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Switches EAO Series 84 HMI components

Another strong development in

switching applications is the combination of multiple technologies together with switch functionality. As switch manufacturers look to grow and expand their presence with customers, many have either acquired complementary technologies via acquisition or developed the capability in‐house. The combination of switching, power signal filtering and circuit protection can be found in various combinations from primarily non‐switch suppliers such as Schaffner, Schurter and TE Connectivity Corcom. In addition, circuit breaker suppliers Carling Technologies, E‐T‐A and Sensata Power Technologies provide circuit protection and switching in one device. These multi‐ function devices can save engineering time and provide a cost‐effective solution – all in a nice easy‐to‐use package. This provides an attractive option for many of our customers.

As switch suppliers work to increase

their value with customers, a few are providing more advanced manufactured assemblies such as control grips and panel assemblies. These are typically custom assemblies that are derived from either a customer drawing or by working closely with customers on the design aspect of the assembly. This type of complex work can provide a fully‐engineered solution from a single supplier and results in reduced labor costs and improved quality control and manufacturability. The challenge is making sure that the switch supplier can meet the requirements and expectations of the customer’s application. When most successful, the switch manufacturer will have better capability to complete these assemblies in a timely and cost effective manner, while meeting the quality requirements needed. These assemblies are not for every switch manufacturer. For example, control grips can be used in demanding applications such as agriculture and construction vehicles. Some of these grip assemblies are also found in aerospace and defense applications, which require adherence to stringent quality standards. HMI assemblies are typically targeted to

medical, instrumentation and industrial applications, where rapid changes in technology can create challenges.

While switches are still a proven

technology, Sager Electronics also offers products that span associated technologies. Although switches have their place in multiple applications, Sager’s offering of sensors and encoders are being adopted by many customers for applications that require longer life, speed of response, digital interface, motion detection, equipment health monitoring and user condition.

The supplier

landscape for switches has remained relatively constant. The consolidation of the electronic component industry over the past fifteen years has affected very few switch manufacturers. As mentioned above, a few switch suppliers have added to their technology portfolio to strengthen their value‐added capability. For the most part, design

engineers still have a broad range of switch solutions to select from a group of well‐known and experienced manufacturers of high‐quality switches. At Sager Electronics, our switch suppliers are among the best, with the industry’s top ten switch manufacturers leading our line‐ up. Sager’s supplier base includes

C&K Components, Carling Technologies, Cherry Electrical/ZF, EAO, Grayhill, Honeywell Sensing & Control, IDEC Corporation, ITW Switches, Omron Electronic Components, OTTO, Saia‐ Burgess, Schneider, and TE Connectivity.

Smarter, Easier, Faster · TFT Displays 3.2“ to 7“

· Built-in Intelligence · FLASH memory inside · Touch Panel Options · 5V / 3.3V

· SPI, I²C, RS-232



July/August 2014 25

new display design

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