A8293SESTR-T Equivalent & Substitute Parts

Part Overview

The A8293SESTR-T is a Power Management IC (PMIC) designed for Converter, Analog and Digital Satellite STB Receivers/SatTV applications. This part functions as a voltage regulator with a single output, housed in a 20-QFN-EP package. The A8293SESTR-T is currently classified as Obsolete, making identification of equivalent and substitute parts essential for ongoing system support and new design considerations.

Substiute Parts

A8293SESTR-T

Allegro MicroSystemsIn Stock: 7973A8293SESTR-T Datasheet

Current PartRFQ

A8300SESTR-T

Allegro MicroSystemsIn Stock: 1587A8300SESTR-T Datasheet

MFR RecommendedRFQ

A8304SESTR-T

Allegro MicroSystemsIn Stock: 27772A8304SESTR-T Datasheet

MFR RecommendedRFQ

A8305SESTR-T

Allegro MicroSystemsIn Stock: 18639A8305SESTR-T Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the A8293SESTR-T are identified based on the following criteria:

• Manufacturer: Allegro MicroSystems (same manufacturer ensures design compatibility and support continuity)
• Category: Power Management (PMIC) with voltage regulation function
• Mounting Type: Surface Mount
• Operating Temperature Range: -20°C ~ 85°C (matching thermal specifications)
• Number of Outputs: 1 (single output configuration)
• RoHS Compliance: ROHS3 Compliant (regulatory alignment)
• Application Domain: Converter and voltage regulation for satellite/LNB systems

The substitute parts listed (A8300SESTR-T, A8304SESTR-T, A8305SESTR-T) share the core functional category and manufacturer lineage. However, differences exist in package size, pin count, input/output voltage ranges, and product status. These variations require engineering evaluation based on specific system requirements.

Parameter Comparison

Engineering Selection Recommendations

A8300SESTR-T: This part is Active and offers improved MSL rating (1, Unlimited vs. 2, 1 Year). However, it uses a 24-QFN package with increased pin count compared to the A8293SESTR-T's 20-QFN package. Input and output voltage specifications are not provided, requiring datasheet verification for voltage compatibility. This part is suitable for new designs where package size constraints permit the larger footprint.

A8304SESTR-T: This part is Active with the highest inventory availability (27,729 pcs). It operates within a compatible input voltage range (10V ~ 16V) and output voltage range (13.3V ~ 19.7V) that overlaps with the A8293SESTR-T. The 16-QFN package is smaller than the original, reducing PCB footprint. MSL rating is 3 (168 Hours), which is more restrictive than the original. This part is suitable for applications where the smaller package footprint is advantageous and MSL handling procedures are adjusted accordingly.

A8305SESTR-T: This part is Active with strong inventory (18,600 pcs) and superior MSL rating (1, Unlimited). Detailed electrical specifications are not provided in the available data. This part requires full datasheet review before substitution consideration.

All substitute parts maintain ROHS3 compliance and EAR99 classification, ensuring regulatory continuity.

Frequently Asked Questions (FAQ)

Q: Can the A8293SESTR-T be directly replaced with any of these substitutes?

A: Direct replacement depends on package compatibility and electrical specifications. The A8293SESTR-T uses a 20-QFN package; the A8300SESTR-T uses 24-QFN, and the A8304SESTR-T uses 16-QFN. PCB layout modifications are required for any package change. Voltage specifications must be verified against system requirements.

Q: What is the significance of the Obsolete status?

A: The A8293SESTR-T is classified as Obsolete, meaning Allegro MicroSystems no longer manufactures this part. Existing inventory may be available through authorized distributors, but long-term supply cannot be guaranteed. For new designs or ongoing production, selection of an Active substitute part is recommended.

Q: How do MSL ratings affect part selection?

A: MSL (Moisture Sensitivity Level) ratings indicate the maximum time a part can be exposed to ambient conditions before soldering. The A8293SESTR-T has MSL 2 (1 Year); A8300SESTR-T has MSL 1 (Unlimited); A8304SESTR-T has MSL 3 (168 Hours); A8305SESTR-T has MSL 1 (Unlimited). Lower MSL numbers provide longer shelf life and greater handling flexibility. Higher MSL numbers (like 3) require stricter moisture control and shorter storage windows.

Q: Are input and output voltage ranges compatible between parts?

A: The A8293SESTR-T specifies 9V ~ 16V input and 12.71V ~ 19.04V output. The A8304SESTR-T specifies 10V ~ 16V input and 13.3V ~ 19.7V output, showing partial overlap. The A8300SESTR-T and A8305SESTR-T do not provide voltage specifications in the available data. Detailed datasheets must be consulted to confirm voltage compatibility for specific applications.

Q: What packaging considerations apply to substitution?

A: The A8293SESTR-T uses 20-QFN-EP (4x4mm); A8300SESTR-T uses 24-QFN (4x4mm); A8304SESTR-T uses 16-QFN/MLP (3x3mm); A8305SESTR-T uses 20-QFN. Package changes require PCB redesign, including footprint modification, trace routing adjustments, and thermal management evaluation. Pin-to-pin compatibility cannot be assumed across different package types.