STP90NF03L Equivalent & Substitute Parts

Part Overview

The STP90NF03L is an N-Channel 30V 90A MOSFET manufactured by STMicroelectronics in the STripFET™ series, housed in a TO-220AB through-hole package. This device is rated for 150W power dissipation and operates across a temperature range of -65°C to 175°C. The part is designated as "Not For New Designs," indicating it has been superseded in the manufacturer's product roadmap. Finding equivalent or substitute parts is necessary for applications requiring continued supply, design flexibility, or performance optimization within the 30V N-Channel MOSFET category.

Key Parameters

Parameter	Value	Unit
Drain to Source Voltage (Vdss)	30	V
Continuous Drain Current (Id) @ 25°C	90	A (Tc)
Rds On (Max) @ Id, Vgs	6.5	mOhm @ 45A, 10V
Gate Threshold Voltage (Vgs(th)) @ Id	2.5	V @ 250µA
Gate Charge (Qg) @ Vgs	47	nC @ 5V
Power Dissipation (Max)	150	W (Tc)
Operating Temperature Range	-65 to 175	°C (TJ)
Package Type	TO-220-3	Through Hole
RoHS Status	ROHS3 Compliant	-

Substitute Part Grouping Explanation

Substitution of the STP90NF03L is determined by strict alignment of the following electrical and mechanical parameters:

Primary Substitution Criteria:

Drain to Source Voltage (Vdss): Must equal 30V
FET Type: Must be N-Channel MOSFET
Package: Must be TO-220-3 through-hole configuration
Mounting Type: Must be through-hole

Secondary Compatibility Parameters:

Continuous Drain Current (Id): Substitute must meet or exceed 90A (Tc)
Rds On (Max): Lower or equal values indicate improved performance
Gate Charge (Qg): Lower values reduce gate drive requirements
Power Dissipation: Higher ratings provide thermal margin
Operating Temperature Range: Must encompass or match the -65°C to 175°C specification
RoHS and REACH Compliance: Must maintain ROHS3 Compliant and REACH Unaffected status

The five substitute parts listed (FDP8874, IRL3803PBF, PSMN1R8-30PL,127, PSMN2R0-30PL,127, PSMN4R3-30PL,127) all satisfy the primary criteria. Differences in secondary parameters reflect design trade-offs in gate charge, on-resistance, and thermal performance.

Parameter Comparison

Parameter	STP90NF03L	FDP8874	IRL3803PBF	PSMN1R8-30PL,127	PSMN2R0-30PL,127	PSMN4R3-30PL,127
Manufacturer	STMicroelectronics	onsemi	Infineon Technologies	Nexperia USA Inc.	Nexperia USA Inc.	Nexperia USA Inc.
Vdss (V)	30	30	30	30	30	30
Id @ 25°C (A, Tc)	90	114	140	100	100	100
Rds On (Max) @ 10V (mOhm)	6.5 @ 45A	5.3 @ 40A	6 @ 71A	1.8 @ 25A	2.1 @ 15A	4.3 @ 15A
Vgs(th) (Max) @ 250µA (V)	2.5	2.5	1	2.15	2.15	2.15
Gate Charge (Qg) (nC)	47 @ 5V	72 @ 10V	140 @ 4.5V	170 @ 10V	117 @ 10V	41.5 @ 10V
Power Dissipation (Max) (W, Tc)	150	110	200	270	211	103
Operating Temperature (°C)	-65 to 175	-55 to 175	-55 to 175	-55 to 175	-55 to 175	-55 to 175
Package	TO-220-3	TO-220-3	TO-220-3	TO-220-3	TO-220-3	TO-220-3
Product Status	Not For New Designs	Obsolete	Not For New Designs	Obsolete	Obsolete	Obsolete
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant

Engineering Selection Recommendations

Compliance and Status Considerations:

All substitute parts maintain ROHS3 compliance and REACH Unaffected status, ensuring regulatory alignment with the original STP90NF03L. However, all listed substitutes carry either "Obsolete" or "Not For New Designs" product status, indicating limited long-term availability.

Performance Trade-offs:

FDP8874 (onsemi): Provides 114A continuous current with lower on-resistance (5.3mOhm) but reduced power dissipation (110W) and higher gate charge (72nC). Suitable for applications prioritizing lower conduction losses.
IRL3803PBF (Infineon Technologies): Offers the highest continuous current (140A) and power dissipation (200W) with moderate on-resistance (6mOhm). Lower gate threshold voltage (1V) enables faster switching response. Suitable for high-current applications requiring thermal headroom.
PSMN1R8-30PL,127 (Nexperia USA Inc.): Delivers the lowest on-resistance (1.8mOhm) and highest power dissipation (270W), with 100A continuous current. Highest gate charge (170nC) requires stronger gate drive. Optimal for applications where conduction loss minimization is critical.
PSMN2R0-30PL,127 (Nexperia USA Inc.): Balances on-resistance (2.1mOhm) and gate charge (117nC) with 100A continuous current and 211W power dissipation. Moderate gate drive requirements with good thermal performance.
PSMN4R3-30PL,127 (Nexperia USA Inc.): Provides the lowest gate charge (41.5nC) and moderate on-resistance (4.3mOhm) with 100A continuous current. Lowest power dissipation (103W) among substitutes. Suitable for gate-drive-limited or high-frequency switching applications.

Operating Temperature Consideration:

The STP90NF03L operates from -65°C; all substitutes operate from -55°C. Applications requiring operation below -55°C must retain the original part.

Frequently Asked Questions (FAQ)

Q: Can I directly replace STP90NF03L with any of these substitute parts?

A: Direct replacement is possible only if your application meets the electrical and thermal requirements of the substitute. All substitutes share the same 30V Vdss rating, N-Channel configuration, and TO-220-3 package. However, differences in on-resistance, gate charge, and power dissipation may affect circuit performance. Verify that your gate drive circuit can supply the required gate charge and that thermal management accommodates the substitute's power dissipation rating.

Q: Which substitute has the lowest on-resistance?

A: PSMN1R8-30PL,127 offers the lowest on-resistance at 1.8mOhm @ 25A, 10V. This reduces conduction losses but requires higher gate charge (170nC @ 10V) and stronger gate drive capability.

Q: Which substitute requires the least gate drive power?

A: PSMN4R3-30PL,127 has the lowest gate charge at 41.5nC @ 10V, minimizing gate drive requirements and enabling operation with weaker or slower gate drive circuits.

Q: Are all substitutes RoHS compliant?

A: Yes, all listed substitutes are ROHS3 Compliant and REACH Unaffected, matching the regulatory status of the STP90NF03L.

Q: What is the minimum operating temperature for substitutes?

A: All substitutes operate from -55°C, whereas the STP90NF03L operates from -65°C. If your application requires operation below -55°C, the STP90NF03L or equivalent parts with -65°C minimum temperature must be used.

Q: Can I use a substitute with higher power dissipation rating?

A: Yes. A substitute with higher power dissipation rating (e.g., PSMN1R8-30PL,127 at 270W versus STP90NF03L at 150W) provides additional thermal margin and is electrically compatible. Ensure your PCB layout and thermal management can accommodate the substitute's physical dimensions and thermal characteristics.

Q: Do all substitutes have the same gate threshold voltage?

A: No. IRL3803PBF has a significantly lower gate threshold voltage (1V @ 250µA) compared to the STP90NF03L (2.5V @ 250µA) and other substitutes (2.15V @ 1mA). This affects gate drive timing and switching characteristics. Verify compatibility with your gate drive circuit.

Q: What is the continuous drain current rating I should use for design?

A: Use the Tc (case temperature) rating for continuous operation. The STP90NF03L is rated at 90A (Tc). All substitutes meet or exceed this rating at 100A or higher (Tc), providing current margin for thermal management.

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