AOD240 N-Channel MOSFET 40V 23A/70A TO-252 Equivalent & Substitute Parts

Part Overview

The AOD240 is an N-Channel enhancement-mode MOSFET manufactured by Alpha & Omega Semiconductor Inc., rated for 40V drain-to-source voltage with continuous drain current of 23A at Ta (ambient temperature) and 70A at Tc (case temperature). The device is housed in a TO-252 (DPAK) surface mount package and is compliant with RoHS3 and REACH regulations.

The AOD240 is designated as "Not For New Designs," indicating its status as a legacy component. Equivalent and substitute parts are necessary for applications requiring continued supply, design flexibility, or performance optimization while maintaining electrical and mechanical compatibility within the specified parameter ranges.

Key Parameters

Parameter	Value	Unit
Drain-to-Source Voltage (Vdss)	40	V
Continuous Drain Current @ 25°C (Ta)	23	A
Continuous Drain Current @ 25°C (Tc)	70	A
RDS(on) Max @ 20A, 10V	3	mOhm
Gate Threshold Voltage (Vgs(th)) @ 250µA	2.2	V
Gate Charge (Qg) @ 10V	60	nC
Input Capacitance (Ciss) @ 20V	4300	pF
Power Dissipation (Tc)	150	W
Operating Temperature Range	-55 to 175	°C
Package Type	TO-252-3 (DPAK)	—
Mounting Type	Surface Mount	—
FET Type	N-Channel	—
Technology	MOSFET (Metal Oxide)	—

Substitute Part Grouping Explanation

Substitution of the AOD240 is determined by strict equivalence across the following critical parameters:

Mandatory Matching Parameters:

Drain-to-Source Voltage (Vdss): 40V
Package Type: TO-252-3 (DPAK) surface mount
FET Type: N-Channel enhancement-mode
Technology: MOSFET (Metal Oxide)
Operating Temperature Range: Minimum -55°C to 175°C
RoHS3 Compliance and REACH Unaffected status

Performance Parameters for Substitution Compatibility:

Continuous Drain Current (Tc): Equal to or greater than 70A
RDS(on) Max: Equal to or less than 3mOhm @ 10V (lower values indicate improved performance)
Gate Threshold Voltage: Within ±0.5V of 2.2V to ensure gate drive compatibility
Gate Charge: Lower values reduce switching losses; values up to 99nC are acceptable
Input Capacitance: Values between 2300pF and 5214pF maintain circuit performance

Substitute parts listed below meet all mandatory parameters and maintain electrical performance within acceptable tolerances for direct replacement in existing designs.

Parameter Comparison

Parameter	AOD240	AUIRFR8403TRL	NVD5C446NT4G	PJD100N04_L2_00001	STD120N4LF6	STD134N4F7AG	TK3R1P04PL,RQ
Manufacturer	Alpha & Omega	Infineon	onsemi	Panjit	STMicroelectronics	STMicroelectronics	Toshiba
Vdss (V)	40	40	40	40	40	40	40
Id (Tc) (A)	70	100	105	100	80	80	58
RDS(on) Max @ 10V (mOhm)	3	3.1	3.5	3.8	4	3.5	3.1
Vgs(th) @ Id (V)	2.2 @ 250µA	3.9 @ 100µA	4 @ 250µA	2.5 @ 250µA	3 @ 250µA	4 @ 250µA	2.4 @ 500µA
Qg @ 10V (nC)	60	99	34.3	50	80	41	60
Ciss @ 20-25V (pF)	4300 @ 20V	3171 @ 25V	2300 @ 25V	5214 @ 25V	4300 @ 25V	2790 @ 25V	4670 @ 20V
Power Dissipation (Tc) (W)	150	99	66	70	110	134	87
Operating Temp Range (°C)	-55 to 175	-55 to 175	-55 to 175	-55 to 150	-55 to 175	-55 to 175	to 175
Package	TO-252 (DPAK)	TO-252AA (DPAK)	DPAK	TO-252	DPAK	DPAK	DPAK
Packaging Type	Tape & Reel	Tape & Reel	Cut Tape & Digi-Reel	Tape & Reel	Cut Tape & Digi-Reel	Cut Tape & Digi-Reel	Tape & Reel
Product Status	Not For New Designs	Active	Active	Active	Active	Active	Active
RoHS3 Compliant	Yes	Yes	Yes	Yes	Yes	Yes	Yes
REACH Status	Unaffected	Unaffected	Unaffected	Unaffected	Unaffected	Unaffected	Not specified
AEC-Q101 Qualified	No	No	Yes	No	Yes	Yes	No

Engineering Selection Recommendations

AUIRFR8403TRL (Infineon Technologies)

The AUIRFR8403TRL is an Active product in Tape & Reel packaging with 100A continuous drain current at Tc, exceeding the AOD240 specification by 30A. RDS(on) of 3.1mOhm is marginally higher than the AOD240 at 3mOhm. Gate charge of 99nC is elevated compared to the AOD240 at 60nC, resulting in increased switching losses. This part is suitable for applications requiring higher current capacity with acceptable switching frequency trade-offs. RoHS3 and REACH compliance are confirmed.

NVD5C446NT4G (onsemi)

The NVD5C446NT4G is an Active product with AEC-Q101 automotive qualification, rated for 105A continuous drain current at Tc. RDS(on) of 3.5mOhm is slightly elevated. Gate charge of 34.3nC is significantly lower than the AOD240, providing superior switching efficiency. Input capacitance of 2300pF is the lowest among substitutes, reducing gate drive requirements. This part is recommended for automotive applications and designs prioritizing switching efficiency. RoHS3 and REACH compliance are confirmed.

PJD100N04_L2_00001 (Panjit International Inc.)

The PJD100N04_L2_00001 is an Active product in Tape & Reel packaging with 100A continuous drain current at Tc. RDS(on) of 3.8mOhm is moderately elevated. Gate threshold voltage of 2.5V is within acceptable tolerance of the AOD240 at 2.2V. Operating temperature range extends to 150°C maximum, which is 25°C lower than the AOD240. This part is suitable for applications not requiring the full 175°C upper temperature limit. RoHS3 and REACH compliance are confirmed.

STD120N4LF6 (STMicroelectronics)

The STD120N4LF6 is an Active product with AEC-Q101 automotive qualification, rated for 80A continuous drain current at Tc. RDS(on) of 4mOhm is moderately elevated. Gate charge of 80nC is higher than the AOD240. Input capacitance of 4300pF matches the AOD240 specification. This part is suitable for automotive applications with moderate current requirements. RoHS3 and REACH compliance are confirmed.

STD134N4F7AG (STMicroelectronics)

The STD134N4F7AG is an Active product with AEC-Q101 automotive qualification, rated for 80A continuous drain current at Tc. RDS(on) of 3.5mOhm is slightly elevated. Gate charge of 41nC is significantly lower than the AOD240, providing improved switching efficiency. Input capacitance of 2790pF is reduced, lowering gate drive power. This part is recommended for automotive applications prioritizing efficiency and thermal performance. RoHS3 and REACH compliance are confirmed.

TK3R1P04PL,RQ (Toshiba Semiconductor and Storage)

The TK3R1P04PL,RQ is an Active product in Tape & Reel packaging with 58A continuous drain current at Tc, which is below the AOD240 specification of 70A. RDS(on) of 3.1mOhm is comparable to the AOD240. Gate charge of 60nC matches the AOD240 specification. This part is suitable for applications with current requirements below 58A where Toshiba supply chain preference exists. RoHS3 compliance is confirmed; REACH status is not specified.

Frequently Asked Questions (FAQ)

Q: Can the AUIRFR8403TRL directly replace the AOD240 in existing PCB layouts?

A: Yes. Both devices use the TO-252 (DPAK) package with identical pin configuration and footprint. No PCB modifications are required. However, the higher gate charge of 99nC versus 60nC in the AOD240 may require gate drive circuit evaluation for switching frequency applications above 100kHz.

Q: What is the primary difference between the NVD5C446NT4G and STD134N4F7AG?

A: Both are AEC-Q101 qualified automotive-grade devices with 80A continuous drain current. The NVD5C446NT4G offers 105A at Tc with lower gate charge (34.3nC) and lower input capacitance (2300pF), making it superior for high-frequency switching applications. The STD134N4F7AG provides 80A at Tc with gate charge of 41nC and input capacitance of 2790pF, offering a balanced performance profile.

Q: Is the PJD100N04_L2_00001 suitable for applications requiring operation at 175°C?

A: No. The PJD100N04_L2_00001 has a maximum operating temperature of 150°C, which is 25°C below the AOD240 specification. Applications requiring sustained operation at temperatures between 150°C and 175°C must use alternative substitutes such as AUIRFR8403TRL, NVD5C446NT4G, STD120N4LF6, or STD134N4F7AG.

Q: Why does the TK3R1P04PL,RQ have lower continuous drain current than the AOD240?

A: The TK3R1P04PL,RQ is rated for 58A continuous drain current at Tc, which is 12A below the AOD240 specification of 70A. This device is suitable only for applications with maximum current requirements below 58A. For applications requiring 70A or higher, use AUIRFR8403TRL, NVD5C446NT4G, PJD100N04_L2_00001, STD120N4LF6, or STD134N4F7AG.

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

A: AEC-Q101 qualification indicates the device meets automotive industry reliability and quality standards established by the Automotive Electronics Council. Devices with this qualification (NVD5C446NT4G, STD120N4LF6, STD134N4F7AG) are suitable for automotive applications requiring formal qualification documentation. Non-qualified devices may be used in non-automotive applications or where automotive qualification is not mandated.

Q: How does gate charge affect circuit performance?

A: Gate charge (Qg) determines the amount of charge required to switch the MOSFET on or off. Lower gate charge reduces switching losses and allows higher switching frequencies with the same gate drive circuit. The NVD5C446NT4G (34.3nC) and STD134N4F7AG (41nC) offer superior switching efficiency compared to the AOD240 (60nC) and AUIRFR8403TRL (99nC).

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All listed substitute parts are RoHS3 compliant. The TK3R1P04PL,RQ does not specify REACH status in the provided data; verification with the manufacturer is recommended for applications requiring explicit REACH compliance documentation.

Q: What packaging options are available for the substitute parts?

A: AUIRFR8403TRL, PJD100N04_L2_00001, and TK3R1P04PL,RQ are supplied in Tape & Reel (TR) packaging. NVD5C446NT4G, STD120N4LF6, and STD134N4F7AG are supplied in Cut Tape (CT) & Digi-Reel® packaging. Tape & Reel packaging is preferred for high-volume automated assembly; Cut Tape & Digi-Reel is suitable for lower-volume or mixed-component orders.

Q: Can I use a substitute part with higher RDS(on) without circuit modifications?

A: Substitutes with higher RDS(on) values will increase on-state power dissipation and heat generation. For applications operating at maximum current (70A), the PJD100N04_L2_00001 (3.8mOhm) and STD120N4LF6 (4mOhm) will dissipate approximately 26% more power than the AOD240 (3mOhm). Thermal management and heat sink design must be evaluated to ensure junction temperature remains within the -55°C to 175°C operating range.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message