SC110CP Piezo Buzzer - Equivalent & Substitute Parts

Part Overview

The SC110CP is an internally driven piezo buzzer manufactured by Mallory Sonalert Products Inc., designed for panel mount applications with AC input voltage ranging from 30V to 120V. This component operates at 2.9kHz with a sound pressure level of 68dB at 30V measured at 61cm, drawing 6 to 22mA during operation. The part is classified as obsolete, making identification of suitable substitute components essential for ongoing system maintenance and new design implementations where equivalent functionality is required.

Substiute Parts

SC110CP

Mallory Sonalert Products Inc.In Stock: 895SC110CP Datasheet

Current PartRFQ

SCE120MA3CP1S

Mallory Sonalert Products Inc.In Stock: 835SCE120MA3CP1S Datasheet

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Key Parameters

Substitute Part Grouping Explanation

The SCE120MA3CP1S qualifies as a substitute for the SC110CP based on the following critical parameters:

Matching Parameters:

• Identical piezo technology and internally driven indicator circuitry
• AC input type maintained
• Matching frequency of 2.9kHz
• Identical panel mount configuration with screw terminal and quick connect tab termination
• Identical physical diameter of 1.687" (42.85mm)
• Same approval agency certification (cUL, with additional UL certification)
• Equivalent HTSUS and ECCN classifications

Allowable Variations:

• Voltage range expansion from 30~120V to 48~120V (higher minimum operating voltage)
• Current supply increase from 6~22mA to 40mA (higher supply current)
• Sound pressure level increase from 68dB to 75dB at reference conditions
• Operating temperature range expansion from -30°C~65°C to -40°C~85°C
• Height reduction from 2.459" to 1.399" (more compact form factor)
• Product status change from obsolete to active
• RoHS compliance upgrade from non-compliant to ROHS3 compliant

Parameter Comparison

Engineering Selection Recommendations

The SCE120MA3CP1S is the designated substitute for the obsolete SC110CP. Selection of this substitute is supported by the following factors:

Product Availability: The SC110CP is classified as obsolete, while the SCE120MA3CP1S maintains active production status, ensuring long-term availability and supply chain continuity.

Compliance and Certification: The SCE120MA3CP1S carries both cUL and UL certifications, providing enhanced regulatory coverage compared to the SC110CP's cUL-only certification. The SCE120MA3CP1S achieves ROHS3 compliance, addressing modern environmental and regulatory requirements that the non-compliant SC110CP does not meet.

Functional Compatibility: Both components share identical core specifications: piezo technology, internally driven indicator circuitry, AC input type, 2.9kHz frequency, chime operating mode, panel mount configuration, and identical termination style. The physical diameter remains constant at 1.687" (42.85mm), ensuring mechanical fit in existing panel cutouts.

System Integration Considerations: Before implementation, verify that the system power supply can accommodate the SCE120MA3CP1S's 40mA current draw and minimum 48V operating voltage requirement. The reduced height of 1.399" (35.54mm) compared to 2.459" (62.45mm) provides improved panel depth clearance. The expanded operating temperature range of -40°C to 85°C supports deployment in more demanding thermal environments.

Frequently Asked Questions (FAQ)

Q: Can the SCE120MA3CP1S directly replace the SC110CP in existing installations?

A: Direct replacement is possible if the system meets the SCE120MA3CP1S's minimum voltage requirement of 48V and the power supply can deliver 40mA. The identical panel mount diameter, termination style, and frequency ensure mechanical and electrical compatibility. Verify these conditions before implementation.

Q: What is the primary reason for substitution?

A: The SC110CP is obsolete and no longer in production. The SCE120MA3CP1S is the active equivalent from the same manufacturer, ensuring continued availability and supply chain reliability.

Q: Are there voltage compatibility concerns?

A: The SC110CP operates from 30V minimum, while the SCE120MA3CP1S requires a minimum of 48V. Systems operating below 48V cannot use the SCE120MA3CP1S. Confirm your system voltage before substitution.

Q: How does the current draw difference affect system design?

A: The SCE120MA3CP1S draws 40mA compared to the SC110CP's 6~22mA range. Verify that the power supply and circuit protection components are rated for this higher current. Undersized power supplies or protection devices may require upgrading.

Q: What are the physical dimension differences?

A: Both components share the same 1.687" (42.85mm) diameter for panel mounting. The SCE120MA3CP1S is significantly more compact at 1.399" (35.54mm) height versus the SC110CP's 2.459" (62.45mm). This reduced depth improves panel clearance and may eliminate previous space constraints.

Q: Does the SCE120MA3CP1S meet modern compliance standards?

A: Yes. The SCE120MA3CP1S is ROHS3 compliant and carries both cUL and UL certifications, meeting current regulatory requirements. The SC110CP is RoHS non-compliant and carries only cUL certification.

Q: Are there acoustic differences between the two models?

A: The SCE120MA3CP1S produces 75dB at 48V measured at 61cm, compared to the SC110CP's 68dB at 30V measured at 61cm. The higher sound pressure level may be noticeable in applications where acoustic output is critical.

Q: What is the operating temperature range difference?

A: The SC110CP operates from -30°C to 65°C, while the SCE120MA3CP1S supports -40°C to 85°C. The expanded range of the SCE120MA3CP1S accommodates more extreme thermal environments.