SMT Smart Tweezers ST5-AS
Released October 2011
SMD Pre-Calibrated Components Identifier in a Set of Tweezers
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Available technical information:
The basic difference between the old and the new model of SMT Smart Tweezers is a Kelvin probe brought up to the tweezer tips. This significantly reduces noise and therefore improves accuracy of the ST5-AS Tweezers at least 6 times.
Model ST5-AS is charged via installed USB mini port. Li-Ion battery which is used in this newest model increases battery life considerably.
New features introduced in the ST5-AS model are:
Automatic Offset Subtraction, Component Sorting and Designated ESR Measurement.
We have eliminated features: DC and AC Voltage measurements.
The Model ST-AS with regular batteries was discontinued due to the shortage of few key components, which could not be supplied any longer. We had to re-engineer the SMT Smart Tweezers to cope with the long term supply of the key components.
Table below shows the differences between the new ST5-AS model and an old model ST-AS.
Comparison of the ST-AS and New Model ST5-AS of Smart Tweezers
|Old ST-AS Model||New Model ST-5|
|Automatic LCR Measurement||Yes||Yes|
|Manual LCR Measurement||Yes||Yes|
|DC Voltage Measurement||Yes||No|
|AC Voltage Measurement/ Trace Mode||Yes||No|
|Rechargeable Batteries / Charger||Optional||Standard|
|Designated ESR Measurement||No||Yes|
|Automatic Offset Subtraction||No||Yes|
|Test Frequency||0.1, 0.12, 1, 10 kHz +/- 0.25%||0.1, 0.12, 1, 10 kHz +/- 0.25%|
|Test Signal Level||0.32 +/- 10% Vrms||0.32 +/- 10% Vrms|
|Source Impedance||620 Ohms +/- 5%||620 Ohms +/- 5%|
|Resistance||0.1 Ohm to 10 Mohms||0.1 Ohm to 10 Mohms|
|Capacitance||0.5 pF to 5 mF||0.5 pF to 1 mF|
|Inductance||0.5 uH to 1 H||0.5 uH to 1 H|