IPD70P04P409ATMA1 P-Channel MOSFET Equivalent & Substitute Parts

Part Overview

The IPD70P04P409ATMA1 is a P-Channel MOSFET manufactured by Infineon Technologies, rated for 40V drain-source voltage and 73A continuous drain current in a TO-252-3 surface mount package. This device is classified as "Not For New Designs" and belongs to the OptiMOS™ series. Due to its discontinued design status, equivalent and substitute parts with matching or superior electrical and mechanical characteristics are available from Infineon Technologies and other manufacturers. Substitutes must maintain compatibility with the TO-252-3 package footprint and preserve critical electrical parameters including voltage rating, current capacity, and thermal characteristics.

Key Parameters

Parameter	Value	Unit
Drain to Source Voltage (Vdss)	40	V
Continuous Drain Current (Id) @ 25°C	73	A (Tc)
RDS(on) Max @ 70A, 10V	8.9	mOhm
Gate Threshold Voltage (Vgs(th)) Max @ 120µA	4	V
Gate Charge (Qg) Max @ 10V	70	nC
Power Dissipation Max (Tc)	75	W
Operating Temperature Range	-55 to 175	°C (TJ)
Package Type	TO-252-3, DPAK	Surface Mount
Qualification	AEC-Q101	Automotive

Substitute Part Grouping Explanation

Substitution eligibility for the IPD70P04P409ATMA1 is determined by the following criteria:

Primary Compatibility Requirements:

Drain-Source Voltage (Vdss): Must equal or exceed 40V
FET Type: P-Channel configuration required
Package: TO-252-3 surface mount footprint
Technology: Metal Oxide MOSFET
Mounting: Surface mount only

Secondary Electrical Compatibility:

Continuous drain current must support 73A or higher at 25°C
RDS(on) characteristics must not degrade circuit performance
Gate threshold voltage must fall within acceptable switching parameters
Operating temperature range must encompass -55°C to 175°C minimum
Automotive qualification (AEC-Q101) preferred for grade consistency

Regulatory & Compliance:

RoHS3 compliance required
MSL rating of 1 (Unlimited) acceptable
ECCN and HTSUS classifications must align

Three substitute parts meet these criteria with varying performance profiles and manufacturer sources.

Parameter Comparison

Parameter	IPD70P04P409ATMA1 (Main)	IPD70P04P409ATMA2	DMP4015SK3Q-13	SQD90P04-9M4L_GE3
Manufacturer	Infineon Technologies	Infineon Technologies	Diodes Incorporated	Vishay Siliconix
Vdss (V)	40	40	40	40
Id @ 25°C (A)	73 (Tc)	73 (Tc)	35 (Tc)	90 (Tc)
RDS(on) Max @ 10V (mOhm)	8.9 @ 70A	8.9 @ 70A	11 @ 9.8A	9.4 @ 17A
Vgs(th) Max (V)	4 @ 120µA	4 @ 120µA	2.5 @ 250µA	2.5 @ 250µA
Gate Charge Qg Max (nC)	70 @ 10V	70 @ 10V	47.5 @ 5V	155 @ 10V
Power Dissipation Max (W)	75 (Tc)	75 (Tc)	3.5 (Ta)	136 (Tc)
Operating Temperature (°C)	-55 to 175	-55 to 175	-55 to 150	-55 to 175
Package	TO-252-3, DPAK	TO-252-3, DPAK	TO-252-3, DPAK	TO-252AA, DPAK
Product Status	Not For New Designs	Active	Active	Active
AEC-Q101	Yes	Yes	No	Yes
Series	OptiMOS™	OptiMOS®-P2	-	TrenchFET®

Engineering Selection Recommendations

IPD70P04P409ATMA2 (Infineon Technologies)

This part represents the direct manufacturer upgrade path. It maintains identical electrical specifications (40V, 73A, 8.9mOhm RDS(on), 70nC gate charge) while transitioning from "Not For New Designs" to "Active" product status. The OptiMOS®-P2 series designation indicates an improved generation within the same product family. Both parts share identical package geometry (TO-252-3, DPAK), thermal characteristics (75W), and automotive qualification (AEC-Q101). Operating temperature range remains -55°C to 175°C. This substitute is recommended for direct replacement in existing designs and mandatory for new designs requiring Infineon P-Channel MOSFETs in this voltage and current class.

SQD90P04-9M4L_GE3 (Vishay Siliconix)

This TrenchFET® device provides superior current handling (90A vs. 73A) and power dissipation (136W vs. 75W) while maintaining the 40V voltage rating and TO-252-3 package compatibility. RDS(on) is marginally improved (9.4mOhm vs. 8.9mOhm) at different measurement conditions. Gate charge is significantly higher (155nC vs. 70nC), indicating increased switching losses. Operating temperature range matches the main part (-55°C to 175°C). AEC-Q101 automotive qualification is present. This substitute is suitable for applications requiring higher current capacity or thermal headroom, provided gate drive circuitry can accommodate the increased gate charge.

DMP4015SK3Q-13 (Diodes Incorporated)

This part exhibits reduced current capacity (35A Tc vs. 73A) and significantly lower power dissipation (3.5W Ta vs. 75W Tc). RDS(on) is higher (11mOhm vs. 8.9mOhm), and gate charge is lower (47.5nC vs. 70nC). Operating temperature maximum is limited to 150°C versus 175°C. AEC-Q101 qualification is absent. This substitute is not recommended for direct replacement due to insufficient current rating and thermal capacity. It may be considered only for applications with reduced current requirements (≤35A) and lower thermal loads, with explicit verification of design margins.

Frequently Asked Questions (FAQ)

Q: Can IPD70P04P409ATMA2 be used as a direct replacement for IPD70P04P409ATMA1?

A: Yes. Both parts share identical electrical specifications (40V, 73A, 8.9mOhm RDS(on)), package geometry (TO-252-3), thermal rating (75W), and automotive qualification (AEC-Q101). The primary difference is product status: IPD70P04P409ATMA2 is Active while IPD70P04P409ATMA1 is Not For New Designs. No circuit modifications are required.

Q: What is the key difference between the Infineon and Vishay substitutes?

A: IPD70P04P409ATMA2 provides electrical equivalence with identical current and RDS(on) ratings. SQD90P04-9M4L_GE3 offers higher current capacity (90A) and power dissipation (136W) but with increased gate charge (155nC), requiring verification of gate drive capability. Both maintain 40V rating and TO-252-3 package compatibility.

Q: Why is DMP4015SK3Q-13 not recommended as a primary substitute?

A: The DMP4015SK3Q-13 has insufficient current capacity (35A vs. 73A required) and lower power dissipation (3.5W vs. 75W). It also lacks AEC-Q101 automotive qualification and has a reduced operating temperature maximum (150°C vs. 175°C). Use only in applications with confirmed current requirements below 35A.

Q: Are all substitutes compatible with the same PCB footprint?

A: IPD70P04P409ATMA2 and DMP4015SK3Q-13 use identical TO-252-3 DPAK footprints. SQD90P04-9M4L_GE3 uses TO-252AA, which shares the same footprint dimensions and pin configuration, ensuring PCB compatibility across all three substitutes.

Q: What compliance certifications apply to all substitutes?

A: All three substitutes are RoHS3 compliant with MSL rating of 1 (Unlimited). IPD70P04P409ATMA2 and SQD90P04-9M4L_GE3 carry AEC-Q101 automotive qualification. DMP4015SK3Q-13 does not have AEC-Q101 certification. All share ECCN EAR99 and HTSUS 8541.29.0095 classifications.

Q: How does gate charge affect circuit performance in substitution?

A: Gate charge (Qg) determines switching speed and gate drive power requirements. IPD70P04P409ATMA1 and IPD70P04P409ATMA2 both specify 70nC @ 10V. SQD90P04-9M4L_GE3 requires 155nC @ 10V, necessitating verification that gate drive circuitry can supply sufficient current within required switching time windows. DMP4015SK3Q-13 requires only 47.5nC, reducing gate drive demands.

Q: Can SQD90P04-9M4L_GE3 be used in applications designed for 73A operation?

A: Yes, with design margin verification. The 90A rating provides 23% additional current capacity. However, the higher gate charge (155nC vs. 70nC) and increased input capacitance (6675pF vs. 4810pF) require confirmation that gate drive circuitry can accommodate these parameters without exceeding switching time or power dissipation limits.

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