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GRM0225C1E1R1WA03 Datasheet(PDF) 21 Page - Murata Manufacturing Co., Ltd. |
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GRM0225C1E1R1WA03 Datasheet(HTML) 21 Page - Murata Manufacturing Co., Ltd. |
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21 / 30 page  (1) Example of a suitable jig [In the case of Single-side Mounting] An outline of the board separation jig is shown as follows. Recommended example: Stress on the component mounting position can be minimized by holding the portion close to the jig, and bend in the direction towards the side where the capacitors are mounted. Not recommended example: The risk of cracks occurring in the capacitors increases due to large stress being applied to the component mounting position, if the portion away from the jig is held and bent in the direction opposite the side where the capacitors are mounted. [Outline of jig] [Hand Separation] [In the case of Double-sided Mounting] Since components are mounted on both sides of the board, the risk of cracks occurring can not be avoided with the above method. Therefore, implement the following measures to prevent stress from being applied to the components. (Measures) (1) Consider introducing a router type separator. If it is difficult to introduce a router type separator, implement the following measures. (Refer to item 1. Mounting Position) (2) Mount the components parallel to the board separation surface. (3) When mounting components near the board separation point, add slits in the separation position near the component. (4) Keep the mounting position of the components away from the board separation point. (2) Example of a Disc Separator An outline of a disc separator is shown as follows. As shown in the Principle of Operation, the top blade and bottom blade are aligned with the V-grooves on the printed circuit board to separate the board. In the following case, board deflection stress will be applied and cause cracks in the capacitors. (1) When the adjustment of the top and bottom blades are misaligned, such as deviating in the top-bottom, left-right or front-rear directions (2) The angle of the V groove is too low, depth of the V groove is too shallow, or the V groove is misaligned top-bottom IF V groove is too deep, it is possible to brake when you handle and carry it. Carefully design depth of the V groove with consideration about strength of material of the printed circuit board. [ Outline of Machine ] [ Principle of Operation ] [ Cross-section Diagram ] [Disc Separator] Top Blade Top Blade Top Blade Top Blade Bottom Blade Bottom Blade Bottom Blade Bottom Blade [V-groove Design] Depth too Shallow Depth too Deep Example of Recommended V-groove Design Not Recommended Left-right Misalignment Low-Angle Recommended Top-bottom Misalignment Left-right Misalignment Front-rear Misalignment Caution Recommended Not recommended Not recommended Printed Circuit Board Top Blade V-groove Bottom Blade Top Blade Printed Circuit Board V-groove ! Board Cropping Jig V-groove Printed Circuit Board Printed circuit board Components Load point Direction of load Printed circuit board Component s Load point Direction of load JEMCGC-2701X 21 |
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