PB-2418-2 Equivalent & Substitute Parts

Part Overview

The PB-2418-2 is an externally driven piezo buzzer manufactured by Soberton Inc., rated for 12V DC operation with a 3.7kHz single-tone output. This component is designed for applications requiring audible signaling with a sound pressure level of 90dB at 12V measured 10cm from the device. The part maintains Active product status and is RoHS3 compliant. Substitute parts are identified when equivalent electrical performance, mechanical compatibility, and regulatory compliance can be maintained across different manufacturer implementations.

Substiute Parts

PB-2418-2

Soberton Inc.In Stock: 803PB-2418-2 Datasheet

Current PartRFQ

AI-2437-TWT-R

PUI Audio, Inc.In Stock: 6329AI-2437-TWT-R Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

The AI-2437-TWT-R qualifies as a substitute based on the following alignment criteria:

Electrical compatibility is established through matching rated voltage (12V), supply current (8mA), and operating frequency (3.7kHz). Both components operate within overlapping voltage ranges and deliver single-tone output suitable for equivalent signaling applications.

Mechanical compatibility is confirmed through identical mounting type (Through Hole), termination style (PC Pins), and package diameter (0.945" / 24.00mm). Physical footprint compatibility allows direct board-level substitution.

Regulatory compliance is maintained across both parts: RoHS3 compliant, REACH unaffected, and identical ECCN/HTSUS classifications.

The primary distinction between these parts is the driver circuitry architecture: PB-2418-2 uses externally driven operation, while AI-2437-TWT-R uses internally driven operation. This difference affects circuit integration requirements but does not prevent substitution when the application design accommodates the respective driver type.

Parameter Comparison

Engineering Selection Recommendations

Both PB-2418-2 and AI-2437-TWT-R maintain Active product status and full regulatory compliance under RoHS3 and REACH frameworks. Selection between these parts depends on circuit architecture requirements:

The PB-2418-2 requires external driver circuitry to generate the piezo element excitation signal. This configuration provides design flexibility for applications requiring custom tone generation or modulation.

The AI-2437-TWT-R incorporates internal driver circuitry, eliminating the need for external signal generation. This configuration reduces circuit complexity and component count for applications requiring standard single-tone operation.

Both parts operate within the same voltage range at rated conditions and deliver equivalent current consumption. The AI-2437-TWT-R produces 10dB higher sound pressure level (100dB versus 90dB), which may be relevant for applications with acoustic performance requirements.

Frequently Asked Questions (FAQ)

Q: Can AI-2437-TWT-R directly replace PB-2418-2 on the same PCB?

A: Physical and electrical compatibility is confirmed for board-level substitution. However, circuit integration differs due to driver architecture: PB-2418-2 requires external driver circuitry, while AI-2437-TWT-R includes internal driver circuitry. Circuit redesign may be necessary depending on the original design implementation.

Q: What is the voltage range difference between these parts?

A: PB-2418-2 operates across 3 ~ 20V, while AI-2437-TWT-R operates across 3 ~ 16V. Both are rated for 12V nominal operation. Applications requiring operation above 16V must use PB-2418-2.

Q: Are the physical dimensions identical?

A: Both parts share the same diameter (0.945" / 24.00mm) and port location (Top). Height differs slightly: PB-2418-2 measures 0.709" (18.00mm) maximum seated height, while AI-2437-TWT-R measures 0.728" (18.50mm). This 0.5mm difference is negligible for most PCB layouts.

Q: What does "internally driven" versus "externally driven" mean for substitution?

A: Externally driven (PB-2418-2) requires a separate driver circuit to generate the excitation signal. Internally driven (AI-2437-TWT-R) includes integrated driver circuitry and operates directly from DC voltage. Circuit integration requirements differ, but both deliver equivalent acoustic output at rated conditions.

Q: Are both parts RoHS3 compliant?

A: Yes. Both PB-2418-2 and AI-2437-TWT-R are RoHS3 compliant and REACH unaffected, meeting equivalent regulatory requirements.