STL75NH3LL N-Channel 30V 75A MOSFET Equivalent & Substitute Parts

Part Overview

The STL75NH3LL is an N-Channel 30V 75A MOSFET manufactured by STMicroelectronics in the STripFET™ series. This device is rated for 60W power dissipation and features a PowerFlat™ (5x6) surface mount package. The part is currently classified as obsolete, making identification of equivalent and substitute components essential for ongoing production support, design updates, and inventory management.

Substitute parts must maintain compatibility across critical electrical parameters including drain-source voltage rating, continuous drain current capability, on-resistance characteristics, and thermal performance specifications. Package compatibility and mounting type are equally critical for direct board-level substitution.

Key Parameters

Parameter	Value	Unit
Drain to Source Voltage (Vdss)	30	V
Continuous Drain Current (Id) @ 25°C	75	A (Tc)
Rds On (Max) @ 10A, 10V	5.7	mOhm
Power Dissipation (Max)	60	W (Tc)
Gate Charge (Qg) @ 4.5V	24	nC
Operating Temperature Range	-55 to 150	°C (TJ)
Package Type	PowerFlat™ (5x6)	8-PowerVDFN
Mounting Type	Surface Mount	—
RoHS Status	ROHS3 Compliant	—

Substitute Part Grouping Explanation

Substitute parts for the STL75NH3LL are selected based on strict electrical and mechanical compatibility criteria. All substitute candidates must satisfy the following requirements:

Mandatory Electrical Parameters:

Drain-Source Voltage (Vdss): 30V minimum
Continuous Drain Current (Id): Rated for 60A or higher at Tc
On-Resistance (Rds On): Within acceptable range for thermal and efficiency performance
Power Dissipation: Minimum 60W at Tc
Gate Charge: Compatible with existing gate drive circuitry
Operating Temperature: -55°C to 150°C minimum

Mandatory Mechanical Parameters:

Mounting Type: Surface Mount only
Package Footprint: 5x6mm form factor compatibility
Pin Configuration: 8-pin VDFN/DFN/VSON variants with exposed pad

Compliance Requirements:

RoHS3 Compliant
Moisture Sensitivity Level: MSL 1 (Unlimited)
REACH Unaffected status

Substitutes are grouped by their ability to meet or exceed these parameters while maintaining form-factor compatibility and thermal performance characteristics.

Parameter Comparison

Parameter	STL75NH3LL (Main)	PSMN5R0-30YL,115	DMN3009LFV-13	CSD17552Q5A	AON6414AL
Manufacturer	STMicroelectronics	Nexperia USA Inc.	Diodes Incorporated	Texas Instruments	Alpha & Omega Semiconductor Inc.
Vdss (V)	30	30	30	30	30
Id @ 25°C (A)	75 (Tc)	91 (Tc)	60 (Tc)	60 (Tc)	30 (Tc)
Rds On (Max) @ 10V (mOhm)	5.7 @ 10A	5.0 @ 15A	5.5 @ 30A	6.2 @ 15A	8.0 @ 20A
Power Dissipation (Max) (W)	60 (Tc)	61 (Tc)	2 (Ta)	3 (Ta)	31 (Tc)
Gate Charge @ Vgs (nC)	24 @ 4.5V	29 @ 10V	42 @ 10V	12 @ 4.5V	24 @ 10V
Operating Temperature (°C)	-55 to 150	-55 to 175	-55 to 150	-55 to 150	-55 to 150
Package Type	PowerFlat™ (5x6)	LFPAK56, Power-SO8	PowerDI3333-8	8-VSONP (5x6)	8-DFN (5x6)
Package / Case	8-PowerVDFN	SC-100, SOT-669	8-PowerVDFN	8-PowerTDFN	8-VDFN Exposed Pad
Product Status	Obsolete	Not For New Designs	Active	Active	Active
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
MSL Rating	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)

Engineering Selection Recommendations

Primary Substitute: PSMN5R0-30YL,115 (Nexperia USA Inc.)

The PSMN5R0-30YL,115 provides the closest electrical match to the STL75NH3LL with 91A continuous drain current and 61W power dissipation at Tc. On-resistance of 5.0 mOhm at 15A, 10V is superior to the main part. Operating temperature extends to 175°C, providing additional thermal margin. However, this part is classified as "Not For New Designs," limiting its suitability for long-term production. The LFPAK56 package footprint differs from the PowerFlat™ (5x6) form factor and requires PCB layout evaluation.

Secondary Substitute: DMN3009LFV-13 (Diodes Incorporated)

The DMN3009LFV-13 is an active product offering 60A continuous drain current and 2W power dissipation at Ta. On-resistance of 5.5 mOhm at 30A, 10V is comparable to the main part. The PowerDI3333-8 package maintains the 5x6mm footprint and 8-pin configuration, supporting direct board-level substitution. This part is actively manufactured and supported, making it suitable for ongoing production requirements.

Tertiary Substitute: CSD17552Q5A (Texas Instruments)

The CSD17552Q5A is an active NexFET™ series product with 60A continuous drain current at Tc. On-resistance of 6.2 mOhm at 15A, 10V is within acceptable range. Gate charge of 12 nC at 4.5V is lower than the main part, reducing gate drive power requirements. The 8-VSONP (5x6) package maintains form-factor compatibility. This part is actively produced and supported.

Alternative Substitute: AON6414AL (Alpha & Omega Semiconductor Inc.)

The AON6414AL is an active product with 30A continuous drain current at Tc and 31W power dissipation. This part exhibits reduced current capability compared to the main part and is suitable only for applications with lower current requirements. The 8-DFN (5x6) package maintains footprint compatibility. On-resistance of 8.0 mOhm at 20A, 10V is higher than the main part, resulting in increased power dissipation.

Compliance and Availability:

All substitute parts maintain ROHS3 compliance, MSL 1 rating, and REACH unaffected status, matching the main part's regulatory requirements. DMN3009LFV-13 and CSD17552Q5A are actively manufactured, providing long-term supply chain stability. PSMN5R0-30YL,115 is not recommended for new designs despite superior electrical performance.

Frequently Asked Questions (FAQ)

Q: Can the STL75NH3LL be directly replaced with the PSMN5R0-30YL,115?

A: Electrical substitution is possible due to matching Vdss (30V) and superior current/power ratings. However, the LFPAK56 package footprint differs from the PowerFlat™ (5x6) form factor, requiring PCB layout modification. Additionally, the part is classified as "Not For New Designs," limiting long-term availability. Direct board-level substitution is not recommended without layout evaluation.

Q: Which substitute part offers the best form-factor compatibility?

A: The DMN3009LFV-13 maintains the PowerDI3333-8 package with 5x6mm footprint and 8-pin configuration, providing the closest mechanical compatibility to the STL75NH3LL. The CSD17552Q5A with 8-VSONP (5x6) package also maintains footprint compatibility. Both parts support direct PCB substitution without layout modification.

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

A: Tc (case temperature) ratings represent continuous drain current at 25°C case temperature, typically used for thermal design calculations. Ta (ambient temperature) ratings represent continuous drain current at 25°C ambient temperature. Tc ratings are generally higher and more conservative for thermal analysis. The STL75NH3LL specifies 75A at Tc, while substitute parts may specify current at either Tc or Ta depending on manufacturer convention.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All substitute parts listed (PSMN5R0-30YL,115, DMN3009LFV-13, CSD17552Q5A, and AON6414AL) are ROHS3 compliant with MSL 1 rating and REACH unaffected status, matching the main part's regulatory requirements.

Q: Which substitute part has the lowest on-resistance?

A: The PSMN5R0-30YL,115 exhibits the lowest on-resistance at 5.0 mOhm (measured at 15A, 10V), followed by the DMN3009LFV-13 at 5.5 mOhm (measured at 30A, 10V). The STL75NH3LL specifies 5.7 mOhm at 10A, 10V. Lower on-resistance reduces power dissipation and improves thermal performance in high-current applications.

Q: Can the AON6414AL be used as a direct replacement?

A: The AON6414AL is electrically compatible with matching Vdss (30V) and operating temperature range. However, continuous drain current is limited to 30A at Tc, significantly lower than the STL75NH3LL's 75A rating. This part is suitable only for applications with reduced current requirements. Power dissipation of 31W at Tc is also lower than the main part's 60W rating.

Q: What is the impact of different gate charge specifications?

A: Gate charge (Qg) affects gate drive circuit design and switching speed. The STL75NH3LL specifies 24 nC at 4.5V, while the CSD17552Q5A specifies 12 nC at 4.5V (lower charge). Lower gate charge reduces gate drive power requirements and may improve switching performance. The DMN3009LFV-13 specifies 42 nC at 10V, requiring higher gate drive current. Gate drive circuit compatibility should be evaluated during substitution.

Q: Are package dimensions identical across all substitute parts?

A: No. While all substitute parts maintain 5x6mm footprint dimensions, package designations differ (PowerFlat™, PowerDI3333-8, 8-VSONP, 8-DFN). Pin configurations and exposed pad locations may vary. PCB layout evaluation is required to confirm mechanical and electrical compatibility, particularly for thermal via placement and current distribution patterns.

Q: Which substitute part is recommended for new production designs?

A: The DMN3009LFV-13 and CSD17552Q5A are both actively manufactured and supported, making them suitable for new production designs. The DMN3009LFV-13 offers superior current capability (60A) and maintains PowerFlat™ package compatibility. The CSD17552Q5A offers lower gate charge (12 nC) and is part of the active NexFET™ series. The PSMN5R0-30YL,115 is not recommended for new designs despite superior electrical performance.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message