IRFR2307Z N-Channel MOSFET Equivalent & Substitute Parts

Part Overview

The IRFR2307Z is an N-Channel MOSFET manufactured by Infineon Technologies, rated for 75V drain-to-source voltage with 42A continuous drain current at 25°C. This device is housed in a TO-252-3 (DPAK) surface mount package and is classified as obsolete. The HEXFET® series component delivers 110W maximum power dissipation and operates across a temperature range of -55°C to 175°C.

Due to its obsolete product status, equivalent and substitute parts are necessary for ongoing design support, production continuity, and component sourcing. Substitute devices must maintain electrical compatibility within the specified parameter tolerances while meeting current manufacturing and compliance standards.

Key Parameters

Parameter	Value	Unit
Drain-to-Source Voltage (Vdss)	75	V
Continuous Drain Current (Id) @ 25°C	42	A (Tc)
On-State Resistance (Rds On) @ 32A, 10V	16	mOhm
Gate Threshold Voltage (Vgs(th)) @ 100µA	4	V
Gate Charge (Qg) @ 10V	75	nC
Power Dissipation (Max)	110	W (Tc)
Operating Temperature Range	-55 to 175	°C (TJ)
Package Type	TO-252-3 (DPAK)	Surface Mount
Gate Voltage (Vgs) Max	±20	V

Substitute Part Grouping Explanation

Substitution of the IRFR2307Z is determined by the following critical electrical parameters:

Primary Compatibility Criteria:

Drain-to-Source Voltage (Vdss): Substitute must equal or exceed 75V
Continuous Drain Current (Id): Substitute must support minimum 42A at 25°C
On-State Resistance (Rds On): Substitute must not significantly exceed 16mOhm at rated conditions
Package Type: All substitutes must use TO-252-3 (DPAK) surface mount configuration
Gate Voltage Rating (Vgs): Substitute must support ±20V or greater

Secondary Compatibility Criteria:

Operating Temperature Range: Substitute must cover -55°C to 175°C minimum
Gate Threshold Voltage: Substitute must fall within acceptable switching characteristics
Power Dissipation: Substitute must handle thermal requirements of the application

Substitutes are grouped into two categories based on voltage and current ratings:

Category A - Direct Voltage Match (75V): STD45NF75T4 and BUK7214-75B,118 maintain the exact 75V Vdss rating with comparable or superior current handling.

Category B - Voltage Derating (55V-100V): IPD35N10S3L26ATMA1, NP52N055SUG-E1-AY, STD35NF06LT4, and STD60NF55LAT4 operate at different voltage ratings but provide electrical substitution for applications with reduced voltage stress or where higher voltage margin is acceptable.

Parameter Comparison

Part Number	Manufacturer	Vdss (V)	Id @ 25°C (A)	Rds On (mOhm)	Qg (nC)	Pd Max (W)	Status	RoHS
IRFR2307Z	Infineon	75	42	16 @ 32A, 10V	75 @ 10V	110	Obsolete	Non-compliant
STD45NF75T4	STMicroelectronics	75	40	24 @ 20A, 10V	80 @ 10V	125	Active	ROHS3
BUK7214-75B,118	Nexperia USA Inc.	75	70	14 @ 25A, 10V	41 @ 10V	158	Obsolete	ROHS3
IPD35N10S3L26ATMA1	Infineon	100	35	24 @ 35A, 10V	39 @ 10V	71	Active	ROHS3
STD35NF06LT4	STMicroelectronics	60	35	17 @ 17.5A, 10V	33 @ 4.5V	80	Active	ROHS3
STD60NF55LAT4	STMicroelectronics	55	60	15 @ 30A, 10V	40 @ 5V	110	Active	ROHS3
NP52N055SUG-E1-AY	Renesas Electronics	55	52	14 @ 26A, 10V	57 @ 10V	56	Active	ROHS3

Engineering Selection Recommendations

For Direct Replacement (75V Voltage Class):

STD45NF75T4 is the primary active substitute. It maintains the 75V Vdss rating with 40A continuous drain current, meeting the IRFR2307Z current requirement of 42A within acceptable tolerance. The device is manufactured by STMicroelectronics, carries ROHS3 compliance, and holds active product status. On-state resistance of 24mOhm at 20A, 10V represents a minor increase from the original 16mOhm specification but remains within acceptable operating margins for most applications. Power dissipation capability of 125W exceeds the original 110W rating, providing thermal headroom.

BUK7214-75B,118 offers superior electrical performance with 70A continuous drain current and lower on-state resistance of 14mOhm at 25A, 10V. However, this device is classified as obsolete despite ROHS3 compliance. It is suitable only when inventory availability is confirmed and long-term sourcing is not a constraint.

For Voltage-Derating Applications (55V-100V Voltage Class):

STD60NF55LAT4 provides equivalent power dissipation (110W) with superior current handling (60A) at a reduced voltage rating of 55V. This device includes AEC-Q101 automotive qualification and is recommended for applications where the circuit voltage stress does not exceed 55V. The lower on-state resistance of 15mOhm at 30A, 10V improves efficiency.

IPD35N10S3L26ATMA1 operates at 100V with 35A continuous drain current, suitable for applications requiring voltage margin above 75V. The OptiMOS™ series technology delivers lower gate charge (39nC) compared to the original 75nC, reducing switching losses. This device is active and ROHS3 compliant.

STD35NF06LT4 is rated for 60V with 35A continuous drain current. The STripFET™ II series offers active product status and ROHS3 compliance. This substitute is appropriate for lower-voltage circuit implementations.

NP52N055SUG-E1-AY from Renesas Electronics provides 55V, 52A rating with active product status and ROHS3 compliance. The device includes AEC-Q101 automotive qualification, making it suitable for automotive applications within the 55V voltage class.

Compliance and Sourcing Considerations:

All recommended active substitutes carry ROHS3 compliance, addressing the non-compliant status of the original IRFR2307Z. Moisture sensitivity level remains at MSL 1 (Unlimited) across all substitutes, maintaining handling compatibility. All devices retain the TO-252-3 (DPAK) package configuration, ensuring mechanical and thermal interface compatibility.

Frequently Asked Questions (FAQ)

Q: Can STD45NF75T4 directly replace IRFR2307Z in all applications?

A: STD45NF75T4 is electrically compatible for most applications. Both devices share the 75V Vdss rating and operate within the same temperature range (-55°C to 175°C). The 40A continuous drain current of STD45NF75T4 meets the 42A requirement of IRFR2307Z within acceptable tolerance. The primary difference is on-state resistance: STD45NF75T4 measures 24mOhm versus 16mOhm for the original. Applications with tight thermal budgets or high-frequency switching should evaluate power dissipation impact. Both devices use identical TO-252-3 (DPAK) packaging.

Q: What is the difference between the 75V and 55V substitute options?

A: The 75V substitutes (STD45NF75T4, BUK7214-75B,118) maintain the original voltage rating and are suitable for circuits designed around 75V operation. The 55V substitutes (STD60NF55LAT4, NP52N055SUG-E1-AY) operate at reduced voltage stress and are appropriate only when the application circuit voltage does not exceed 55V. Selecting a lower-voltage device for a 75V circuit creates risk of device failure. Conversely, using a higher-voltage device in a lower-voltage circuit is acceptable and provides voltage margin.

Q: Why is BUK7214-75B,118 listed as obsolete despite being a substitute?

A: BUK7214-75B,118 is included in the substitute list because it was originally specified as an equivalent by Infineon. However, the device is now classified as obsolete by Nexperia USA Inc. While it offers superior electrical performance (70A, 14mOhm Rds On), sourcing is limited to existing inventory. This substitute is viable only when confirmed stock availability exists and the application does not require long-term component availability.

Q: Are all substitutes RoHS compliant?

A: All active substitute parts listed carry ROHS3 compliance. The original IRFR2307Z is marked as RoHS non-compliant. If RoHS compliance is a design requirement, select from active substitutes: STD45NF75T4, IPD35N10S3L26ATMA1, STD35NF06LT4, STD60NF55LAT4, or NP52N055SUG-E1-AY.

Q: What is the impact of different gate charge (Qg) values on circuit design?

A: Gate charge affects switching speed and driver power requirements. The original IRFR2307Z specifies 75nC at 10V. Substitutes range from 33nC (STD35NF06LT4) to 80nC (STD45NF75T4). Lower gate charge reduces switching losses and driver current demand, improving efficiency. Higher gate charge requires stronger gate drive capability. Gate driver circuits must be evaluated to confirm adequate current sourcing and sinking capability for the selected substitute.

Q: Can I use IPD35N10S3L26ATMA1 in a 75V circuit?

A: Yes. IPD35N10S3L26ATMA1 is rated for 100V Vdss, which exceeds the 75V requirement. Operating this device at 75V provides voltage margin and is electrically safe. However, the continuous drain current is 35A, which is below the original 42A specification. This substitute is suitable only for applications where 35A current capacity is sufficient. The lower power dissipation (71W versus 110W) may also limit thermal performance in high-power applications.

Q: What packaging considerations apply to these substitutes?

A: All listed substitutes use TO-252-3 (DPAK) surface mount packaging, identical to the original IRFR2307Z. Physical dimensions, PCB footprint, and thermal interface characteristics are compatible. No layout or assembly modifications are required for package compatibility. Moisture sensitivity level (MSL 1 - Unlimited) is consistent across all devices, maintaining identical handling and storage requirements.

Q: Which substitute offers the best thermal performance?

A: BUK7214-75B,118 provides the highest power dissipation rating at 158W, followed by STD45NF75T4 at 125W. Both exceed the original 110W specification. However, BUK7214-75B,118 is obsolete. For active products, STD45NF75T4 and STD60NF55LAT4 both deliver 125W and 110W respectively, providing adequate thermal headroom for most applications. Actual thermal performance depends on PCB layout, copper area, and thermal management design.

Q: Are automotive-qualified substitutes available?

A: Yes. BUK7214-75B,118 (75V class) and STD60NF55LAT4 (55V class) both carry AEC-Q101 automotive qualification. NP52N055SUG-E1-AY (55V class) also includes AEC-Q101 qualification. These devices are suitable for automotive applications requiring formal qualification documentation. The original IRFR2307Z does not carry automotive qualification.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message