BSC0803LSATMA1 Equivalent & Substitute Parts

Part Overview

The BSC0803LSATMA1 is an N-Channel MOSFET manufactured by Infineon Technologies, rated for 100V drain-to-source voltage with continuous drain current of 10A at Ta and 44A at Tc. This device is part of the OptiMOS™ 5 series and is housed in an 8-PowerTDFN surface mount package (PG-TDSON-8-6).

The BSC0803LSATMA1 carries an Obsolete product status. Identification of equivalent and substitute parts is necessary to maintain design continuity and ensure component availability for ongoing production and maintenance applications.

Substiute Parts

BSC0803LSATMA1

Infineon TechnologiesIn Stock: 729BSC0803LSATMA1 Datasheet

Current PartRFQ

ISC0803NLSATMA1

Infineon TechnologiesIn Stock: 3244ISC0803NLSATMA1 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the BSC0803LSATMA1 is determined by electrical and mechanical compatibility across the following critical parameters:

Electrical Compatibility Criteria:

• Drain-to-Source Voltage (Vdss): Must equal or exceed 100V
• Continuous Drain Current: Must support the application's current requirements at both Ta and Tc conditions
• Gate Threshold Voltage (Vgs(th)): Must remain within ±20V maximum gate voltage specification
• On-State Resistance (RDS(on)): Must not exceed application thermal and power dissipation limits
• Gate Charge (Qg): Must be compatible with gate drive circuitry
• Input Capacitance (Ciss): Must be compatible with switching frequency and drive requirements
• Operating Temperature Range: Must encompass -55°C to 150°C

Mechanical Compatibility Criteria:

• Package Type: Surface mount 8-PowerTDFN footprint
• Mounting Type: Surface mount configuration
• Pin Configuration: Compatible with PG-TDSON-8 or PG-TDSON-8-6 packages

Compliance Criteria:

• RoHS3 Compliance
• REACH Status: REACH Unaffected
• Moisture Sensitivity Level (MSL): 1 (Unlimited)

The substitute part ISC0803NLSATMA1 meets these criteria with the following considerations: identical Vdss rating, reduced continuous drain current (8.8A at Ta, 37A at Tc), increased RDS(on) (16.9mOhm at 20A, 10V), and reduced power dissipation capability (43W at Tc versus 52W at Tc for the main part).

Parameter Comparison

Engineering Selection Recommendations

BSC0803LSATMA1 (Main Part): The BSC0803LSATMA1 is classified as Obsolete. This part carries full RoHS3 compliance, REACH Unaffected status, and MSL 1 rating. Current inventory of 662 pieces is available as new original stock. This part is suitable for replacement and repair of existing systems where the specific electrical and thermal characteristics are required.

ISC0803NLSATMA1 (Substitute Part): The ISC0803NLSATMA1 is classified as Not For New Designs. This part maintains identical voltage rating (100V Vdss) and operating temperature range (-55°C to 150°C). It carries full RoHS3 compliance, REACH Unaffected status, and MSL 1 rating. Current inventory of 3170 pieces is available as new original stock in Tape & Reel packaging.

Substitution Applicability: The ISC0803NLSATMA1 is electrically compatible with the BSC0803LSATMA1 where application current requirements do not exceed 8.8A at Ta or 37A at Tc. The substitute part exhibits higher on-state resistance (16.9mOhm versus 14.6mOhm) and reduced power dissipation capability at Tc (43W versus 52W). Gate charge is increased (15nC versus 10nC), and input capacitance is reduced (1000pF versus 1300pF). Both parts share identical gate threshold voltage specifications and maximum gate voltage ratings.

Package footprint compatibility exists between PG-TDSON-8-6 and PG-TDSON-8 configurations for surface mount applications, though PCB layout verification is required.

Frequently Asked Questions (FAQ)

Q: Can the ISC0803NLSATMA1 directly replace the BSC0803LSATMA1 in all applications?

A: Direct replacement is limited by electrical performance differences. The substitute part supports lower continuous drain current (8.8A at Ta versus 10A at Ta; 37A at Tc versus 44A at Tc) and exhibits higher on-state resistance. Substitution is valid only where application current requirements remain within the ISC0803NLSATMA1 specifications and thermal dissipation does not exceed 43W at Tc.

Q: What are the package differences between these two parts?

A: The BSC0803LSATMA1 uses PG-TDSON-8-6 packaging, while the ISC0803NLSATMA1 uses PG-TDSON-8 packaging. Both are 8-PowerTDFN surface mount packages. PCB footprint compatibility must be verified during design integration, as minor dimensional variations may exist between these package variants.

Q: Are both parts RoHS3 compliant?

A: Yes. Both the BSC0803LSATMA1 and ISC0803NLSATMA1 are RoHS3 compliant, REACH Unaffected, and carry MSL 1 (Unlimited) moisture sensitivity ratings.

Q: What is the significance of the product status classifications?

A: The BSC0803LSATMA1 is classified as Obsolete, indicating it is no longer in active production. The ISC0803NLSATMA1 is classified as Not For New Designs, indicating it remains available but is not recommended for new product development. Both parts are available from current inventory for replacement and maintenance applications.

Q: How do gate charge differences affect circuit design?

A: The ISC0803NLSATMA1 exhibits higher gate charge (15nC at 10V versus 10nC at 4.5V for the main part). This difference affects gate drive circuit design, switching speed, and power consumption in the gate drive stage. Gate drive circuitry must be verified for compatibility with the increased charge requirement.

Q: What thermal considerations apply to substitution?

A: The ISC0803NLSATMA1 supports maximum power dissipation of 43W at Tc, compared to 52W at Tc for the BSC0803LSATMA1. Applications requiring thermal dissipation above 43W at Tc cannot use the substitute part. Additionally, the higher on-state resistance (16.9mOhm versus 14.6mOhm) generates increased heat at equivalent current levels.