SC110D Piezo Buzzer Panel Mount - Equivalent & Substitute Parts

Part Overview

The SC110D is an internally driven piezo buzzer manufactured by Mallory Sonalert Products Inc., designed for panel mount applications with screw terminal and quick connect tab termination. This component operates across a voltage range of 30–120V AC/DC, producing a 2kHz single tone output at 60dB SPL (measured at 30V, 61cm distance) with a current draw of 6–21mA. The part is actively produced and cUL approved, making it suitable for industrial control panels, alarm systems, and indicator applications requiring audible feedback.

Equivalent parts are necessary when original inventory is unavailable, when design revisions require enhanced compliance certifications, or when supply chain optimization requires sourcing from available stock.

Substiute Parts

SC110D

Mallory Sonalert Products Inc.In Stock: 832SC110D Datasheet

Current PartRFQ

SC110DR

Mallory Sonalert Products Inc.In Stock: 927SC110DR Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the SC110D is determined by strict equivalence across the following critical parameters:

Electrical Compatibility:

• Voltage range: 30–120V (AC/DC input)
• Frequency: 2kHz
• Current draw: 6–21mA
• Sound output: 60dB SPL @ 30V, 61cm

Mechanical Compatibility:

• Mounting type: Panel mount
• Termination style: Screw terminal with quick connect tab (0.250" / 6.35mm)
• Physical dimensions: 1.687" diameter (42.85mm), 1.399" maximum seated height (35.54mm)
• Port location: Top

Functional Requirements:

• Driver circuitry: Internally driven indicator
• Operating mode: Single tone
• Temperature range: –30°C to 65°C

Parts meeting all these criteria are direct functional equivalents and may be substituted without circuit redesign or mechanical modification.

Parameter Comparison

Engineering Selection Recommendations

SC110D Selection: Use the SC110D when cUL certification alone satisfies regulatory requirements and RoHS compliance is not mandated by design specifications or end-market regulations.

SC110DR Selection: Use the SC110DR when designs require ROHS3 compliance or when dual certification (cUL and UL) is specified. The SC110DR provides enhanced regulatory coverage while maintaining identical electrical and mechanical performance to the SC110D.

Both parts are actively produced and available in production quantities. Selection between SC110D and SC110DR should be based solely on compliance certification requirements for the target application and regulatory jurisdiction.

Frequently Asked Questions (FAQ)

Q: Can SC110DR be used as a direct replacement for SC110D in existing designs?

A: Yes. The SC110DR is electrically and mechanically identical to the SC110D. All electrical parameters, physical dimensions, mounting specifications, and termination styles are equivalent. The SC110DR may be substituted without circuit modification or mechanical redesign.

Q: What is the difference between SC110D and SC110DR?

A: The primary differences are certification scope and RoHS compliance status. The SC110D carries cUL approval and is RoHS non-compliant. The SC110DR carries both cUL and UL approvals and is ROHS3 compliant. All functional and electrical specifications are identical.

Q: Does the SC110DR's additional UL certification affect performance?

A: No. UL certification is a regulatory approval pathway and does not alter the component's electrical performance, frequency output, sound pressure level, or operating characteristics. Both parts produce identical 2kHz, 60dB SPL output.

Q: Are there any mechanical compatibility issues when substituting SC110D with SC110DR?

A: No. Both parts share identical panel mount specifications, screw terminal configuration, quick connect tab dimensions (0.250" / 6.35mm), and physical envelope (1.687" diameter, 1.399" maximum height). Direct mechanical substitution is possible without panel modification.

Q: Which part should be selected for new designs?

A: For new designs, SC110DR is recommended when RoHS3 compliance is anticipated or when dual certification (cUL/UL) provides value for market access. For applications where RoHS compliance is not required and cUL certification is sufficient, either part is acceptable based on availability and cost considerations.

Q: What is the operating temperature range for both parts?

A: Both SC110D and SC110DR operate across –30°C to 65°C. Temperature performance is identical between the two parts.

Q: Can these parts be used with AC and DC power supplies?

A: Yes. Both SC110D and SC110DR accept AC and DC input across the 30–120V range. No input type modification is required for either part.