KSA0M312 Tactile Switch SPST-NO Equivalent & Substitute Parts

Part Overview

The KSA0M312 is a tactile switch manufactured by C&K, classified as SPST-NO (Single Pole Single Throw - Normally Open) with a contact rating of 0.05A at 32VDC. This through-hole mounted switch features top actuation, IP65 ingress protection, and is designed for applications requiring momentary contact switching with 1,000,000 cycle mechanical life.

The KSA0M312 carries an obsolete product status. Identifying equivalent substitute parts ensures design continuity and supply chain reliability for applications currently using this component.

Substiute Parts

KSA0M312

C&KIn Stock: 1056KSA0M312 Datasheet

Current PartRFQ

KSA0M312LFT

C&KIn Stock: 1926KSA0M312LFT Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the KSA0M312 is determined by strict equivalence across electrical and mechanical parameters. The following criteria establish direct substitutability:

• Circuit configuration must remain SPST-NO
• Contact rating must match 0.05A @ 32VDC
• Switch function must be Off-Mom (momentary operation)
• Mounting type must be Through Hole
• Actuator orientation must be Top Actuated
• Physical dimensions (outline and actuator height) must be identical
• Operating force, switch travel, and mechanical life must match
• Ingress protection rating must be IP65
• Operating temperature range must encompass -40°C ~ 85°C
• Termination style must be PC Pin
• Series must be KSA MKII

Only parts meeting all these criteria are considered direct electrical and mechanical equivalents.

Parameter Comparison

Engineering Selection Recommendations

The KSA0M312LFT is a direct electrical and mechanical equivalent to the obsolete KSA0M312. Both parts are manufactured by C&K within the KSA MKII series and share identical functional specifications across all critical parameters: circuit configuration, contact rating, switch function, mounting type, actuator geometry, operating force, switch travel, ingress protection, operating temperature range, mechanical life, and termination style.

The primary distinction between these parts is product status and regulatory compliance. The KSA0M312 is obsolete and RoHS non-compliant, while the KSA0M312LFT is active and ROHS3 compliant. For new designs or ongoing production requiring regulatory compliance with current environmental standards, the KSA0M312LFT is the appropriate selection. For legacy system maintenance where the original part specification must be preserved, the KSA0M312LFT provides functional and mechanical interchangeability.

Frequently Asked Questions (FAQ)

Q: Can KSA0M312LFT be used as a direct replacement for KSA0M312 in existing designs?

A: Yes. The KSA0M312LFT is electrically and mechanically equivalent to the KSA0M312. All functional parameters, physical dimensions, and performance characteristics are identical. The parts are interchangeable at the circuit level and PCB layout level.

Q: What is the difference between KSA0M312 and KSA0M312LFT?

A: The primary differences are product status and regulatory compliance. The KSA0M312 is obsolete and RoHS non-compliant. The KSA0M312LFT is an active product that meets ROHS3 compliance requirements. All electrical and mechanical specifications are identical.

Q: Why is the KSA0M312 listed as obsolete?

A: The KSA0M312 has been superseded by the KSA0M312LFT within the manufacturer's product line. The KSA0M312LFT provides the same functionality with updated regulatory compliance status.

Q: Are there packaging differences between these parts?

A: The KSA0M312 is packaged in standard format, while the KSA0M312LFT is supplied in bulk packaging. Both packaging formats contain the same component with identical electrical and mechanical properties.

Q: What certifications apply to both parts?

A: Both parts share identical REACH status (REACH Unaffected), ECCN classification (EAR99), and HTSUS code (8536.50.9031). The KSA0M312LFT additionally meets ROHS3 compliance requirements.

Q: Can these parts be used in applications requiring RoHS compliance?

A: Only the KSA0M312LFT meets RoHS compliance requirements. The KSA0M312 is RoHS non-compliant and should not be used in applications with mandatory RoHS compliance specifications.