
Johnstech High Performance Contactors (Test Socket)
Johnstech offers test contactors (test socket) with the highest electrical and mechanical performance on the market, ensuring global semiconductor manufactures and test houses the most stable and reliable contactors that deliver the most accurate and reliable tests for a wide range of applications.
Johnstech is your contact for high performance device testing, delivering the accuracy that characterization deserves and the reliability that production demands, test after test.
For QFN, DFN, and other Pad-Style Applications
For High Speed Digital, RF, and Precision Analog Applications
Exceptional Electrical Performance.
The very short electrical contact length of the Verticon™ 100 BGA contactor, makes it very well suited for high frequency wireless and microwave applications as well as high-speed digital interfaces. The combined contact profile design and proprietary plating enable low and stable contact resistance measurements. This makes the Verticon™ 100 BGA well suited for precision low noise DC measurements.
For QFN, DFN, and other Pad-Style Applications
The Johnstech Pad ROL™ 200K Series configurable Contactor is the ultimate high performance engineering and production Kelvin solution. Ideal for high power and precision analog devices that require very tight test guard-bands, this Kelvin solution delivers unprecedented mechanical and electrical performance, flexibility and value.

For QFN, DFN, and other Pad-Style Applications
Johnstech patented ROL™Technology provides excellent electrical performance and proven mechanical reliability for applications including Precision Analog and RF. The ROL™ 200 Series provides Contact/Elastomer configurations for unique challenges of matt tin and NiPdAu packages. T he Pad ROL 200 delivers unprecedented mechanical and electrical performance, flexibility and value.

For QFN, DFN, and other Pad-Style Applications
The New Pad ROL™ 100A offers the best-in-class electrical performance engineering/characterization testing for your most demanding RF/Microwave communications devices >40 GHz. Whether you’re testing high gain RF amplifiers , RF transceivers or the latest WiMax or 3G devices, the Pad ROL™ 100A delivers unprecedented mechanical and electrical performance, flexibility and value.

For QFP, SO, SOT, and Other Leaded-Style Applications
The Johnstech Leaded ROL™ 200K Series configurable Contractor is the ultimate high performance engineering and production Kelvin solution. Ideal for high power and precision analog devices that require very tight test guard-bands, this Kelvin solution delivers unprecedented mechanical and electrical performance, flexibility and value.

For QFP, SO, SOIC, SOJ, PLCC, TSOP and SOT Applications
Johnstech’s patented ROL™ Technology provides excellent electrical performance and proven mechanical reliability on Leaded Devices. The Leaded ROL™ 200 utilizes two contact configurations that were developed specifically for the unique challenges and different device plating’s used in Lead-Free Testing.

For SDRAM, DDR3, FB-DIMM and Edge Card Applications
Johnstech’s patent Edge Technology has been enchanced to meet the testing challenges of today’s low voltage (1.8v & 1.5v), high-speed memory modules.The catalog of Edge 400a standard reference designs, developed to JEDEC and Handler interface specifications, has been added into the SelecTest® Program for faster quoting and lead/delivery times.

