Recently, Vishay Intertechnology, Inc. (NYSE: VSH) announced the launch of a new surface mount chip resistor, the E/H (Ta 2 N) QPL , which has been tested by QPL MIL-PRF-55342. 100 ppm "M" grade failure rate. The new E/H (Ta 2 N) QPL resistors are fabricated using moisture-resistant tantalum nitride resistive film technology, providing enhanced performance specifications for defense and aerospace applications, including 0.1% tolerance and 25ppm/°C TCR.
E/H (Ta 2 N) QPL resistors are suitable for control systems in defense and aerospace applications where applications need to be considered for working in wet conditions or for long term storage problems. The device's tantalum nitride resistive film ensures moisture levels greater than 50 times the MIL-PRF-55342 limit.
The E/H (Ta 2 N) Mil-PRF-55342 thin film resistor has an extremely low noise of less than -25 dB and a voltage coefficient of 0.5 ppm/V. The wound end of the resistor uses a very viscous adhesive layer. The overlying electroplated nickel gate layer accommodates +150 ° C operating conditions with less than 0.010 Ω for typical resistance.
The new resistors are available in M55342 dimensions from 01 to 12, with power ratings from 50mW to 1000mW and operating voltages from 40V to 200V. The resistance ranges from 49.9 to 3.3M depending on the tolerance.
E/H (Ta 2 N) Mil-PRF-55342 film capacitors are available now in volume production from eight weeks to ten weeks.
Float level gauge is a liquid level measuring instrument which works based on the principle of constant buoyancy in buoyancy (Archimedes theorem).In the gravity field, the vertical upward force on the object in the fluid due to the density difference with the surrounding fluid is buoyancy.
In a liquid, an object whose overall density is lower than the liquid density will eventually float on the liquid surface. This object can be called a float. Under constant conditions, the buoyancy of the float is constant (constant buoyancy).
When the float is subjected to an upward force less than its own weight or a downward force less than the weight of the liquid equivalent to its own volume, the characteristic that the float will eventually float on the liquid surface will not be changed.
In the steady state, the buoyancy of the float is constant.
When the position of the liquid surface changes vertically, the vertical position of the float will change synchronously with the position of the liquid surface under the action of constant buoyancy.
The float level gauge is a device that displays the vertical position of the float in the form that people can read directly through various mechanical, electromagnetic, optical and other physical means.
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Taizhou Jiabo Instrument Technology Co., Ltd. , https://www.taizhoujiabo.com