AOB288L N-Channel MOSFET 80V 10.5A/46A TO-263 Equivalent & Substitute Parts

Part Overview

The AOB288L is an N-Channel metal oxide semiconductor field-effect transistor (MOSFET) manufactured by Alpha & Omega Semiconductor Inc., rated for 80V drain-to-source voltage with continuous drain current of 10.5A at Ta (ambient temperature) and 46A at Tc (case temperature). The device is housed in a Surface Mount TO-263 (D2PAK) package and is classified as Active product status with full RoHS3 compliance.

Equivalent and substitute parts are identified when design requirements necessitate alternative sourcing due to inventory constraints, supply chain considerations, or when application parameters permit operation within the electrical and mechanical specifications of alternative devices. Substitute parts must maintain compatibility with the TO-263 package family and satisfy the core voltage and current ratings required for the application.

Key Parameters

Parameter	AOB288L Specification	Unit
Drain-to-Source Voltage (Vdss)	80	V
Continuous Drain Current @ 25°C (Ta)	10.5	A
Continuous Drain Current @ 25°C (Tc)	46	A
RDS(on) Max @ 20A, 10V	8.9	mOhm
Gate Threshold Voltage (Vgs(th)) @ 250µA	3.4	V
Gate Charge (Qg) @ 10V	38	nC
Input Capacitance (Ciss) @ 40V	1871	pF
Power Dissipation (Tc)	93.5	W
Operating Temperature Range	-55 to 175	°C
Package Type	TO-263 (D2PAK)	Surface Mount
RoHS Status	ROHS3 Compliant	—

Substitute Part Grouping Explanation

Substitute parts for the AOB288L are selected based on the following substitution criteria:

Primary Substitution Parameters:

Drain-to-Source Voltage (Vdss) equal to or greater than 80V
Continuous Drain Current (Tc) equal to or greater than 46A
Package compatibility with TO-263 family (D2PAK or TO-263-3 variants)
Surface Mount mounting type
Operating temperature range encompassing -55°C to 175°C
RoHS3 compliance and REACH unaffected status

Secondary Compatibility Parameters:

RDS(on) characteristics suitable for switching applications
Gate charge and input capacitance within acceptable ranges for driver compatibility
Maximum gate voltage (Vgs) rating of ±10V or greater

Substitute parts are grouped into two categories:

Category A - Direct 80V Voltage Class Substitutes: Parts maintaining 80V Vdss rating with enhanced current handling and thermal performance compared to the AOB288L. These include BUK9611-80E,118, PSMN012-80BS,118, and PSMN8R7-80BS,118.

Category B - Higher Voltage Class Substitutes: Parts rated for 100V Vdss, providing additional voltage margin while maintaining or exceeding current and thermal specifications. These include IXFA130N10T2, IXTA130N10T7, and PSMN9R5-100BS,118.

Parameter Comparison

Parameter	AOB288L	BUK9611-80E,118	IXFA130N10T2	IXTA130N10T7	PSMN012-80BS,118	PSMN8R7-80BS,118	PSMN9R5-100BS,118	Unit
Vdss	80	80	100	100	80	80	100	V
Id (Tc)	46	75	130	130	74	90	89	A
RDS(on) Max @ 10V	8.9	10	9.1	9.1	11	8.7	9.6	mOhm
Vgs(th) Max	3.4	2.1	4.5	4.5	4	4	4	V
Qg @ 10V	38	48.8	130	104	43	52	82	nC
Ciss	1871	7149	6600	5080	2782	3346	4454	pF
Power Dissipation (Tc)	93.5	182	360	360	148	170	211	W
Operating Temp Range	-55 to 175	-55 to 175	-55 to 175	-55 to 175	-55 to 175	-55 to 175	-55 to 175	°C
Package	TO-263 (D2PAK)	D2PAK	TO-263AA (IXFA)	TO-263-7 (IXTA)	D2PAK	D2PAK	D2PAK	—
RoHS Status	ROHS3	ROHS3	ROHS3	ROHS3	ROHS3	ROHS3	ROHS3	—

Engineering Selection Recommendations

BUK9611-80E,118 (Nexperia USA Inc.)

The BUK9611-80E,118 is a direct voltage-class equivalent maintaining 80V Vdss rating with 75A continuous drain current capability. This part exceeds the AOB288L current specification by 63% and provides 182W power dissipation at Tc. The device carries AEC-Q101 automotive qualification and TrenchMOS™ technology designation. RoHS3 compliance and unlimited moisture sensitivity level (MSL 1) are confirmed. This substitute is suitable for applications requiring enhanced thermal performance within the 80V operating envelope.

IXFA130N10T2 (IXYS)

The IXFA130N10T2 operates at 100V Vdss with 130A continuous drain current and 360W power dissipation at Tc. The device employs HiPerFET™ and TrenchT2™ technology. Gate charge of 130 nC at 10V is elevated compared to the AOB288L, requiring driver circuit evaluation. RoHS3 compliance and MSL 1 rating are confirmed. This substitute provides significant current and thermal margin for applications tolerating higher voltage rating and increased gate charge.

IXTA130N10T7 (IXYS)

The IXTA130N10T7 is rated for 100V Vdss with 130A continuous drain current and 360W power dissipation at Tc. The device uses Trench technology and is packaged in TO-263-7 (IXTA) configuration with six leads plus tab. Gate charge of 104 nC at 10V is lower than the IXFA130N10T2 variant. RoHS3 compliance and MSL 1 rating are confirmed. Package pinout differences require circuit board layout verification prior to substitution.

PSMN012-80BS,118 (Nexperia USA Inc.)

The PSMN012-80BS,118 maintains 80V Vdss rating with 74A continuous drain current and 148W power dissipation at Tc. RDS(on) of 11 mOhm at 15A and 10V is slightly elevated compared to the AOB288L. RoHS3 compliance and MSL 1 rating are confirmed. This substitute is suitable for applications where current requirements do not exceed 74A and thermal dissipation is within 148W limits.

PSMN8R7-80BS,118 (Nexperia USA Inc.)

The PSMN8R7-80BS,118 operates at 80V Vdss with 90A continuous drain current and 170W power dissipation at Tc. RDS(on) of 8.7 mOhm at 10A and 10V is comparable to the AOB288L. RoHS3 compliance and MSL 1 rating are confirmed. This substitute provides enhanced current handling with minimal RDS(on) degradation and is suitable for applications requiring 80V operation with current demands up to 90A.

PSMN9R5-100BS,118 (Nexperia USA Inc.)

The PSMN9R5-100BS,118 is rated for 100V Vdss with 89A continuous drain current and 211W power dissipation at Tc. RDS(on) of 9.6 mOhm at 15A and 10V is comparable to the AOB288L. RoHS3 compliance and MSL 1 rating are confirmed. This substitute provides voltage margin and thermal performance enhancement suitable for applications tolerating 100V operation.

Frequently Asked Questions (FAQ)

Q: Can the AOB288L be directly replaced with any of these substitute parts without circuit modification?

A: Direct replacement is possible only when the application circuit is designed to accommodate the electrical characteristics of the substitute part. Package compatibility (TO-263 family) is confirmed for all listed substitutes. However, differences in gate charge (Qg), input capacitance (Ciss), and gate threshold voltage (Vgs(th)) may require driver circuit evaluation. The IXTA130N10T7 uses a different pinout (TO-263-7 with six leads) and requires circuit board layout verification.

Q: What is the primary difference between the 80V and 100V rated substitutes?

A: The 80V substitutes (BUK9611-80E,118, PSMN012-80BS,118, PSMN8R7-80BS,118) maintain the same voltage rating as the AOB288L and are suitable for applications with maximum operating voltages at or below 80V. The 100V substitutes (IXFA130N10T2, IXTA130N10T7, PSMN9R5-100BS,118) provide additional voltage margin and are suitable for applications with maximum operating voltages up to 100V. Selection depends on the actual circuit voltage requirements.

Q: How do gate charge differences affect driver circuit compatibility?

A: Gate charge (Qg) determines the total charge required to switch the MOSFET from off to on state. The AOB288L specifies 38 nC at 10V. Substitute parts range from 43 nC to 130 nC. Higher gate charge requires greater driver current or longer switching times. Driver circuits must be evaluated to confirm adequate gate current supply and acceptable switching frequency performance with the selected substitute part.

Q: Are all substitute parts qualified for automotive applications?

A: Only the BUK9611-80E,118 carries explicit AEC-Q101 automotive qualification. The remaining substitute parts are listed as Active product status with RoHS3 compliance but do not specify automotive qualification in the provided data. Application requirements for automotive qualification must be confirmed with the device manufacturer.

Q: What is the significance of the TO-263-7 package variant used by the IXTA130N10T7?

A: The IXTA130N10T7 uses TO-263-7 packaging with six leads plus tab, compared to the standard TO-263-3 (D2PAK) with two leads plus tab used by the AOB288L and most other substitutes. The additional leads provide alternative connection options but require different circuit board layout and footprint design. Direct board-level substitution is not possible without layout modification.

Q: Which substitute part provides the best thermal performance?

A: The IXFA130N10T2 and IXTA130N10T7 both provide 360W power dissipation at Tc, representing the highest thermal capability among the listed substitutes. The PSMN9R5-100BS,118 provides 211W, and the PSMN8R7-80BS,118 provides 170W. Selection should be based on actual application thermal requirements and heat dissipation capability of the circuit board design.

Q: Can RDS(on) differences between substitute parts affect circuit performance?

A: Yes. RDS(on) directly affects conduction losses and heat generation. The AOB288L specifies 8.9 mOhm at 20A and 10V. Substitute parts range from 8.7 mOhm to 11 mOhm. Lower RDS(on) values reduce conduction losses and heat dissipation. Applications with high continuous current or stringent thermal budgets should prioritize substitutes with RDS(on) values equal to or lower than the AOB288L specification.

Q: What packaging considerations apply when selecting a substitute part?

A: All substitute parts except the IXTA130N10T7 use standard TO-263-3 (D2PAK) packaging compatible with the AOB288L footprint. The IXTA130N10T7 requires TO-263-7 footprint with six leads, necessitating circuit board redesign. Tape & Reel (TR) and Tube packaging options are available for different manufacturing processes. Moisture sensitivity level (MSL 1 - Unlimited) is consistent across all parts, indicating no special storage or handling requirements.

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