PB-4216-2 Equivalent & Substitute Parts

Part Overview

The PB-4216-2 is an externally driven piezo buzzer manufactured by Soberton Inc., rated for 12V DC operation with a 2.8kHz single-tone output. This component is designed for panel-mount applications requiring audible signaling in industrial and consumer electronics. The part is currently active in production with full RoHS3 compliance and REACH unaffected status. Substitute parts are identified to provide design flexibility, accommodate supply chain variations, or meet specific performance requirements while maintaining functional compatibility within the 12V piezo buzzer category.

Substiute Parts

PB-4216-2

Soberton Inc.In Stock: 1209PB-4216-2 Datasheet

Current PartRFQ

AI-4228-TF-LW140-3-R

PUI Audio, Inc.In Stock: 30104AI-4228-TF-LW140-3-R Datasheet

DirectRFQ

CPE-350A

CUI DevicesIn Stock: 1349CPE-350A Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the PB-4216-2 are qualified based on the following critical parameters:

• Rated voltage: 12V DC
• Frequency: 2.8kHz
• Technology: Piezo
• Operating mode: Single Tone
• Mounting type: Panel Mount, Flange
• Termination: Wire Leads
• Physical dimension: 1.646" Dia (41.80mm)
• Voltage range compatibility: 3 ~ 20V

The identified substitutes maintain these core electrical and mechanical specifications. Variations in driver circuitry (externally driven vs. internally driven), current consumption, sound pressure level, and operating temperature range are documented to enable informed selection based on application requirements.

Parameter Comparison

Engineering Selection Recommendations

All three parts maintain active product status and full RoHS3 compliance with REACH unaffected designation, ensuring regulatory alignment for current applications.

PB-4216-2 (Soberton Inc.): Primary specification with externally driven architecture. Lowest current consumption at 8mA and widest operating temperature range (-40°C ~ 85°C). Suitable for applications requiring minimal power draw and extended temperature operation.

AI-4228-TF-LW140-3-R (PUI Audio, Inc.): Internally driven alternative with highest sound pressure level at 105dB @ 12V, 10cm. Current consumption of 10mA and reduced operating temperature range (-20°C ~ 60°C). Selection appropriate for applications prioritizing acoustic output within standard industrial temperature limits.

CPE-350A (CUI Devices): Internally driven option with highest current consumption at 12mA and operating temperature range of -30°C ~ 85°C. Sound pressure level specified at 92dB @ 12V, 30cm. Selection suitable for applications with extended low-temperature operation and where acoustic output measurement distance differs from standard 10cm reference.

Frequently Asked Questions (FAQ)

Q: Can AI-4228-TF-LW140-3-R replace PB-4216-2 in all applications?

A: Functional replacement is possible within the common operating temperature range of -20°C ~ 60°C. Applications requiring operation below -20°C or above 60°C must use PB-4216-2 or CPE-350A. The internally driven architecture of AI-4228-TF-LW140-3-R eliminates the need for external driver circuitry, which may simplify board design but requires verification of control signal compatibility.

Q: What is the difference between externally driven and internally driven piezo buzzers?

A: PB-4216-2 is externally driven, requiring an external oscillator circuit to generate the 2.8kHz tone. AI-4228-TF-LW140-3-R and CPE-350A are internally driven, containing integrated oscillator circuits that produce the tone when DC voltage is applied. This affects circuit design, component count, and power consumption.

Q: Are all three parts mechanically interchangeable?

A: Yes. All three parts share identical diameter (1.646" / 41.80mm), panel mount flange configuration, and wire lead termination. Height variation is minimal (0.642" to 0.650"), presenting no practical mounting interference in standard panel applications.

Q: How do sound pressure level measurements differ between parts?

A: PB-4216-2 and AI-4228-TF-LW140-3-R specify SPL at 10cm distance, while CPE-350A specifies SPL at 30cm distance. Direct acoustic comparison requires normalizing measurements to the same reference distance. At equivalent 10cm measurement, CPE-350A acoustic output would be approximately 6dB higher than the stated 92dB value.

Q: Which part should be selected for low-temperature applications?

A: PB-4216-2 supports operation to -40°C, making it the only option for applications requiring temperatures below -30°C. CPE-350A supports -30°C minimum. AI-4228-TF-LW140-3-R is limited to -20°C minimum.

Q: What packaging considerations apply to these parts?

A: PB-4216-2 and AI-4228-TF-LW140-3-R are supplied in Bulk packaging. CPE-350A is supplied in Box packaging. Packaging format may affect procurement quantities, storage requirements, and handling procedures but does not affect functional performance.