PKB24SPC-3601-B0 Equivalent & Substitute Parts

Part Overview

The PKB24SPC-3601-B0 is an internally driven piezo buzzer manufactured by Murata Electronics, designed for 12V DC applications with a rated output of 90dB at 10cm. This through-hole component operates at 3.6kHz with a 16mA supply current and is housed in a 24.3mm diameter package. The product is classified as obsolete, making identification of compatible substitute parts essential for ongoing system support and new design implementations.

Substiute Parts

PKB24SPC-3601-B0

Murata ElectronicsIn Stock: 962PKB24SPC-3601-B0 Datasheet

Current PartRFQ

MSR320R

Mallory Sonalert Products Inc.In Stock: 1993MSR320R Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the PKB24SPC-3601-B0 is determined by the following critical parameters:

• Technology & Driver Type: Internally driven piezo buzzer with DC input
• Mounting & Termination: Through-hole package with PC pins
• Voltage Compatibility: Operating voltage range overlap (3 ~ 15V for main part; 3 ~ 20V for substitute)
• Frequency Range: Operating frequency within acceptable tolerance (3.6kHz main; 4.6kHz substitute)
• Physical Dimensions: Package diameter and height compatibility for PCB layout
• Current Supply: Supply current within circuit design limits (16mA main; 3 ~ 16mA substitute)

The MSR320R from Mallory Sonalert Products Inc. qualifies as a substitute based on these parameters. Both components share identical technology, mounting type, termination style, and overlapping voltage/current specifications. The substitute operates within the voltage range of the original part and maintains compatible frequency characteristics.

Parameter Comparison

Engineering Selection Recommendations

The MSR320R is suitable as a substitute for the PKB24SPC-3601-B0 based on the following factors:

• Product Status: The MSR320R is active and currently manufactured, providing long-term availability compared to the obsolete PKB24SPC-3601-B0.
• Compliance: The MSR320R is ROHS3 compliant, whereas the original part is RoHS non-compliant. This distinction is relevant for applications subject to RoHS regulations.
• Electrical Compatibility: The substitute operates within the voltage range of the original part (3 ~ 20V encompasses 3 ~ 15V) and maintains compatible current specifications (3 ~ 16mA includes the 16mA rated supply).
• Physical Compatibility: Both components use through-hole mounting with PC pin termination. Dimensional differences (23.00mm vs 24.30mm diameter; 10.70mm vs 10.00mm height) are minor and typically accommodate standard PCB layouts.
• Functional Equivalence: Both components are internally driven piezo buzzers with single-tone operation and DC input, ensuring functional compatibility in indicator applications.

Frequently Asked Questions (FAQ)

Q: Can the MSR320R directly replace the PKB24SPC-3601-B0 on existing PCBs?

A: Yes, the MSR320R is mechanically and electrically compatible. Both components use through-hole mounting with PC pins. The slight dimensional differences (1.3mm diameter reduction, 0.7mm height increase) fall within standard PCB layout tolerances for through-hole components.

Q: What is the frequency difference between these parts, and does it affect functionality?

A: The PKB24SPC-3601-B0 operates at 3.6kHz while the MSR320R operates at 4.6kHz. This 100Hz difference is negligible for audible indicator applications and does not affect functional performance in typical circuit designs.

Q: Are there voltage compatibility concerns when substituting?

A: No. The MSR320R voltage range (3 ~ 20V) fully encompasses the original part's range (3 ~ 15V). At the rated 12V operating point, both components function within their specified parameters.

Q: Does the RoHS compliance difference matter for my application?

A: This depends on your regulatory requirements. If your application or market requires RoHS compliance, the MSR320R (ROHS3 compliant) is the appropriate choice. The original PKB24SPC-3601-B0 is RoHS non-compliant.

Q: What is the current supply difference between these parts?

A: The PKB24SPC-3601-B0 has a fixed 16mA supply current. The MSR320R has a variable range of 3 ~ 16mA. Both components operate at 16mA when supplied with 12V, ensuring circuit compatibility.

Q: Is the MSR320R suitable for the full operating temperature range of the original part?

A: The MSR320R operates from -40°C ~ 85°C, which exceeds the original part's range of -20°C ~ 70°C. The substitute is suitable for applications within the original temperature range and extends capability for wider temperature environments.