BSC050N03LSGATMA1 Equivalent & Substitute Parts

Part Overview

The BSC050N03LSGATMA1 is an N-Channel 30V MOSFET manufactured by Infineon Technologies, part of the OptiMOS™ series. This surface mount device delivers 18A continuous drain current at 25°C (Ta) and 80A at case temperature (Tc), with a maximum on-resistance of 5mOhm at 30A and 10V gate-source voltage. The device operates across a temperature range of -55°C to 150°C and is housed in an 8-PowerTDFN package (PG-TDSON-8-5). The part is currently Active in production status and RoHS3 compliant with MSL 1 (Unlimited moisture sensitivity level). Substitute parts are identified when equivalent electrical performance can be achieved within the specified parameter tolerances while maintaining compatibility with the application's thermal and packaging requirements.

Key Parameters

Parameter	Value	Unit
Drain to Source Voltage (Vdss)	30	V
Continuous Drain Current @ 25°C (Ta)	18	A
Continuous Drain Current @ Case Temp (Tc)	80	A
On-Resistance (Rds On Max) @ 30A, 10V	5	mOhm
Gate Threshold Voltage (Vgs(th)) @ 250µA	2.2	V
Gate Charge (Qg) @ 10V	35	nC
Input Capacitance (Ciss) @ 15V	2800	pF
Power Dissipation (Ta)	2.5	W
Power Dissipation (Tc)	50	W
Operating Temperature Range	-55 to 150	°C
Package Type	8-PowerTDFN (PG-TDSON-8-5)	-
RoHS Status	ROHS3 Compliant	-
MSL Rating	1 (Unlimited)	-

Substitute Part Grouping Explanation

Substitution eligibility for the BSC050N03LSGATMA1 is determined by the following critical parameters: Vdss rating of 30V, continuous drain current capability at both ambient (Ta) and case (Tc) temperatures, on-resistance characteristics, gate charge, and thermal performance. All substitute parts must maintain the same voltage class (30V) and support equivalent or superior current handling at the specified temperature conditions. The on-resistance at rated conditions must not exceed the original specification to ensure thermal performance equivalence. Gate charge and input capacitance values influence switching speed and drive requirements; substitutes with comparable or lower values maintain circuit performance. Package compatibility is evaluated based on the 8-PowerTDFN footprint standard, though physical package designations may vary by manufacturer while maintaining electrical and thermal equivalence. RoHS3 compliance and MSL 1 rating are required for all substitutes to ensure manufacturing and environmental compatibility.

Parameter Comparison

Parameter	BSC050N03LSGATMA1 (Infineon)	FDMS8027S (Fairchild)	CSD17506Q5A (TI)	CSD17510Q5A (TI)	CSD17577Q5A (TI)	CSD17577Q5AT (TI)	DMTH3004LPS-13 (Diodes)	FDMS7672 (Fairchild)	PSMN5R0-30YL,115 (Nexperia)	RS1E200GNTB (Rohm)
Vdss (V)	30	30	30	30	30	30	30	30	30	30
Id @ 25°C Ta (A)	18	18	-	20	60	60	22	19	-	20
Id @ 25°C Tc (A)	80	22	100	100	60	60	145	28	91	57
Rds On Max @ 10V (mOhm)	5	5	4	5.2	4.2	4.2	3.8	5	5	4.6
Vgs(th) @ 250µA (V)	2.2	3	1.8	2.1	1.8	1.8	3	3	2.15	2.5
Qg @ 10V (nC)	35	31	11	8.3	35	35	43.7	44	29	16.8
Ciss @ 15V (pF)	2800	1815	1650	1250	2310	2310	2370	2960	1760	1080
Pd Max Ta (W)	2.5	2.5	3.2	3	3	3	3.2	2.5	-	3
Pd Max Tc (W)	50	36	-	-	53	53	136	48	61	25
Operating Temp Range (°C)	-55 to 150	-55 to 150	-55 to 150	-55 to 150	-55 to 150	-55 to 150	-55 to 175	-55 to 150	-55 to 175	-55 to 150
Package	8-PowerTDFN	8-PowerTDFN	8-PowerTDFN	8-PowerTDFN	8-PowerTDFN	8-PowerTDFN	8-PowerTDFN	8-PowerTDFN	SC-100, SOT-669	8-PowerTDFN
RoHS Status	ROHS3	-	ROHS3	ROHS3	ROHS3	ROHS3	ROHS3	-	ROHS3	ROHS3
Product Status	Active	Active	Active	Active	Active	Active	Active	Active	Not For New Designs	Active

Engineering Selection Recommendations

Primary Substitutes (Recommended for New Designs)

CSD17577Q5A and CSD17577Q5AT (Texas Instruments NexFET™ series) provide direct electrical equivalence to the BSC050N03LSGATMA1. Both devices maintain the 30V Vdss rating, deliver 60A continuous drain current at ambient temperature, and feature 4.2mOhm on-resistance at 10V gate-source voltage. The gate charge specification of 35nC matches the original part exactly. CSD17577Q5A is supplied in Tape & Reel packaging with 24,121 units in stock, while CSD17577Q5AT is available in Cut Tape & Digi-Reel® format with 3,764 units in stock. Both are RoHS3 compliant with MSL 1 rating and Active product status. CSD17577Q5AT carries REACH Affected designation, while CSD17577Q5A is REACH Unaffected. Both support the full -55°C to 150°C operating temperature range.

CSD17510Q5A (Texas Instruments NexFET™) offers enhanced performance with 20A ambient current rating and 100A case temperature rating. On-resistance of 5.2mOhm at 10V remains within acceptable tolerance. Gate charge of 8.3nC is significantly lower, enabling faster switching characteristics. Input capacitance of 1250pF is reduced compared to the original, improving drive efficiency. This device is Active with RoHS3 compliance and MSL 1 rating. REACH Status is Affected. Inventory of 17,600 units supports production requirements.

Secondary Substitutes (Acceptable for Established Applications)

FDMS8027S (Fairchild Semiconductor PowerTrench® SyncFET™) maintains 30V Vdss and 18A ambient current rating with 5mOhm on-resistance at 10V. Gate charge of 31nC is comparable to the original specification. Input capacitance of 1815pF is reduced. Case temperature rating of 22A is lower than the original 80A, limiting thermal performance. Product status is Active with 20,200 units in stock. Package designation is 8-PQFN (5x6), maintaining 8-PowerTDFN footprint compatibility.

FDMS7672 (Fairchild Semiconductor PowerTrench®) supports 30V Vdss with 19A ambient and 28A case temperature ratings. On-resistance of 5mOhm at 10V matches the original specification. Gate charge of 44nC is slightly elevated. Input capacitance of 2960pF exceeds the original by 160pF. Product status is Active with 52,870 units in stock. This device is suitable for applications where thermal performance is not critical.

RS1E200GNTB (Rohm Semiconductor) provides 30V Vdss with 20A ambient and 57A case temperature ratings. On-resistance of 4.6mOhm at 10V is superior to the original. Gate charge of 16.8nC is significantly lower, enabling improved switching performance. Input capacitance of 1080pF is substantially reduced. Product status is Active with RoHS3 compliance and MSL 1 rating. Inventory of 9,300 units is available. Operating temperature range extends to 150°C maximum.

Not Recommended for New Designs

PSMN5R0-30YL,115 (Nexperia) carries Product Status designation of "Not For New Designs." Although electrical parameters are compatible, this device should not be selected for new circuit development. Existing applications using this part may continue operation.

Automotive-Grade Alternative

DMTH3004LPS-13 (Diodes Incorporated) is qualified to AEC-Q101 automotive standard with operating temperature range extended to 175°C. This device delivers 22A ambient and 145A case temperature ratings with 3.8mOhm on-resistance at 10V. Gate charge of 43.7nC and input capacitance of 2370pF are comparable to the original. RoHS3 compliance and MSL 1 rating are confirmed. Inventory of 9,368 units supports automotive applications requiring enhanced temperature performance and qualification documentation.

Frequently Asked Questions (FAQ)

Q: Can CSD17506Q5A be used as a direct replacement for BSC050N03LSGATMA1?

A: CSD17506Q5A is not a direct replacement. While both devices maintain 30V Vdss rating, CSD17506Q5A is optimized for 100A case temperature operation with only 4mOhm on-resistance. The device lacks a specified ambient temperature (Ta) rating, indicating optimization for case-temperature-limited applications. Gate charge of 11nC is significantly lower than the original 35nC, which may require circuit redesign for gate drive compatibility. This device is suitable only for applications where the original circuit can accommodate reduced gate charge and where case temperature operation is the primary design criterion.

Q: What is the significance of the difference between Ta and Tc current ratings?

A: Ta (ambient temperature) and Tc (case temperature) ratings define the device's continuous current capability under different thermal conditions. Ta rating applies when the device operates at 25°C ambient temperature with natural convection cooling. Tc rating applies when the device case is actively cooled to 25°C, typically through direct contact with a heat sink. The BSC050N03LSGATMA1 delivers 18A at Ta and 80A at Tc, indicating that thermal management through case cooling provides significant current capacity enhancement. Substitute selection must consider the application's actual thermal environment. Devices with lower Tc ratings (such as FDMS8027S at 22A Tc) are unsuitable for applications requiring the full 80A case temperature performance.

Q: Are all substitute parts compatible with the 8-PowerTDFN footprint?

A: All substitute parts listed maintain electrical and thermal equivalence within the 8-PowerTDFN package family. However, physical package designations vary by manufacturer: Infineon uses PG-TDSON-8-5, Fairchild uses 8-PQFN (5x6), and Texas Instruments uses 8-VSONP (5x6). These designations refer to the same standardized footprint with identical pin spacing, pad dimensions, and thermal characteristics. Diodes Incorporated uses PowerDI5060-8, which also maintains 8-PowerTDFN compatibility. Nexperia's PSMN5R0-30YL,115 uses LFPAK56 / Power-SO8 package (SC-100, SOT-669), which has different physical dimensions and is not footprint-compatible with the original part. PCB layout verification is required when substituting between different manufacturer package designations, even within the 8-PowerTDFN family, to confirm pad alignment and thermal via placement.

Q: What does "Not For New Designs" status mean for PSMN5R0-30YL,115?

A: "Not For New Designs" indicates that the manufacturer (Nexperia) has discontinued active development and marketing of this device for new applications. The part remains available for existing production runs and field support of established designs. New circuit development should select from devices with "Active" product status to ensure long-term supply availability, ongoing technical support, and access to process improvements. PSMN5R0-30YL,115 may be used only in legacy applications or when supply chain constraints require temporary substitution with documented engineering approval.

Q: How do gate charge differences affect circuit performance?

A: Gate charge (Qg) determines the total charge required to switch the MOSFET from off to on state. The BSC050N03LSGATMA1 requires 35nC at 10V gate-source voltage. Substitutes with lower gate charge (such as CSD17506Q5A at 11nC or CSD17510Q5A at 8.3nC) require less drive current and enable faster switching transitions, reducing switching losses in high-frequency applications. Substitutes with higher gate charge (such as DMTH3004LPS-13 at 43.7nC or FDMS7672 at 44nC) require increased gate drive capability and may slow switching speed. Gate drive circuits must be verified to supply adequate current for the selected device's gate charge specification. Mismatched gate drive capability can result in incomplete switching transitions, increased power dissipation, and thermal runaway.

Q: What is the importance of RoHS3 compliance and MSL 1 rating?

A: RoHS3 (Restriction of Hazardous Substances Directive 3) compliance certifies that the device contains no lead, cadmium, mercury, or other restricted substances, meeting European environmental regulations and customer procurement requirements. All substitute parts listed maintain RoHS3 compliance except FDMS8027S and FDMS7672, for which RoHS status is not specified. MSL 1 (Moisture Sensitivity Level 1) rating indicates unlimited shelf life without moisture-controlled storage. The device can be stored at room temperature and humidity without desiccant packaging or moisture-barrier bags. MSL 1 rating simplifies inventory management and reduces handling costs compared to higher MSL ratings requiring controlled storage environments. Substitutes must maintain equivalent or superior compliance status to ensure manufacturing compatibility and regulatory acceptance.

Q: Can DMTH3004LPS-13 be used in non-automotive applications?

A: Yes. DMTH3004LPS-13 is AEC-Q101 qualified for automotive applications but is not restricted to automotive use. The device's extended operating temperature range (-55°C to 175°C) and enhanced reliability qualification make it suitable for industrial and high-reliability applications. The automotive qualification provides additional assurance of manufacturing process control and long-term availability. Non-automotive applications may select this device when extended temperature performance or enhanced reliability documentation is required, even if automotive qualification is not mandated by the application.

Q: What thermal performance differences exist between substitute parts?

A: Power dissipation ratings at case temperature (Tc) vary significantly among substitutes. The BSC050N03LSGATMA1 dissipates 50W at Tc. DMTH3004LPS-13 dissipates 136W at Tc, indicating superior thermal performance through lower on-resistance (3.8mOhm) and enhanced heat transfer characteristics. CSD17577Q5A and CSD17577Q5AT dissipate 53W at Tc, closely matching the original. FDMS8027S dissipates 36W at Tc, and RS1E200GNTB dissipates 25W at Tc, both indicating reduced thermal capacity. Applications requiring continuous high-current operation at elevated case temperatures must select substitutes with Tc power dissipation ratings equal to or exceeding the original specification. Thermal modeling and heat sink design verification are required when substituting devices with different power dissipation ratings.

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