Equivalent & Substitute Parts for AOSP66925

Part Overview

The AOSP66925 from Alpha & Omega Semiconductor Inc. is an N-Channel MOSFET designed for surface mount applications in an 8-SOIC package. This transistor features a 100 V drain-source voltage, 11A current rating at 25°C, and a maximum Rds On of 12.5 mOhm. It supports drive voltages of 4.5V and 10V, with key characteristics such as a gate charge of 33 nC and a 3.1W power dissipation limit. The product is active and compliant with RoHS3 and REACH. Finding alternative models is necessary for ensuring uninterrupted production, addressing supply fluctuations, or matching inventory and cost requirements.

Key Parameters

Parameter	Value
Drain to Source Voltage (Vdss)	100 V
Current - Continuous Drain (Id) @ 25°C	11A (Ta)
Rds On (Max) @ Id, Vgs	12.5mOhm @ 11A, 10V
Drive Voltage (Max Rds On, Min Rds On)	4.5V, 10V
Gate Charge (Qg) (Max) @ Vgs	33 nC @ 10 V
Vgs(th) (Max) @ Id	2.6V @ 250µA
Vgs (Max)	±20V
Input Capacitance (Ciss) (Max) @ Vds	1590 pF @ 50 V
Power Dissipation (Max)	3.1W (Ta)
Operating Temperature	-55°C ~ 150°C (TJ)
Mounting Type	Surface Mount
Supplier Device Package	8-SOIC
RoHS Status	ROHS3 Compliant
REACH Status	REACH Unaffected

Substitute Part Grouping Explanation

The substitute relationship between AOSP66925 and AOSP66920 is strictly determined by critical electrical and mechanical parameters. These parameters include drain to source voltage (Vdss), continuous drain current (Id), Rds On, drive voltage, gate charge, Vgs(th), maximum Vgs, input capacitance, power dissipation, operating temperature, mounting type, device package, and environmental compliance. Only products matching these key specifications are considered functional substitutes within the Transistors, FETs, MOSFETs category.

Key parameters for substitution:

Drain to Source Voltage (Vdss)
Current - Continuous Drain (Id)
Rds On (Max) @ Id, Vgs
Drive Voltage (Max Rds On, Min Rds On)
Gate Charge (Qg)
Vgs(th) (Max)
Vgs (Max)
Input Capacitance (Ciss)
Power Dissipation (Max)
Operating Temperature
Mounting Type
Device Package
RoHS and REACH status

Parameter Comparison

Parameter	AOSP66925	AOSP66920
Manufacturer	Alpha & Omega Semiconductor Inc.	Alpha & Omega Semiconductor Inc.
Category	Transistors, FETs, MOSFETs	Transistors, FETs, MOSFETs
Drain to Source Voltage (Vdss)	100 V	100 V
Current - Continuous Drain (Id) @ 25°C	11A (Ta)	13.5A (Ta)
Rds On (Max) @ Id, Vgs	12.5mOhm @ 11A, 10V	8.5mOhm @ 13.5A, 10V
Drive Voltage (Max Rds On, Min Rds On)	4.5V, 10V	4.5V, 10V
Gate Charge (Qg) (Max) @ Vgs	33 nC @ 10 V	50 nC @ 10 V
Vgs(th) (Max) @ Id	2.6V @ 250µA	2.5V @ 250µA
Vgs (Max)	±20V	±20V
Input Capacitance (Ciss) (Max) @ Vds	1590 pF @ 50 V	2500 pF @ 50 V
Power Dissipation (Max)	3.1W (Ta)	3.1W (Ta)
Operating Temperature	-55°C ~ 150°C (TJ)	-55°C ~ 150°C (TJ)
Mounting Type	Surface Mount	Surface Mount
Supplier Device Package	8-SOIC	8-SOIC
RoHS Status	ROHS3 Compliant	ROHS3 Compliant
REACH Status	REACH Unaffected	REACH Unaffected

Engineering Selection Recommendations

Selection of substitute components is dependent on product status and compliance. Both AOSP66925 and AOSP66920 are active products, with ROHS3 compliance and REACH unaffected status. These attributes meet regulatory and supply chain requirements for many applications needing surface mount N-Channel 100 V MOSFETs in an 8-SOIC package.

Frequently Asked Questions (FAQ)

Q1: What determines if AOSP66920 can substitute AOSP66925?
A1: Substitution is determined by matching drain-source voltage, continuous drain current, Rds On, drive voltage, gate charge, Vgs(th), Vgs(max), input capacitance, power dissipation, operating temperature, mounting type, device package, and compliance certifications.

Q2: Are there differences in electrical ratings between the two MOSFETs?
A2: Yes, AOSP66920 offers higher continuous drain current (13.5A vs 11A) and lower Rds On (8.5mOhm vs 12.5mOhm), with a higher gate charge and input capacitance values.

Q3: Is package compatibility maintained?
A3: Both parts use the same 8-SOIC surface mount package, ensuring mechanical and footprint compatibility.

Q4: Do both models share the same environmental and product status certifications?
A4: Both are ROHS3 compliant, REACH unaffected, and listed as active products.

Q5: Can both parts operate within the same temperature range?
A5: Both support an operating junction temperature range of -55°C to +150°C.

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