APEM Inc. 305CQE Pushbutton Switch - Equivalent & Substitute Parts

Part Overview

The APEM Inc. 305CQE is a pushbutton switch with SPST-NO (Single Pole Single Throw - Normally Open) circuit configuration, rated for 1A at 125V AC and 28V DC. This component is classified as obsolete, making identification of suitable substitute parts essential for ongoing system maintenance and new design implementations. The 305CQE features a standard panel mount rear configuration with a round plunger actuator and PC pin termination, designed for applications requiring momentary contact switching with overtravel protection.

Substiute Parts

305CQE

APEM Inc.In Stock: 1118305CQE Datasheet

Current PartRFQ

301CQE

APEM Inc.In Stock: 741301CQE Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 305CQE is determined by strict equivalence across the following critical parameters:

• Circuit Configuration: SPST-NO topology must be maintained
• Current and Voltage Ratings: 1A (AC/DC), 125V AC, 28V DC
• Mounting Configuration: Panel Mount, Rear orientation with 6.35mm circular cutout
• Actuator Specification: Round plunger type with no marking
• Termination: PC Pin connection style
• Operating Environment: Temperature range -30°C to 85°C
• Electrical Performance: 250,000 cycle electrical life minimum
• Compliance: ROHS3 compliance required

The 301CQE from APEM Inc. meets all these substitution criteria and is classified as an active product, providing continuity for applications currently using the obsolete 305CQE.

Parameter Comparison

Engineering Selection Recommendations

The 301CQE is the direct functional equivalent for the obsolete 305CQE. Both components share identical electrical specifications, mechanical dimensions, and environmental ratings. The primary distinction is product status: the 305CQE is obsolete while the 301CQE maintains active production status.

For new designs or system replacements, the 301CQE is the appropriate selection. Both parts carry ROHS3 compliance and REACH unaffected status, ensuring regulatory alignment. The 301CQE's active product status provides supply chain continuity and manufacturer support, eliminating the constraints associated with obsolete component sourcing.

Frequently Asked Questions (FAQ)

Q: Can the 301CQE directly replace the 305CQE in existing applications?

A: Yes. The 301CQE is electrically and mechanically equivalent to the 305CQE across all specified parameters. Both components feature identical SPST-NO circuit configuration, 1A/125V AC/28V DC ratings, panel mount rear configuration with 6.35mm circular cutout, and PC pin termination. No circuit modifications or mechanical redesign is required.

Q: What is the primary advantage of using the 301CQE over the 305CQE?

A: The 301CQE maintains active product status, ensuring reliable supply chain availability and manufacturer technical support. The 305CQE is classified as obsolete, which may result in limited inventory and discontinued production.

Q: Are there packaging differences between these parts?

A: The 305CQE is supplied with dash packaging notation, while the 301CQE is supplied in bulk packaging. This distinction affects order quantities and handling but does not impact electrical or mechanical performance.

Q: Do both parts meet the same compliance standards?

A: Yes. Both the 305CQE and 301CQE are ROHS3 compliant and REACH unaffected, meeting current regulatory requirements for electronic component manufacturing and use.

Q: What is the electrical life specification for these switches?

A: Both components are rated for 250,000 electrical cycles, providing equivalent operational durability for momentary contact switching applications.