TOM-1545P Equivalent & Substitute Parts

Part Overview

The TOM-1545P is an analog electret condenser microphone manufactured by PUI Audio, Inc., designed for omnidirectional audio capture with a sensitivity of -45dB ±3dB. This component operates within a 2V to 10V supply range and features PC pin termination in a compact 0.157" diameter circular package.

The TOM-1545P is classified as obsolete. Locating equivalent substitute parts is necessary to maintain design continuity, ensure supply chain reliability, and support ongoing production or repair requirements for systems utilizing this microphone specification.

Substiute Parts

TOM-1545P

PUI Audio, Inc.In Stock: 750TOM-1545P Datasheet

Current PartRFQ

TOM-1545P-R

PUI Audio, Inc.In Stock: 32951TOM-1545P-R Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the TOM-1545P are identified based on strict electrical and mechanical parameter matching. The following criteria determine substitution eligibility:

Critical Matching Parameters:

• Microphone type: Electret Condenser
• Output type: Analog
• Directional pattern: Omnidirectional
• Sensitivity: -45dB ±3dB
• S/N Ratio: 60dB
• Impedance: 2.2 kOhms
• Voltage range: 2V ~ 10V
• Current supply: 500 µA
• Termination: PC Pins
• Physical dimensions: 0.157" Dia (4.00mm), Height 0.067" (1.70mm)
• Shape: Circular

The TOM-1545P-R meets all electrical and mechanical specifications required for direct substitution. This part maintains identical performance characteristics while offering improved product status and compliance certifications.

Parameter Comparison

Engineering Selection Recommendations

The TOM-1545P-R is the direct substitute for the obsolete TOM-1545P. Both parts share identical electrical performance specifications and mechanical dimensions, ensuring functional compatibility in existing circuit designs.

The TOM-1545P-R offers two significant advantages over the main part:

Product Status: The TOM-1545P-R maintains active production status, ensuring long-term availability and supply chain continuity.

Compliance: The TOM-1545P-R is ROHS3 compliant, meeting current environmental and regulatory requirements. The original TOM-1545P is RoHS non-compliant, which may present restrictions in certain applications or markets.

Both parts maintain identical REACH and ECCN classifications (REACH Unaffected, EAR99), ensuring no additional regulatory complications during substitution.

Frequently Asked Questions (FAQ)

Q: Can the TOM-1545P-R be used as a direct replacement for the TOM-1545P?

A: Yes. The TOM-1545P-R meets all electrical and mechanical specifications of the TOM-1545P, including sensitivity, impedance, voltage range, current supply, termination type, and physical dimensions. No circuit modifications are required.

Q: What is the difference between TOM-1545P and TOM-1545P-R?

A: The primary differences are product status and compliance. The TOM-1545P is obsolete and RoHS non-compliant. The TOM-1545P-R is in active production and ROHS3 compliant. The TOM-1545P-R also specifies a frequency range of 100 Hz ~ 10 kHz, which was not documented for the original part.

Q: Are there packaging differences between these parts?

A: Yes. The TOM-1545P packaging is listed as unspecified (-), while the TOM-1545P-R is supplied in Bulk packaging. Verify bulk packaging compatibility with your assembly requirements.

Q: Does the TOM-1545P-R have the same PC pin termination?

A: Yes. Both parts feature identical PC pin termination, ensuring compatibility with existing PCB designs and connector interfaces.

Q: What compliance certifications apply to the TOM-1545P-R?

A: The TOM-1545P-R is ROHS3 compliant and REACH unaffected. It carries the same ECCN classification (EAR99) as the original part.