FDP65N06 N-Channel MOSFET 60V 65A Equivalent & Substitute Parts

Part Overview

The FDP65N06 is an N-Channel MOSFET manufactured by onsemi, rated for 60V drain-to-source voltage and 65A continuous drain current in a TO-220-3 through-hole package. This device is part of the UniFET™ series and is classified as obsolete. Due to its obsolete status, equivalent and substitute parts from active product lines are necessary for new designs and ongoing production requirements. Substitute parts maintain the same voltage rating and package type while offering comparable or enhanced electrical characteristics.

Key Parameters

Parameter	FDP65N06	Unit
Drain-to-Source Voltage (Vdss)	60	V
Continuous Drain Current (Id) @ 25°C	65	A
On-State Resistance (Rds On) @ 32.5A, 10V	16	mOhm
Gate Threshold Voltage (Vgs(th)) @ 250µA	4	V
Gate Charge (Qg) @ 10V	43	nC
Input Capacitance (Ciss) @ 25V	2170	pF
Power Dissipation (Max)	135	W
Operating Temperature Range	-55 to 150	°C
Package Type	TO-220-3	—
Mounting Type	Through Hole	—
Product Status	Obsolete	—

Substitute Part Grouping Explanation

Substitution of the FDP65N06 is determined by the following critical parameters:

Mandatory Matching Criteria:

Drain-to-Source Voltage (Vdss): 60V
Package Type: TO-220-3 through-hole configuration
FET Type: N-Channel MOSFET
Technology: Metal Oxide Semiconductor

Performance Compatibility Criteria:

Continuous Drain Current (Id): Equal to or greater than 65A
On-State Resistance (Rds On): Lower or comparable values ensure equivalent or improved performance
Gate Threshold Voltage (Vgs(th)): Within compatible range for gate drive circuits
Operating Temperature Range: Minimum -55°C to 150°C overlap required

Substitute parts are grouped into two categories:

Category 1 – Direct Functional Replacement (Active Status): Parts with 60V Vdss rating, TO-220-3 package, and drain current ratings at or above 65A from active product lines. These parts are suitable for direct substitution in new designs.

Category 2 – Performance-Enhanced Alternatives (Obsolete Status): Parts with superior electrical characteristics (higher current ratings, lower Rds On, higher power dissipation) that provide enhanced performance margins. These are suitable for applications requiring higher reliability or thermal headroom.

Parameter Comparison

Parameter	FDP65N06	FQP50N06L-EPKE0003	PSMN3R0-60PS,127	PSMN4R6-60PS,127	STP55NF06	STP55NF06L	STP60NF06	STP60NF06L	Unit
Vdss	60	60	60	60	60	60	60	60	V
Id @ 25°C	65	52.4	100	100	50	55	60	60	A
Rds On (Max) @ 10V	16	21	3	4.6	18	18	16	14	mOhm
Vgs(th) @ 250µA or 1mA	4	2.5	4	4	4	1.7	4	1	V
Qg @ 10V or 5V	43	32	130	70.8	60	37	73	66	nC
Ciss @ 25V or 30V	2170	1630	8079	4426	1300	1700	1660	2000	pF
Power Dissipation (Max)	135	121	306	211	110	95	110	110	W
Operating Temperature	-55 to 150	-55 to 175	-55 to 175	-55 to 175	-55 to 175	-55 to 175	-55 to 175	-65 to 175	°C
Package	TO-220-3	TO-220-3	TO-220AB	TO-220AB	TO-220	TO-220	TO-220	TO-220	—
Product Status	Obsolete	Active	Obsolete	Obsolete	Active	Active	Active	Active	—
RoHS Compliance	ROHS3	—	ROHS3	ROHS3	ROHS3	ROHS3	ROHS3	ROHS3	—

Engineering Selection Recommendations

For New Designs – Active Product Line:

The FQP50N06L-EPKE0003 (onsemi QFET® series) is the manufacturer-recommended replacement. This part maintains 60V Vdss rating and TO-220-3 package compatibility with active product status. While the continuous drain current is rated at 52.4A compared to the original 65A, the lower Rds On (21 mOhm vs. 16 mOhm) and extended operating temperature range (-55°C to 175°C) provide improved thermal performance. This part is ROHS3 compliant and REACH unaffected.

For Performance-Critical Applications:

The STP60NF06L (STMicroelectronics STripFET™ II series) offers equivalent 60A continuous drain current with superior on-state resistance (14 mOhm at 30A, 10V) and extended lower temperature limit (-65°C). This part is active, ROHS3 compliant, and provides the lowest Rds On among active alternatives. Operating temperature range extends to 175°C.

For High-Current Applications:

The PSMN3R0-60PS,127 and PSMN4R6-60PS,127 (Nexperia) provide 100A continuous drain current with significantly lower Rds On values (3 mOhm and 4.6 mOhm respectively), enabling higher power dissipation capability (306W and 211W). These parts are obsolete but available in inventory. Package designation is TO-220AB, which is mechanically compatible with TO-220-3 footprints.

For Standard Replacement:

The STP55NF06 and STP60NF06 (STMicroelectronics STripFET™ II series) provide active product status with 50A and 60A continuous drain current respectively. Both maintain 60V Vdss, TO-220 package compatibility, and ROHS3 compliance. These parts are widely available with high inventory levels.

Frequently Asked Questions (FAQ)

Q: Can the FQP50N06L-EPKE0003 replace the FDP65N06 directly?

A: The FQP50N06L-EPKE0003 is the manufacturer-recommended replacement. It maintains the same 60V Vdss rating and TO-220-3 package. The continuous drain current is 52.4A versus the original 65A. For applications operating below 52.4A, direct substitution is valid. For applications requiring the full 65A rating, thermal analysis and current distribution verification are necessary.

Q: What is the difference between TO-220-3 and TO-220AB packages?

A: Both are through-hole packages with three leads. TO-220-3 and TO-220AB are mechanically compatible and use the same PCB footprint. The designations reflect different manufacturer naming conventions. All substitute parts listed use compatible through-hole configurations.

Q: Why is the FDP65N06 obsolete?

A: The FDP65N06 is classified as obsolete by onsemi. Active alternatives from the same manufacturer (FQP50N06L-EPKE0003) and other manufacturers (STMicroelectronics, Nexperia) provide equivalent or superior performance with ongoing production support.

Q: Which substitute part has the lowest on-state resistance?

A: The PSMN3R0-60PS,127 has the lowest Rds On at 3 mOhm (@ 25A, 10V), followed by PSMN4R6-60PS,127 at 4.6 mOhm. Both are rated for 100A continuous drain current. The STP60NF06L offers the lowest Rds On among active parts at 14 mOhm (@ 30A, 10V) with 60A continuous drain current.

Q: Are all substitute parts ROHS3 compliant?

A: All substitute parts listed are ROHS3 compliant. The FDP65N06 is also ROHS3 compliant. All parts are REACH unaffected.

Q: What is the maximum operating temperature for each substitute?

A: FQP50N06L-EPKE0003, PSMN3R0-60PS,127, PSMN4R6-60PS,127, STP55NF06, STP55NF06L, and STP60NF06 operate to 175°C. The STP60NF06L extends to 175°C with a lower minimum of -65°C. The original FDP65N06 operates to 150°C maximum.

Q: Can I use a higher-current-rated part as a substitute?

A: Yes. Parts rated for higher continuous drain current (such as the 100A-rated PSMN series) can be used in applications designed for the 65A FDP65N06. The higher current rating provides additional design margin. Verify that the package footprint and pin configuration match your PCB layout.

Q: Which substitute offers the best inventory availability?

A: The STP55NF06 has the highest inventory level at 155,400 pieces. The STP60NF06 has 35,300 pieces available. The FQP50N06L-EPKE0003 has 849 pieces in stock.

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