SC416 Piezo Buzzer Panel Mount - Equivalent & Substitute Parts

Part Overview

The SC416 is an internally driven piezo buzzer designed for panel mount applications with a 42.85mm diameter form factor. 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 stocked, making it suitable for new designs and replacement applications in audio signaling systems.

Substitute parts become necessary when addressing specific compliance requirements, managing supply chain constraints, or matching design specifications that require particular certifications or RoHS compliance levels.

Substiute Parts

SC416

Mallory Sonalert Products Inc.In Stock: 1044SC416 Datasheet

Current PartRFQ

SC416R

Mallory Sonalert Products Inc.In Stock: 894SC416R Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

The SC416R qualifies as a direct substitute based on identical electrical and mechanical parameters. Substitution eligibility is determined by the following criteria:

• Voltage Range: 4 ~ 16V (identical)
• Frequency: 2.9kHz (identical)
• Sound Pressure Level: 68dB @ 4V, 61cm (identical)
• Current Supply: 4 ~ 14mA (identical)
• Mounting Type: Panel Mount (identical)
• Termination: Screw Terminal, Quick Connect Tab - 0.250" (6.35mm) (identical)
• Physical Dimensions: 1.687" Dia × 1.809" Height (identical)
• Operating Temperature: -30°C ~ 65°C (identical)

The SC416R maintains full functional equivalence with the SC416 across all specified electrical and mechanical parameters, enabling direct substitution in circuit designs and mechanical assemblies.

Parameter Comparison

Engineering Selection Recommendations

Both SC416 and SC416R are active production parts from Mallory Sonalert Products Inc. with identical electrical performance and mechanical compatibility.

The SC416R provides enhanced compliance certification with cUL and UL approvals compared to the SC416's UL-only certification. The SC416R also meets ROHS3 compliance requirements, whereas the SC416 is RoHS non-compliant.

Selection between these parts should be based on regulatory and compliance requirements specific to the application. Applications requiring RoHS3 compliance or dual cUL/UL certification should specify the SC416R. Applications without these compliance constraints may use either part interchangeably.

Frequently Asked Questions (FAQ)

Q: Can SC416R replace SC416 in existing designs?

A: Yes. The SC416R is electrically and mechanically identical to the SC416. All electrical parameters, frequency response, sound output, voltage range, current consumption, and physical dimensions are equivalent. Direct substitution is possible without circuit or mechanical redesign.

Q: What is the primary difference between SC416 and SC416R?

A: The SC416R includes ROHS3 compliance certification and dual cUL/UL approvals, whereas the SC416 carries only UL approval and is RoHS non-compliant. Electrical and mechanical performance are identical.

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

A: No. Both parts share identical panel mount specifications: 1.687" diameter (42.85mm) with 1.809" maximum seated height (45.96mm). Mounting holes, screw terminal positioning, and quick connect tab dimensions are identical.

Q: What termination options are available?

A: Both SC416 and SC416R use screw terminal connections with quick connect tabs rated for 0.250" (6.35mm) connectors. No alternative termination styles are available within this product family.

Q: Which part should be selected for new designs?

A: For new designs, the SC416R is the preferred selection due to its ROHS3 compliance and enhanced certification coverage. This ensures compatibility with current regulatory requirements and supply chain standards.

Q: Is inventory availability a factor in part selection?

A: Both parts are in active production with substantial stock levels. SC416 has 987 units in stock, and SC416R has 815 units in stock. Availability should not be a limiting factor in part selection.