Face mounting positive temp coofficient thermister and its manufacturing method

A technology of positive temperature coefficient and thermistor, which is applied in the direction of resistors with positive temperature coefficients, resistors, resistor parts, etc., can solve the problems of high cost and low strength of the box body, and prevent displacement and position Effect of moving and improving operability
CN1285082CInactive Publication Date: 2006-11-15MURATA MFG CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
MURATA MFG CO LTD
Publication Date
2006-11-15
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention provides a surface-mounted positive temperature coefficient thermistor and a manufacturing method thereof. The surface mount type PTC thermistor consists of a plate-shaped PTC thermistor element with electrodes formed on both main surfaces, an insulating case having an inner space into which the PTC thermistor element is inserted, and a The inner space is composed of a pair of metal terminals which are arranged to be electrically connected to both main surfaces of the PTC thermistor element and sandwich the PTC thermistor element. The insulating case has a pair of main surfaces parallel to both main surfaces of the positive temperature coefficient thermistor element arranged in the interior space having a pair of opening side surfaces of an opening exposed to the outside A pair of end faces of the terminal insertion holes are respectively formed. Therefore, when inserting the box body, there is no insertion directionality or only a small directionality, and the advantages of easy manufacture and low cost are obtained.
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Description

technical field

[0001] The invention relates to a positive temperature coefficient thermistor, in particular to a surface mount type positive temperature coefficient thermistor and a manufacturing method thereof. Background technique

[0002] As chip-type positive temperature coefficient thermistors mounted on the surface of a printed circuit board or the like for the purpose of overcurrent protection, products having various structures have been proposed.

[0003] Figure 21 This is a cross-sectional view showing an example of the structure of a conventional surface mount type positive temperature coefficient thermistor. (Refer to Patent Document 1). Figure 21 The surface mount type positive temperature coefficient thermistor 1 is inserted into the resin case 3a having the fitting part of the pin terminal insert molding, and the positive temperature coefficient thermistor element 5 formed with electrodes 4a and 4b on both main surfaces is inserted. , In addition, it is se...

Claims

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