FDMA910PZ Equivalent & Substitute Parts

Part Overview

The FDMA910PZ is a P-Channel MOSFET manufactured by onsemi, rated for 20V drain-to-source voltage with 9.4A continuous drain current at 25°C. This device is part of the PowerTrench® series and is housed in a 6-MicroFET (2x2) surface mount package. The part maintains Active product status with full RoHS3 compliance and unlimited moisture sensitivity level (MSL 1).

Substitute parts are necessary when the FDMA910PZ becomes unavailable, when alternative packaging formats are required for manufacturing compatibility, or when design specifications allow for equivalent electrical performance within defined parameter ranges.

Key Parameters

Parameter	Value	Unit
Drain-to-Source Voltage (Vdss)	20	V
Continuous Drain Current (Id) @ 25°C	9.4	A
On-Resistance (Rds On Max) @ Id, Vgs	20 mOhm @ 9.4A, 4.5V	mOhm
Gate Threshold Voltage (Vgs(th) Max) @ Id	1.5	V @ 250µA
Gate Charge (Qg Max) @ Vgs	29	nC @ 4.5V
Input Capacitance (Ciss Max) @ Vds	2805	pF @ 10V
Power Dissipation (Max)	2.4	W (Ta)
Operating Temperature Range	-55 to 150	°C (TJ)
Package Type	6-WDFN Exposed Pad	Surface Mount
FET Type	P-Channel	-
Technology	MOSFET (Metal Oxide)	-

Substitute Part Grouping Explanation

Substitution eligibility for the FDMA910PZ is determined by the following critical parameters:

Mandatory Matching Criteria:

FET Type: P-Channel
Technology: MOSFET (Metal Oxide)
Drain-to-Source Voltage (Vdss): 20V minimum
Operating Temperature Range: -55°C to 150°C (TJ)
RoHS3 Compliance: Required
Moisture Sensitivity Level: MSL 1 (Unlimited)

Performance Compatibility Criteria:

Continuous Drain Current (Id): Minimum 9.4A at 25°C
On-Resistance (Rds On): Maximum 20 mOhm at rated current and gate voltage
Gate Threshold Voltage (Vgs(th)): Maximum 1.5V at 250µA
Gate Charge (Qg): Maximum 29 nC at 4.5V
Input Capacitance (Ciss): Maximum 2805 pF at 10V
Power Dissipation: Minimum 2.4W at Ta

Package Compatibility:

Surface Mount technology required
6-pin configuration with exposed pad acceptable

The substitute parts listed below meet these criteria within the specified electrical and mechanical parameters.

Parameter Comparison

Parameter	FDMA910PZ	NTLUS3A18PZTAG	PMPB19XP,115	PMPB20XPE,115
Manufacturer	onsemi	onsemi	Nexperia USA Inc.	Nexperia USA Inc.
FET Type	P-Channel	P-Channel	P-Channel	P-Channel
Vdss (V)	20	20	20	20
Id @ 25°C (A)	9.4	5.1	7.2	7.2
Rds On Max @ Id, Vgs (mOhm)	20 @ 9.4A, 4.5V	18 @ 7A, 4.5V	22.5 @ 7.2A, 4.5V	23.5 @ 7.2A, 4.5V
Vgs(th) Max @ Id (V)	1.5 @ 250µA	1.0 @ 250µA	0.9 @ 250µA	0.9 @ 250µA
Qg Max @ Vgs (nC)	29 @ 4.5V	28 @ 4.5V	43.2 @ 4.5V	45 @ 4.5V
Ciss Max @ Vds (pF)	2805 @ 10V	2240 @ 15V	2890 @ 10V	2945 @ 10V
Power Dissipation Max (W)	2.4 (Ta)	0.7 (Ta)	1.7 (Ta), 12.5 (Tc)	1.7 (Ta), 12.5 (Tc)
Operating Temperature (°C)	-55 to 150	-55 to 150	-55 to 150	-55 to 150
Package	6-WDFN Exposed Pad	6-UDFN Exposed Pad	6-UDFN Exposed Pad	6-UDFN Exposed Pad
Product Status	Active	Obsolete	Active	Active
RoHS3 Compliance	Yes	Yes	Yes	Yes
MSL Rating	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)

Engineering Selection Recommendations

NTLUS3A18PZTAG (onsemi µCool™ Series)

This part shares the same manufacturer and voltage rating as the FDMA910PZ. However, the continuous drain current rating of 5.1A is significantly lower than the 9.4A requirement of the main part. The maximum power dissipation of 700mW is insufficient for applications requiring the full 2.4W capability of the FDMA910PZ. The NTLUS3A18PZTAG carries Obsolete product status, making it unsuitable for new designs or long-term supply assurance. This part is not recommended as a direct substitute.

PMPB19XP,115 (Nexperia USA Inc.)

This part is manufactured by Nexperia USA Inc. and maintains Active product status. The continuous drain current of 7.2A falls below the 9.4A specification of the FDMA910PZ. The on-resistance of 22.5 mOhm exceeds the 20 mOhm maximum of the main part. The gate charge of 43.2 nC is higher than the 29 nC specification. The power dissipation rating of 1.7W (Ta) is below the 2.4W requirement. Package compatibility exists through the 6-UDFN Exposed Pad configuration. This part is not recommended as a direct substitute due to insufficient current and power ratings.

PMPB20XPE,115 (Nexperia USA Inc.)

This part is manufactured by Nexperia USA Inc. and maintains Active product status with full RoHS3 compliance and MSL 1 rating. The continuous drain current of 7.2A is below the 9.4A specification. The on-resistance of 23.5 mOhm exceeds the 20 mOhm maximum. The gate charge of 45 nC is higher than the 29 nC specification. The power dissipation rating of 1.7W (Ta) is below the 2.4W requirement. The 6-UDFN Exposed Pad package provides mechanical compatibility. This part is not recommended as a direct substitute due to insufficient current and power ratings.

Summary

None of the listed substitute parts meet all electrical performance criteria of the FDMA910PZ. The NTLUS3A18PZTAG carries Obsolete status and is not suitable for new applications. The Nexperia parts (PMPB19XP,115 and PMPB20XPE,115) are Active and compliant but provide reduced current and power handling capabilities. Selection of any substitute requires design review to confirm that reduced current capacity (7.2A maximum versus 9.4A) and power dissipation (1.7W versus 2.4W) are acceptable for the intended application.

Frequently Asked Questions (FAQ)

Q: Can the NTLUS3A18PZTAG replace the FDMA910PZ in all applications?

A: No. The NTLUS3A18PZTAG has a maximum continuous drain current of 5.1A compared to the FDMA910PZ's 9.4A rating. Additionally, the NTLUS3A18PZTAG carries Obsolete product status, which disqualifies it from new designs and long-term supply commitments.

Q: What is the primary limitation of the Nexperia parts (PMPB19XP,115 and PMPB20XPE,115)?

A: Both Nexperia parts have a maximum continuous drain current of 7.2A, which is 2.2A below the FDMA910PZ specification of 9.4A. Additionally, their maximum power dissipation of 1.7W (Ta) is below the 2.4W requirement of the main part. These parts are suitable only for applications with reduced current demands.

Q: Are the package types compatible between the FDMA910PZ and the substitute parts?

A: The FDMA910PZ uses a 6-WDFN Exposed Pad package, while the substitute parts use a 6-UDFN Exposed Pad package. Both are 6-pin surface mount packages with exposed pads, but physical dimensions and PCB footprints may differ. PCB layout verification is required before substitution.

Q: Do all parts meet RoHS3 and MSL requirements?

A: Yes. The FDMA910PZ and all listed substitute parts are RoHS3 compliant with MSL 1 (Unlimited) moisture sensitivity level ratings.

Q: What is the significance of the gate charge (Qg) differences between parts?

A: Gate charge affects switching speed and driver circuit requirements. The FDMA910PZ has a maximum gate charge of 29 nC at 4.5V. The Nexperia parts have higher gate charges (43.2 nC and 45 nC), which may require different gate driver characteristics. The NTLUS3A18PZTAG has a comparable gate charge of 28 nC.

Q: Can I use a substitute part with lower current rating if my application only requires partial current?

A: Substitution with lower current-rated parts requires complete circuit analysis. The reduced current rating indicates lower power handling capability and may affect thermal performance, efficiency, and reliability margins. Design review and thermal simulation are necessary to confirm suitability.

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

A: Ta refers to power dissipation at ambient temperature, while Tc refers to power dissipation at case temperature. The Nexperia parts specify both ratings (1.7W Ta, 12.5W Tc), indicating higher power handling capability when case temperature is controlled. The FDMA910PZ and NTLUS3A18PZTAG specify only Ta ratings.

Q: Are there any compliance or certification differences between the parts?

A: All parts are RoHS3 compliant, REACH unaffected, and classified as EAR99 for export control purposes. No compliance differences exist among the listed parts.

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