SPW47N60CFDFKSA1 Equivalent & Substitute Parts

Part Overview

The SPW47N60CFDFKSA1 is an N-Channel 600V 46A MOSFET manufactured by Infineon Technologies in the CoolMOS™ series. This device is packaged in TO-247-3 through-hole configuration with a maximum power dissipation of 417W at case temperature. The part is marked as "Not For New Designs," indicating it has been superseded in Infineon's product portfolio. Finding equivalent and substitute parts is necessary for ongoing maintenance, repair, and legacy system support where this component remains in active use.

Key Parameters

Parameter	Value	Unit
Drain to Source Voltage (Vdss)	600	V
Continuous Drain Current (Id) @ 25°C	46	A
On-State Resistance (Rds On) @ 29A, 10V	83	mOhm
Gate Threshold Voltage (Vgs(th)) @ 2.9mA	5	V
Gate Charge (Qg) @ 10V	322	nC
Maximum Gate Voltage (Vgs)	±20	V
Input Capacitance (Ciss) @ 25V	7700	pF
Power Dissipation (Max)	417	W
Operating Temperature Range	-55 to 150	°C
Package Type	TO-247-3	-
Mounting Type	Through Hole	-

Substitute Part Grouping Explanation

Substitution of the SPW47N60CFDFKSA1 is determined by the following critical parameters:

Primary Substitution Criteria:

Drain to Source Voltage (Vdss): Must equal 600V
Package Type: Must be TO-247-3 or compatible through-hole package
Continuous Drain Current (Id): Must be equal to or greater than 46A
Operating Temperature Range: Must support -55°C to 150°C minimum
On-State Resistance (Rds On): Lower or equivalent values ensure thermal performance compatibility

Secondary Compatibility Factors:

Gate Threshold Voltage (Vgs(th)): Acceptable range 3.5V to 5V for standard gate drive circuits
Maximum Gate Voltage (Vgs): ±20V minimum required; ±30V acceptable
RoHS3 Compliance: Required for environmental and regulatory compatibility
Mounting configuration: Through-hole TO-247-3 or TO-247 variants

Substitute parts are grouped into three categories based on current rating and thermal characteristics: lower-current alternatives (37A), equivalent-current alternatives (46-47A), and higher-current alternatives (48A and above).

Parameter Comparison

Parameter	SPW47N60CFDFKSA1	FCH104N60	FCH47N60-F085	IXFR80N60P3	IXFX80N60P3	R6046FNZ1C9	STW43N60DM2
Manufacturer	Infineon	onsemi	onsemi	IXYS	IXYS	Rohm	STMicroelectronics
Vdss (V)	600	600	600	600	600	600	600
Id @ 25°C (A)	46	37	47	48	80	46	34
Rds On (mOhm)	83 @ 29A	104 @ 18.5A	79 @ 47A	76 @ 40A	70 @ 0.5A	98 @ 23A	93 @ 17A
Vgs(th) (V)	5 @ 2.9mA	3.5 @ 250µA	5 @ 250µA	5 @ 8mA	5 @ 8mA	5 @ 1mA	5 @ 250µA
Qg @ 10V (nC)	322	82	250	190	190	150	56
Vgs Max (V)	±20	±20	±30	±30	±30	±30	±25
Ciss @ 25V (pF)	7700	4165	8000	13100	13100	6230	2500
Power Dissipation (W)	417	357	417	540	1300	120	250
Package	TO-247-3	TO-247-3	TO-247-3	ISOPLUS247™	PLUS247™-3	TO-247	TO-247-3
Product Status	Not For New Designs	Obsolete	Not For New Designs	Active	Active	Obsolete	Active
Operating Temp (°C)	-55 to 150	-55 to 150	-55 to 150	-55 to 150	-55 to 150	-55 to 150	-55 to 150
RoHS3 Compliant	Yes	Yes	Yes	Yes	Yes	Yes	Yes

Engineering Selection Recommendations

Tier 1: Direct Equivalents (Recommended for Direct Replacement)

FCH47N60-F085 (onsemi SuperFET™): This part provides the closest electrical match with 47A continuous drain current and 79mOhm on-state resistance. It maintains the same 600V rating, TO-247-3 package, and -55°C to 150°C operating range. The part carries AEC-Q101 automotive qualification and is actively supported. Gate charge of 250nC is lower than the original, improving switching efficiency. Maximum gate voltage extends to ±30V, providing greater gate drive flexibility. Status: Not For New Designs, but actively manufactured with 750 pieces in stock.

IXFR80N60P3 (IXYS HiPerFET™ Polar3™): This part delivers 48A continuous current with superior 76mOhm on-state resistance in ISOPLUS247™ package. The ISOPLUS247™ package is mechanically and electrically compatible with TO-247-3 applications. Gate charge of 190nC provides improved switching performance. Product status is Active with 992 pieces in stock, ensuring long-term availability.

Tier 2: Acceptable Alternatives (Current-Reduced Substitutes)

STW43N60DM2 (STMicroelectronics MDmesh™ DM2): Provides 34A continuous current with 93mOhm on-state resistance. This part is suitable for applications where the full 46A rating is not required. Product status is Active with 2435 pieces in stock. Gate charge of only 56nC offers significant switching speed advantage. Input capacitance of 2500pF is the lowest among all substitutes, reducing gate drive requirements.

FCH104N60-F085 (onsemi SuperFET® II): Delivers 37A continuous current with 104mOhm on-state resistance. Suitable for reduced-current applications. Carries AEC-Q101 automotive qualification. Product status is Not For New Designs with 791 pieces in stock.

Tier 3: Higher-Performance Alternatives (Current-Enhanced Substitutes)

IXFX80N60P3 (IXYS HiPerFET™ Polar3™): Provides 80A continuous current with 70mOhm on-state resistance and 1300W power dissipation. This part is suitable for applications requiring higher current capacity or improved thermal performance. Product status is Active with 1094 pieces in stock. Package is PLUS247™-3, a TO-247-3 variant.

Selection Basis:

All recommended substitutes maintain 600V Vdss rating
All support -55°C to 150°C operating temperature range
All are RoHS3 compliant
Package compatibility verified for TO-247-3 and compatible variants
Product status prioritizes Active parts for new applications; Not For New Designs parts acceptable for legacy support
Automotive-qualified parts (AEC-Q101) available for applications requiring this certification

Frequently Asked Questions (FAQ)

Q1: Can I use FCH47N60-F085 as a direct replacement for SPW47N60CFDFKSA1?

A: Yes. Both parts share identical 600V Vdss rating, 47A continuous drain current, 417W power dissipation, and TO-247-3 package. The FCH47N60-F085 features lower gate charge (250nC vs. 322nC) and lower on-state resistance (79mOhm vs. 83mOhm), providing improved performance. Gate voltage rating extends to ±30V compared to ±20V on the original. Both parts support -55°C to 150°C operating range.

Q2: What is the difference between IXFR80N60P3 and IXFX80N60P3?

A: IXFR80N60P3 uses ISOPLUS247™ package while IXFX80N60P3 uses PLUS247™-3 package. Both are mechanically and electrically compatible with TO-247-3 applications. IXFR80N60P3 delivers 48A at 76mOhm, while IXFX80N60P3 delivers 80A at 70mOhm. IXFX80N60P3 provides higher current capacity and lower on-state resistance, suitable for higher-power applications.

Q3: Why is STW43N60DM2 rated at only 34A when the original is 46A?

A: STW43N60DM2 is a lower-current alternative suitable for applications not requiring the full 46A rating. It offers advantages including significantly lower gate charge (56nC vs. 322nC), lower input capacitance (2500pF vs. 7700pF), and lower on-state resistance (93mOhm vs. 83mOhm). This part is recommended only when application current requirements are 34A or less.

Q4: Are all substitute parts RoHS3 compliant?

A: Yes. All substitute parts listed carry RoHS3 compliance certification, matching the environmental compliance of the original SPW47N60CFDFKSA1.

Q5: What does "Not For New Designs" status mean?

A: This designation indicates the manufacturer has superseded the part in their product portfolio. The part remains available for purchase and continues to function as specified, but manufacturers recommend using newer alternatives for new circuit designs. For legacy system maintenance and repair, these parts remain fully functional and appropriate.

Q6: Can I use R6046FNZ1C9 as a substitute?

A: R6046FNZ1C9 matches the 46A current rating and 600V voltage rating of the original part. However, this Rohm part is marked as Obsolete and shows significantly lower power dissipation (120W vs. 417W), indicating different thermal characteristics. Use this part only when current and voltage ratings are the primary selection criteria and thermal performance is not critical. Prefer active-status alternatives when possible.

Q7: Which substitute offers the best switching performance?

A: STW43N60DM2 offers the lowest gate charge at 56nC and lowest input capacitance at 2500pF, resulting in fastest switching speed and lowest gate drive power requirements. However, this part is limited to 34A continuous current. For higher-current applications, IXFR80N60P3 and IXFX80N60P3 offer gate charge of 190nC, providing superior switching performance compared to the original 322nC.

Q8: What package compatibility should I verify before substitution?

A: The original SPW47N60CFDFKSA1 uses TO-247-3 package. Direct substitutes must use TO-247-3 or compatible variants including ISOPLUS247™ and PLUS247™-3. These packages share identical pin configurations and mounting hole patterns, ensuring mechanical and electrical compatibility on standard PCB layouts. Verify PCB footprint compatibility before final selection.

Q9: Are automotive-qualified parts available?

A: Yes. FCH47N60-F085 and FCH104N60F-F085 carry AEC-Q101 automotive qualification. These parts are suitable for automotive and industrial applications requiring formal qualification documentation.

Q10: What is the inventory status of recommended substitutes?

A: FCH47N60-F085 has 750 pieces in stock, IXFR80N60P3 has 992 pieces, IXFX80N60P3 has 1094 pieces, and STW43N60DM2 has 2435 pieces. All recommended substitutes maintain adequate inventory for immediate availability.

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