MEC Switches 4ASH942 Equivalent & Substitute Parts

Part Overview

The 4ASH942 is an illuminated tactile switch from MEC Switches' Multimec® 4 series, designed for surface mount applications requiring SPST-NO (Single Pole Single Throw - Normally Open) switching functionality. This component operates at 0.05A @ 24VDC with top-actuated plunger design and integrated yellow LED illumination. The part is currently active in production with 1,022 units in stock.

Substitute parts become necessary when addressing specific application requirements such as extended operating temperature ranges, modified actuator heights, or alternative packaging formats while maintaining core electrical and mechanical compatibility.

Substiute Parts

4ASH942

MEC SwitchesIn Stock: 10924ASH942 Datasheet

Current PartRFQ

5GSH93542

MEC SwitchesIn Stock: 57445GSH93542 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

The 5GSH93542 qualifies as a direct substitute for the 4ASH942 based on the following alignment of critical parameters:

Electrical Compatibility:

• Identical circuit configuration (SPST-NO)
• Identical contact rating (0.05A @ 24VDC)
• Identical illumination specification (LED, Yellow @ 2VDC)

Mechanical Compatibility:

• Identical mounting type (Surface Mount)
• Identical actuator type (Plunger for Cap)
• Identical actuator orientation (Top Actuated)
• Identical outline dimensions (10.10mm x 10.10mm)
• Identical termination style (Gull Wing)
• Identical switch travel (1.00mm)
• Identical mechanical life rating (10,000,000 Cycles)

Environmental & Compliance:

• Identical ingress protection rating (IP67)
• Identical RoHS status (ROHS3 Compliant)
• Identical moisture sensitivity level (MSL 1)
• Identical REACH status (REACH Unaffected)

Differentiating Parameters:

• Actuator height: 8.40mm (4ASH942) vs. 6.40mm (5GSH93542)
• Operating force: 300gf (4ASH942) vs. 350gf (5GSH93542)
• Operating temperature range: -30°C ~ 85°C (4ASH942) vs. -40°C ~ 160°C (5GSH93542)
• Series designation: Multimec® 4 vs. Multimec® 5
• Packaging: Unspecified (4ASH942) vs. Tube (5GSH93542)

Parameter Comparison

Engineering Selection Recommendations

Both the 4ASH942 and 5GSH93542 maintain active product status with full ROHS3 compliance and REACH unaffected designation, ensuring regulatory compliance for current and future applications.

Selection between these parts depends on application-specific requirements:

Select 4ASH942 when:

• Operating environment is constrained to -30°C ~ 85°C temperature range
• Actuator height of 8.40mm is required for mechanical clearance
• Lower operating force (300gf) is preferred for user interface feel
• Original Multimec® 4 series specification is mandated

Select 5GSH93542 when:

• Extended temperature operation to -40°C or above 85°C is required
• Reduced actuator height of 6.40mm accommodates design constraints
• Higher operating force (350gf) is acceptable or preferred
• Multimec® 5 series specification is acceptable
• Tube packaging format is required for production workflow

Both parts share identical electrical ratings, mechanical life specifications, and environmental sealing characteristics, ensuring functional equivalence within their respective operating parameter boundaries.

Frequently Asked Questions (FAQ)

Q: Can 5GSH93542 be used as a direct replacement for 4ASH942 in existing designs?

A: Substitution is possible only if the application tolerates the parameter differences: reduced actuator height (6.40mm vs. 8.40mm), increased operating force (350gf vs. 300gf), and extended temperature capability (-40°C ~ 160°C vs. -30°C ~ 85°C). PCB layout and mechanical enclosure must accommodate the lower profile actuator.

Q: What are the key electrical differences between these parts?

A: There are no electrical differences. Both parts maintain identical SPST-NO circuit configuration, 0.05A @ 24VDC contact rating, and yellow LED illumination at 2VDC nominal voltage.

Q: How do the operating force specifications affect component selection?

A: Operating force determines tactile feedback and actuation effort. The 4ASH942 requires 300gf of force, while the 5GSH93542 requires 350gf. This difference may impact user interface feel and should be evaluated against application ergonomic requirements.

Q: Are there packaging considerations for these substitutes?

A: The 4ASH942 packaging format is unspecified in the provided data, while the 5GSH93542 is supplied in Tube packaging. Confirm packaging compatibility with your production assembly process and component handling requirements.

Q: Do both parts meet the same environmental sealing standards?

A: Yes. Both parts maintain IP67 ingress protection rating (dust tight, waterproof) and identical sealed flux protection features, ensuring equivalent environmental performance.

Q: What is the significance of the Multimec® 4 vs. Multimec® 5 series designation?

A: Series designation indicates product generation within MEC Switches' tactile switch portfolio. The Multimec® 5 represents a newer generation with enhanced temperature range capability. Both series maintain active production status and full compliance certifications.