PB-1420PL-03AQ Equivalent & Substitute Parts

Part Overview

The PB-1420PL-03AQ is a magnetic buzzer transducer manufactured by Mallory Sonalert Products Inc., designed as an externally driven audio signaling device. This component operates at 3V with a rated output of 85dB at 10cm distance and is configured for through-hole mounting with PC pin termination. The product is currently classified as obsolete, making identification of functionally equivalent alternatives essential for ongoing system support and new design implementations.

Substiute Parts

PB-1420PL-03AQ

Mallory Sonalert Products Inc.In Stock: 1029PB-1420PL-03AQ Datasheet

Current PartRFQ

PB-1420PL-03BMQ

Mallory Sonalert Products Inc.In Stock: 962PB-1420PL-03BMQ Datasheet

DirectRFQ

AT-0927-TT-6-R

PUI Audio, Inc.In Stock: 2910AT-0927-TT-6-R Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the PB-1420PL-03AQ are categorized based on the following critical parameters that determine functional equivalence:

Direct Substitution Criteria:

• Driver Circuitry: Transducer, Externally Driven
• Technology: Magnetic
• Mounting Type: Through Hole
• Termination: PC Pins
• Voltage Range Compatibility: Overlap with 1 ~ 4V
• Frequency Range: 2kHz nominal operation
• Sound Pressure Level: Minimum 85dB @ 3V, 10cm
• Current Supply: 35mA nominal

Part Classification:

Direct Manufacturer Equivalent: PB-1420PL-03BMQ represents a direct line successor from the same manufacturer with identical mechanical form factor and electrical interface, differing only in frequency specification (2.048kHz) and enhanced SPL output (90dB).

Similar Technology Alternative: AT-0927-TT-6-R from PUI Audio, Inc. operates within compatible voltage and frequency parameters but features a smaller 9mm form factor and higher current draw (80mA), requiring mechanical and electrical circuit validation for specific applications.

Parameter Comparison

Engineering Selection Recommendations

PB-1420PL-03BMQ (Direct Manufacturer Equivalent): This part is the recommended primary substitute. It maintains identical mechanical dimensions (14mm diameter, 5mm height) and electrical interface (PC pins, through-hole mounting), ensuring direct PCB compatibility. Both parts operate within the same voltage range (1 ~ 4V) and current specification (35mA). The frequency shift from 2kHz to 2.048kHz and SPL improvement from 85dB to 90dB represent manufacturing refinements within the same product line. Active product status ensures long-term availability and supply chain continuity. ROHS3 compliance is maintained.

AT-0927-TT-6-R (Similar Technology Alternative): This part is suitable only when mechanical form factor constraints permit a smaller 9mm diameter footprint. The 80mA current requirement necessitates driver circuit re-evaluation compared to the 35mA specification of the original part. The voltage range (2 ~ 4V) excludes operation below 2V, which may conflict with applications requiring the full 1V minimum of the original design. Frequency deviation (2.73kHz) and identical SPL output (85dB) indicate comparable acoustic performance. Active product status and ROHS3 compliance are confirmed. This alternative requires circuit validation before implementation.

Frequently Asked Questions (FAQ)

Q: Can PB-1420PL-03BMQ be used as a direct replacement for PB-1420PL-03AQ without PCB modifications?

A: Yes. Both parts share identical mechanical dimensions (14mm diameter, 5mm height), PC pin termination, and through-hole mounting configuration. No PCB layout changes are required. The voltage range (1 ~ 4V) and current specification (35mA) are identical, permitting direct driver circuit compatibility.

Q: What is the impact of the frequency difference between PB-1420PL-03AQ (2kHz) and PB-1420PL-03BMQ (2.048kHz)?

A: The 48Hz frequency shift represents a 2.4% deviation. For applications where acoustic tone matching is critical, this difference may be perceptible. For general signaling applications, this variance is within typical tolerance for magnetic buzzer technology.

Q: Why does AT-0927-TT-6-R require circuit re-evaluation?

A: The AT-0927-TT-6-R draws 80mA compared to the 35mA specification of PB-1420PL-03AQ. This 2.3x current increase requires driver circuit validation to confirm adequate current sourcing capability. Additionally, the minimum voltage specification (2V) excludes operation at 1V, which may impact applications requiring full voltage range compatibility.

Q: Is the 9mm form factor of AT-0927-TT-6-R compatible with existing PCB layouts designed for the 14mm PB-1420PL-03AQ?

A: No. The 9mm diameter is significantly smaller than the 14mm footprint of the original part. PCB layout modifications are required, including through-hole repositioning and potential mechanical mounting adjustments.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. PB-1420PL-03BMQ and AT-0927-TT-6-R are both ROHS3 compliant, matching the compliance status of the original PB-1420PL-03AQ.

Q: What is the operating temperature range for PB-1420PL-03BMQ?

A: The operating temperature range for PB-1420PL-03BMQ is not specified in the available technical data. The original part specifies -30°C ~ 70°C. Contact the manufacturer for confirmed temperature specifications if operation below 0°C is required.