AOB470L N-Channel MOSFET 75V 10A/100A TO-263 Equivalent & Substitute Parts

Part Overview

The AOB470L is an N-Channel MOSFET manufactured by Alpha & Omega Semiconductor Inc., rated for 75V drain-to-source voltage with continuous drain current of 10A at Ta and 100A at Tc. The device is housed in a Surface Mount TO-263 (D2PAK) package and is currently in Active product status with 34,413 pieces in stock.

Equivalent and substitute parts are identified based on matching electrical specifications and mechanical compatibility. Substitutes must maintain the same drain-to-source voltage rating, compatible continuous drain current ratings, identical package configuration, and surface mount technology to ensure direct replacement capability in circuit applications.

Key Parameters

Parameter	Value	Unit
Drain to Source Voltage (Vdss)	75	V
Continuous Drain Current @ 25°C (Ta)	10	A
Continuous Drain Current @ 25°C (Tc)	100	A
Drive Voltage (Max Rds On)	10	V
Rds On (Max) @ Id, Vgs	10.2	mOhm @ 30A, 10V
Gate Threshold Voltage Vgs(th) (Max) @ Id	4	V @ 250µA
Gate Charge (Qg) (Max) @ Vgs	136	nC @ 10V
Input Capacitance (Ciss) (Max) @ Vds	5640	pF @ 30V
Power Dissipation (Max) - Ta	2.1	W
Power Dissipation (Max) - Tc	268	W
Operating Temperature Range	-55 to 175	°C (TJ)
FET Type	N-Channel
Technology	MOSFET (Metal Oxide)
Package Type	TO-263-3, D2PAK (2 Leads + Tab)
Mounting Type	Surface Mount
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitute parts for the AOB470L are grouped based on the following critical electrical and mechanical parameters:

Primary Substitution Criteria:

Drain to Source Voltage (Vdss): 75V (exact match required)
Continuous Drain Current (Tc): 75A to 120A (meets or exceeds 100A Tc rating)
Drive Voltage: 10V (standard gate drive voltage)
Package Configuration: TO-263-3, D2PAK (2 Leads + Tab) Surface Mount
Operating Temperature Range: -55°C to 175°C (TJ)
Technology: N-Channel MOSFET (Metal Oxide)

Secondary Compatibility Parameters:

Gate Threshold Voltage Vgs(th): 2V to 4V @ specified Id
Maximum Gate Voltage Vgs: ±10V to ±25V
RoHS3 Compliance and MSL Level 1 rating

Substitute parts are organized into two categories: direct electrical equivalents with matching Vdss and Tc ratings, and functionally compatible alternatives with enhanced current handling or improved thermal performance characteristics.

Parameter Comparison

Part Number	Manufacturer	Vdss (V)	Id @ Tc (A)	Rds On (mOhm)	Qg (nC)	Ciss (pF)	Pd Tc (W)	Package	Status
AOB470L	Alpha & Omega Semiconductor	75	100	10.2 @ 30A, 10V	136 @ 10V	5640 @ 30V	268	TO-263 (D2PAK)	Active
BUK768R3-60E,118	Nexperia USA Inc.	60	75	8.3 @ 20A, 10V	43.1 @ 10V	2920 @ 25V	137	D2PAK	Active
BUK9609-75A,118	NXP USA Inc.	75	75	8.5 @ 25A, 10V	Not specified	8840 @ 25V	230	D2PAK	Active
FDB088N08	onsemi	75	120	8.8 @ 75A, 10V	118 @ 10V	6595 @ 25V	160	TO-263 (D2PAK)	Active
IRF1407STRLPBF	Infineon Technologies	75	100	7.8 @ 78A, 10V	250 @ 10V	5600 @ 25V	200	D2PAK	Active
IRF2807ZSTRLPBF	Infineon Technologies	75	75	9.4 @ 53A, 10V	110 @ 10V	3270 @ 25V	170	D2PAK	Not For New Designs
IRFS3607TRLPBF	Infineon Technologies	75	80	9 @ 46A, 10V	84 @ 10V	3070 @ 50V	140	D2PAK	Active
IXTA120N075T2	IXYS	75	120	7.7 @ 60A, 10V	78 @ 10V	4740 @ 25V	250	TO-263AA	Active
IXTA90N075T2	IXYS	75	90	10 @ 25A, 10V	54 @ 10V	3290 @ 25V	180	TO-263AA	Active
PSMN008-75B,118	Nexperia USA Inc.	75	75	8.5 @ 25A, 10V	122.8 @ 10V	5260 @ 25V	230	D2PAK	Active
STB140NF75T4	STMicroelectronics	75	120	7.5 @ 70A, 10V	218 @ 10V	5000 @ 25V	310	D2PAK	Active

Engineering Selection Recommendations

Direct Electrical Equivalents (Vdss 75V, Id 100A Tc):

The IRF1407STRLPBF from Infineon Technologies is the closest direct equivalent to the AOB470L. Both devices share identical 75V Vdss and 100A Tc ratings with compatible D2PAK packaging. The IRF1407STRLPBF exhibits lower on-resistance (7.8 mOhm vs. 10.2 mOhm) and is in Active product status, making it suitable for new designs requiring direct replacement.

Enhanced Current Handling Alternatives (Vdss 75V, Id 120A Tc):

Three devices provide enhanced continuous drain current at 120A Tc while maintaining 75V Vdss:

FDB088N08 (onsemi): PowerTrench® series, 160W Tc dissipation, Active status
IXTA120N075T2 (IXYS): TrenchT2™ series, 250W Tc dissipation, Active status
STB140NF75T4 (STMicroelectronics): STripFET™ III series, 310W Tc dissipation, Active status

These alternatives provide superior thermal performance and are recommended for applications requiring higher current capacity or improved thermal margins.

Reduced Voltage Alternatives (Vdss 60V):

The BUK768R3-60E,118 from Nexperia USA Inc. operates at 60V Vdss with 75A Tc rating. This device is suitable only for applications where the lower voltage rating is acceptable and where the reduced current capacity meets system requirements. AEC-Q101 automotive qualification is provided.

Devices Not Recommended for New Designs:

The IRF2807ZSTRLPBF carries "Not For New Designs" status and should not be selected for new circuit implementations, despite meeting electrical specifications.

Compliance and Qualification:

All recommended substitute parts maintain RoHS3 compliance and MSL Level 1 rating consistent with the AOB470L. Automotive-grade alternatives (BUK768R3-60E,118 and BUK9609-75A,118) include AEC-Q101 qualification for applications requiring automotive-level reliability.

Frequently Asked Questions (FAQ)

Q: Can the BUK768R3-60E,118 be used as a direct substitute for the AOB470L?

A: The BUK768R3-60E,118 operates at 60V Vdss compared to the AOB470L's 75V rating. This device is not a direct substitute for applications requiring the full 75V voltage margin. Use only in circuits where the lower voltage rating is acceptable and verified through design analysis.

Q: What is the primary difference between the IRF1407STRLPBF and the AOB470L?

A: Both devices share identical 75V Vdss and 100A Tc ratings with compatible D2PAK packaging. The IRF1407STRLPBF exhibits lower on-resistance (7.8 mOhm vs. 10.2 mOhm), resulting in reduced power dissipation and improved thermal performance. The IRF1407STRLPBF is the recommended direct equivalent.

Q: Why would I select a 120A device instead of the 100A AOB470L?

A: Devices rated for 120A Tc (FDB088N08, IXTA120N075T2, STB140NF75T4) provide enhanced current handling capacity and thermal performance margins. Selection depends on application requirements for current capacity, thermal dissipation, and design safety margins. These alternatives are suitable for applications requiring higher reliability or thermal headroom.

Q: Are all substitute parts available in the same package configuration?

A: All substitute parts are housed in TO-263-3 D2PAK (2 Leads + Tab) Surface Mount packages or equivalent variants (TO-263AA). Package pinout and footprint compatibility are maintained across all listed alternatives, enabling direct PCB substitution.

Q: What is the significance of the "Not For New Designs" status on the IRF2807ZSTRLPBF?

A: Devices marked "Not For New Designs" are in mature or end-of-life phases and should not be selected for new circuit implementations. While the IRF2807ZSTRLPBF meets electrical specifications, Infineon Technologies recommends alternative devices for new designs. Use only in legacy system maintenance or where existing inventory must be consumed.

Q: How do I determine which substitute part is best for my application?

A: Selection criteria include: (1) Vdss rating must equal or exceed 75V; (2) Continuous drain current (Tc) must meet or exceed application requirements; (3) On-resistance (Rds On) affects power dissipation and thermal performance; (4) Gate charge (Qg) impacts switching speed and driver requirements; (5) Product status should be Active for new designs; (6) Compliance certifications (RoHS3, AEC-Q101) must match system requirements.

Q: Can I use the IXTA90N075T2 as a substitute if my application requires only 90A continuous current?

A: Yes. The IXTA90N075T2 is rated for 90A Tc at 75V Vdss and is suitable for applications where the continuous drain current requirement does not exceed 90A. The device is in Active status and provides compatible D2PAK packaging. Verify that the 90A rating meets your application's maximum current specification.

Q: What is the difference between Ta and Tc current ratings?

A: Ta (ambient temperature) current rating applies when the device is cooled by ambient air circulation. Tc (case temperature) current rating applies when the device case is actively cooled or mounted on a heat sink. The AOB470L is rated for 10A Ta and 100A Tc. Substitute parts should be selected based on the cooling method used in your application.

Q: Are automotive-qualified alternatives available?

A: Yes. The BUK768R3-60E,118 and BUK9609-75A,118 include AEC-Q101 automotive qualification. These devices are suitable for automotive applications requiring formal qualification documentation. Note that BUK768R3-60E,118 operates at 60V Vdss and is not a direct voltage equivalent.

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