FDI025N06 Equivalent & Substitute Parts

Part Overview

The FDI025N06 is an N-Channel MOSFET manufactured by onsemi, rated for 60V drain-to-source voltage with a continuous drain current of 265A at 25°C. This device is housed in a TO-262 (I2PAK) through-hole package and is part of the PowerTrench® series. The FDI025N06 is classified as obsolete, necessitating identification of equivalent substitute components for ongoing design requirements and production continuity.

Key Parameters

Parameter	Value	Unit
Drain to Source Voltage (Vdss)	60	V
Continuous Drain Current (Id) @ 25°C	265	A
Rds On (Max) @ 75A, 10V	2.5	mOhm
Gate Threshold Voltage (Vgs(th)) @ 250µA	4.5	V
Gate Charge (Qg) @ 10V	226	nC
Power Dissipation (Max)	395	W
Operating Temperature Range	-55 to 175	°C
Package Type	TO-262 (I2PAK)	Through Hole

Substitute Part Grouping Explanation

Substitution of the FDI025N06 is determined by strict equivalence across the following electrical and mechanical parameters:

Mandatory Matching Parameters:

Drain to Source Voltage (Vdss): 60V
Package Type: TO-262 (I2PAK) through-hole configuration
FET Type: N-Channel
Technology: MOSFET (Metal Oxide)
Gate Threshold Voltage (Vgs(th)): 4.5V @ 250µA
Maximum Gate Voltage (Vgs): ±20V
Operating Temperature Range: -55°C to 175°C

Allowable Variation Parameters: Substitute parts may differ in continuous drain current (Id), on-resistance (Rds On), gate charge (Qg), power dissipation, and input capacitance, provided the substitute meets or exceeds the electrical requirements of the application circuit.

The FDI030N06 qualifies as a substitute based on matching voltage ratings, package configuration, and thermal operating range. However, the FDI030N06 exhibits reduced continuous drain current (120A versus 265A) and lower power dissipation (231W versus 395W), making it suitable only for applications with lower current demands.

Parameter Comparison

Parameter	FDI025N06	FDI030N06	Unit
Drain to Source Voltage (Vdss)	60	60	V
Continuous Drain Current (Id) @ 25°C	265	120	A
Rds On (Max) @ 75A, 10V	2.5	3.2	mOhm
Gate Threshold Voltage (Vgs(th)) @ 250µA	4.5	4.5	V
Gate Charge (Qg) @ 10V	226	151	nC
Power Dissipation (Max)	395	231	W
Operating Temperature Range	-55 to 175	-55 to 175	°C
Input Capacitance (Ciss) @ 25V	14885	9815	pF
Package Type	TO-262 (I2PAK)	TO-262 (I2PAK)	Through Hole
FET Type	N-Channel	N-Channel	—
Technology	MOSFET (Metal Oxide)	MOSFET (Metal Oxide)	—
Maximum Gate Voltage (Vgs)	±20	±20	V

Engineering Selection Recommendations

FDI025N06 (Main Part): The FDI025N06 is classified as obsolete. While 917 pieces remain in stock, this part number is no longer in active production. Selection of this part is limited to existing inventory and should be considered only for legacy system maintenance or repair applications where exact part matching is required.

FDI030N06 (Substitute): The FDI030N06 holds Last Time Buy status and is ROHS3 compliant, indicating controlled availability with defined end-of-life parameters. This part is suitable as a substitute for applications where the continuous drain current requirement does not exceed 120A. The FDI030N06 maintains electrical compatibility across voltage ratings, threshold characteristics, and thermal operating range. Both parts carry REACH Unaffected status and EAR99 ECCN classification.

Selection between these parts depends on application current requirements. The FDI030N06 is appropriate for lower-current designs; applications requiring the full 265A continuous drain current capability of the FDI025N06 require alternative component sourcing beyond this substitute list.

Frequently Asked Questions (FAQ)

Q: Can the FDI030N06 directly replace the FDI025N06 in all applications?

A: No. The FDI030N06 has a maximum continuous drain current of 120A compared to the FDI025N06's 265A. Direct substitution is valid only for circuits designed to operate at or below 120A continuous drain current. Applications requiring higher current operation require alternative components.

Q: Are the package configurations identical between FDI025N06 and FDI030N06?

A: Yes. Both devices use the TO-262 (I2PAK) through-hole package with identical pin configuration and mechanical footprint. PCB layout and mounting hardware compatibility are maintained.

Q: What is the difference in on-resistance between these parts?

A: The FDI025N06 exhibits 2.5 mOhm maximum on-resistance at 75A and 10V gate voltage, while the FDI030N06 exhibits 3.2 mOhm under identical conditions. This 0.7 mOhm difference results in increased power dissipation in the FDI030N06 at equivalent current levels.

Q: Do both parts operate across the same temperature range?

A: Yes. Both the FDI025N06 and FDI030N06 operate from -55°C to 175°C junction temperature, ensuring thermal compatibility in equivalent applications.

Q: What is the significance of the FDI025N06 being classified as obsolete?

A: Obsolete status indicates the part is no longer manufactured. Existing inventory (917 pieces) represents the final available supply. New designs should not incorporate this part number. The FDI030N06, classified as Last Time Buy, provides a defined transition path with controlled availability until end-of-life.

Q: Are there compliance differences between FDI025N06 and FDI030N06?

A: The FDI030N06 is ROHS3 compliant with defined Moisture Sensitivity Level (Not Applicable), while the FDI025N06 carries MSL 1 (Unlimited). Both parts are REACH Unaffected and classified as EAR99. Compliance requirements for your application determine which part is acceptable.

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