Product Introduction

PTS645VL31-2LFS is a Single-Pole Single-Throw Normally Open (SPST-NO) momentary tact switch with standard 6×6mm compact package and through-hole mounting type. It is a core model of high-performance tactile switches in PTS645V series. Developed by C&K, the high-end switch brand under LITTELFUSE of the United States, it follows strict quality control standards. It balances cost performance for consumer electronics and stability for industrial equipment, and is featured with precise actuation, stable conduction, ultra-long durability and wide temperature adaptability. Widely used for key control in consumer electronics, industrial control, instrumentation and intelligent terminals, it provides highly reliable and cost-effective human-machine interaction control solutions for various electronic devices and helps end products achieve miniaturization, durability and stability upgrade. Users can obtain samples and check real-time inventory of PTS645VL31-2LFS via SMCC, an authorized LITTELFUSE distributor, to ensure stable supply during R&D and mass production.

Product Features

• Miniaturized Design: 6×6mm compact structure, saves PCB space for slim devices.

• Precise Tactile Feedback: 1.3N actuation force, clear feel without false triggering.

• High-Reliability Performance: Silver contacts, low contact resistance and anti-oxidation.

• Long Lifespan: 100,000 mechanical & electrical cycles.

• Wide Temperature: -40°C ~ +85°C for complex environments.

• Eco-Friendly: RoHS compliant, lead-free and halogen-free.

• Dust Protection: IP40 rating prevents dust ingress and contact failure.

Technical Specifications

Application Fields

Consumer Electronics

PTS645VL31-2LFS is used for function keys, reset keys of portable home appliances, wearables, remote controls and Bluetooth audio devices. Small size, comfortable feel and long lifespan meet daily use requirements effectively.

Industrial Control

It serves as operation keys and reset switches for industrial panels and control modules. IP40 dustproof and wide temperature range adapt to dusty and temperature-fluctuating industrial sites, reducing equipment failure rate.

Instrumentation & Meters

Silver contacts ensure stable signal transmission for testing and measuring devices. Momentary actuation fits parameter adjustment and reset operations, suitable for laboratory and outdoor testing equipment.

Supply Chain Service

PTS645VL31-2LFS is a universal 6×6mm industrial tact switch with mini size, stable performance and long life. It solves common defects of traditional keys and improves end product reliability. As an authorized LITTELFUSE distributor, SMCC provides stable inventory and professional technical support.

For more information, please visit the official LITTELFUSE website or contact SMCC for PTS645VL31-2LFS.