IXTY3N60P N-Channel 600V 3A MOSFET Equivalent & Substitute Parts

Part Overview

The IXTY3N60P is an N-Channel 600V 3A surface mount MOSFET manufactured by IXYS in the PolarHV™ series. This device is classified as obsolete, necessitating identification of equivalent and substitute components for ongoing design support and procurement. The IXTY3N60P operates in the TO-252AA package (DPAK) and is suitable for applications requiring moderate voltage and current handling in a compact surface mount form factor. Substitute parts must maintain functional compatibility across critical electrical parameters while accommodating the transition from obsolete to active product lines.

Key Parameters

Parameter	Value	Unit
Drain to Source Voltage (Vdss)	600	V
Continuous Drain Current (Id) @ 25°C	3	A
Rds On (Max) @ 500mA, 10V	2.9	Ohm
Gate Threshold Voltage (Vgs(th)) @ 50µA	5.5	V
Gate Charge (Qg) @ 10V	9.8	nC
Power Dissipation (Max)	70	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 IXTY3N60P is determined by the following critical electrical and mechanical parameters:

Primary Substitution Criteria:

Drain to Source Voltage (Vdss): Minimum 600V required; higher voltage ratings are acceptable
Continuous Drain Current (Id): Minimum 3A required; higher current ratings are acceptable
On-State Resistance (Rds On): Must not exceed 2.9 Ohm at specified test conditions to maintain thermal performance
Gate Threshold Voltage (Vgs(th)): Must fall within acceptable switching characteristics (typically 3.5V to 5.5V)
Package Type: TO-252-3 (DPAK) form factor with identical pinout
Mounting Type: Surface mount compatibility required
Operating Temperature: Full range -55°C to 150°C required

Secondary Compatibility Factors:

Gate Charge (Qg): Lower values indicate faster switching; values between 4.6 nC and 16 nC are acceptable
Power Dissipation: Minimum 18W; higher ratings provide thermal margin
RoHS and REACH Compliance: Active substitutes must maintain regulatory compliance

Substitute parts are grouped into two categories: direct replacements (matching or exceeding all primary criteria within tight tolerances) and functional alternatives (meeting primary criteria with acceptable trade-offs in secondary parameters).

Parameter Comparison

Parameter	IXTY3N60P	STD3N62K3	STD2N62K3	IXTY4N65X2	IPD60R3K3C6ATMA1	IPD80R3K3P7ATMA1	FCD3400N80Z	SPD02N80C3ATMA1	STDLED623
Vdss (V)	600	620	620	650	600	800	800	800	620
Id @ 25°C (A)	3	2.7	2.2	4	1.7	1.9	2	2	3
Rds On (Max) (Ohm)	2.9	2.5	3.6	0.85	3.3	3.3	3.4	2.7	3.6
Vgs(th) (V)	5.5	4.5	4.5	5	3.5	3.5	4.5	3.9	4.5
Qg @ 10V (nC)	9.8	13	15	8.3	4.6	5.8	9.6	16	15.5
Power Dissipation (W)	70	45	45	80	18.1	18	32	42	45
Operating Temp (°C)	-55 to 150	-55 to 150	-55 to 150	-55 to 150	-55 to 150	-55 to 150	-55 to 150	-55 to 150	-55 to 150
Package	TO-252-3	TO-252-3	TO-252-3	TO-252-3	TO-252-3	TO-252-3	TO-252-3	TO-252-3	TO-252-3
Mounting	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount
Product Status	Obsolete	Active	Active	Active	Active	Active	Not For New Designs	Active	Active
RoHS Compliance	—	ROHS3	ROHS3	—	ROHS3	ROHS3	ROHS3	ROHS3	ROHS3

Engineering Selection Recommendations

Tier 1 Direct Replacements (Preferred for Existing Designs):

STD3N62K3 (STMicroelectronics) and STDLED623 (STMicroelectronics) are the primary substitutes for the IXTY3N60P. Both devices are classified as Active products with ROHS3 compliance. STD3N62K3 provides 2.7A continuous drain current at 620V with 2.5 Ohm Rds On, delivering superior on-state performance. STDLED623 matches the 3A current rating of the original part at 620V with 3.6 Ohm Rds On. Both maintain identical TO-252-3 packaging and full operating temperature range (-55°C to 150°C). These parts are recommended for direct substitution in existing designs due to active product status and regulatory compliance.

Tier 2 Functional Alternatives (For New Designs):

IXTY4N65X2 (IXYS, Active) provides higher performance within the same manufacturer ecosystem. This device offers 4A continuous drain current at 650V with 0.85 Ohm Rds On, representing significant improvement in current handling and on-state efficiency. Gate charge is reduced to 8.3 nC, enabling faster switching characteristics. This part is suitable for new designs requiring enhanced performance margins.

SPD02N80C3ATMA1 (Infineon Technologies, Active) operates at 800V with 2A continuous drain current and 2.7 Ohm Rds On. This higher voltage rating provides additional design margin for applications subject to voltage transients. ROHS3 compliance and active product status support long-term availability.

Tier 3 Limited Substitutes (Reduced Current or Power Dissipation):

IPD60R3K3C6ATMA1 and IPD80R3K3P7ATMA1 (Infineon Technologies CoolMOS™ series, both Active) deliver reduced continuous drain current (1.7A and 1.9A respectively) but offer superior gate charge characteristics (4.6 nC and 5.8 nC) and lower input capacitance. These parts are suitable only for applications where the 3A current requirement can be reduced or where switching speed is prioritized over current capacity.

FCD3400N80Z (onsemi SuperFET® II, Not For New Designs) is classified as not suitable for new designs and should be avoided for new product development despite active inventory status.

Regulatory and Compliance Considerations:

All recommended Tier 1 and Tier 2 substitutes maintain ROHS3 compliance and REACH Unaffected status, matching the regulatory profile of the original IXTY3N60P. Moisture Sensitivity Level (MSL) is uniformly rated as 1 (Unlimited) across all candidates, eliminating moisture-related handling constraints.

Frequently Asked Questions (FAQ)

Q: Can STD3N62K3 directly replace IXTY3N60P in existing PCB layouts?

A: Yes. Both devices use identical TO-252-3 (DPAK) packaging with matching pinout (Gate, Drain, Source). No PCB modifications are required. The 620V Vdss rating of STD3N62K3 exceeds the 600V requirement, and the 2.5 Ohm Rds On provides improved on-state performance compared to the original 2.9 Ohm specification.

Q: What is the primary difference between STD3N62K3 and STDLED623?

A: Both are STMicroelectronics 620V devices in TO-252-3 packaging. STD3N62K3 is rated for 2.7A continuous drain current with 2.5 Ohm Rds On, while STDLED623 is rated for 3A continuous drain current with 3.6 Ohm Rds On. STDLED623 matches the original 3A rating but with slightly higher on-state resistance. STD3N62K3 offers lower resistance at reduced current capacity. Selection depends on whether current capacity or on-state efficiency is prioritized.

Q: Why is IXTY4N65X2 listed as a substitute if it has lower Rds On (0.85 Ohm vs. 2.9 Ohm)?

A: Lower Rds On is a performance improvement, not a limitation. IXTY4N65X2 delivers superior on-state efficiency with reduced power dissipation. The 4A current rating and 650V Vdss exceed the original specifications, providing additional design margin. This part is suitable for new designs where enhanced performance is beneficial.

Q: Are the Infineon CoolMOS™ parts (IPD60R3K3C6ATMA1 and IPD80R3K3P7ATMA1) suitable replacements?

A: These parts are functional alternatives only for applications where continuous drain current can be reduced below 3A. IPD60R3K3C6ATMA1 is rated for 1.7A at 600V, and IPD80R3K3P7ATMA1 is rated for 1.9A at 800V. Both offer superior gate charge characteristics (4.6 nC and 5.8 nC respectively) and lower input capacitance, making them suitable for high-frequency switching applications with reduced current requirements. They are not direct replacements for 3A applications.

Q: What does "Not For New Designs" mean for FCD3400N80Z?

A: This product status indicates that while the part remains in inventory and functional, the manufacturer (onsemi) does not recommend its use in new product development. Existing designs using this part may continue to source it, but new designs should select from Active status alternatives such as SPD02N80C3ATMA1 or STD3N62K3 to ensure long-term availability and manufacturer support.

Q: How do I determine which substitute is best for my application?

A: Prioritize parts with Active product status for new designs. For existing designs, STD3N62K3 or STDLED623 provide the closest electrical match to IXTY3N60P. If your application requires higher voltage margin, select SPD02N80C3ATMA1 (800V). If switching speed is critical and current can be reduced, consider the Infineon CoolMOS™ series. Verify that the selected part's continuous drain current rating meets or exceeds your application's maximum sustained current requirement.

Q: Are all substitute parts RoHS compliant?

A: All recommended substitutes (Tier 1 and Tier 2) carry ROHS3 compliance certification. The original IXTY3N60P does not specify RoHS status in the provided data. All parts maintain REACH Unaffected status and MSL 1 (Unlimited) moisture sensitivity rating, ensuring compatibility with standard manufacturing and storage practices.

Q: Can I use a higher voltage-rated device (800V) in place of a 600V device?

A: Yes. Higher voltage ratings provide additional design margin and do not compromise functionality in 600V applications. Devices such as IPD80R3K3P7ATMA1 and SPD02N80C3ATMA1 (both 800V) are suitable for applications originally designed for 600V operation. Verify that gate drive voltage and other circuit parameters remain compatible with the selected substitute.

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