Velleman DCA55

Semiconductor Component Analyzer Tool

Features

• 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 for Enhancement Mode MOSFETs
• Semiconductor forward voltage measurement for diodes, LEDs and transistor Base-Emitter junctions
• Automatic and manual power-off

Specifications

• Specification Summary at 20°C (68°F) unless otherwise specified
• 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
• Transistor:
  • 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 kΩ - 70 kΩ
  • BJT collector test current: 2.45 mA - 2.55 mA
  • BJT acceptable leakage: 0.7 mA
  • MOSFET:
    • 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 kΩ
  • Depletion drain test current: 4.5 mA
  • JFET drain-source test current: 0.5 mA - 5.5 mA
• SCR/Triac:
  • Gate test current: 4.5 mA
  • Load test current: 5.0 mA
• Diode:
  • Test current: 5.0 mA
  • Voltage accuracy: -2% -20 mV to +2% +20 mV
  • Vf for LED identification: 1.50 V - 4.00 V
  • Short circuit threshold: 10 Ω
• Battery:
  • Type: MN21 / L1028 / GP23A 12 V alkaline
  • Voltage range: 7.50 V - 12 V
  • Warning threshold: 8.25 V
• Dimensions: 103 x 70 x 20 mm (4.1" x 2.8" x 0.8")
• Weight per product (nett): 0.098kg (3.5oz)
• Operating temperature range: 0°C to 50°C (32°F to 122°F)