AOB264L N-Channel MOSFET 60V 19A/140A TO-263 Equivalent & Substitute Parts

Part Overview

The AOB264L is an N-Channel MOSFET manufactured by Alpha & Omega Semiconductor Inc., rated for 60V drain-to-source voltage with continuous drain current of 19A at Ta (ambient temperature) and 140A at Tc (case temperature). The device is housed in a TO-263 (D2PAK) surface mount package and is classified as obsolete. Due to its obsolete status, equivalent and substitute parts from active manufacturers are necessary for new designs and ongoing production requirements. Substitute devices must maintain electrical compatibility across voltage ratings, current handling capability, thermal performance, and package configuration.

Key Parameters

Parameter	AOB264L Value	Unit
FET Type	N-Channel	—
Technology	MOSFET (Metal Oxide)	—
Drain to Source Voltage (Vdss)	60	V
Continuous Drain Current @ 25°C (Ta)	19	A
Continuous Drain Current @ 25°C (Tc)	140	A
Rds On (Max) @ Id, Vgs	3 mOhm @ 20A, 10V	—
Vgs(th) (Max) @ Id	3.2 V @ 250µA	—
Gate Charge (Qg) (Max) @ Vgs	94 nC @ 10V	—
Vgs (Max)	±20	V
Input Capacitance (Ciss) (Max) @ Vds	8400 pF @ 30V	—
Power Dissipation (Max) (Tc)	333	W
Operating Temperature Range	-55 to 175	°C (TJ)
Mounting Type	Surface Mount	—
Package / Case	TO-263-3, D2PAK (2 Leads + Tab)	—
Moisture Sensitivity Level (MSL)	1 (Unlimited)	—

Substitute Part Grouping Explanation

Substitution of the AOB264L is determined by strict adherence to the following electrical and mechanical parameters:

Primary Substitution Criteria:

Drain-to-Source Voltage (Vdss): Must equal or exceed 60V
Package Type: Must be TO-263-3 or D2PAK (2 Leads + Tab) surface mount configuration
FET Type: Must be N-Channel MOSFET
Operating Temperature Range: Must encompass -55°C to 175°C (TJ)
Continuous Drain Current (Tc): Must support minimum 140A at case temperature to maintain thermal equivalence

Secondary Compatibility Parameters:

Rds On (Max): Lower or equal values indicate improved performance
Gate Charge (Qg): Lower values reduce drive circuit requirements
Vgs(th): Threshold voltage compatibility with existing gate drive circuits
Input Capacitance (Ciss): Affects switching speed and drive circuit design

Substitute parts are grouped into two categories: direct electrical equivalents (matching or exceeding all primary criteria) and functional alternatives (meeting primary criteria with minor parameter variations that do not affect circuit operation within the specified application envelope).

Parameter Comparison

Parameter	AOB264L	BUK763R1-60E,118	BUK963R3-60E,118	BUK964R2-55B,118	FDB029N06	FDB035AN06A0	IPB026N06NATMA1	IPB029N06N3GATMA1	IPB034N06L3GATMA1	IPB037N06N3GATMA1	IPB90N06S404ATMA2
Manufacturer	Alpha & Omega	Nexperia	Nexperia	Nexperia	Fairchild	Fairchild	Infineon	Infineon	Infineon	Infineon	Infineon
Vdss (V)	60	60	60	55	60	60	60	60	60	60	60
Id (Tc) (A)	140	120	120	75	120	80	100	120	90	90	90
Rds On (Max) (mOhm)	3.0	3.1	3.0	3.7	3.1	3.5	2.6	2.9	3.4	3.7	4.0
Vgs(th) (Max) (V)	3.2	4.0	2.1	2.0	4.5	4.0	2.8	4.0	2.2	4.0	4.0
Qg (Max) (nC)	94	114	95	95	151	124	56	165	79	98	128
Ciss (Max) (pF)	8400	8920	13490	10220	9815	6400	4100	13000	13000	11000	10400
Vgs (Max) (V)	±20	±20	±10	±15	±20	±20	±20	±20	±20	±20	±20
Power Dissipation (Tc) (W)	333	293	293	300	231	310	136	188	167	188	150
Operating Temperature (°C)	-55 to 175	-55 to 175	-55 to 175	-55 to 175	-55 to 175	-55 to 175	-55 to 175	-55 to 175	-55 to 175	-55 to 175	-55 to 175
Package	TO-263-3, D2PAK	D2PAK	D2PAK	D2PAK	TO-263 (D2PAK)	TO-263 (D2PAK)	PG-TO263-3	PG-TO263-3	PG-TO263-3	PG-TO263-3	PG-TO263-3
Product Status	Obsolete	Active	Active	Active	Active	Active	Active	Active	Not For New Designs	Active	Obsolete
RoHS Status	—	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	—	—	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
AEC-Q101 Qualified	—	Yes	Yes	Yes	—	—	—	—	—	—	Yes

Engineering Selection Recommendations

Tier 1 - Direct Equivalents (Recommended for New Designs):

The following parts are classified as direct equivalents based on active product status, full compliance certifications, and electrical parameters that meet or exceed the AOB264L specification:

BUK763R1-60E,118 (Nexperia): Active product status, AEC-Q101 automotive qualified, 60V/120A (Tc), 3.1 mOhm Rds On, ROHS3 compliant. Continuous drain current of 120A at case temperature is within acceptable range for thermal management in equivalent applications.
IPB029N06N3GATMA1 (Infineon): Active product status, 60V/120A (Tc), 2.9 mOhm Rds On, ROHS3 compliant. Superior gate charge characteristics (165 nC) and lower Rds On provide improved efficiency.
IPB037N06N3GATMA1 (Infineon): Active product status, 60V/90A (Tc), 3.7 mOhm Rds On, ROHS3 compliant. Suitable for applications where 90A continuous current meets thermal requirements.

Tier 2 - Functional Alternatives (Acceptable for Existing Designs):

The following parts maintain electrical compatibility with minor parameter variations:

BUK963R3-60E,118 (Nexperia): Active product status, AEC-Q101 qualified, 60V/120A (Tc), 3.0 mOhm Rds On. Lower gate threshold voltage (2.1V) requires gate drive circuit verification. Vgs (Max) limited to ±10V.
FDB029N06 (Fairchild): Active product status, 60V/120A (Tc), 3.1 mOhm Rds On. Higher gate charge (151 nC) increases drive circuit power consumption.
IPB026N06NATMA1 (Infineon): Active product status, 60V/100A (Tc), 2.6 mOhm Rds On, ROHS3 compliant. Lowest gate charge (56 nC) and input capacitance (4100 pF) reduce switching losses.

Tier 3 - Limited Compatibility (Not Recommended for New Designs):

BUK964R2-55B,118 (Nexperia): Vdss rating of 55V is below the 60V specification. Acceptable only in applications with maximum operating voltage below 55V.
FDB035AN06A0 (Fairchild): Continuous drain current of 80A (Tc) is significantly lower than AOB264L 140A rating. Suitable only for reduced current applications.
IPB034N06L3GATMA1 (Infineon): Product status "Not For New Designs" restricts use to legacy system maintenance only.
IPB90N06S404ATMA2 (Infineon): Obsolete product status. Use only for direct replacement in existing systems where supply chain continuity is critical.

Frequently Asked Questions (FAQ)

Q: Can I use a substitute part with lower continuous drain current (Tc) than the AOB264L 140A rating?

A: Substitution with lower current ratings is acceptable only if the application's actual current requirements are verified to be below the substitute part's rating. The AOB264L 140A (Tc) specification represents case temperature current; actual circuit current may be significantly lower. Thermal analysis of the specific application is required to confirm compatibility.

Q: What is the difference between Ta (ambient temperature) and Tc (case temperature) current ratings?

A: Ta current is measured at 25°C ambient temperature without heat sinking. Tc current is measured at 25°C case temperature with proper thermal management. For most practical applications, the Tc rating is the relevant specification. Substitute parts must maintain equivalent Tc ratings or higher for thermal equivalence.

Q: Are all substitute parts pin-compatible with the AOB264L?

A: Yes. All listed substitute parts use the TO-263-3 or D2PAK (2 Leads + Tab) package configuration, which maintains identical pinout: Gate, Drain (tab), and Source. Physical footprint compatibility is confirmed across all substitutes.

Q: What does "Not For New Designs" product status mean?

A: This designation indicates the manufacturer no longer recommends the part for new circuit designs. The part remains available for existing production and legacy system support but should not be selected for new development. Parts with this status should be replaced with active alternatives during design updates.

Q: Why do some substitute parts have lower Rds On values than the AOB264L?

A: Lower Rds On (on-resistance) values indicate improved semiconductor technology and manufacturing processes. Substitutes with lower Rds On values provide reduced conduction losses and lower heat generation, representing performance improvements over the obsolete AOB264L. These are direct benefits in power conversion applications.

Q: Is gate charge (Qg) an important parameter for substitution?

A: Gate charge affects the gate drive circuit design and switching speed. The AOB264L specifies 94 nC at 10V. Substitute parts range from 56 nC to 165 nC. Higher gate charge requires more drive current and increases switching losses. If the existing gate drive circuit is optimized for the AOB264L, substitutes with significantly different Qg values (>120 nC) should be evaluated for drive circuit compatibility.

Q: What is the significance of AEC-Q101 qualification?

A: AEC-Q101 is an automotive industry qualification standard for discrete semiconductors. Parts with this certification have undergone rigorous reliability testing and are approved for automotive applications. For non-automotive applications, AEC-Q101 qualification is not required but indicates higher reliability standards.

Q: Can I substitute a 55V rated part (BUK964R2-55B,118) in a 60V application?

A: No. The AOB264L is rated for 60V Vdss. Using a 55V rated substitute exceeds the device's voltage specification and creates risk of gate oxide breakdown and device failure. The BUK964R2-55B,118 is acceptable only in applications where the maximum operating voltage is confirmed to be below 55V.

Q: What does ROHS3 compliance mean?

A: ROHS3 (Restriction of Hazardous Substances Directive 3) compliance indicates the part contains no lead, mercury, cadmium, hexavalent chromium, polybrominated biphenyls, or polybrominated diphenyl ethers. This is a regulatory requirement for electronic components sold in the European Union and many other markets. All active substitute parts listed are ROHS3 compliant.

Q: Are there any gate voltage (Vgs) limitations I should consider?

A: The AOB264L specifies Vgs (Max) of ±20V. Most substitute parts maintain this specification. However, BUK963R3-60E,118 limits Vgs (Max) to ±10V, and BUK964R2-55B,118 limits it to ±15V. If the gate drive circuit applies voltages exceeding these limits, these substitutes are not compatible. Verify gate drive voltage levels before selection.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message