2SA1534ASA Equivalent & Substitute Parts

Part Overview

The 2SA1534ASA is a PNP bipolar junction transistor manufactured by Panasonic Electronic Components, rated for 50 V collector-emitter breakdown voltage and 1 A maximum collector current. This device is packaged in a TO-92NL-A1 through-hole configuration and is designed for general-purpose switching and amplification applications with a maximum power dissipation of 1 W.

The 2SA1534ASA is classified as an obsolete product. Locating equivalent substitute parts is necessary to support ongoing maintenance, repair, and new design requirements where this transistor is specified or where existing inventory is depleted.

Substiute Parts

2SA1534ASA

Panasonic Electronic ComponentsIn Stock: 7802SA1534ASA Datasheet

Current PartRFQ

ZTX553

Diodes IncorporatedIn Stock: 99204ZTX553 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the 2SA1534ASA are identified based on the following critical electrical and mechanical parameters:

Matching Criteria:

• Transistor type: PNP configuration
• Maximum collector current: 1 A or greater
• Through-hole mounting technology
• TO-92 compatible package form factor
• Collector-emitter cutoff current: 100 nA or less
• Moisture sensitivity level: 1 (Unlimited)
• Power dissipation: 1 W or greater

Substitution Logic: The ZTX553 qualifies as a substitute because it maintains the same PNP transistor type, identical maximum collector current rating (1 A), compatible through-hole mounting, and TO-92 compatible package geometry. Both devices share the same collector cutoff current specification (100 nA) and moisture sensitivity classification. The ZTX553 provides higher voltage capability (100 V versus 50 V) and extended operating temperature range, making it suitable for applications where the 2SA1534ASA was originally specified.

Parameter Comparison

Engineering Selection Recommendations

The ZTX553 is an active product manufactured by Diodes Incorporated and is suitable for applications where the obsolete 2SA1534ASA was previously specified. The ZTX553 maintains electrical compatibility through identical collector current and cutoff current ratings, and provides enhanced voltage capability at 100 V compared to the 2SA1534ASA at 50 V. The ZTX553 is ROHS3 compliant and REACH unaffected, meeting modern regulatory requirements.

The ZTX553 operates across an extended temperature range of −55°C to 200°C, compared to the 2SA1534ASA maximum of 150°C, providing greater thermal margin in demanding applications. Both devices share identical moisture sensitivity classification and through-hole mounting technology, ensuring mechanical compatibility with existing printed circuit board layouts designed for TO-92 package form factors.

Selection of the ZTX553 as a substitute is appropriate for new designs and replacement applications where the 2SA1534ASA is no longer available. The higher voltage rating and active product status of the ZTX553 provide long-term supply assurance and regulatory compliance.

Frequently Asked Questions (FAQ)

Q: Can the ZTX553 be used as a direct replacement for the 2SA1534ASA in existing circuit designs?

A: The ZTX553 is mechanically and electrically compatible with the 2SA1534ASA for applications operating at or below 50 V collector-emitter voltage. Both devices are PNP transistors with identical 1 A maximum collector current ratings and TO-92 compatible through-hole packages. The ZTX553 higher voltage rating (100 V) does not prevent substitution in circuits designed for the 2SA1534ASA.

Q: What are the key differences between these two transistors?

A: The primary differences are: (1) The ZTX553 has a higher collector-emitter breakdown voltage of 100 V versus 50 V for the 2SA1534ASA; (2) The ZTX553 operates across a wider temperature range (−55°C to 200°C) compared to the 2SA1534ASA (up to 150°C); (3) The ZTX553 is an active product with ROHS3 compliance, while the 2SA1534ASA is obsolete; (4) The ZTX553 has lower saturation voltage (250 mV) compared to the 2SA1534ASA (400 mV) at specified test conditions.

Q: Are there package compatibility concerns when substituting the ZTX553 for the 2SA1534ASA?

A: No. Both devices use TO-92 compatible through-hole packages. The ZTX553 is supplied in an E-Line-3 package, which is physically and functionally compatible with TO-92-3 package footprints on printed circuit boards. Pin assignments and lead spacing are identical, allowing direct mechanical substitution without circuit board redesign.

Q: What is the moisture sensitivity classification for both devices?

A: Both the 2SA1534ASA and ZTX553 are classified as Moisture Sensitivity Level 1 (Unlimited), indicating no moisture sensitivity restrictions. These devices do not require special moisture control during storage, handling, or assembly processes.

Q: Does the ZTX553 meet current regulatory compliance standards?

A: Yes. The ZTX553 is ROHS3 compliant and REACH unaffected. The 2SA1534ASA compliance status is not specified in the provided data. The ZTX553 is suitable for applications requiring adherence to modern environmental and regulatory standards.