DSA500100L Equivalent & Substitute Parts

Part Overview

The DSA500100L is a Panasonic Electronic Components PNP bipolar junction transistor (BJT) rated for 50 V collector-emitter breakdown voltage and 100 mA maximum collector current. This surface mount device in SMini3-F2-B packaging is designed for general-purpose switching and amplification applications. The part is discontinued at DiGi Electronics, necessitating identification of functionally equivalent alternatives from active product lines. Substitute parts must maintain electrical compatibility across voltage, current, and thermal specifications while accommodating package and mounting differences.

Substiute Parts

DSA500100L

Panasonic Electronic ComponentsIn Stock: 32227DSA500100L Datasheet

Current PartRFQ

2SA1576U3HZGT106R

Rohm SemiconductorIn Stock: 243002SA1576U3HZGT106R Datasheet

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2SA1576U3T106R

Rohm SemiconductorIn Stock: 258682SA1576U3T106R Datasheet

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2SA1576UBTLR

Rohm SemiconductorIn Stock: 41112SA1576UBTLR Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the DSA500100L is determined by strict equivalence across the following electrical and mechanical parameters:

Electrical Compatibility Criteria:

• Transistor polarity must remain PNP
• Collector-emitter breakdown voltage must equal or exceed 50 V
• Maximum collector current must equal or exceed 100 mA
• Maximum power dissipation must equal or exceed 150 mW
• Transition frequency must support the 150 MHz operational requirement
• Operating temperature range must accommodate 150°C junction temperature

Mechanical and Compliance Criteria:

• Surface mount mounting type required
• RoHS3 compliance mandatory
• Moisture sensitivity level 1 (unlimited) acceptable
• Package form factor must be compatible with board layout constraints

The three identified substitute parts from Rohm Semiconductor (2SA1576 series) meet or exceed all electrical parameters. Differences in package designation (UMT3 versus SMini3-F2-B, and UMT3F) represent physical form variations that require board-level design verification but do not affect electrical function.

Parameter Comparison

Engineering Selection Recommendations

2SA1576U3HZGT106R (Rohm Semiconductor) - Primary Substitute

This part is the preferred substitute for new designs. It maintains all electrical specifications above the DSA500100L minimum requirements and carries active product status. The device includes AEC-Q101 automotive qualification and REACH compliance documentation. The UMT3 package (SC-70, SOT-323) differs physically from the original SMini3-F2-B but provides equivalent electrical performance. Inventory availability is confirmed at 24,200 units.

2SA1576U3T106R (Rohm Semiconductor) - Secondary Substitute

This variant meets identical electrical specifications to the primary substitute and maintains active product status. The UMT3 package designation is equivalent to the AEC-Q101 qualified version. Inventory availability is 25,760 units. Selection between this part and the primary substitute depends on specific procurement and supply chain requirements.

2SA1576UBTLR (Rohm Semiconductor) - Legacy Substitute

This part carries "Not For New Designs" status and is not recommended for new product development. The UMT3F package matches the original SC-85 form factor of the DSA500100L, which may provide board-level compatibility advantages for retrofit applications. Inventory is limited to 4,100 units. Use of this part is restricted to legacy system maintenance only.

Frequently Asked Questions (FAQ)

Q: Can the 2SA1576 series parts directly replace the DSA500100L without circuit modification?

A: Electrical substitution is valid based on parameter equivalence. The 2SA1576 series meets or exceeds all voltage, current, power, and frequency specifications. Physical package differences (UMT3 versus SMini3-F2-B) require board layout verification to confirm footprint compatibility and thermal management adequacy.

Q: What is the difference between the three Rohm substitute options?

A: All three parts share identical electrical specifications. The primary differences are product status and package form. The 2SA1576U3HZGT106R and 2SA1576U3T106R are active products in UMT3 packaging (SC-70, SOT-323). The 2SA1576UBTLR is marked "Not For New Designs" and uses UMT3F packaging (SC-85), which physically matches the original DSA500100L package.

Q: Why does the 2SA1576 series show lower transition frequency (140 MHz) than the DSA500100L (150 MHz)?

A: The 140 MHz specification for the 2SA1576 series remains within acceptable operating parameters for applications designed around the DSA500100L. Transition frequency represents the frequency at which current gain drops to unity; applications operating below 140 MHz experience no functional degradation.

Q: Are there package compatibility concerns when switching from SMini3-F2-B to UMT3?

A: Package form factors differ between the original and substitute parts. The SMini3-F2-B and UMT3 packages have different physical dimensions and pin configurations. Board redesign or adapter solutions may be required. The 2SA1576UBTLR in UMT3F packaging provides closer physical compatibility with the original SC-85 form factor.

Q: What compliance certifications apply to the substitute parts?

A: All substitute parts are ROHS3 compliant and carry moisture sensitivity level 1 (unlimited). The 2SA1576U3HZGT106R includes AEC-Q101 automotive qualification and REACH compliance documentation. The other variants maintain ROHS3 compliance and REACH unaffected status.

Q: Is the higher current rating (150 mA) of the 2SA1576 series a concern?

A: No. Higher maximum current ratings provide design margin and do not create compatibility issues. The circuit will operate at the same collector current as designed for the DSA500100L. The increased rating simply indicates the substitute can handle higher current demands if future design modifications require it.