BVSS84LT3G P-Channel MOSFET Equivalent & Substitute Parts

Part Overview

The BVSS84LT3G is a P-Channel MOSFET manufactured by onsemi, rated for 50V drain-to-source voltage with 130mA continuous drain current in a surface mount SOT-23-3 package. This device is classified as Obsolete, which necessitates identification of equivalent and substitute components for ongoing design support and procurement continuity. The part meets automotive-grade specifications with AEC-Q101 qualification and ROHS3 compliance.

Substiute Parts

BVSS84LT3G

onsemiIn Stock: 1087BVSS84LT3G Datasheet

Current PartRFQ

BVSS84LT1G

onsemiIn Stock: 30365BVSS84LT1G Datasheet

DirectRFQ

BSS84LT7G

onsemiIn Stock: 7072BSS84LT7G Datasheet

Parametric EquivalentRFQ

SBSS84LT1G

onsemiIn Stock: 533306SBSS84LT1G Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the BVSS84LT3G is determined by strict equivalence across the following electrical and mechanical parameters:

Critical Substitution Parameters:

• FET Type: P-Channel (required for circuit polarity compatibility)
• Drain to Source Voltage (Vdss): 50V (minimum voltage rating for application safety)
• Continuous Drain Current (Id): 130mA (minimum current handling capacity)
• Rds On (Max): 10 Ohm @ 100mA, 5V (on-state resistance for power efficiency)
• Gate-Source Threshold Voltage (Vgs(th)): 2V @ 250µA (gate drive compatibility)
• Power Dissipation: 225mW (thermal management requirement)
• Operating Temperature: -55°C to 150°C (environmental operating range)
• Package: SOT-23-3 (TO-236) (physical and electrical footprint compatibility)
• Grade: Automotive (application-level requirement)
• Qualification: AEC-Q101 (reliability and quality standard)

All identified substitute parts maintain identical electrical specifications and package configuration, ensuring direct functional replacement without circuit redesign.

Parameter Comparison

Engineering Selection Recommendations

Primary Recommendation: BVSS84LT1G

The BVSS84LT1G is the preferred substitute for the obsolete BVSS84LT3G. This part maintains identical electrical specifications and automotive-grade AEC-Q101 qualification. The BVSS84LT1G carries Active product status, ensuring long-term availability and supply chain continuity. Packaging is supplied in Tape & Reel (TR) format, suitable for automated assembly processes.

Secondary Recommendation: BSS84LT7G

The BSS84LT7G provides parametric equivalence with Active product status. This part is also supplied in Tape & Reel (TR) format and meets all automotive and compliance requirements. Selection of this part is appropriate when BVSS84LT1G availability is constrained.

Alternative: SBSS84LT1G

The SBSS84LT1G offers identical electrical performance and is available in Cut Tape (CT) and Digi-Reel® packaging formats. However, this part carries Obsolete product status. Use of SBSS84LT1G is limited to applications where existing inventory must be consumed or where specific packaging requirements mandate its selection. For new designs and long-term production, Active-status alternatives are preferred.

Compliance and Certification:

All substitute parts maintain ROHS3 compliance, AEC-Q101 automotive qualification, and Moisture Sensitivity Level 1 (Unlimited). No additional qualification or testing is required for direct substitution in automotive applications.

Frequently Asked Questions (FAQ)

Q: Can BVSS84LT1G be used as a direct replacement for BVSS84LT3G?

A: Yes. The BVSS84LT1G is a direct functional replacement. All electrical parameters, package configuration, and automotive qualifications are identical. The primary difference is product status: BVSS84LT1G is Active, while BVSS84LT3G is Obsolete.

Q: What is the difference between BVSS84LT1G and BSS84LT7G?

A: Both parts are parametrically equivalent with identical electrical specifications and package type (SOT-23-3). The difference lies in the base product number designation (BVSS84 versus BSS84) and internal manufacturing process variants. Both are Active products suitable for new designs.

Q: Are there packaging differences between the substitute parts?

A: Yes. BVSS84LT1G and BSS84LT7G are supplied in Tape & Reel (TR) format for automated assembly. SBSS84LT1G is supplied in Cut Tape (CT) and Digi-Reel® format. Selection depends on assembly equipment compatibility and procurement requirements. All three parts use the same SOT-23-3 physical footprint.

Q: Is the SBSS84LT1G suitable for new production designs?

A: The SBSS84LT1G is parametrically equivalent but carries Obsolete product status. For new production designs, BVSS84LT1G or BSS84LT7G are recommended due to their Active status and assured long-term availability.

Q: Do these substitute parts require any circuit modifications?

A: No. All substitute parts maintain identical electrical specifications, gate drive requirements, and thermal characteristics. Direct pin-for-pin replacement is possible without circuit redesign.

Q: Are all substitute parts automotive-grade?

A: Yes. All identified substitute parts carry Automotive grade classification and AEC-Q101 qualification, meeting the same reliability and quality standards as the original BVSS84LT3G.

Q: What is the moisture sensitivity level for these parts?

A: All parts, including the original and substitutes, have Moisture Sensitivity Level 1 (Unlimited), indicating no moisture-related storage or handling restrictions.