SC628F Piezo Buzzer - Equivalent & Substitute Parts

Part Overview

The SC628F is an internally driven piezo buzzer designed for panel mount applications. This component operates as a single-tone indicator with integrated driver circuitry, requiring only DC voltage input without external signal generation. The part is currently active in production and widely used in control panels, alarm systems, and indicator applications where compact, reliable audible signaling is required.

Identifying equivalent and substitute parts is necessary when the primary part number becomes unavailable, when alternative compliance certifications are required, or when inventory constraints necessitate sourcing from available stock.

Substiute Parts

SC628F

Mallory Sonalert Products Inc.In Stock: 858SC628F Datasheet

Current PartRFQ

SC628FR

Mallory Sonalert Products Inc.In Stock: 1060SC628FR Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the SC628F is determined by strict equivalence across the following critical parameters:

• Piezo technology with internally driven indicator circuitry
• DC input type with 6 ~ 28V voltage range
• 2.9kHz single-tone frequency output
• 55dB sound pressure level at 6V, 61cm measurement distance
• 2 ~ 4mA current supply requirement
• Panel mount configuration with 42.98mm diameter
• Screw terminal and quick connect tab termination (0.250" / 6.35mm)
• Operating temperature range of -30°C ~ 65°C

The SC628FR meets all these parameters and is classified as a direct equivalent. Substitution is valid when these electrical and mechanical specifications are maintained across the application circuit.

Parameter Comparison

Engineering Selection Recommendations

The SC628FR is a direct functional equivalent to the SC628F across all electrical and mechanical parameters. Both parts are manufactured by Mallory Sonalert Products Inc. within the SC series and maintain identical performance specifications for voltage range, frequency, sound pressure level, current consumption, and physical dimensions.

The primary distinction between these parts is regulatory compliance status. The SC628F is RoHS non-compliant, while the SC628FR is ROHS3 compliant. Selection between these parts should be based on the regulatory requirements of the end application and target market. Applications subject to RoHS3 directives or customer specifications requiring RoHS compliance must use the SC628FR. Applications without such requirements may use either part.

Both parts are active in production status and carry identical REACH and ECCN classifications. Inventory availability shows SC628FR at 965 pieces and SC628F at 804 pieces in current stock.

Frequently Asked Questions (FAQ)

Q: Can SC628FR be used as a direct replacement for SC628F in existing designs?

A: Yes. The SC628FR is electrically and mechanically identical to the SC628F. All performance parameters including voltage range, frequency, sound pressure level, current draw, and physical dimensions are equivalent. The parts are interchangeable from a functional standpoint.

Q: What is the difference between SC628F and SC628FR?

A: The primary difference is RoHS compliance status. SC628F is RoHS non-compliant, while SC628FR is ROHS3 compliant. All other specifications are identical.

Q: Which part should I specify for new designs?

A: Specify SC628FR for new designs unless RoHS compliance is explicitly not required by your application or customer specifications. SC628FR provides the same functionality with current regulatory compliance.

Q: Are the physical dimensions identical between SC628F and SC628FR?

A: Yes. Both parts have a 1.692" diameter (42.98mm) and maximum seated height of 1.330" (33.77mm). Panel mount hole patterns and termination positions are identical.

Q: Can these parts be used interchangeably in the same PCB assembly?

A: Yes. The SC628F and SC628FR share identical mounting type (panel mount), termination style (screw terminal with quick connect tab 0.250" / 6.35mm), and physical dimensions. No circuit board modifications are required for substitution.

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

A: Both SC628F and SC628FR operate across -30°C to 65°C. This range applies to all electrical and mechanical specifications.

Q: Are there any supply chain or availability differences?

A: Current inventory shows SC628FR at 965 pieces and SC628F at 804 pieces. SC628FR may offer better long-term availability due to its RoHS3 compliance alignment with current manufacturing standards.