IXFH15N60 N-Channel MOSFET Equivalent & Substitute Parts

Part Overview

The IXFH15N60 is an N-Channel 600V 15A MOSFET manufactured by IXYS in the HiPerFET™ series, housed in a TO-247AD through-hole package. This device is rated for 300W power dissipation and operates across a temperature range of -55°C to 150°C. The part is currently marked as "Not For New Designs," indicating it has reached end-of-life status. Identifying equivalent and substitute parts is necessary for ongoing maintenance, repair, and legacy system support where the original component is no longer available or procurement is limited.

Key Parameters

Parameter	Value	Unit
Drain to Source Voltage (Vdss)	600	V
Continuous Drain Current (Id) @ 25°C	15	A
Power Dissipation (Max)	300	W
Rds On (Max) @ 500mA, 10V	500	mOhm
Gate Charge (Qg) @ 10V	170	nC
Input Capacitance (Ciss) @ 25V	4500	pF
Vgs(th) @ 4mA	4.5	V
Operating Temperature Range	-55 to 150	°C
Package Type	TO-247-3	—
Mounting Type	Through Hole	—

Substitute Part Grouping Explanation

Substitution of the IXFH15N60 is determined by the following critical electrical and mechanical parameters:

Primary Substitution Criteria:

Drain to Source Voltage (Vdss): 600V minimum (allows higher voltage ratings)
Continuous Drain Current (Id): 15A minimum at 25°C
Package Type: TO-247-3 (mechanical compatibility)
Mounting Type: Through Hole
Operating Temperature Range: -55°C to 150°C minimum

Secondary Compatibility Factors:

Rds On characteristics (lower values indicate improved performance)
Gate Charge (Qg) and Input Capacitance (Ciss) affect switching behavior
Power Dissipation capability (300W reference)

Substitute parts are grouped into two categories:

Category A – Direct Voltage/Current Match (600V, 11-15A): Parts meeting or exceeding the 600V and 15A specifications with comparable power ratings. These include IRFPC50APBF, IRFPC50LCPBF, IRFPC50PBF, and STW13NK60Z.

Category B – Higher Voltage Alternatives (800V, 11-12A): Parts with elevated voltage ratings (800V) and slightly reduced current ratings (11-12A). These include SPW11N80C3FKSA1, STW13N80K5, and SIHG11N80E-GE3. These are suitable for applications where higher voltage margin is beneficial.

Category C – Specialized Performance (650V, 15A): The SPW15N60C3FKSA1 offers 650V rating with 15A current, providing enhanced voltage headroom while maintaining current capacity.

Parameter Comparison

Part Number	Manufacturer	Vdss (V)	Id @ 25°C (A)	Rds On (mOhm)	Qg (nC)	Ciss (pF)	Power Diss. (W)	Package	Status
IXFH15N60	IXYS	600	15	500	170	4500	300	TO-247-3	Not For New Designs
IRFPC50APBF	Vishay Siliconix	600	11	580	70	2100	180	TO-247-3	Active
IRFPC50LCPBF	Vishay Siliconix	600	11	600	84	2300	190	TO-247-3	Active
IRFPC50PBF	Vishay Siliconix	600	11	600	140	2700	180	TO-247-3	Active
SPW15N60C3FKSA1	Infineon Technologies	650	15	280	63	1660	156	TO-247-3	Last Time Buy
STW13NK60Z	STMicroelectronics	600	13	550	92	2030	150	TO-247-3	Active
SIHG11N80E-GE3	Vishay Siliconix	800	12	440	88	1670	179	TO-247-3	Active
SPW11N80C3FKSA1	Infineon Technologies	800	11	450	85	1600	156	TO-247-3	Not For New Designs
STW13N80K5	STMicroelectronics	800	12	450	29	870	190	TO-247-3	Active
STW14NK50Z	STMicroelectronics	500	14	380	92	2000	150	TO-247-3	Active

Engineering Selection Recommendations

For Direct Replacement (Equivalent Performance):

The SPW15N60C3FKSA1 (Infineon Technologies) is the closest functional equivalent. It matches the 15A continuous drain current and provides 650V rating, exceeding the 600V specification. This part is RoHS3 compliant and carries active product status, ensuring long-term availability. However, it is marked as "Last Time Buy," indicating limited procurement window. The lower Rds On (280 mOhm vs. 500 mOhm) and reduced gate charge (63 nC vs. 170 nC) provide improved switching efficiency.

For Active Production Applications:

The STW13NK60Z (STMicroelectronics) offers 600V rating with 13A continuous current and is actively produced. It provides RoHS3 compliance and MSL 1 rating. While current rating is slightly below the original 15A specification, it remains suitable for applications with 13A or lower requirements. The 550 mOhm Rds On is comparable to the original part.

For Higher Voltage Margin Applications:

The STW13N80K5 (STMicroelectronics) provides 800V rating with 12A continuous current, RoHS3 compliance, and active production status. The significantly lower gate charge (29 nC vs. 170 nC) and input capacitance (870 pF vs. 4500 pF) indicate superior switching characteristics. This part is recommended where voltage headroom is critical and current requirements do not exceed 12A.

For Vishay-Based Systems:

The IRFPC50APBF (Vishay Siliconix) maintains 600V rating with 11A continuous current and is actively produced with RoHS3 compliance. The reduced gate charge (70 nC) and input capacitance (2100 pF) provide faster switching response compared to the original IXFH15N60.

Compliance Considerations:

All recommended active substitutes are RoHS3 compliant with MSL 1 (Unlimited) moisture sensitivity rating, ensuring compatibility with modern manufacturing and storage requirements. The original IXFH15N60 is RoHS non-compliant, making active substitutes preferable for new procurement.

Frequently Asked Questions (FAQ)

Q: Can the IRFPC50 series parts directly replace the IXFH15N60 in all applications?

A: The IRFPC50 series (IRFPC50APBF, IRFPC50LCPBF, IRFPC50PBF) maintains the 600V voltage rating and TO-247-3 package compatibility. However, continuous drain current is rated at 11A versus the original 15A. Direct replacement is suitable only for applications requiring 11A or less. Rds On values (580-600 mOhm) are slightly higher than the original (500 mOhm), resulting in marginally increased conduction losses.

Q: What is the advantage of selecting an 800V-rated part like the STW13N80K5 over a 600V equivalent?

A: Higher voltage-rated devices provide increased safety margin in applications subject to voltage transients or overshoot conditions. The STW13N80K5 offers superior switching characteristics with gate charge of 29 nC compared to 170 nC in the original part, enabling faster switching and reduced switching losses. The trade-off is slightly reduced continuous current (12A vs. 15A) and lower power dissipation rating (190W vs. 300W).

Q: Is the SPW15N60C3FKSA1 suitable for long-term production use?

A: The SPW15N60C3FKSA1 is marked as "Last Time Buy," indicating Infineon has announced end-of-life for this product. While it is currently available and offers the best electrical match (15A, 650V), procurement should be completed within the announced Last Time Buy window. For new long-term production designs, the STW13NK60Z or STW13N80K5 are recommended as they carry active product status.

Q: How do gate charge and input capacitance differences affect circuit design?

A: Gate charge (Qg) and input capacitance (Ciss) directly impact gate driver requirements and switching speed. The original IXFH15N60 has Qg of 170 nC and Ciss of 4500 pF. Substitutes with lower values (e.g., STW13N80K5 with 29 nC and 870 pF) require less gate charge and switch faster, potentially allowing higher switching frequencies or reducing gate driver power consumption. Conversely, parts with higher values may require gate driver adjustments to maintain switching performance.

Q: Are all substitute parts available in the same packaging format?

A: All listed substitute parts use the TO-247-3 package, ensuring mechanical compatibility with existing PCB layouts and heatsink mounting. However, the original IXFH15N60 uses TO-247AD (IXFH variant), while substitutes use standard TO-247AC or PG-TO247-3-1 variants. Pin assignments remain identical (Gate, Drain, Source), but physical dimensions may have minor variations. Verification with component datasheets is recommended before PCB redesign.

Q: What is the impact of lower power dissipation ratings in substitute parts?

A: Several substitutes (IRFPC50 series at 180-190W, SPW15N60C3FKSA1 at 156W) have lower power dissipation ratings than the original 300W specification. This reflects improved efficiency (lower Rds On) rather than reduced capability. In applications where the original part dissipated less than 200W, substitutes with lower ratings are fully adequate. For applications approaching 300W dissipation, thermal analysis is required to confirm adequate heatsinking with the substitute part.

Q: Which substitute offers the best RoHS compliance and supply chain stability?

A: The STW13NK60Z and STW13N80K5 (both STMicroelectronics) offer the strongest combination of active product status, RoHS3 compliance, and established supply chain presence. Both are actively manufactured and widely distributed through multiple channels, ensuring long-term availability and consistent pricing.

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