Learn more about Keystone’s complete line of Thru-Hole and Surface Mountable Test Points designed to meet the interconnect and testing challenges for electronic and electrical circuit board production testing and troubleshooting.

Learn more about Keystone's diverse selection of Battery Holders, Retainers and Contacts to support Coin Cell batteries including diameters from 4.8mm to 30mm.

Keystone's battery holders for Cylindrical battery cells like A, AA, AAA, 1/2AA, CR2, 1/3N, C, D, 18650,18350, 20700, 21700, 26650 batteries. Holders come in thru-hole and surface mount for PCB use as well as wire leads for diverse applications.

Keystone's battery holders for Cylindrical battery cells like A, AA, AAA, 1/2AA, CR2, 1/3N, C, D, 18650,18350, 20700, 21700, 26650 batteries. Holders come in thru-hole and surface mount for PCB use as well as wire leads for diverse applications.

启信电子公司（Keystone Electronics）开发的彩色编码表面贴装测试点非常适合于自动装配系统。

Color-coded surface-mountable test points, developed by Keystone Electronics, are well suited for automatic assembly systems.

20 mm coin cell battery retainers from Keystone are designed with leading edge technology in mind to accommodate all major manufacturers' 20 mm batteries.

A view inside the walls of Keystone Electronics, a global leader in design and manufacturing capabilities.

The 1074 Vibra-Fit holder from Keystone features a UL 94V-0 rated housing and tin-plated brass contacts providing low contact resistant and simplified through-hole mounting on PCBs.

Keystone Electronics' quick-fit male tab terminals are specifically designed on a continuous reel (strip) to be compatible with standard automated insertion equipment, reducing assembly and processing time.

Keystone's popular plastic battery holders now include products with a PCB connector plug pre-installed to the end of 6" wires for simplified installations.

Keystone's new knobs have a soft touch gripping surface and colored pointer/center hub for simplified identification on panels and equipment.

Keystone's UL listed i-Clamp will pierce the insulation and make a reliable contact in one step. Electrical contact is no longer dependent on the expertise of the wiring installer.

Keystone's series of threaded standoffs are specifically formulated using a high-performance nylon blend for use in harsh temperature applications.

The high-current true zero-ohm jumpers from Keystone are quickly and easily set-up and uniquely suited as true zero-ohm resistor replacements.

A broad selection of Keystone's popular plastic battery holders now include products with a PCB connector plug pre-installed to the end of 6" wires for simplified installations.

"Key-Pad" dome switches from Keystone feature a 4-legged shape that allows them to be durable and reliable while maintaining an exceptional tactile feel.

The 5027 test point from Keystone has surface-mount and through-hole mounting options for precise placement on a PCB.

Keystone’s SMT and THM battery holders securely assure polarity for AA and AAA battery cell applications.

Keystone Electronics introduces SMT threaded standoffs for automated installations and fast assembly.