This publication is issued to provide outline information only and (unless specifically agreed to the contrary by the Company in writing) is not to form part of any order
or be regarded as a representation relating to the products or service concerned. We reserve the right to alter without notice the specification, design, price or conditions
of supply of any product or service. Whilst Meggitt Electronic Components products are of the very highest quality and reliability, all electronic components can
occasionally be subject to failure. Where failure of a Meggitt Electronic Components product could result in life threatening consequences, then the circuit and application
must be discussed with the Company. Such areas might include ECG, respiratory. and other medical and nuclear applications and any non fail safe applications circuit.
SPECIFICATION
TYPE SA/SB/SC/SD SERIES
(Page 5 of 5)
S SERIES PTC TEMPERATURE DETECTOR
TYPICAL APPLICATION CIRCUITS
OVER TEMPERATURE PROTECTION SIGNAL CIRCUITS
The deviation across input and output of an electronic circuit results from the tolerance of its components. To eliminate such deviation, a
full series of Over-Temperature Protection (OTP) signal circuits exists. The OTP signal circuits are produced with hybrid technology that
eliminates the component deviation to meet high precision requirement.
There are two basic circuits for OTP application.
(1) Fixed Temperature Enabled Circuit
The Fixed Temperature Enabled Circuit is shown here. This integrates a precise voltage dividing resistor network, Pt-RTD and competitor.
The output is open-collector type for more flexible application.
(2) Fixed Temperature Enabled/Low-Temperature Disabled Circuit
The following figure shows the Fixed-Temperature Enabled/Low-Temperature Disabled Circuit. This circuit is basically the Fixed-
Temperature Enabled Circuit with a positive feedback resistor whose resistance is taken into account in the circuit calculation. Therefore,
the output voltage is enabled at temperature T2 but will not be disabled until temperature drops to T1.
Although named a "OTP Circuits", the above two circuits can be used not only in over-temperature protection but also in other
applications depending on the products the customer requirements.
This publication is issued to provide outline information only and (unless specifically agreed to the contrary by the Company in writing) is not to form part of any order
or be regarded as a representation relating to the products or service concerned. We reserve the right to alter without notice the specification, design, price or conditions
of supply of any product or service. Whilst Meggitt Electronic Components products are of the very highest quality and reliability, all electronic components can
occasionally be subject to failure. Where failure of a Meggitt Electronic Components product could result in life threatening consequences, then the circuit and application
must be discussed with the Company. Such areas might include ECG, respiratory. and other medical and nuclear applications and any non fail safe applications circuit.
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I saw a video tutorial on AD installation component library and shared it.
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