MSR516N Equivalent & Substitute Parts

Part Overview

The MSR516N is a piezo buzzer manufactured by Mallory Sonalert Products Inc., designed as an internally driven indicator with a 23mm diameter form factor and through-hole PC pin termination. This component operates across a 5–16V DC input range, delivering 75dB sound pressure level at 5V measured at 61cm, with a frequency of 3.85kHz and current consumption of 3–14mA. The MSR516N is classified as obsolete, making identification of suitable substitute components essential for ongoing design support and production continuity.

Substiute Parts

MSR516N

Mallory Sonalert Products Inc.In Stock: 1070MSR516N Datasheet

Current PartRFQ

MSR516NR

Mallory Sonalert Products Inc.In Stock: 2445MSR516NR Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the MSR516N is determined by strict equivalence across the following critical parameters:

Mandatory Equivalence Criteria:

• Manufacturer: Mallory Sonalert Products Inc.
• Series: MSR
• Technology: Piezo
• Driver Circuitry: Indicator, Internally Driven
• Input Type: DC
• Voltage Range: 5–16V (minimum requirement)
• Operating Mode: Single Tone
• Mounting Type: Through Hole
• Termination: PC Pins
• Size / Dimension: 0.906" Dia (23.00mm)
• Height – Seated (Max): 0.421" (10.70mm)

Allowable Parameter Variations:

• Frequency: ±0.15kHz tolerance acceptable
• Sound Pressure Level (SPL): Higher SPL values acceptable; measured at different distances
• Current Supply: Within 3–14mA range
• Operating Temperature: Extended range acceptable
• Product Status: Active status preferred for ongoing availability
• RoHS Compliance: Upgraded compliance acceptable

The MSR516NR meets all mandatory equivalence criteria and represents a direct substitute within the MSR series.

Parameter Comparison

Engineering Selection Recommendations

The MSR516NR is a direct substitute for the MSR516N based on identical mechanical form factor, electrical interface, and functional operation within the MSR series. Key advantages of the MSR516NR include:

Product Status: The MSR516NR carries Active status, ensuring continued manufacturer support and availability, whereas the MSR516N is Obsolete.

Compliance: The MSR516NR is ROHS3 Compliant, meeting current regulatory requirements. The MSR516N is RoHS non-compliant and may present procurement restrictions in regulated markets.

Operating Temperature Range: The MSR516NR extends the operating temperature range to –40°C to 85°C, compared to the MSR516N range of –20°C to 65°C, providing greater thermal flexibility.

Acoustic Performance: The MSR516NR delivers 86dB SPL at 5V measured at 30cm, compared to 75dB SPL at 5V measured at 61cm for the MSR516N. The measurement distance difference reflects improved acoustic efficiency.

Frequency Tolerance: The MSR516NR operates at 3.9kHz versus 3.85kHz for the MSR516N, a variation of 0.05kHz within acceptable tolerance for single-tone piezo indicator applications.

All electrical parameters, including voltage range (5–16V), current consumption (3–14mA), and DC input type, remain identical. Mechanical compatibility is assured through identical 23mm diameter and 10.70mm maximum seated height dimensions with through-hole PC pin termination.

Frequently Asked Questions (FAQ)

Q: Can the MSR516NR be used as a direct replacement for the MSR516N in existing designs?

A: Yes. The MSR516NR is mechanically and electrically compatible with the MSR516N. Both components share identical voltage range (5–16V), current consumption (3–14mA), form factor (23mm diameter, 10.70mm height), and through-hole PC pin termination. No circuit modifications are required.

Q: What is the significance of the frequency difference between MSR516N (3.85kHz) and MSR516NR (3.9kHz)?

A: The frequency difference of 0.05kHz is within normal tolerance for piezo buzzer manufacturing and does not affect functional compatibility in single-tone indicator applications. Both frequencies fall within the audible range and produce equivalent perceptual tone characteristics.

Q: Why are the Sound Pressure Level measurements taken at different distances?

A: SPL measurements are standardized at specific distances by the manufacturer. The MSR516N is measured at 61cm while the MSR516NR is measured at 30cm. The MSR516NR's higher SPL value (86dB vs. 75dB) reflects improved acoustic efficiency of the component design, not a measurement error. Both components meet the acoustic requirements of internally driven indicator applications.

Q: Does the extended operating temperature range of the MSR516NR affect compatibility?

A: No. The MSR516NR's extended range (–40°C to 85°C) is a superset of the MSR516N range (–20°C to 65°C). Applications operating within the original MSR516N temperature limits will function identically with the MSR516NR.

Q: What is the impact of RoHS3 compliance on the MSR516NR?

A: RoHS3 compliance indicates the MSR516NR meets current environmental and hazardous substance restrictions. For applications subject to RoHS regulations or procurement policies, the MSR516NR is the appropriate choice. The MSR516N's RoHS non-compliant status may restrict its use in regulated markets.

Q: Is the MSR516NR available in the same packaging as the MSR516N?

A: The MSR516NR is supplied in Bulk packaging. Packaging format should be verified against procurement requirements. Both components are available in new original stock.

Q: Are there any electrical circuit considerations when substituting the MSR516N with the MSR516NR?

A: No circuit modifications are necessary. Both components operate identically as internally driven DC piezo indicators with the same voltage range, current consumption, and input type. Direct pin-for-pin substitution is supported.