SC616NPU Equivalent & Substitute Parts

Part Overview

The SC616NPU is a panel-mounted piezo buzzer manufactured by Mallory Sonalert Products Inc., designed for internally driven indicator applications. This component operates on DC voltage between 6 and 16V, producing a 2.9kHz tone at 80dB sound pressure level when measured at 6V and 61cm distance. The buzzer features a 42.85mm diameter with screw terminal and quick connect tab termination.

The SC616NPU is classified as obsolete. Identifying equivalent substitute parts is necessary to maintain design continuity, ensure component availability, and support ongoing production or maintenance requirements for systems utilizing this buzzer.

Substiute Parts

SC616NPU

Mallory Sonalert Products Inc.In Stock: 724SC616NPU Datasheet

Current PartRFQ

SC616NPUR

Mallory Sonalert Products Inc.In Stock: 758SC616NPUR Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the SC616NPU is determined by the following critical parameters:

• Voltage Range: Must support 6 ~ 16V DC operation
• Frequency: Must operate at 2.9kHz
• Sound Pressure Level: Must maintain 80dB @ 6V, 61cm
• Mounting Type: Must be panel mount configuration
• Termination: Must feature screw terminal and quick connect tab - 0.250" (6.35mm)
• Size / Dimension: Must maintain 1.687" Dia (42.85mm) footprint
• Technology: Must be piezo-based
• Driver Circuitry: Must be internally driven indicator type
• Input Type: Must be DC

The SC616NPUR qualifies as a substitute part. It maintains identical specifications for voltage range, frequency, sound pressure level, mounting type, termination style, and physical dimensions. The substitute part differs in current supply specification (30mA versus 6 ~ 26mA range) and product status (Active versus Obsolete), along with improved RoHS compliance and reduced seated height.

Parameter Comparison

Engineering Selection Recommendations

The SC616NPUR is the qualified substitute for the SC616NPU based on the following factors:

Product Status: The SC616NPU is obsolete, while the SC616NPUR is active. Selection of the active part ensures ongoing availability and manufacturer support.

Compliance: The SC616NPUR achieves ROHS3 compliance, whereas the SC616NPU is RoHS non-compliant. This compliance improvement aligns with current regulatory requirements for electronic components in many markets.

Functional Equivalence: Both parts maintain identical electrical specifications across voltage range, frequency, sound pressure level, and operating temperature. The termination style and mounting configuration are identical, supporting direct mechanical and electrical substitution.

Physical Dimensions: The SC616NPUR features a reduced seated height of 1.399" (35.54mm) compared to the SC616NPU at 1.946" (49.43mm). This dimensional difference must be evaluated against available panel mounting space in the target application.

Current Specification: The SC616NPUR specifies 30mA supply current, whereas the SC616NPU specifies a range of 6 ~ 26mA. Circuit design must accommodate the higher current requirement of the substitute part.

Frequently Asked Questions (FAQ)

Q: Can the SC616NPUR directly replace the SC616NPU in existing designs?

A: The SC616NPUR maintains identical electrical specifications and termination style, supporting direct substitution from an electrical standpoint. However, the reduced seated height (1.399" versus 1.946") must be verified against available panel mounting clearance. Current supply requirements must also be confirmed to support the 30mA specification.

Q: What is the primary reason for substituting the SC616NPU?

A: The SC616NPU is classified as obsolete. The SC616NPUR provides functional equivalence with active product status, ensuring component availability and manufacturer support for ongoing production and maintenance applications.

Q: Are there compliance differences between these parts?

A: Yes. The SC616NPU is RoHS non-compliant, while the SC616NPUR achieves ROHS3 compliance. This compliance improvement may be required depending on application market and regulatory jurisdiction.

Q: Do both parts operate at the same frequency and sound pressure level?

A: Yes. Both the SC616NPU and SC616NPUR operate at 2.9kHz frequency and produce 80dB sound pressure level when measured at 6V and 61cm distance.

Q: What is the voltage operating range for the SC616NPUR?

A: The SC616NPUR operates on DC voltage between 6 and 16V, identical to the SC616NPU.

Q: Are the termination connectors identical between both parts?

A: Yes. Both parts feature screw terminal and quick connect tab termination with 0.250" (6.35mm) connector size, supporting identical wiring configurations.

Q: What is the key difference in current consumption?

A: The SC616NPU specifies a current range of 6 ~ 26mA, while the SC616NPUR specifies 30mA. Circuit design must accommodate the higher fixed current requirement of the substitute part.