AT-1740 Equivalent & Substitute Parts

Part Overview

The AT-1740 is a piezoelectric buzzer transducer manufactured by PUI Audio, Inc., designed as an externally driven through-hole component with PC pin termination. This part is classified as obsolete, which necessitates identification of active equivalent models to maintain design continuity and ensure component availability for new production runs and field replacements.

Substiute Parts

AT-1740

PUI Audio, Inc.In Stock: 939AT-1740 Datasheet

Current PartRFQ

AT-1740-TT-R

PUI Audio, Inc.In Stock: 692AT-1740-TT-R Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

The AT-1740-TT-R qualifies as a direct substitute based on the following alignment of core parameters:

• Manufacturer: Identical (PUI Audio, Inc.)
• Series: Identical (AT series)
• Technology: Identical (Piezo)
• Driver Circuitry: Identical (Transducer, Externally Driven)
• Mounting Type: Identical (Through Hole)
• Termination: Identical (PC Pins)
• Product Status: Active (ensures ongoing availability)

The AT-1740-TT-R provides specified electrical and mechanical characteristics that maintain functional compatibility within the AT series piezoelectric buzzer platform.

Parameter Comparison

Engineering Selection Recommendations

The AT-1740-TT-R is the designated substitute for the obsolete AT-1740. Selection of this active component is based on:

• Product Status Alignment: The AT-1740-TT-R maintains active production status, ensuring component availability and supply chain continuity.
• Regulatory Compliance: The AT-1740-TT-R achieves ROHS3 compliance, meeting current environmental and regulatory requirements, whereas the original AT-1740 is RoHS non-compliant.
• Functional Compatibility: Both components share identical core specifications in technology, driver circuitry, mounting type, and termination method within the AT series platform.
• Specified Performance Characteristics: The AT-1740-TT-R provides documented electrical parameters (5V rated, 1 ~ 30V range, 4kHz frequency, 78dB SPL, 1mA supply current) and thermal operating range (-20°C ~ 70°C), enabling precise circuit design validation.

Frequently Asked Questions (FAQ)

Q: Why is the AT-1740 being replaced? A: The AT-1740 is classified as obsolete. The AT-1740-TT-R is the active equivalent within the PUI Audio AT series, ensuring continued component availability and regulatory compliance.

Q: Are the AT-1740 and AT-1740-TT-R mechanically compatible? A: Yes. Both components use through-hole mounting with PC pin termination, maintaining identical mechanical interfaces for PCB integration.

Q: What are the key electrical differences? A: The AT-1740-TT-R specifies a 5V rated voltage with a 1 ~ 30V operating range, 4kHz frequency, 1mA supply current, and 78dB SPL at 5V and 10cm distance. The original AT-1740 does not provide these specifications.

Q: Does the AT-1740-TT-R meet current regulatory standards? A: Yes. The AT-1740-TT-R is ROHS3 compliant and REACH unaffected, meeting current environmental regulations. The original AT-1740 is RoHS non-compliant.

Q: What packaging is available for the AT-1740-TT-R? A: The AT-1740-TT-R is supplied in tray packaging.

Q: Are there any thermal operating constraints? A: The AT-1740-TT-R operates within the temperature range of -20°C to 70°C, suitable for standard industrial and commercial applications.