FCA20N60FS Equivalent & Substitute Parts

Part Overview

The FCA20N60FS is an N-Channel 600V 20A MOSFET manufactured by onsemi in the SuperFET™ series, housed in a TO-3PN package for through-hole mounting applications. This device is classified as Obsolete, indicating it has reached end-of-life status and is no longer recommended for new designs. The identification of equivalent and substitute parts is necessary to support existing applications, facilitate design transitions, and ensure continued availability of functionally compatible alternatives from current product lines.

Key Parameters

Parameter	Value	Unit
Drain to Source Voltage (Vdss)	600	V
Continuous Drain Current (Id) @ 25°C	20	A (Tc)
On-State Resistance (Rds On) @ 10A, 10V	190	mOhm
Gate Threshold Voltage (Vgs(th)) @ 250µA	5	V
Gate Charge (Qg) @ 10V	98	nC
Input Capacitance (Ciss) @ 25V	3080	pF
Power Dissipation (Max)	208	W (Tc)
Operating Temperature Range	-55 to 150	°C (TJ)
Package Type	TO-3PN	Through Hole
Gate Voltage (Max)	±30	V

Substitute Part Grouping Explanation

Substitution of the FCA20N60FS is determined by strict equivalence across the following critical electrical and mechanical parameters:

Primary Equivalence Criteria:

Drain to Source Voltage (Vdss): 600V
Continuous Drain Current (Id): 20A
On-State Resistance (Rds On): 190mOhm @ 10A, 10V
Gate Threshold Voltage (Vgs(th)): 5V @ 250µA
Gate Charge (Qg): 98nC @ 10V
Input Capacitance (Ciss): 3080pF @ 25V
Power Dissipation: 208W (Tc)
Operating Temperature: -55°C to 150°C
Package: TO-3PN (TO-3P-3, SC-65-3)
Mounting Type: Through Hole

Parametric Equivalent Parts (onsemi SuperFET™ series) maintain identical electrical specifications and package compatibility:

FCA20N60
FCA20N60-F109
FCA20N60F

Similar Parts (alternative manufacturers) share the same voltage and package class but differ in current rating, on-state resistance, or other secondary parameters:

RJK6020DPK-00#T0 (Renesas Electronics Corporation)

Parameter Comparison

Parameter	FCA20N60FS	FCA20N60	FCA20N60-F109	FCA20N60F	RJK6020DPK-00#T0
Manufacturer	onsemi	onsemi	onsemi	onsemi	Renesas Electronics
Vdss (V)	600	600	600	600	600
Id @ 25°C (A)	20	20	20	20	32
Rds On @ 10A, 10V (mOhm)	190	190	190	190	175
Vgs(th) @ 250µA (V)	5	5	5	5	Not Specified
Qg @ 10V (nC)	98	98	98	98	121
Ciss @ 25V (pF)	3080	3080	3080	3080	5150
Power Dissipation (W)	208	208	208	208	200
Operating Temperature (°C)	-55 to 150	-55 to 150	-55 to 150	-55 to 150	to 150
Package	TO-3PN	TO-3PN	TO-3PN	TO-3PN	TO-3P
Product Status	Obsolete	Not For New Designs	Not For New Designs	Not For New Designs	Active
RoHS Status	Not Specified	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant

Engineering Selection Recommendations

For Direct Replacement (Parametric Equivalents):

The parts FCA20N60, FCA20N60-F109, and FCA20N60F are parametric equivalents of the FCA20N60FS. All three maintain identical electrical specifications and TO-3PN package compatibility. Selection among these three should be based on:

Availability: FCA20N60F has the highest inventory (6836 pcs), followed by FCA20N60 (4177 pcs) and FCA20N60-F109 (739 pcs).
Compliance Status: All three are ROHS3 Compliant, whereas the original FCA20N60FS compliance status is not specified.
Product Status: All three are classified as "Not For New Designs," indicating they are in mature or declining production phases.

For New Design Transitions:

The RJK6020DPK-00#T0 (Renesas Electronics Corporation) is an alternative from an active product line. This device differs in the following parameters:

Higher continuous drain current (32A vs. 20A)
Lower on-state resistance (175mOhm vs. 190mOhm)
Higher gate charge (121nC vs. 98nC)
Higher input capacitance (5150pF vs. 3080pF)
Slightly lower power dissipation (200W vs. 208W)
TO-3P package (compatible with TO-3PN footprint)
Active product status with ROHS3 compliance

The RJK6020DPK-00#T0 is suitable for applications where higher current capability and lower on-state resistance provide performance benefits, provided circuit design accommodates the increased gate charge and input capacitance.

Frequently Asked Questions (FAQ)

Q: Can FCA20N60, FCA20N60-F109, and FCA20N60F be used interchangeably with FCA20N60FS?

A: Yes. These three parts are parametric equivalents with identical electrical specifications (Vdss, Id, Rds On, Vgs(th), Qg, Ciss, power dissipation, and operating temperature) and the same TO-3PN package. They are direct functional replacements.

Q: What is the difference between FCA20N60FS and FCA20N60?

A: The primary difference is packaging specification. FCA20N60FS does not specify packaging detail, while FCA20N60 is supplied in Tube packaging. Electrically and functionally, they are identical. FCA20N60 also carries ROHS3 compliance certification.

Q: Is the RJK6020DPK-00#T0 a direct replacement for FCA20N60FS?

A: No. While the RJK6020DPK-00#T0 shares the same 600V voltage rating and TO-3P package family, it is a similar but not equivalent part. It has higher current capability (32A vs. 20A), lower on-state resistance (175mOhm vs. 190mOhm), and higher gate charge (121nC vs. 98nC). Use this part only if your circuit design accommodates these parameter differences.

Q: Why is FCA20N60FS marked as Obsolete?

A: The FCA20N60FS has reached end-of-life status and is no longer in active production. The parametric equivalent parts (FCA20N60, FCA20N60-F109, FCA20N60F) are also classified as "Not For New Designs," indicating the entire product family is in mature phase. For new designs, consider the RJK6020DPK-00#T0 or other active-status alternatives.

Q: Are all substitute parts ROHS3 compliant?

A: The three parametric equivalents (FCA20N60, FCA20N60-F109, FCA20N60F) are all ROHS3 Compliant. The RJK6020DPK-00#T0 is also ROHS3 Compliant. The original FCA20N60FS does not specify RoHS status in available documentation.

Q: What is the difference between TO-3PN and TO-3P packages?

A: Both are through-hole packages in the TO-3 family with identical pin configurations and footprints. TO-3PN is a variant designation used by onsemi. The RJK6020DPK-00#T0 uses the standard TO-3P designation. They are mechanically and electrically compatible for PCB mounting.

Q: Can I use FCA20N60F in a high-frequency switching application?

A: FCA20N60F has identical gate charge (98nC) and input capacitance (3080pF) to the FCA20N60FS, making it suitable for the same frequency range. However, verify that your gate driver circuit can supply the required gate current for your specific switching frequency.

Q: Which substitute part should I choose for maximum inventory availability?

A: FCA20N60F has the highest inventory level at 6836 pcs. If this part is not suitable for other reasons, FCA20N60 is the second choice with 4177 pcs available.

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