2SA1576A-S-AP Equivalent & Substitute Parts

Part Overview

The 2SA1576A-S-AP is a PNP bipolar junction transistor manufactured by Micro Commercial Co, designed for surface mount applications in the SOT-323 package. This component operates at 50 V collector-emitter breakdown voltage with a maximum collector current of 150 mA and 200 mW power dissipation. The device is classified as obsolete, necessitating identification of active equivalent parts for new designs and ongoing production requirements. Substitute parts must maintain electrical and mechanical compatibility while offering active product status and continued availability.

Substiute Parts

2SA1576A-S-AP

Micro Commercial CoIn Stock: 8292SA1576A-S-AP Datasheet

Current PartRFQ

2PA1576S,115

Nexperia USA Inc.In Stock: 13142PA1576S,115 Datasheet

DirectRFQ

2SA1586-Y,LF

Toshiba Semiconductor and StorageIn Stock: 333392SA1586-Y,LF Datasheet

SimilarRFQ

2SA2029T2LQ

Rohm SemiconductorIn Stock: 10001772SA2029T2LQ Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 2SA1576A-S-AP is determined by strict equivalence in the following electrical parameters: transistor type (PNP), maximum collector-emitter breakdown voltage (50 V), maximum collector current (150 mA), and surface mount packaging (SOT-323 or SC-70). Secondary parameters including transition frequency, power dissipation, and operating temperature range are evaluated to confirm functional compatibility within the specified application envelope.

The substitute parts are grouped into two categories:

Direct Electrical Equivalent (2PA1576S,115): Maintains identical electrical specifications across all primary parameters, including 50 V breakdown voltage, 150 mA collector current, 200 mW power dissipation, and 100 MHz transition frequency. This part is manufactured by Nexperia USA Inc. and carries active product status with AEC-Q101 automotive qualification.

Similar Electrical Equivalent (2SA1586-Y,LF and 2SA2029T2LQ): These parts maintain the core electrical requirements (50 V, 150 mA, PNP type) but exhibit variations in secondary parameters. The 2SA1586-Y,LF operates at reduced power dissipation (100 mW) and transition frequency (80 MHz). The 2SA2029T2LQ operates at higher transition frequency (140 MHz) but reduced power dissipation (150 mW). Both are manufactured by active suppliers with ROHS3 compliance.

Parameter Comparison

Engineering Selection Recommendations

2PA1576S,115 (Nexperia USA Inc.): This part is the primary substitute for the 2SA1576A-S-AP. It maintains complete electrical equivalence across all specified parameters, including 50 V breakdown voltage, 150 mA collector current, 200 mW power dissipation, and 100 MHz transition frequency. The part carries active product status with AEC-Q101 automotive qualification and ROHS3 compliance. Packaging is SOT-323 in Tape & Reel format. This substitute is suitable for direct replacement in all applications where the original part was specified.

2SA1586-Y,LF (Toshiba Semiconductor and Storage): This part is a similar electrical equivalent suitable for applications where reduced power dissipation (100 mW) and lower transition frequency (80 MHz) are acceptable. The part maintains the 50 V breakdown voltage and 150 mA collector current specifications. Operating temperature is limited to 125°C compared to 150°C for the main part. Packaging is SC-70 in Tape & Reel format. This substitute is appropriate for low-power signal switching applications where the reduced power rating does not constrain circuit performance.

2SA2029T2LQ (Rohm Semiconductor): This part is a similar electrical equivalent suitable for applications requiring higher transition frequency (140 MHz) performance. The part maintains the 50 V breakdown voltage and 150 mA collector current specifications but operates at reduced power dissipation (150 mW). Operating temperature is maintained at 150°C. Packaging is VMT3 (SOT-723) in Cut Tape and Digi-Reel format. This substitute is appropriate for higher-frequency signal processing applications where the enhanced transition frequency provides performance benefits.

Frequently Asked Questions (FAQ)

Q: Can the 2PA1576S,115 be used as a direct replacement for the 2SA1576A-S-AP?

A: Yes. The 2PA1576S,115 maintains identical electrical specifications across all primary parameters: 50 V collector-emitter breakdown voltage, 150 mA maximum collector current, 200 mW power dissipation, and 100 MHz transition frequency. The part is manufactured by Nexperia USA Inc. and carries active product status with AEC-Q101 automotive qualification. Packaging is SOT-323, which is mechanically compatible with the original part.

Q: What are the key differences between the 2SA1586-Y,LF and the original 2SA1576A-S-AP?

A: The 2SA1586-Y,LF differs in three secondary parameters: power dissipation is reduced to 100 mW (from 200 mW), transition frequency is reduced to 80 MHz (from 100 MHz), and maximum operating temperature is 125°C (from 150°C). The core electrical specifications remain equivalent: 50 V breakdown voltage and 150 mA collector current. The package is SC-70 instead of SOT-323. This part is suitable for applications where the reduced power rating and lower frequency response do not constrain performance.

Q: Is the 2SA2029T2LQ compatible with the original 2SA1576A-S-AP in terms of package footprint?

A: No. The 2SA2029T2LQ uses the VMT3 package (SOT-723), which has a different footprint than the SOT-323 package of the original part. However, the electrical specifications are compatible: 50 V breakdown voltage, 150 mA collector current, and 100 nA collector cutoff current. This part is suitable for applications where the package footprint can be accommodated or where higher transition frequency (140 MHz) provides performance benefits.

Q: What is the significance of the AEC-Q101 qualification on the 2PA1576S,115?

A: AEC-Q101 qualification indicates that the 2PA1576S,115 meets automotive-grade reliability and performance standards established by the Automotive Electronics Council. This qualification is relevant for applications requiring automotive-grade components but is not mandatory for general industrial or consumer applications. The original 2SA1576A-S-AP does not carry this qualification.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All substitute parts listed (2PA1576S,115, 2SA1586-Y,LF, and 2SA2029T2LQ) are ROHS3 compliant, matching the compliance status of the original 2SA1576A-S-AP. All parts also carry Moisture Sensitivity Level 1 (Unlimited), indicating no special moisture handling requirements during storage or assembly.

Q: Which substitute part should be selected for a new design?

A: The 2PA1576S,115 is the recommended substitute for new designs. It provides complete electrical equivalence to the original part, maintains active product status, carries automotive-grade qualification, and is available in the same SOT-323 package. This part eliminates the need for circuit redesign or layout modification.

Q: Can the 2SA1586-Y,LF be used in high-temperature applications?

A: The 2SA1586-Y,LF is rated for a maximum operating temperature of 125°C, which is lower than the original part's 150°C rating. Applications requiring operation at temperatures above 125°C should use either the 2PA1576S,115 or 2SA2029T2LQ, both of which are rated to 150°C.