Product Information

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Jul 8, 2014

[Product Information]

Industry-Thinnest Product Height When Installed

Alps Electric Develops and Commences Mass Production of “SCHA9B Series” microSD™ Memory Card Connector (PCB Cut-off Type)

Alps Electric Develops and Commences Mass Production of “SCHA9B Series” microSD™ Memory Card Connector (PCB Cut-off Type) Enlarged Photo


TOKYO- July 8, 2014 -Alps Electric has developed and added to its product lineup the “SCHA9B Series” microSD™ Memory Card Connector (PCB Cut-off Type), ideal for products including tablets, other mobile devices and digital cameras.

Mobile devices like tablets and smartphones bring comfort and convenience to our lives. Besides their increasing functionality, these devices are constantly being made thinner to improve portability, demanding size and thickness reductions of the components inside them, too.

Even as devices become thinner, they have to be able to handle larger volumes of data to support features like high-resolution photography and downloading of music and video. Many devices employ microSD™ cards or other memory cards to store this data. As well as allowing easy card insertion, connectors forming the link between memory cards and devices need to assist downsizing.

Alps Electric has responded to these market needs by developing the SCHA9B Series microSD™ Memory Card Connector (PCB Cut-off Type). Mass production is already underway. The SCHA9B Series is the industry’s thinnest with a product height when installed of 0.69mm above the PCB, realized through a continuation of thickness reductions achieved with earlier models and use of a PCB cut-off format, whereby the connector is mounted into a cut-out in the board.

The product’s structure was optimized through application of original simulation technology acquired by Alps Electric to date. Enclosing the top and bottom of the connector within a metal frame realizes both the thinnest installed height for a PCB cut-off type and a structure resilient to scooping.* Precision processing and thin film insert molding technologies were used to ensure high quality in mass production.

For sensing card insertion, the connector contains a detector switch with a sliding contact structure resilient to foreign matter, achieving high reliability.

Prying a card out by wiggling it in directions other than the direction of card insertion and removal

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microSD™ memory card connector realizing an industry-thinnest installed height

  1. The industry’s thinnest product height when installed of 0.69mm
  2. A structure resilient to scooping with the top and bottom of the connector covered with a metal frame
  3. Use of a detector switch with a sliding contact structure ensures excellent card insertion sensing

Principal Applications

Tablets, smartphones and other mobile devices

Digital cameras and camcorders

Planned Release

Mass production From July 2014
Sample price ¥450 (incl. tax)
Monthly output 3.1 million units
Development Furukawa Plant, Engineering Headquarters
(Osaki, Miyagi Prefecture)
Production Wuxi Alps Electronics Co., Ltd.
(Wuxi, Jiangsu, P.R. of China)



Model SCHA9B Series
Dimensions (W x D)
Product height
14.97 mm x 15.37 mm
Installed height: 0.69mm
Mount system Standard mount (PCB cut-off type)
Card eject stroke 3.2mm
Media eject method Push-push
Rating (per pin) 3.6V/0.5A
Initial contact resistance 100 mΩ max.
No. of insertion-removal cycles 10,000 cycles

About Alps Electric Co., Ltd.

 Alps Electric (Tokyo: 6770) is a leading global manufacturer of high-quality electronic components for mobile devices, home electronics, vehicles and industrial equipment. With the philosophy of “Perfecting the Art of Electronics” Alps Electric supplies over 40,000 different components to about 2,000 companies all over the world. For more information, visit