KSC421V30ACT2.95 Equivalent & Substitute Parts

Part Overview

The KSC421V30ACT2.95 is a tactile switch with SPST-NO circuit configuration, rated for 0.05A at 32VDC. This surface mount, right-angle actuated switch features side actuation with a 2.95mm actuator length and IP67 ingress protection. The main part is currently obsolete, making substitute identification essential for ongoing production and maintenance applications requiring equivalent electrical and mechanical performance.

Substiute Parts

Key Parameters

Parameter Value
Circuit Configuration SPST-NO
Contact Rating 0.05A @ 32VDC
Mounting Type Surface Mount, Right Angle
Actuator Length (Right Angle) 2.95mm
Actuator Orientation Side Actuated
Outline Dimensions 7.40mm x 3.80mm
Operating Force 170gf
Ingress Protection IP67 - Dust Tight, Waterproof
Operating Temperature Range -40°C ~ 85°C
Switch Travel 0.375mm
Mechanical Life 300,000 Cycles
Termination Style SMD (SMT) Tab

Substitute Part Grouping Explanation

Substitution for the KSC421V30ACT2.95 is determined by strict equivalence across the following critical parameters:

  • Electrical Performance: SPST-NO circuit with 0.05A @ 32VDC contact rating
  • Mechanical Interface: Surface mount, right-angle configuration with side actuation
  • Physical Dimensions: 2.95mm actuator length and 7.40mm x 3.80mm outline
  • Operational Characteristics: 170gf operating force, 0.375mm switch travel, 300,000 cycle mechanical life
  • Environmental Protection: IP67 ingress protection rating
  • Temperature Range: -40°C ~ 85°C operating window
  • Termination: SMD (SMT) Tab connection method

The KSC421 V30 ACT2.95 LFS meets all these criteria and qualifies as a direct substitute.

Parameter Comparison

Parameter KSC421V30ACT2.95 KSC421 V30 ACT2.95 LFS
Manufacturer C&K C&K
Series KSC KSC
Circuit Configuration SPST-NO SPST-NO
Switch Function Off-Mom Off-Mom
Contact Rating @ Voltage 0.05A @ 32VDC 0.05A @ 32VDC
Actuator Type Standard Standard
Mounting Type Surface Mount, Right Angle Surface Mount, Right Angle
Actuator Length, Right Angle 2.95mm 2.95mm
Actuator Orientation Side Actuated Side Actuated
Termination Style SMD (SMT) Tab SMD (SMT) Tab
Outline 7.40mm x 3.80mm 7.40mm x 3.80mm
Illumination Non-Illuminated Non-Illuminated
Operating Force 170gf 170gf
Ingress Protection IP67 - Dust Tight, Waterproof IP67 - Dust Tight, Waterproof
Operating Temperature -40°C ~ 85°C -40°C ~ 85°C
Switch Travel 0.375mm 0.375mm
Mechanical Life 300,000 Cycles 300,000 Cycles
Moisture Sensitivity Level (MSL) 1 (Unlimited) 1 (Unlimited)
REACH Status REACH Unaffected REACH Unaffected
ECCN EAR99 EAR99
HTSUS 8536.50.9031 8536.50.9031
Product Status Obsolete Active
RoHS Status RoHS non-compliant ROHS3 Compliant

Engineering Selection Recommendations

The KSC421 V30 ACT2.95 LFS is the appropriate substitute for the obsolete KSC421V30ACT2.95. Both parts maintain identical electrical and mechanical specifications across all critical parameters. The substitute part offers the additional advantage of active product status and ROHS3 compliance, eliminating regulatory constraints associated with the original non-compliant part. Inventory availability is substantially higher for the substitute (33,449 units versus 1,102 units), supporting long-term supply chain continuity.

Frequently Asked Questions (FAQ)

Q: What makes KSC421 V30 ACT2.95 LFS a valid substitute for KSC421V30ACT2.95?

A: Both parts share identical electrical ratings (0.05A @ 32VDC, SPST-NO), mechanical configuration (surface mount, right-angle, side-actuated), physical dimensions (2.95mm actuator length, 7.40mm x 3.80mm outline), and operational characteristics (170gf operating force, 0.375mm travel, 300,000 cycle life, IP67 protection, -40°C ~ 85°C temperature range).

Q: Are there packaging differences between these parts?

A: The original part (KSC421V30ACT2.95) is listed with unspecified packaging, while the substitute (KSC421 V30 ACT2.95 LFS) is supplied in bulk packaging. Both use identical SMD (SMT) Tab termination.

Q: What is the significance of the RoHS compliance difference?

A: The original part is RoHS non-compliant, while the substitute is ROHS3 compliant. For applications subject to RoHS regulations, the substitute part satisfies compliance requirements.

Q: Can these parts be used interchangeably in existing designs?

A: Yes. Identical mounting type, actuator configuration, electrical ratings, and physical dimensions ensure direct interchangeability without design modification.

Q: What is the MSL rating for both parts?

A: Both parts carry MSL 1 (Unlimited), indicating no moisture sensitivity constraints during storage or handling.

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