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

Part Overview

The APEM Inc. 305SZBE is a pushbutton switch with SPST-NO (Single Pole Single Throw - Normally Open) circuit configuration, rated for 0.4VA at 20V AC/DC. This component features a round plunger actuator with panel mount rear termination and solder lug connections. The 305SZBE is classified as obsolete, necessitating identification of active equivalent parts to maintain design continuity and ensure supply chain availability for new production and field replacements.

Substiute Parts

305SZBE

APEM Inc.In Stock: 1022305SZBE Datasheet

Current PartRFQ

301SZBE

APEM Inc.In Stock: 927301SZBE Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the obsolete 305SZBE is based on strict electrical and mechanical parameter matching within the APEM 300 series. The substitute part must maintain identical specifications across the following critical parameters:

• Circuit configuration: SPST-NO
• Current and voltage ratings: 0.4VA at 20V AC/DC
• Mounting configuration: Panel Mount, Rear
• Actuator geometry: Round, Plunger
• Termination method: Solder Lug
• Panel cutout dimensions: Circular 6.35mm diameter
• Operating temperature range: -30°C to 85°C
• Electrical life rating: 250,000 cycles
• Compliance certifications: ROHS3, REACH Unaffected

The 301SZBE qualifies as a direct substitute, sharing all electrical and mechanical parameters while offering active product status and bulk packaging availability.

Parameter Comparison

Engineering Selection Recommendations

The 301SZBE is the qualified substitute for the obsolete 305SZBE. Both components are manufactured by APEM Inc. within the 300 series and maintain identical electrical ratings, mechanical interfaces, and environmental specifications. The 301SZBE holds active product status, ensuring long-term supply chain availability and compliance with current regulatory requirements including ROHS3 and REACH standards. The primary distinction is packaging format: the 301SZBE is supplied in bulk packaging, whereas the 305SZBE was supplied in standard packaging. This packaging difference does not affect functional or mechanical compatibility. Selection of the 301SZBE eliminates obsolescence risk while maintaining full design compatibility with existing circuit implementations.

Frequently Asked Questions (FAQ)

Q: Can the 301SZBE be used as a direct replacement for the 305SZBE in existing designs?

A: Yes. The 301SZBE is electrically and mechanically identical to the 305SZBE. All electrical ratings, mounting dimensions, termination methods, and environmental specifications are equivalent. The components are interchangeable without circuit modification.

Q: What is the difference between the 305SZBE and 301SZBE?

A: The primary difference is product status and packaging. The 305SZBE is obsolete and was supplied in standard packaging. The 301SZBE is an active product supplied in bulk packaging. All functional and mechanical parameters are identical.

Q: Are there any compatibility concerns with panel cutout dimensions?

A: No. Both the 305SZBE and 301SZBE require a circular panel cutout of 6.35mm diameter. Panel mounting interfaces are identical, and no mechanical modifications are required for substitution.

Q: Do both parts meet the same compliance standards?

A: Yes. Both the 305SZBE and 301SZBE are ROHS3 compliant and REACH unaffected. Both carry EAR99 export classification and meet identical regulatory requirements.

Q: What is the electrical life expectancy for the 301SZBE?

A: The 301SZBE is rated for 250,000 electrical cycles, identical to the 305SZBE specification.

Q: Can the 301SZBE operate across the same temperature range as the 305SZBE?

A: Yes. Both components are rated for operation from -30°C to 85°C.