PUI Audio X-20 Equivalent & Substitute Parts

Part Overview

The PUI Audio X-20 is an internally driven piezo buzzer rated for 32V DC operation with a 2.8kHz frequency output, designed for panel mount applications. This component is classified as obsolete, making identification of compatible substitute parts essential for ongoing system maintenance and new design implementations. The X-20 serves as an audio indicator in applications requiring reliable piezo-based signaling at fixed voltage levels.

Substiute Parts

X-20

PUI Audio, Inc.In Stock: 758X-20 Datasheet

Current PartRFQ

X-4028-P-C32-R

PUI Audio, Inc.In Stock: 1852X-4028-P-C32-R Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the X-20 is determined by the following critical parameters that must remain consistent:

• Voltage Rating: 32V DC operation is mandatory for direct substitution
• Frequency: 2.8kHz output frequency must be maintained
• Technology: Piezo-based internal driver configuration
• Input Type: DC signal requirement
• Mounting Type: Panel mount form factor

The substitute part X-4028-P-C32-R meets all these core electrical and mechanical requirements while offering enhanced specifications including defined current consumption, sound pressure level output, and extended operating temperature range. Both components share identical voltage rating, frequency, technology platform, and mounting methodology, establishing direct substitution compatibility.

Parameter Comparison

Engineering Selection Recommendations

The X-4028-P-C32-R is the direct substitute for the obsolete X-20 based on matching electrical specifications: identical 32V DC rating, 2.8kHz frequency, piezo technology, and panel mount configuration. The substitute part carries Active product status, ensuring continued availability and supply chain reliability.

The X-4028-P-C32-R provides ROHS3 compliance, addressing regulatory requirements that may not have applied to the original X-20 design. The substitute operates across an extended voltage range (3 ~ 32V) compared to the fixed 32V specification of the X-20, offering design flexibility for applications requiring variable voltage operation while maintaining full compatibility at the rated 32V level.

Physical dimensions of the X-4028-P-C32-R (40mm x 40mm x 24.60mm maximum height) and termination configuration (Screw Terminal, Quick Connect Tab - 0.187") must be verified against the original X-20 mounting footprint and connection requirements to ensure mechanical fit within the target application.

Frequently Asked Questions (FAQ)

Q: Can the X-4028-P-C32-R directly replace the X-20 in existing designs?

A: Yes, the X-4028-P-C32-R is a direct electrical substitute, matching the 32V rating, 2.8kHz frequency, and piezo technology. Mechanical compatibility must be confirmed by comparing mounting dimensions and termination type against the original X-20 specifications.

Q: What is the voltage operating range for the substitute part?

A: The X-4028-P-C32-R operates across 3 ~ 32V, providing flexibility beyond the X-20's fixed 32V rating. At 32V, both components deliver equivalent performance.

Q: Does the substitute part meet current RoHS requirements?

A: Yes, the X-4028-P-C32-R is ROHS3 compliant, whereas the X-20 is RoHS non-compliant. This compliance upgrade may be required for new designs or regulatory updates.

Q: What is the current consumption of the substitute part?

A: The X-4028-P-C32-R draws 22mA at rated voltage, enabling accurate power supply and circuit design calculations.

Q: Are both parts available from the same manufacturer?

A: Yes, both the X-20 and X-4028-P-C32-R are manufactured by PUI Audio, Inc., ensuring consistent quality and design philosophy.

Q: What termination options does the substitute provide?

A: The X-4028-P-C32-R features Screw Terminal and Quick Connect Tab (0.187" / 4.75mm) termination, offering flexible connection methods for panel mount applications.