FCD5N60TM N-Channel 600V 4.6A MOSFET Equivalent & Substitute Parts

Part Overview

The FCD5N60TM is an N-Channel 600V 4.6A MOSFET manufactured by onsemi in the SuperFET™ series, housed in a TO-252AA (DPAK) surface mount package. This device is rated for 54W maximum power dissipation and operates across a temperature range of -55°C to 150°C. The FCD5N60TM is classified as "Not For New Designs," indicating that while the part remains available in inventory, onsemi has discontinued its recommendation for new circuit development. Identifying equivalent and substitute parts is necessary for design continuity, inventory management, and long-term product support when the primary part reaches end-of-life status or becomes unavailable.

Key Parameters

Parameter	Value	Unit
Drain to Source Voltage (Vdss)	600	V
Continuous Drain Current (Id) @ 25°C	4.6	A
On-State Resistance (Rds On) @ 2.3A, 10V	950	mOhm
Gate Threshold Voltage (Vgs(th)) @ 250µA	5	V
Gate Charge (Qg) @ 10V	16	nC
Input Capacitance (Ciss) @ 25V	600	pF
Maximum Gate Voltage (Vgs)	±30	V
Power Dissipation (Max)	54	W
Operating Temperature Range	-55 to 150	°C
Package Type	TO-252-3 (DPAK)	—
Mounting Type	Surface Mount	—

Substitute Part Grouping Explanation

Substitution of the FCD5N60TM is determined by electrical and mechanical compatibility across the following critical parameters:

Voltage Rating (Vdss): All substitute parts must maintain a minimum drain-to-source voltage rating of 600V to ensure safe operation in the same circuit topology. Parts with higher voltage ratings (620V) are acceptable as they provide additional margin.

Continuous Drain Current (Id): Substitute parts must support a minimum continuous drain current of 4.6A at 25°C. Parts with equal or higher current ratings (4.5A to 5.5A) are functionally compatible.

On-State Resistance (Rds On): The on-state resistance directly affects power dissipation and thermal performance. Substitute parts with Rds On values between 900mOhm and 1.28Ohm at comparable gate drive voltages (10V) maintain similar switching and conduction losses.

Gate Threshold Voltage (Vgs(th)): Threshold voltages between 4V and 5V ensure compatible gate drive requirements and switching behavior across the substitute parts.

Package and Mounting: All substitute parts use TO-252-3 (DPAK) surface mount packaging, ensuring mechanical and thermal interface compatibility with the original design.

Temperature Range: Operating temperature ranges of -55°C to 150°C or higher ensure thermal compatibility across all substitute parts.

Compliance and Status: All substitute parts maintain RoHS3 compliance, MSL Level 1 (Unlimited), and REACH Unaffected status, matching the regulatory profile of the FCD5N60TM.

Parameter Comparison

Part Number	Manufacturer	Vdss (V)	Id @ 25°C (A)	Rds On (mOhm)	Vgs(th) (V)	Qg (nC)	Ciss (pF)	Pd Max (W)	Temp Range (°C)	Package	Status
FCD5N60TM	onsemi	600	4.6	950	5	16	600	54	-55 to 150	TO-252AA	Not For New Designs
FCD5N60TM-WS	onsemi	600	4.6	950	5	16	600	54	-55 to 150	TO-252AA	Not For New Designs
STD7N60M2	STMicroelectronics	600	5	950	4	8.8	271	60	-55 to 150	TO-252-3	Active
STD6N60M2	STMicroelectronics	600	4.5	1200	4	8	232	60	-55 to 150	TO-252-3	Active
STD6N62K3	STMicroelectronics	620	5.5	1280	4.5	25.7	706	90	-55 to 150	TO-252-3	Active
STD7NM60N	STMicroelectronics	600	5	900	4	14	363	45	-55 to 150	TO-252-3	Active
AOD4S60	Alpha & Omega Semiconductor Inc.	600	4	900	4.1	6	263	56.8	-55 to 150	TO-252	Not For New Designs
R6004ENDTL	Rohm Semiconductor	600	4	980	4	15	250	20	-55 to 150	TO-252-3	Active

Engineering Selection Recommendations

Direct Equivalent (Packaging Variant): The FCD5N60TM-WS is a direct electrical and mechanical equivalent of the FCD5N60TM, differing only in packaging format (Tape & Reel versus Cut Tape). Both parts share identical electrical specifications and are manufactured by onsemi. Selection between these two variants depends on procurement and assembly requirements. Both parts carry "Not For New Designs" status.

Active Alternatives with Enhanced Performance: STMicroelectronics parts (STD7N60M2, STD6N60M2, STD6N62K3, STD7NM60N) are classified as Active products and represent current-generation alternatives. These parts maintain voltage and current compatibility while offering improved gate charge characteristics and thermal performance. STD7N60M2 and STD7NM60N provide the closest electrical match to the FCD5N60TM with 5A continuous drain current and 600V voltage rating. STD6N62K3 offers higher current capacity (5.5A) and voltage margin (620V) for applications requiring additional headroom.

Cross-Manufacturer Alternatives: AOD4S60 (Alpha & Omega Semiconductor Inc.) and R6004ENDTL (Rohm Semiconductor) provide functional substitution with 600V voltage rating and 4A continuous drain current. R6004ENDTL is classified as Active and offers the lowest power dissipation (20W), making it suitable for thermally constrained applications. AOD4S60 carries "Not For New Designs" status, similar to the FCD5N60TM.

Compliance and Regulatory Alignment: All substitute parts maintain RoHS3 compliance, MSL Level 1 (Unlimited), and REACH Unaffected status, ensuring regulatory compatibility with the original FCD5N60TM. Selection of Active-status parts (STMicroelectronics and R6004ENDTL) is recommended for new designs requiring long-term supply assurance and manufacturer support.

Frequently Asked Questions (FAQ)

Q: Can FCD5N60TM-WS be used as a direct replacement for FCD5N60TM?

A: Yes. FCD5N60TM-WS is electrically and mechanically identical to FCD5N60TM. The difference is packaging format: FCD5N60TM is supplied in Cut Tape (CT) & Digi-Reel®, while FCD5N60TM-WS is supplied in Tape & Reel (TR). Both parts have identical electrical specifications and thermal characteristics. Selection depends on assembly line requirements and inventory management practices.

Q: What is the minimum drain current rating required for a substitute part?

A: The substitute part must support a minimum continuous drain current of 4.6A at 25°C. Parts rated for 4.5A or higher (such as STD6N60M2 at 4.5A, STD7N60M2 at 5A, or STD6N62K3 at 5.5A) are acceptable. Parts with lower current ratings do not provide adequate current capacity for the original application.

Q: Are there differences in on-state resistance between substitute parts?

A: Yes. On-state resistance (Rds On) varies across substitute parts. The FCD5N60TM has 950mOhm at 2.3A and 10V. Substitute parts range from 900mOhm (STD7NM60N) to 1280mOhm (STD6N62K3). Lower Rds On values reduce conduction losses and heat generation. Selection should consider thermal budget and efficiency requirements of the application.

Q: Can I use STD6N62K3 (620V) instead of FCD5N60TM (600V)?

A: Yes. STD6N62K3 has a higher voltage rating (620V) than the FCD5N60TM (600V), providing additional voltage margin. This part is electrically compatible and can be used in applications designed for 600V operation. The higher voltage rating does not create compatibility issues; it provides additional safety margin.

Q: What is the difference between Active and "Not For New Designs" status?

A: "Not For New Designs" status indicates that the manufacturer has discontinued the part for new circuit development but maintains existing inventory and support. Active status indicates the manufacturer continues to produce and support the part for new designs. For long-term product development and supply chain stability, Active-status parts (STMicroelectronics and R6004ENDTL) are recommended.

Q: Are all substitute parts available in the same TO-252 package?

A: Yes. All substitute parts use TO-252-3 (DPAK) surface mount packaging with 2 leads plus tab. This ensures mechanical and thermal interface compatibility with the original FCD5N60TM design. No PCB layout modifications are required for package substitution.

Q: Which substitute part has the lowest power dissipation?

A: R6004ENDTL (Rohm Semiconductor) has the lowest maximum power dissipation at 20W, compared to 54W for the FCD5N60TM. This part is suitable for applications with strict thermal constraints. However, R6004ENDTL has a lower maximum power dissipation rating, which may indicate different thermal design assumptions. Verify that the lower power rating is compatible with your application's thermal requirements.

Q: Do all substitute parts have the same operating temperature range?

A: Most substitute parts operate from -55°C to 150°C, matching the FCD5N60TM. However, STD6N62K3 and STD7NM60N specify a maximum operating temperature of 150°C without a lower limit explicitly stated as -55°C in the provided data. Verify the complete temperature range specification for your specific application requirements.

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

A: Gate charge affects switching speed and gate drive power requirements. The FCD5N60TM has 16nC gate charge at 10V. Substitute parts range from 6nC (AOD4S60) to 25.7nC (STD6N62K3). Lower gate charge enables faster switching and reduces gate drive losses. Higher gate charge may require stronger gate drive circuits but does not prevent substitution if the gate driver can supply the required charge.

Q: Can I substitute a part with lower continuous drain current rating?

A: No. The substitute part must support at least 4.6A continuous drain current at 25°C. Parts with lower current ratings (such as AOD4S60 and R6004ENDTL at 4A) do not meet the minimum current requirement and cannot be used as direct substitutes. These parts may be suitable only if the application circuit is redesigned to operate at lower current levels.

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