BSP030,115 N-Channel MOSFET 30V 10A Equivalent & Substitute Parts

Part Overview

The BSP030,115 is an N-Channel MOSFET manufactured by Nexperia USA Inc., designed for surface mount applications in the SOT-223 package. This device operates at 30V drain-to-source voltage with a continuous drain current rating of 10A at 25°C and maximum power dissipation of 8.3W. The BSP030,115 is classified as an obsolete product, necessitating identification of active equivalent components for new designs and ongoing production requirements. Substitute parts must maintain electrical compatibility across voltage ratings, current handling capability, and thermal characteristics while conforming to the same package footprint and mounting specifications.

Substiute Parts

BSP030,115

Nexperia USA Inc.In Stock: 894BSP030,115 Datasheet

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STN4NF03L

STMicroelectronicsIn Stock: 77850STN4NF03L Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the BSP030,115 is determined by the following critical electrical and mechanical parameters:

Voltage Rating Compatibility: Substitute parts must maintain a Drain to Source Voltage (Vdss) rating of 30V or greater to ensure safe operation across the full voltage range of the original design.

Current Handling: The continuous drain current (Id) at 25°C must meet or exceed the 10A requirement of the BSP030,115 to support equivalent load conditions without thermal derating.

On-State Resistance (Rds On): The maximum on-state resistance must not exceed the specified 30 mOhm @ 5A, 10V to maintain comparable power dissipation and thermal performance.

Package Footprint: Substitute parts must utilize the SOT-223 surface mount package (TO-261-4, TO-261AA case designation) to ensure direct PCB compatibility without layout modifications.

Compliance Standards: All substitute parts must maintain ROHS3 compliance and REACH unaffected status to satisfy regulatory requirements equivalent to the original component.

Product Status: Active product status is required for substitute parts to ensure long-term availability and supply chain continuity.

Parameter Comparison

Engineering Selection Recommendations

The STN4NF03L from STMicroelectronics is identified as an active substitute for the obsolete BSP030,115. Both devices share identical Drain to Source Voltage ratings (30V) and SOT-223 package specifications, ensuring voltage compatibility and direct PCB footprint compatibility.

Current Rating Consideration: The STN4NF03L provides a continuous drain current of 6.5A compared to the BSP030,115's 10A rating. This represents a 35% reduction in current capacity. Substitution is applicable only in applications where the actual operating current does not exceed 6.5A at 25°C.

Thermal Performance: The STN4NF03L exhibits a maximum power dissipation of 3.3W versus the BSP030,115's 8.3W. Applications requiring sustained power dissipation above 3.3W necessitate thermal management verification or alternative component selection.

On-State Resistance: The STN4NF03L demonstrates higher on-state resistance (50 mOhm @ 2A, 10V) relative to the BSP030,115 (30 mOhm @ 5A, 10V), resulting in increased conduction losses. This parameter must be evaluated against power budget constraints.

Temperature Range: The STN4NF03L operates from -55°C to 150°C, compared to the BSP030,115's -65°C to 150°C range. Applications requiring operation below -55°C require alternative component selection.

Regulatory Compliance: Both devices maintain ROHS3 compliance and REACH unaffected status, satisfying equivalent regulatory requirements. The STN4NF03L's active product status ensures continued availability and supply chain support.

Frequently Asked Questions (FAQ)

Q: Can the STN4NF03L directly replace the BSP030,115 in all applications?

A: Direct replacement is limited to applications where the continuous drain current does not exceed 6.5A and sustained power dissipation remains below 3.3W. Current and thermal requirements must be verified against the specific application circuit.

Q: What is the impact of the higher on-state resistance in the STN4NF03L?

A: The STN4NF03L's 50 mOhm on-state resistance (versus 30 mOhm in the BSP030,115) increases conduction losses proportionally to the square of the drain current. Applications operating at maximum current will experience elevated power dissipation and require thermal analysis.

Q: Are there package compatibility concerns between these devices?

A: Both devices utilize the SOT-223 surface mount package with TO-261-4 and TO-261AA case designations. PCB footprints are directly compatible without layout modifications.

Q: Does the lower gate threshold voltage of the STN4NF03L affect circuit operation?

A: The STN4NF03L exhibits a gate threshold voltage of 1V @ 250µA compared to the BSP030,115's 2.8V @ 1mA. This lower threshold may result in faster switching response and reduced gate drive requirements. Gate drive circuits must be verified for compatibility with the lower threshold specification.

Q: What is the significance of the reduced gate charge in the STN4NF03L?

A: The STN4NF03L demonstrates significantly lower gate charge (9 nC @ 10V versus 40 nC @ 10V), reducing switching losses and gate drive power requirements. This characteristic may improve overall circuit efficiency in switching applications.

Q: Is the narrower operating temperature range of the STN4NF03L a limiting factor?

A: The STN4NF03L operates from -55°C to 150°C, excluding the -65°C to -55°C range supported by the BSP030,115. Applications requiring operation below -55°C must select alternative components.

Q: What compliance certifications apply to both devices?

A: Both the BSP030,115 and STN4NF03L maintain ROHS3 compliance and REACH unaffected status. No additional compliance verification is required for regulatory equivalence.