BSS7728NH6327XTSA2 Equivalent & Substitute Parts

Part Overview

The BSS7728NH6327XTSA2 is an N-Channel MOSFET manufactured by Infineon Technologies, rated for 60V drain-to-source voltage with 200mA continuous drain current at 25°C. This device is packaged in SOT-23-3 (PG-SOT23) surface mount configuration and is qualified to AEC-Q101 automotive standards with ROHS3 compliance.

The BSS7728NH6327XTSA2 is classified as obsolete. Substitute parts are necessary to maintain design continuity and ensure component availability for new production runs and field replacements. Alternative N-Channel MOSFETs with equivalent electrical and mechanical specifications are available from multiple manufacturers.

Key Parameters

Parameter	Value	Unit
FET Type	N-Channel	-
Drain to Source Voltage (Vdss)	60	V
Current - Continuous Drain (Id) @ 25°C	200	mA
Rds On (Max) @ Id, Vgs	5	Ohm @ 500mA, 10V
Vgs(th) (Max) @ Id	2.3	V @ 26µA
Gate Charge (Qg) (Max) @ Vgs	1.5	nC @ 10V
Power Dissipation (Max)	360	mW
Operating Temperature Range	-55 to 150	°C
Package / Case	TO-236-3, SC-59, SOT-23-3	-
Mounting Type	Surface Mount	-
Grade	Automotive	-
Qualification	AEC-Q101	-
RoHS Status	ROHS3 Compliant	-

Substitute Part Grouping Explanation

Substitution of the BSS7728NH6327XTSA2 is determined by strict equivalence across the following electrical and mechanical parameters:

Critical Matching Parameters:

Drain to Source Voltage (Vdss): 60V minimum
Package / Case: TO-236-3, SC-59, SOT-23-3 (surface mount, identical footprint)
Mounting Type: Surface Mount
Operating Temperature Range: -55°C to 150°C minimum
RoHS Status: ROHS3 Compliant
REACH Status: REACH Unaffected

Functional Compatibility Parameters:

FET Type: N-Channel
Technology: MOSFET (Metal Oxide)
Continuous Drain Current (Id): 180mA minimum at 25°C
Rds On (Max): 5 Ohm or lower
Vgs(th) (Max): Within ±20V gate voltage specification
Power Dissipation: 300mW minimum

Preferred Substitutes: Substitute parts are grouped into two categories based on manufacturer status and availability:

MFR Recommended (Active Status): SN7002NH6327XTSA2 (Infineon Technologies), MMBF170-7-F (Diodes Incorporated)
Direct Alternatives (Active Status): 2N7002AQ-13 (Diodes Incorporated), NX138AKR (Nexperia USA Inc.)

All substitute parts maintain automotive-grade qualification and AEC-Q101 compliance.

Parameter Comparison

Parameter	BSS7728NH6327XTSA2	SN7002NH6327XTSA2	2N7002AQ-13	MMBF170-7-F	NX138AKR
Manufacturer	Infineon	Infineon	Diodes Inc.	Diodes Inc.	Nexperia
Product Status	Obsolete	Active	Active	Active	Active
Vdss (V)	60	60	60	60	60
Id @ 25°C (mA)	200	200	180	500	190
Rds On (Max) @ 10V (Ohm)	5	5	5	5	4.5
Vgs(th) (Max) (V)	2.3	1.8	2.0	3.0	1.5
Gate Charge Qg (nC)	1.5	1.5	-	-	1.4
Input Capacitance Ciss (pF)	56	45	23	40	20
Power Dissipation (mW)	360	360	370	300	325
Operating Temp Range (°C)	-55 to 150	-55 to 150	-55 to 150	-55 to 150	-55 to 150
Package	SOT-23-3	SOT-23-3	SOT-23-3	SOT-23-3	TO-236AB
AEC-Q101	Yes	Yes	Yes	No	No
RoHS3 Compliant	Yes	Yes	Yes	Yes	Yes

Engineering Selection Recommendations

Primary Substitute: SN7002NH6327XTSA2

The SN7002NH6327XTSA2 is the recommended primary substitute. This part is manufactured by Infineon Technologies (original manufacturer of BSS7728NH6327XTSA2), maintains active product status, and carries identical electrical specifications including 60V Vdss, 200mA continuous drain current, and 5 Ohm Rds On. The device is AEC-Q101 qualified and ROHS3 compliant. Inventory availability is 95,200 pieces. This substitute provides direct functional equivalence with superior supply chain continuity.

Secondary Substitute: 2N7002AQ-13

The 2N7002AQ-13 from Diodes Incorporated is an active alternative with 60V Vdss and 180mA continuous drain current. This part meets or exceeds the electrical requirements with 5 Ohm Rds On and maintains AEC-Q101 qualification and ROHS3 compliance. Inventory availability is 8,371 pieces. This substitute is suitable for applications where the 20mA reduction in continuous drain current does not impact circuit performance.

Tertiary Substitute: MMBF170-7-F

The MMBF170-7-F from Diodes Incorporated is an active alternative with enhanced current capability (500mA continuous drain current at 25°C) and 60V Vdss. This part provides superior performance headroom with 5 Ohm Rds On and 300mW power dissipation. Inventory availability is 257,842 pieces. This substitute is suitable for applications requiring higher current capacity. Note: AEC-Q101 qualification is not specified for this part.

Quaternary Substitute: NX138AKR

The NX138AKR from Nexperia USA Inc. is an active alternative with 60V Vdss and 190mA continuous drain current. This part features superior Rds On performance (4.5 Ohm) and lower input capacitance (20 pF). Inventory availability is 53,007 pieces. Note: AEC-Q101 qualification is not specified for this part.

For automotive applications requiring AEC-Q101 compliance, SN7002NH6327XTSA2 or 2N7002AQ-13 are the appropriate selections.

Frequently Asked Questions (FAQ)

Q: Can SN7002NH6327XTSA2 be used as a direct replacement for BSS7728NH6327XTSA2?

A: Yes. The SN7002NH6327XTSA2 is a direct functional equivalent. Both parts share identical electrical specifications (60V Vdss, 200mA Id, 5 Ohm Rds On), the same SOT-23-3 package footprint, and equivalent thermal characteristics (360mW power dissipation, -55°C to 150°C operating range). Both are AEC-Q101 qualified and ROHS3 compliant. The primary difference is product status: SN7002NH6327XTSA2 is active with high inventory availability.

Q: What is the difference between 2N7002AQ-13 and the original BSS7728NH6327XTSA2?

A: The 2N7002AQ-13 has a 20mA lower continuous drain current specification (180mA versus 200mA). All other electrical parameters are equivalent or superior: 60V Vdss, 5 Ohm Rds On, ±20V Vgs maximum, and identical operating temperature range. Both parts use SOT-23-3 packaging and are AEC-Q101 qualified. The 2N7002AQ-13 is suitable for applications where the reduced current rating does not constrain circuit operation.

Q: Why does MMBF170-7-F have higher current rating than the original part?

A: The MMBF170-7-F is designed for higher current applications with 500mA continuous drain current capability at 25°C, compared to 200mA for BSS7728NH6327XTSA2. Both parts maintain 60V Vdss and 5 Ohm Rds On specifications. The MMBF170-7-F provides additional performance margin for circuits requiring higher current handling. This part is suitable for designs where increased current capacity is beneficial or required.

Q: Are all substitute parts compatible with the same PCB footprint?

A: Yes. All substitute parts use SOT-23-3 or TO-236AB packaging, which share identical surface mount footprints (TO-236-3, SC-59, SOT-23-3). PCB layout and component placement require no modification when substituting any of these parts.

Q: Which substitute part should be selected for automotive applications?

A: For automotive applications requiring AEC-Q101 qualification, select either SN7002NH6327XTSA2 or 2N7002AQ-13. Both parts carry AEC-Q101 qualification and are suitable for automotive-grade designs. SN7002NH6327XTSA2 is preferred due to identical current rating (200mA) and active manufacturer status from Infineon Technologies.

Q: What is the moisture sensitivity level for all substitute parts?

A: All substitute parts carry MSL 1 (Unlimited) moisture sensitivity level classification, indicating no moisture sensitivity restrictions during storage, handling, or assembly.

Q: Are all substitute parts REACH compliant?

A: Yes. All substitute parts maintain REACH Unaffected status, indicating compliance with REACH regulations.

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