STD60NF3LLT4 Equivalent & Substitute Parts

Part Overview

The STD60NF3LLT4 is an N-Channel 30V 60A MOSFET manufactured by STMicroelectronics in the STripFET™ II series, housed in a DPAK (TO-252-3) surface mount package. This device is rated for 100W power dissipation and operates across a temperature range of -55°C to 175°C. The part is currently classified as obsolete, necessitating identification of functionally equivalent alternatives for ongoing design support and production continuity.

Key Parameters

Parameter	Value	Unit
FET Type	N-Channel	—
Drain to Source Voltage (Vdss)	30	V
Continuous Drain Current (Id) @ 25°C	60	A (Tc)
Rds On (Max) @ 30A, 10V	9.5	mOhm
Gate Charge (Qg) @ 4.5V	40	nC
Power Dissipation (Max)	100	W (Tc)
Operating Temperature Range	-55 to 175	°C (TJ)
Package Type	DPAK (TO-252-3)	—
Mounting Type	Surface Mount	—
RoHS Status	ROHS3 Compliant	—

Substitute Part Grouping Explanation

Substitution of the STD60NF3LLT4 is determined by strict alignment of the following electrical and mechanical parameters:

Critical Matching Parameters:

Drain to Source Voltage (Vdss): 30V minimum
N-Channel MOSFET technology
Surface mount DPAK (TO-252-3) package configuration
Operating temperature range: -55°C to 175°C minimum
RoHS3 compliance

Performance Alignment Parameters:

Continuous drain current (Id) at 25°C: 60A or greater
On-resistance (Rds On) @ 10V: 9.5 mOhm or lower
Power dissipation capability: 100W or greater
Gate charge (Qg): 40 nC or lower

Substitute parts are grouped into two categories: Direct Equivalents (matching all critical parameters within specified tolerances) and Similar Alternatives (meeting critical electrical requirements with minor variations in secondary parameters such as gate charge or input capacitance).

Parameter Comparison

Part Number	Manufacturer	Vdss (V)	Id @ 25°C (A)	Rds On @ 10V (mOhm)	Qg @ Vgs (nC)	Power Diss. (W)	Temp Range (°C)	Package	Status
STD60NF3LLT4	STMicroelectronics	30	60 (Tc)	9.5 @ 30A	40 @ 4.5V	100	-55 to 175	DPAK	Obsolete
BUK9214-30A,118	Nexperia USA Inc.	30	63 (Tc)	12 @ 25A	31 @ 5V	107	-55 to 175	DPAK	Obsolete
DMN3010LK3-13	Diodes Incorporated	30	43 (Tc)	9.5 @ 18A	37 @ 10V	1.6 (Ta)	-55 to 150	TO-252-3	Active
FDD6670A	onsemi	30	66 (Tc)	8 @ 15A	22 @ 5V	63 (Tc)	-55 to 175	TO-252AA	Last Time Buy
FDD8876	onsemi	30	73 (Tc)	8.2 @ 35A	47 @ 10V	70 (Tc)	-55 to 175	TO-252AA	Obsolete
FDD8880	onsemi	30	58 (Tc)	9 @ 35A	31 @ 10V	55 (Tc)	-55 to 175	TO-252AA	Active
IPD090N03LGATMA1	Infineon Technologies	30	40 (Tc)	9 @ 30A	15 @ 10V	42 (Tc)	-55 to 175	PG-TO252-3-11	Active
IRFR3504ZTRPBF	Infineon Technologies	40	42 (Tc)	9 @ 42A	45 @ 10V	90 (Tc)	-55 to 175	TO-252AA	Active
IRFR3707ZTRPBF	Infineon Technologies	30	56 (Tc)	9.5 @ 15A	14 @ 4.5V	50 (Tc)	-55 to 175	TO-252AA	Not For New Designs
NTD4302T4G	onsemi	30	68 (Tc)	10 @ 20A	80 @ 10V	75 (Tc)	-55 to 150	DPAK	Obsolete

Engineering Selection Recommendations

Direct Equivalent (Highest Compatibility):

The BUK9214-30A,118 from Nexperia USA Inc. provides the closest functional equivalence to the STD60NF3LLT4. Both devices share identical Vdss (30V), comparable continuous drain current (63A vs. 60A), matching DPAK package configuration, and identical operating temperature range (-55°C to 175°C). The BUK9214 is AEC-Q101 automotive qualified and ROHS3 compliant. Although classified as obsolete, it maintains full electrical compatibility and is currently in stock (18,285 units available).

Active Production Alternatives:

For new designs requiring active product status, the FDD8880 from onsemi is recommended. This device operates at 30V with 58A continuous drain current, 9 mOhm on-resistance, and 55W power dissipation. The FDD8880 is actively produced, ROHS3 compliant, and maintains the full -55°C to 175°C operating range. The TO-252AA package is mechanically and electrically compatible with DPAK applications.

The IPD090N03LGATMA1 from Infineon Technologies (OptiMOS™ series) offers superior gate charge characteristics (15 nC vs. 40 nC) while maintaining 30V Vdss and 40A continuous current capability. This device is actively produced and suitable for applications where switching speed optimization is beneficial.

Voltage-Rated Alternative:

The IRFR3504ZTRPBF from Infineon Technologies provides 40V Vdss rating with 42A continuous current and 90W power dissipation. This part is suitable for applications where higher voltage margin is required and is actively produced with full compliance certifications.

Obsolete Status Consideration:

Parts classified as obsolete (STD60NF3LLT4, BUK9214-30A,118, FDD8876, NTD4302T4G) remain available in current inventory but should not be selected for new designs. The IRFR3707ZTRPBF, marked "Not For New Designs," is similarly restricted despite active inventory availability.

Frequently Asked Questions (FAQ)

Q: Can the STD60NF3LLT4 be directly replaced with the BUK9214-30A,118?

A: Yes. Both devices are N-Channel 30V MOSFETs in DPAK packages with matching operating temperature ranges (-55°C to 175°C). The BUK9214 provides 63A continuous current versus 60A, and 107W power dissipation versus 100W, making it electrically compatible. Both are ROHS3 compliant. However, both parts are obsolete; inventory availability should be verified before design commitment.

Q: What is the primary difference between DPAK and TO-252AA packages?

A: DPAK and TO-252AA are equivalent package designations for the same physical form factor (TO-252-3, SC-63). Both feature identical lead spacing, thermal characteristics, and PCB footprints. Parts specified as TO-252AA are functionally interchangeable with DPAK-packaged devices in existing board layouts.

Q: Why does the IPD090N03LGATMA1 have lower gate charge (15 nC) compared to the STD60NF3LLT4 (40 nC)?

A: Gate charge variation reflects differences in internal transistor geometry and manufacturing process. Lower gate charge indicates faster switching transitions and reduced driver power requirements. The IPD090N03LGATMA1 is suitable for applications where switching frequency optimization is beneficial, though it provides lower continuous current (40A vs. 60A).

Q: Is the IRFR3504ZTRPBF (40V) suitable as a replacement for the STD60NF3LLT4 (30V)?

A: The IRFR3504ZTRPBF is electrically compatible for applications designed for 30V operation. The higher 40V Vdss rating provides additional voltage margin without affecting performance at 30V. However, the continuous current rating (42A) is lower than the original specification (60A), limiting suitability for high-current applications.

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

A: The FDD8880 from onsemi is recommended for new designs. It is actively produced, ROHS3 compliant, maintains full -55°C to 175°C operating range, and provides 58A continuous current with 9 mOhm on-resistance at 30V. Alternatively, the IPD090N03LGATMA1 from Infineon is suitable for applications prioritizing switching efficiency.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All substitute parts listed are ROHS3 compliant and REACH unaffected, matching the compliance status of the original STD60NF3LLT4.

Q: What is the significance of "Last Time Buy" status for the FDD6670A?

A: "Last Time Buy" indicates that onsemi has announced end-of-life for this product. While currently available in inventory (43,200 units), no future production is planned. This part should not be selected for designs with extended production timelines.

Q: Can the NTD4302T4G be used as a direct replacement despite its higher gate charge (80 nC)?

A: The NTD4302T4G meets electrical requirements (30V, 68A continuous current, DPAK package) but exhibits significantly higher gate charge (80 nC vs. 40 nC). This increases driver power dissipation and may require gate driver circuit modifications. The part is obsolete and should not be selected for new applications.

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