MJTP1138FTR is an ultra-compact 6mm surface-mount momentary tactile pushbutton switch designed for high-reliability applications requiring excellent tactile feedback. The switch features a snap dome mechanism with single pole-single throw (SPST) momentary configuration, molded-in terminals to minimize flux wicking, and a case constructed from high-temperature nylon with silver-plated brass terminals and phosphor bronze or stainless steel shorting contacts. Electrical specifications include a contact rating of 50 mA at 12 VDC, contact resistance of 100 milliohms maximum at 5 VDC with 10 mA, insulation resistance of 100 megohms minimum at 100 VDC, and an electrical life of 100,000 cycles minimum. The switch operates over a temperature range of -20°C to +70°C with an actuation force of 160 grams ±30 grams and plunger travel of 0.25 mm +0.2/-0.1 mm, making it ideal for consumer electronics, industrial control panels, and portable devices where compact size and reliable tactile feedback are essential.