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The thermocouple sense probes used with Analysis Tech air cooled heat sunk fixturing for measuring the case temperature are now available as a separate product. These probes are specifically manufactured by Analysis Tech for measurement of case temperature or the temperature of any surface that is in contact with a heat sink. The benefit of these probes is that small non-coplanarity (surface curvature mismatch) will not influence the accuracy of the device case temperature measurement due to the spring compliance of the thermocouple tip.
The spring-loaded tip has an embedded thermocouple bead which is pressed on to the device case/surface for an accurate surface temperature measurement. The insulating tip provides an ideal low-gradient temperature field in the vicinity of the thermocouple junction for accurate, reproducible case temperature measurements. The Tc Sensor Probe is available in two sizes: "Standard" and "Micro".
Standard Tc Probe Dimensions
| Mounting Barrel Diameter |
10-32 thread, 0.186" (4.73mm) |
| Mounting Barrel Length |
0.730" (18.5 mm) |
| Tc Tip Diameter |
0.090" (2.3 mm) |
| Maximum Compliance Travel |
0.100" (2.5 mm) |
| Minimum Heat Sink Plate Thickness |
0.280" (7 mm) |
| Mounting Specifications |
drill 0.096" through; tap 10-32 blind
@ depth = plate thickness minus 0.060"
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Micro Tc Probe Dimensions
| Mounting Barrel Diameter |
6-32 thread, 0.135" (3.44mm) |
| Mounting Barrel Length |
0.5" (12.5 mm) |
| Tc Tip Diameter |
0.045" (1.16mm) |
| Maximum Compliance Travel |
0.060" (1.5 mm) |
| Minimum Heat Sink Plate Thickness |
0.200" (5 mm) |
| Mounting Specifications |
drill 0.052" through; tap 6-32 blind
@ depth = plate thickness minus 0.040" |
These probes are available in all thermocouple types. The thermocouple wire length is typically 12 inches.
Order Tc-Sensor-X or Tc-MicroSensor-X where x is the desired thermocouple type.
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