mA ~ 2.55mA
   8. BJT acceptable leakage: 0.7mA
   9. MOSFET:
      1. gate threshold range: 0.1V ~ 5.0V
      2. threshold accuracy: -2%-20mV ~ +2%+20mV
      3. drain test current: 2.45mA ~ 255mA
      4. gate resistance: 8kOhm
   10. depletion drain test current: 4.5mA
   11. JFET drain-source test current: 0.5mA ~ 5.5mA
4. SCR/Triac:
   1. gate test current: 4.5mA
   2. load test current: 5.0mA
5. Diode:
   1. test current: 5.0mA
   2. voltage accuracy: -2%-20mV ~ +2%+20mV
   3. Vf for LED identification: 1.50V ~ 4.00V
   4. short circuit threshold: 10Ohm
6. Battery:
   1. type: MN21 / L1028 / GP23A 12V alkaline
   2. voltage range: 7.50V ~ 12V
   3. warning threshold: 8.25V
7. dimensions: 103x70x20mm

dca55_userguide_en.pdf