What should engineers review before using TP71921?

Review the four solder-foot layout, 4.8 mm × 3.8 mm × 5.5 mm body dimensions, 4.20 mm travel, and 16 V DC rating. Confirm the footprint from the mechanical drawing.

What is the pinout of TP71921?

Use the TP71921 datasheet for the official pinout diagram and pin names. In PartGenie, ask Datasheet AI about TP71921 pinout to locate pins, power rails, and interface signals before layout.

TP71921 Datasheet, Specs, Alternatives & ECAD | ROCPU Switches(台普)

AI summary

TP71921 is a normally open, vertical-mount tactile travel switch with a compact 4.8 mm × 3.8 mm × 5.5 mm body.

Best for

Compact user-interface controls
Mechanical position detection

Avoid if

A sealed or qualified switch is required
The application exceeds the stated 16 V DC rating

Check before use

PCB footprint and solder-land geometry
Operating force and actuator clearance
Required compliance and lifecycle documentation

Key specifications

Configuration: Normally open
Mounting: Vertical mount
Rated voltage: 16 V DC
Body dimensions: 4.8 mm × 3.8 mm × 5.5 mm
Operating force: 20 g ±5 g

Application

User-interface controlsPosition detection

Alternative components

Alternatives are being enriched. Analyze this part in PartGenie for the latest matches.

Design and risk insights

Questions & answers

TP71921 is a ROCPU normally open tactile travel switch intended for vertical mounting and soldered PCB assembly.