LP1S-27S-K-Z Equivalent & Substitute Parts

Part Overview

The LP1S-27S-K-Z is a pushbutton switch manufactured by Nidec Components Corporation, configured as a DPDT (Double Pole Double Throw) standard through-hole component with On-On switching function. This part is rated for 3A at 125V AC and 30V DC, featuring a black square button actuator with PC pin termination.

The LP1S-27S-K-Z carries an Obsolete product status. Locating equivalent or substitute components is necessary to maintain design continuity, ensure supply chain reliability, and support ongoing production or repair requirements for systems utilizing this switch configuration.

Substiute Parts

LP1S-27S-K-Z

Nidec Components CorporationIn Stock: 830LP1S-27S-K-Z Datasheet

Current PartRFQ

UB26SKW03N-A

NKK SwitchesIn Stock: 1108UB26SKW03N-A Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the LP1S-27S-K-Z is determined by the following critical parameters:

• Circuit Configuration: Must be DPDT to maintain electrical functionality
• Switch Function: Must be On-On to preserve operational behavior
• Voltage Rating - AC: Must meet or exceed 125V AC requirement
• Voltage Rating - DC: Must meet or exceed 30V DC requirement
• Mounting Type: Must be Through Hole for PCB compatibility
• Actuator Type: Must be Square, Button for mechanical fit
• Termination Style: Must be PC Pin for connection compatibility

The UB26SKW03N-A from NKK Switches satisfies all critical substitution criteria. While this substitute exhibits higher current rating (5A versus 3A), extended operating temperature range (-20°C to 70°C versus -15°C to 60°C), and superior mechanical life (200,000 cycles versus unspecified), these enhancements do not compromise compatibility and provide additional design margin.

Parameter Comparison

Engineering Selection Recommendations

The UB26SKW03N-A is a direct functional substitute for the obsolete LP1S-27S-K-Z. Both components meet identical voltage and switching requirements, share identical circuit topology (DPDT On-On), and employ compatible through-hole PC pin termination.

The UB26SKW03N-A carries Active product status, ensuring ongoing availability and supply chain support. Both components maintain ROHS3 compliance and MSL Level 1 rating, satisfying environmental and moisture sensitivity requirements.

The higher current rating of the UB26SKW03N-A (5A versus 3A) provides additional design margin without introducing incompatibility. The extended operating temperature range (-20°C to 70°C) accommodates broader environmental conditions than the original specification.

Frequently Asked Questions (FAQ)

Q: Can the UB26SKW03N-A directly replace the LP1S-27S-K-Z in existing designs?

A: Yes. Both components share identical DPDT On-On circuit configuration, 125V AC / 30V DC voltage ratings, through-hole mounting, square button actuator type, and PC pin termination. No circuit modifications are required.

Q: Does the higher current rating of the UB26SKW03N-A (5A) affect compatibility?

A: No. Higher current rating indicates enhanced capability and does not compromise compatibility with circuits designed for 3A operation. The substitute operates safely within the original design parameters.

Q: Are there mechanical fit considerations when substituting these components?

A: Both components feature identical actuator type (square button) and through-hole PC pin termination. Mechanical fit is compatible. Panel cutout dimensions should be verified against PCB layout documentation.

Q: What is the significance of the Active product status for the UB26SKW03N-A?

A: Active status indicates the UB26SKW03N-A is currently manufactured and supported by NKK Switches, ensuring long-term availability and supply chain continuity compared to the Obsolete LP1S-27S-K-Z.

Q: Do both components meet the same compliance standards?

A: Yes. Both the LP1S-27S-K-Z and UB26SKW03N-A are ROHS3 compliant and carry MSL Level 1 (Unlimited) moisture sensitivity rating, meeting identical environmental and regulatory requirements.