NVMFS6D1N08HT1G Equivalent & Substitute Parts

Part Overview

The NVMFS6D1N08HT1G is an N-Channel MOSFET manufactured by onsemi, rated for 80V drain-to-source voltage with continuous drain current of 17A (Ta) and 89A (Tc). This device is housed in a 5-DFN (5x6) surface mount package and is qualified to AEC-Q101 automotive standards. The part is currently in active production status with 1862 units in stock.

Substitute parts are identified when equivalent electrical performance can be achieved within the specified parameter ranges while maintaining compatibility with the application's thermal, voltage, and current requirements.

Key Parameters

Parameter	Value	Unit
Drain to Source Voltage (Vdss)	80	V
Continuous Drain Current @ 25°C (Ta)	17	A
Continuous Drain Current @ 25°C (Tc)	89	A
Rds On (Max) @ 20A, 10V	5.5	mOhm
Gate Charge (Qg) @ 6V	10	nC
Input Capacitance (Ciss) @ 40V	2085	pF
Power Dissipation (Max) (Tc)	104	W
Operating Temperature Range	-55 to 175	°C
FET Type	N-Channel
Technology	MOSFET (Metal Oxide)
Package Type	5-DFN (5x6)
Mounting Type	Surface Mount
Grade	Automotive
Qualification	AEC-Q101

Substitute Part Grouping Explanation

Substitution eligibility for the NVMFS6D1N08HT1G is determined by the following critical parameters:

Voltage Rating: The substitute part must maintain the 80V Vdss rating to ensure safe operation within the same voltage domain.

Current Capability: The substitute must support continuous drain current at or above the specified ratings (17A Ta, 89A Tc) to handle equivalent load conditions.

On-Resistance (Rds On): The substitute's Rds On must not exceed the maximum specified value to maintain thermal performance and power dissipation characteristics.

Gate Charge (Qg): Lower or equivalent gate charge values ensure compatible drive circuit performance and switching speed.

Input Capacitance (Ciss): Equivalent or lower input capacitance maintains gate drive circuit compatibility.

Package Compatibility: Surface mount packages with equivalent thermal and electrical performance characteristics are acceptable.

Automotive Qualification: Parts must maintain AEC-Q101 qualification or equivalent automotive-grade certification.

The RS6N120BHTB1 qualifies as a substitute based on matching voltage rating, exceeding current capability, maintaining acceptable on-resistance, and retaining automotive-grade qualification.

Parameter Comparison

Parameter	NVMFS6D1N08HT1G (onsemi)	RS6N120BHTB1 (Rohm Semiconductor)	Unit
Drain to Source Voltage (Vdss)	80	80	V
Continuous Drain Current (Tc)	89	120	A
Rds On (Max)	5.5 @ 20A, 10V	4.9 @ 60A, 6V	mOhm
Gate Charge (Qg) (Max)	10 @ 6V	53 @ 10V	nC
Input Capacitance (Ciss) (Max)	2085 @ 40V	3420 @ 40V	pF
Power Dissipation (Max) (Tc)	104	104	W
Vgs (Max)	±20	±20	V
FET Type	N-Channel	N-Channel
Technology	MOSFET (Metal Oxide)	MOSFET (Metal Oxide)
Mounting Type	Surface Mount	Surface Mount
Operating Temperature (Max)	175	150	°C

Engineering Selection Recommendations

Primary Part (NVMFS6D1N08HT1G): This onsemi MOSFET is the specified component with active production status, AEC-Q101 automotive qualification, and RoHS3 compliance. It is suitable for applications requiring 80V operation with moderate to high current handling in automotive environments.

Substitute Part (RS6N120BHTB1): The Rohm Semiconductor RS6N120BHTB1 provides equivalent voltage rating and exceeds current capability specifications. This part maintains the same power dissipation rating and gate voltage limits. The higher continuous drain current (120A Tc versus 89A Tc) and lower on-resistance at higher current levels (4.9 mOhm @ 60A, 6V) provide improved thermal performance in high-current applications. However, the maximum operating temperature is limited to 150°C compared to 175°C for the primary part.

Selection between these parts depends on application-specific requirements: the NVMFS6D1N08HT1G is preferred for extended temperature range operation up to 175°C, while the RS6N120BHTB1 is suitable for applications operating within 150°C maximum junction temperature that benefit from higher current capacity and lower on-resistance.

Both parts are surface mount devices with automotive-grade qualification and equivalent ECCN/HTSUS classifications.

Frequently Asked Questions (FAQ)

Q: Can the RS6N120BHTB1 directly replace the NVMFS6D1N08HT1G in all applications?

A: Direct replacement is possible when the application operates within the RS6N120BHTB1's maximum junction temperature of 150°C. Applications requiring operation above 150°C must use the NVMFS6D1N08HT1G. Both parts share the same 80V voltage rating and gate voltage specifications (±20V).

Q: What are the package differences between these parts?

A: The NVMFS6D1N08HT1G uses a 5-DFN (5x6) package, while the RS6N120BHTB1 uses an 8-HSOP package. Both are surface mount configurations. PCB layout modifications are required when substituting between these package types due to different pin configurations and thermal pad geometries.

Q: How do the on-resistance values compare?

A: The NVMFS6D1N08HT1G specifies 5.5 mOhm maximum at 20A and 10V gate voltage. The RS6N120BHTB1 specifies 4.9 mOhm maximum at 60A and 6V gate voltage. The RS6N120BHTB1 demonstrates lower on-resistance at higher current levels, resulting in reduced power dissipation in high-current applications.

Q: Are there gate drive circuit compatibility concerns?

A: The RS6N120BHTB1 has higher gate charge (53 nC @ 10V) and input capacitance (3420 pF @ 40V) compared to the NVMFS6D1N08HT1G (10 nC @ 6V and 2085 pF @ 40V). Gate drive circuits must supply adequate current to charge these capacitances within the required switching time. Existing gate drive circuits designed for the NVMFS6D1N08HT1G may require adjustment when using the RS6N120BHTB1.

Q: Do both parts meet automotive qualification requirements?

A: The NVMFS6D1N08HT1G carries AEC-Q101 automotive qualification. The RS6N120BHTB1 is specified as an automotive-grade component. Both parts are RoHS compliant and have equivalent ECCN classifications (EAR99).

Q: What is the inventory status for these parts?

A: The NVMFS6D1N08HT1G has 1862 units in stock. The RS6N120BHTB1 has 2573 units in stock. Both are listed as active production parts.

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