LS12P2E-T Equivalent & Substitute Parts

Part Overview

The LS12P2E-T is a tactile switch manufactured by Citizen, classified as SPST-NO (Single Pole Single Throw - Normally Open) with a contact rating of 0.02A at 12VDC. This component features side actuation, surface mount right-angle configuration, and is designed for applications requiring momentary switching functionality. The product is currently obsolete, making identification of equivalent substitute parts essential for ongoing design support, maintenance, and production continuity.

Substiute Parts

LS12P2E-T

CitizenIn Stock: 1610LS12P2E-T Datasheet

Current PartRFQ

EVQ-P42B3M

Panasonic Electronic ComponentsIn Stock: 30016EVQ-P42B3M Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the LS12P2E-T is determined by the following critical parameters:

Primary Compatibility Criteria:

• Circuit configuration must be SPST-NO
• Switch function must be Off-Mom (momentary operation)
• Actuator type must be rectangular button with side actuation
• Termination style must be SMD (SMT) Tab
• Mounting configuration must support right-angle surface mount orientation

Secondary Compatibility Criteria:

• Contact rating voltage must equal or exceed 12VDC
• Contact rating current must equal or exceed 0.02A
• Operating force tolerance: 160gf ±acceptable range
• Switch travel must accommodate 0.20mm or greater
• Mechanical life must support application cycle requirements
• RoHS and MSL compliance must be maintained

The EVQ-P42B3M from Panasonic Electronic Components satisfies all primary criteria and exceeds secondary criteria specifications, establishing it as a valid substitute for the obsolete LS12P2E-T.

Parameter Comparison

Engineering Selection Recommendations

For Direct Substitution:

The EVQ-P42B3M is qualified as a direct substitute for the LS12P2E-T based on the following engineering factors:

1. Functional Equivalence: Both components share identical circuit configuration (SPST-NO), switch function (Off-Mom), and actuator specifications (rectangular button, side actuated, 160gf operating force).

2. Electrical Compatibility: The EVQ-P42B3M contact rating of 0.02A @ 15VDC exceeds the LS12P2E-T requirement of 0.02A @ 12VDC, ensuring safe operation in the original application circuit.

3. Mechanical Compatibility: Both components feature SMD (SMT) Tab termination and right-angle mounting configurations suitable for surface mount PCB assembly. The EVQ-P42B3M switch travel of 0.25mm exceeds the LS12P2E-T specification of 0.20mm.

4. Reliability Enhancement: The EVQ-P42B3M provides 1,000,000 mechanical life cycles compared to the LS12P2E-T specification of 100,000 cycles, representing a tenfold improvement in component longevity.

5. Regulatory Compliance: Both components maintain RoHS compliance and MSL Level 1 (Unlimited) moisture sensitivity rating. The EVQ-P42B3M carries ROHS3 certification, meeting current regulatory standards.

6. Supply Continuity: The EVQ-P42B3M is actively manufactured by Panasonic Electronic Components with substantial inventory availability (29,984 pcs), ensuring long-term supply security for production and maintenance applications.

Frequently Asked Questions (FAQ)

Q: Can the EVQ-P42B3M be used as a direct replacement for the LS12P2E-T without PCB redesign?

A: Yes. Both components feature identical circuit configuration (SPST-NO), momentary switch function, rectangular button actuator with side actuation, and SMD (SMT) Tab termination. The right-angle mounting configuration is compatible between both parts. Physical outline dimensions differ slightly (LS12P2E-T: 5.35mm x 2.85mm; EVQ-P42B3M: 6.20mm x 2.55mm), requiring verification of available PCB footprint space.

Q: What is the voltage compatibility between these two switches?

A: The LS12P2E-T is rated for 0.02A @ 12VDC. The EVQ-P42B3M is rated for 0.02A @ 15VDC. The substitute component exceeds the original voltage specification, making it suitable for the original 12VDC application with additional voltage margin.

Q: Are there differences in mechanical performance?

A: Both components feature identical operating force (160gf) and actuator type (rectangular button). The EVQ-P42B3M provides greater switch travel (0.25mm vs. 0.20mm) and significantly higher mechanical life (1,000,000 cycles vs. 100,000 cycles), representing performance improvements over the original component.

Q: What packaging format is the EVQ-P42B3M supplied in?

A: The EVQ-P42B3M is supplied in Tape & Reel (TR) packaging format, standard for high-volume SMD component distribution. The LS12P2E-T packaging format was not specified in available documentation.

Q: Are both components RoHS compliant?

A: Yes. The LS12P2E-T carries RoHS Compliant certification. The EVQ-P42B3M carries ROHS3 Compliant certification, representing current regulatory standards. Both components maintain MSL Level 1 (Unlimited) moisture sensitivity rating.

Q: What is the operating temperature range for these components?

A: The LS12P2E-T operating temperature range was not specified in available documentation. The EVQ-P42B3M operates across -40°C to 85°C, providing a defined thermal operating envelope for the substitute component.

Q: Is the EVQ-P42B3M actively manufactured?

A: Yes. The EVQ-P42B3M is classified as Active product status and is manufactured by Panasonic Electronic Components. The LS12P2E-T is classified as Obsolete, making the EVQ-P42B3M the recommended solution for ongoing supply requirements.