MSR516XR Equivalent & Substitute Parts

Part Overview

The MSR516XR is a 23mm through-hole piezo buzzer manufactured by Mallory Sonalert Products Inc., designed as an internally driven indicator with siren operation mode. This component operates across a 5–16V DC input range, delivering 82dB sound pressure level at 5V over 30cm with a 3.4kHz frequency output. The product is classified as obsolete, making identification of compatible substitute components essential for ongoing system support and new design implementations.

Substiute Parts

MSR516XR

Mallory Sonalert Products Inc.In Stock: 931MSR516XR Datasheet

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MSE14LSN2

Mallory Sonalert Products Inc.In Stock: 1053MSE14LSN2 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the MSR516XR is determined by the following critical parameters:

Mandatory Compatibility Criteria:

• Driver Circuitry: Indicator, Internally Driven
• Input Type: DC
• Technology: Piezo
• Mounting Type: Through Hole
• Termination: PC Pins
• Port Location: Top

Operational Compatibility Parameters:

• Voltage Range: Must overlap or encompass the 5–16V operating window
• Current Supply: Must be compatible with circuit design constraints
• Operating Temperature: Must support the –20°C to 65°C range
• Frequency: Must operate within acceptable audio spectrum for the application
• Sound Pressure Level: Must meet or exceed 82dB @ reference conditions

The MSE14LSN2 qualifies as a substitute based on alignment across all mandatory criteria and operational parameters, with the exception of increased current draw (50mA vs. 3–12mA) and modified frequency characteristics (4kHz vs. 3.4kHz).

Parameter Comparison

Engineering Selection Recommendations

MSE14LSN2 Substitution Considerations:

The MSE14LSN2 is an active product from the same manufacturer, providing continuity for applications requiring MSR516XR replacement. Both components maintain ROHS3 compliance and REACH unaffected status, ensuring regulatory alignment.

Key differences requiring circuit evaluation:

• Voltage Range Shift: MSE14LSN2 operates 7–14V versus MSR516XR 5–16V. Applications operating below 7V require alternative solutions.
• Current Demand: MSE14LSN2 draws 50mA compared to MSR516XR 3–12mA. Power supply and trace current capacity must be verified.
• Frequency Variance: 4kHz output versus 3.4kHz may affect audio perception in applications where frequency response is specified.
• Sound Pressure Level: MSE14LSN2 delivers 85dB @ 7V, 30cm, exceeding MSR516XR performance at 82dB @ 5V, 30cm.
• Physical Dimensions: MSE14LSN2 height increases to 0.535" (13.60mm) from 0.421" (10.70mm), requiring PCB layout verification.
• Operating Temperature: MSE14LSN2 extends lower temperature operation to –40°C, providing enhanced cold-weather performance.

Frequently Asked Questions (FAQ)

Q: Can MSE14LSN2 directly replace MSR516XR in existing designs?

A: Direct replacement requires verification of three factors: (1) circuit voltage supply operates within 7–14V range, (2) power supply can deliver 50mA current, and (3) PCB layout accommodates increased height of 0.535" (13.60mm). If any factor cannot be satisfied, alternative components must be evaluated.

Q: What is the impact of frequency difference between 3.4kHz and 4kHz?

A: Both frequencies fall within the audible spectrum for alarm and indicator applications. The 4kHz output of MSE14LSN2 may produce a slightly higher-pitched tone. Application-specific audio requirements determine acceptability.

Q: Are both components RoHS and REACH compliant?

A: Both MSR516XR and MSE14LSN2 are ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory standards for electronic components.

Q: Why does MSE14LSN2 require significantly higher current?

A: The 50mA supply current of MSE14LSN2 reflects its enhanced acoustic output (85dB) and additional operating mode capability (Siren, Fast). Circuit design must accommodate this increased power demand.

Q: What is the minimum voltage for MSE14LSN2 operation?

A: MSE14LSN2 operates at minimum 7V. Applications requiring 5V operation must use alternative components, as this substitute does not support the lower voltage range of the obsolete MSR516XR.

Q: How does the extended temperature range of MSE14LSN2 affect selection?

A: MSE14LSN2 operates to –40°C versus MSR516XR at –20°C. For applications in cold environments, MSE14LSN2 provides enhanced performance margin. Standard temperature applications (–20°C to 65°C) are supported by both components.