IXFC15N80Q Equivalent & Substitute Parts

Part Overview

The IXFC15N80Q is an N-Channel MOSFET rated for 800V drain-to-source voltage with 13A continuous drain current at 25°C. Manufactured by IXYS in the HiPerFET™ series, this device is packaged in ISOPLUS220™ through-hole configuration and rated for 230W power dissipation. The part is classified as obsolete, necessitating identification of equivalent and substitute components for ongoing design support and procurement.

Key Parameters

Parameter	Value	Unit
Drain-to-Source Voltage (Vdss)	800	V
Continuous Drain Current (Id) @ 25°C	13	A
Power Dissipation (Max)	230	W
On-State Resistance (Rds On Max) @ 10V	650	mOhm
Gate Charge (Qg Max) @ 10V	90	nC
Gate-Source Voltage (Vgs Max)	±20	V
Operating Temperature Range	-40 to 150	°C
Mounting Type	Through Hole	—
Package Type	ISOPLUS220™	—

Substitute Part Grouping Explanation

Substitution of the IXFC15N80Q is determined by the following critical electrical and mechanical parameters:

Voltage Rating: All substitute parts maintain the 800V Vdss specification, ensuring compatibility in high-voltage switching applications.

Current Capability: Substitute parts range from 6A to 19.5A continuous drain current. Parts with lower current ratings (6A, 8A) are suitable for applications with reduced current demands. The STP25N80K5 with 19.5A rating accommodates higher current requirements while maintaining the 800V voltage class.

On-State Resistance (Rds On): The IXFC15N80Q specifies 650mOhm at 10V. Substitute parts exhibit Rds On values between 260mOhm and 900mOhm, affecting conduction losses and thermal performance.

Power Dissipation: The main part is rated for 230W. Substitute parts range from 28.4W to 250W, with lower-rated devices suitable for reduced power applications and the STP25N80K5 (250W) accommodating equivalent or higher thermal loads.

Gate Charge (Qg): Values range from 29nC to 90nC at 10V, affecting switching speed and drive circuit requirements.

Package Type: The IXFC15N80Q uses ISOPLUS220™ through-hole packaging. Substitute parts employ TO-220-3 or TO-220FP packages, which are standard through-hole alternatives with different thermal and mechanical characteristics.

Operating Temperature: All parts operate across -40°C to -55°C minimum and 150°C maximum, ensuring thermal compatibility.

Parameter Comparison

Parameter	IXFC15N80Q	FCPF650N80Z	FCPF850N80Z	SPA06N80C3XKSA1	SPA08N80C3XKSA1	STF12NK80Z	STP25N80K5
Manufacturer	IXYS	onsemi	onsemi	Infineon	Infineon	STMicroelectronics	STMicroelectronics
Vdss (V)	800	800	800	800	800	800	800
Id @ 25°C (A)	13	8	6	6	8	10.5	19.5
Rds On Max @ 10V (mOhm)	650	650	850	900	650	750	260
Qg Max @ 10V (nC)	90	35	29	41	60	87	40
Power Dissipation Max (W)	230	30.5	28.4	39	40	40	250
Operating Temperature (°C)	-40 to 150	-55 to 150	-55 to 150	-55 to 150	-55 to 150	-55 to 150	-55 to 150
Package Type	ISOPLUS220™	TO-220F-3	TO-220F-3	PG-TO220-3-31	PG-TO220-3-31	TO-220FP	TO-220
Product Status	Obsolete	Not For New Designs	Not For New Designs	Active	Active	Active	Active
RoHS Status	Not Specified	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant

Engineering Selection Recommendations

For Direct Replacement with Equivalent Performance:

The STP25N80K5 provides the closest electrical match to the IXFC15N80Q, with 19.5A continuous drain current and 250W power dissipation capability. This part is active and ROHS3 compliant, making it suitable for new designs. The 260mOhm on-state resistance is significantly lower than the main part, reducing conduction losses. The TO-220 package is a standard through-hole alternative to ISOPLUS220™.

For Current-Limited Applications:

The SPA08N80C3XKSA1 and STF12NK80Z offer intermediate current ratings (8A and 10.5A respectively) with active product status and full compliance certifications. Both maintain 800V voltage rating and provide adequate power dissipation for reduced-current applications.

For Lower-Current Applications:

The FCPF650N80Z (8A) and SPA06N80C3XKSA1 (6A) are suitable where application current requirements do not exceed their rated values. The FCPF850N80Z (6A) is available but carries "Not For New Designs" status.

Compliance Considerations:

All substitute parts except FCPF650N80Z and FCPF850N80Z carry active product status. The onsemi parts (FCPF series) are designated "Not For New Designs," limiting their use to legacy system support. Infineon (SPA series) and STMicroelectronics (STF and STP series) parts are active and ROHS3 compliant, supporting long-term design continuity.

Frequently Asked Questions (FAQ)

Q: Can the FCPF650N80Z directly replace the IXFC15N80Q?

A: The FCPF650N80Z shares the 800V voltage rating and 650mOhm on-state resistance but is rated for only 8A continuous current compared to the IXFC15N80Q's 13A. It is suitable only for applications with current demands not exceeding 8A. Additionally, this part carries "Not For New Designs" status. The TO-220F-3 package differs from the ISOPLUS220™ package of the main part.

Q: What is the primary difference between the SPA08N80C3XKSA1 and STF12NK80Z?

A: Both parts maintain 800V voltage rating and are active products. The STF12NK80Z provides 10.5A continuous current versus the SPA08N80C3XKSA1's 8A. The STF12NK80Z has 87nC gate charge compared to 60nC for the SPA08N80C3XKSA1, affecting switching characteristics. Both use TO-220 family packages and are ROHS3 compliant.

Q: Is the STP25N80K5 suitable for all applications requiring the IXFC15N80Q?

A: The STP25N80K5 exceeds the electrical specifications of the IXFC15N80Q in current (19.5A versus 13A) and power dissipation (250W versus 230W). It is suitable for applications with current demands up to 19.5A and maintains the 800V voltage rating. The lower on-state resistance (260mOhm) reduces conduction losses. The TO-220 package is a standard through-hole alternative. This part is active and ROHS3 compliant.

Q: Why do some substitute parts have lower power dissipation ratings?

A: Power dissipation ratings reflect the thermal capability of the specific package type. The FCPF650N80Z, FCPF850N80Z, SPA06N80C3XKSA1, and STF12NK80Z are rated for 28.4W to 40W due to their TO-220 family packages, which have lower thermal mass than the ISOPLUS220™ package. Applications requiring higher power dissipation should select the STP25N80K5 (250W) or evaluate thermal management solutions.

Q: Are all substitute parts through-hole mounted?

A: Yes, all substitute parts listed are through-hole mounted. The IXFC15N80Q uses ISOPLUS220™ packaging, while substitutes employ TO-220, TO-220F-3, or TO-220FP packages. These are all through-hole configurations with different mechanical footprints and thermal characteristics.

Q: Which substitute parts are recommended for new designs?

A: The SPA08N80C3XKSA1, SPA06N80C3XKSA1, STF12NK80Z, and STP25N80K5 are all active products with ROHS3 compliance. The FCPF650N80Z and FCPF850N80Z carry "Not For New Designs" status and should be used only for legacy system support or repair applications.

Q: How does gate charge affect the selection of a substitute part?

A: Gate charge (Qg) determines the energy required to switch the MOSFET and affects drive circuit design. The IXFC15N80Q specifies 90nC at 10V. Substitute parts range from 29nC to 87nC. Lower gate charge reduces switching losses and simplifies drive circuit requirements. Higher gate charge may require more robust gate drive circuitry but is not incompatible with existing designs.

Q: What thermal considerations apply when substituting packages?

A: The ISOPLUS220™ package of the IXFC15N80Q has different thermal characteristics than TO-220 family packages used by substitutes. Applications requiring the full 230W power dissipation should verify that the selected substitute package provides adequate thermal performance through thermal modeling or testing. The STP25N80K5 with 250W rating and TO-220 package is the closest thermal match.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message