2SB1386-P-TP Equivalent & Substitute Parts

Part Overview

The 2SB1386-P-TP is a Surface Mount PNP Bipolar Junction Transistor manufactured by Micro Commercial Co, rated for 20V collector-emitter breakdown voltage and 5A maximum collector current. This component is classified as Obsolete, which necessitates identification of equivalent substitute parts for ongoing production and maintenance applications. The transistor is housed in a SOT-89 package and delivers 500mW maximum power dissipation with a transition frequency of 120MHz.

Substiute Parts

2SB1386-P-TP

Micro Commercial CoIn Stock: 10922SB1386-P-TP Datasheet

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2DB1386Q-13

Diodes IncorporatedIn Stock: 20492DB1386Q-13 Datasheet

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2SB1302S-TD-E

onsemiIn Stock: 14962SB1302S-TD-E Datasheet

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2SB1386T100R

Rohm SemiconductorIn Stock: 167462SB1386T100R Datasheet

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PBSS302PX,115

Nexperia USA Inc.In Stock: 1284PBSS302PX,115 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the 2SB1386-P-TP is determined by strict electrical and mechanical compatibility across the following critical parameters:

Electrical Compatibility Criteria:

• Transistor Type: PNP configuration required
• Maximum Collector Current: 5A or greater
• Collector-Emitter Breakdown Voltage: 20V or greater
• Collector Cutoff Current: 500nA or less
• Operating Temperature: 150°C maximum junction temperature
• Package / Case: TO-243AA form factor

Mechanical Compatibility Criteria:

• Mounting Type: Surface Mount
• RoHS Compliance: ROHS3 Compliant

Substitute parts meeting these criteria are grouped into a single equivalency class. Variations in DC Current Gain (hFE), Power Dissipation, Transition Frequency, and Vce Saturation characteristics do not disqualify substitution when all primary electrical and mechanical parameters are satisfied.

Parameter Comparison

Engineering Selection Recommendations

Primary Substitute: 2DB1386Q-13

The 2DB1386Q-13 manufactured by Diodes Incorporated is the preferred substitute for the 2SB1386-P-TP. This part maintains electrical equivalence across all critical parameters while offering Active product status, ensuring long-term availability and supply chain stability. The 2DB1386Q-13 provides identical maximum collector current (5A), collector-emitter breakdown voltage (20V), and collector cutoff current (500nA) specifications. The increased power dissipation rating (1W versus 500mW) and higher DC current gain (120 versus 82) provide design margin without introducing incompatibility. Packaging remains TO-243AA SOT-89-3 surface mount, and RoHS3 compliance is maintained.

Secondary Substitute: PBSS302PX,115

The PBSS302PX,115 manufactured by Nexperia USA Inc. serves as an alternative substitute with Active product status. This part exceeds the 2SB1386-P-TP specifications in maximum collector current (5.1A), power dissipation (2.1W), and transition frequency (130MHz). The PBSS302PX,115 carries AEC-Q100 automotive qualification, providing additional reliability assurance. Collector-emitter breakdown voltage (20V) and operating temperature (150°C) remain equivalent. The lower collector cutoff current (100nA versus 500nA) represents an improvement in leakage characteristics.

Tertiary Substitute: 2SB1386T100R

The 2SB1386T100R manufactured by Rohm Semiconductor maintains electrical equivalence with the original part while offering higher power dissipation (2W) and superior DC current gain (180). This part is classified as Not For New Designs, limiting its suitability for new production applications despite technical compatibility.

Not Recommended: 2SB1302S-TD-E

The 2SB1302S-TD-E, while electrically compatible, carries Obsolete product status identical to the original part. This classification does not resolve the supply chain concern that necessitates substitution.

Frequently Asked Questions (FAQ)

Q: Can the 2DB1386Q-13 be used as a direct replacement for the 2SB1386-P-TP?

A: Yes. The 2DB1386Q-13 meets all electrical and mechanical compatibility requirements. Both parts are PNP transistors with identical maximum collector current (5A), collector-emitter breakdown voltage (20V), and operating temperature (150°C). Both are housed in TO-243AA surface mount packages and comply with ROHS3 standards. The 2DB1386Q-13 provides enhanced specifications in power dissipation and current gain without introducing incompatibility.

Q: What is the significance of the different supplier device packages (SOT-89 versus SOT-89-3)?

A: Both designations refer to the same physical TO-243AA package form factor. The SOT-89-3 designation used by Diodes Incorporated and the SOT-89 designation used by Micro Commercial Co describe identical three-lead surface mount packages. No physical or electrical differences exist between these package designations for the purposes of PCB assembly and circuit operation.

Q: Why is the PBSS302PX,115 rated for 5.1A maximum collector current when the original part is rated for 5A?

A: The PBSS302PX,115 is a higher-performance variant with enhanced current-handling capability. The 5.1A rating exceeds the 5A requirement of the original design, providing additional design margin. This increased rating does not create incompatibility; circuits designed for 5A operation function correctly with components rated for 5.1A maximum collector current.

Q: Are there any thermal management differences between the substitute parts?

A: The substitute parts offer varying maximum power dissipation ratings: 2DB1386Q-13 (1W), 2SB1302S-TD-E (1.3W), 2SB1386T100R (2W), and PBSS302PX,115 (2.1W), compared to the original 2SB1386-P-TP (500mW). Higher power ratings indicate improved thermal performance and reduced junction temperature rise under identical operating conditions. All parts maintain the same 150°C maximum operating temperature specification.

Q: What does "Not For New Designs" product status mean for the 2SB1386T100R?

A: This status indicates the manufacturer has discontinued active development and marketing of the part for new applications. While the part remains technically compatible and may be available from inventory, it is not recommended for incorporation into new product designs due to uncertain long-term availability and potential supply discontinuation.

Q: Is the 2SB1302S-TD-E a suitable substitute despite its Obsolete status?

A: The 2SB1302S-TD-E is electrically compatible with the 2SB1386-P-TP but carries identical Obsolete product status. Substituting one obsolete part for another does not resolve the underlying supply chain concern. The 2DB1386Q-13 or PBSS302PX,115, both with Active status, are preferred alternatives.

Q: What is the difference between the DC Current Gain (hFE) values across substitute parts?

A: DC Current Gain varies among substitutes: 2SB1386-P-TP (82), 2DB1386Q-13 (120), 2SB1302S-TD-E (100), 2SB1386T100R (180), and PBSS302PX,115 (200). Higher hFE values indicate greater amplification capability and reduced base current requirements for a given collector current. Circuits designed for the original part's hFE of 82 operate correctly with higher-gain substitutes, as the circuit typically operates in saturation or with base current limiting.

Q: Does the AEC-Q100 qualification of the PBSS302PX,115 affect its use in non-automotive applications?

A: No. AEC-Q100 qualification represents an additional reliability standard exceeding standard industrial requirements. Parts qualified to automotive standards function correctly in industrial and consumer applications. The qualification does not restrict use to automotive applications; it indicates the part meets more stringent reliability criteria.