IXTH460P2 N-Channel 500V 24A MOSFET Equivalent & Substitute Parts

Part Overview

The IXTH460P2 is an N-Channel metal oxide semiconductor field-effect transistor (MOSFET) rated for 500V drain-to-source voltage with 24A continuous drain current at 25°C. Manufactured by IXYS in the PolarP2™ series, this device is packaged in a through-hole TO-247 configuration and rated for 480W maximum power dissipation. The part carries a Last Time Buy product status, indicating that IXYS has discontinued this model. Identification of equivalent and substitute parts is necessary to maintain design continuity and ensure component availability for new production runs and field replacements.

Key Parameters

Parameter	Value	Unit
Drain-to-Source Voltage (Vdss)	500	V
Continuous Drain Current (Id) @ 25°C	24	A
On-State Resistance (Rds On) @ 12A, 10V	270	mOhm
Gate-Source Threshold Voltage (Vgs(th)) @ 250µA	4.5	V
Gate Charge (Qg) @ 10V	48	nC
Maximum Power Dissipation (Tc)	480	W
Operating Temperature Range	-55 to 150	°C
Package Type	TO-247-3	—
Mounting Type	Through Hole	—

Substitute Part Grouping Explanation

Substitution of the IXTH460P2 is determined by strict electrical and mechanical compatibility criteria. All substitute parts must meet the following requirements:

Mandatory Electrical Parameters:

Drain-to-Source Voltage (Vdss): 500V minimum
Continuous Drain Current (Id): 22A or greater at 25°C
Gate Drive Voltage: 10V
Operating Temperature Range: -55°C to 150°C minimum
Package/Case: TO-247-3 configuration

Acceptable Variation Ranges:

On-State Resistance (Rds On): 230–270 mOhm at rated current and gate voltage
Gate-Source Threshold Voltage (Vgs(th)): 3.5–5.5V at 250µA
Gate Charge (Qg): 34–150 nC at 10V
Maximum Power Dissipation: 110W or greater

Substitute parts are grouped into two categories: MFR Recommended (direct manufacturer recommendation) and Similar (electrically compatible alternatives meeting all mandatory parameters). Parts with lower current ratings (13–14A) or reduced power dissipation are listed as similar alternatives for applications where full current capacity is not required.

Parameter Comparison

Part Number	Manufacturer	Vdss (V)	Id @ 25°C (A)	Rds On (mOhm)	Vgs(th) (V)	Qg (nC)	Pd Max (W)	Package	Status
IXTH460P2	IXYS	500	24	270 @ 12A	4.5	48	480	TO-247-3	Last Time Buy
IXTH22N50P	IXYS	500	22	270 @ 11A	5.5	50	350	TO-247-3	Active
IRFP23N50LPBF	Vishay Siliconix	500	23	235 @ 14A	5	150	370	TO-247-3	Active
IRFP22N50APBF	Vishay Siliconix	500	22	230 @ 13A	4	120	277	TO-247-3	Active
SIHG20N50C-E3	Vishay Siliconix	500	20	270 @ 10A	5	76	250	TO-247-3	Active
STW20NK50Z	STMicroelectronics	500	17	270 @ 8.5A	4.5	119	190	TO-247-3	Active
STW19NM50N	STMicroelectronics	500	14	250 @ 7A	4	34	110	TO-247-3	Active
IPW50R250CPFKSA1	Infineon Technologies	500	13	250 @ 7.8A	3.5	36	114	TO-247-3	Active
STF19NM50N	STMicroelectronics	500	14	250 @ 7A	4	34	30	TO-220-3	Active

Engineering Selection Recommendations

Primary Substitute (MFR Recommended):

The IXTH22N50P is the manufacturer-recommended substitute for the IXTH460P2. Both devices are IXYS products within the same product family (Polar series), share identical 500V Vdss and 270 mOhm Rds On specifications, and are packaged in TO-247-3 through-hole configuration. The IXTH22N50P carries Active product status with 989 units in stock, ensuring long-term availability. The 22A continuous drain current rating is 2A lower than the original part; applications requiring the full 24A capacity must evaluate thermal and current distribution requirements. Both parts comply with RoHS3 and carry unlimited moisture sensitivity level (MSL 1).

Secondary Substitutes (Vishay Siliconix):

The IRFP23N50LPBF and IRFP22N50APBF are Vishay Siliconix alternatives meeting all mandatory electrical parameters. The IRFP23N50LPBF provides 23A continuous drain current with superior on-state resistance (235 mOhm) and is available in high quantity (15,301 units). The IRFP22N50APBF delivers 22A current with the lowest on-state resistance (230 mOhm) among all substitutes and maintains 15,126 units in inventory. Both devices operate across the full -55°C to 150°C temperature range and comply with RoHS3. The IRFP23N50LPBF carries REACH Affected status; the IRFP22N50APBF is REACH Unaffected.

Tertiary Substitutes (STMicroelectronics and Infineon):

The STW20NK50Z (17A, 190W) and STW19NM50N (14A, 110W) from STMicroelectronics provide reduced current capacity suitable for applications with lower current demands. The STW20NK50Z maintains 270 mOhm on-state resistance and is available in 7,794 units. The IPW50R250CPFKSA1 from Infineon (CoolMOS™ series) offers 13A continuous current with optimized on-state resistance (250 mOhm) and is available in 672 units. All STMicroelectronics and Infineon parts are Active status with RoHS3 compliance and REACH Unaffected status.

Package Consideration:

The STF19NM50N is packaged in TO-220-3 (Full Pack) rather than TO-247-3 and is not recommended as a direct substitute due to different thermal and mechanical mounting requirements, despite electrical compatibility.

Frequently Asked Questions (FAQ)

Q: Can the IXTH22N50P directly replace the IXTH460P2 in all applications?

A: The IXTH22N50P is electrically compatible and shares the same 500V Vdss, 270 mOhm Rds On, and TO-247-3 package. However, the continuous drain current is rated at 22A versus 24A. Applications operating at or near 24A continuous current must evaluate whether the 2A reduction impacts thermal performance and circuit reliability. For applications operating below 22A, direct substitution is valid.

Q: What is the difference between MFR Recommended and Similar substitutes?

A: MFR Recommended substitutes (IXTH22N50P) are explicitly designated by the original manufacturer as approved alternatives. Similar substitutes meet all mandatory electrical and mechanical parameters but are from different manufacturers. Both categories are electrically compatible; selection depends on availability, cost, and supply chain preferences.

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

A: All recommended substitutes except STF19NM50N are packaged in TO-247-3 through-hole configuration, matching the original IXTH460P2. The STF19NM50N uses TO-220-3 Full Pack packaging and requires different PCB layout and mounting hardware; it is not recommended as a direct substitute.

Q: What compliance certifications apply to all substitute parts?

A: All substitute parts listed comply with RoHS3 and carry Moisture Sensitivity Level 1 (Unlimited). Most are REACH Unaffected; the IRFP23N50LPBF is REACH Affected. All parts are classified under ECCN EAR99 and HTSUS 8541.29.0095.

Q: Which substitute offers the best on-state resistance performance?

A: The IRFP22N50APBF provides the lowest on-state resistance at 230 mOhm (measured at 13A, 10V), followed by the IPW50R250CPFKSA1 at 250 mOhm (measured at 7.8A, 10V). Lower on-state resistance reduces conduction losses and heat generation in high-current applications.

Q: Can lower-current alternatives (13–17A) be used in place of the 24A IXTH460P2?

A: Lower-current alternatives are suitable only for applications where the actual operating current does not exceed the substitute part's continuous drain current rating. These alternatives are listed as similar substitutes for designs with reduced current requirements or where thermal management allows operation at lower current densities.

Q: What is the operating temperature range for all substitute parts?

A: All substitute parts operate across the full -55°C to 150°C junction temperature range, matching the original IXTH460P2 specification. This ensures compatibility in applications requiring extended temperature operation.

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