IXTA5N50P N-Channel MOSFET 500V 4.8A Equivalent & Substitute Parts

Part Overview

The IXTA5N50P is an N-Channel MOSFET manufactured by IXYS in the PolarHV™ series, rated for 500V drain-to-source voltage with 4.8A continuous drain current at 25°C. The device is packaged in TO-263AA surface mount configuration and is currently classified as obsolete. Due to its obsolete status, equivalent and substitute parts from active product lines are necessary to maintain design continuity and ensure long-term component availability for new production and field replacements.

Substiute Parts

IXTA5N50P

IXYSIn Stock: 1049IXTA5N50P Datasheet

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IXTA8N65X2

IXYSIn Stock: 852IXTA8N65X2 Datasheet

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IRF830ASPBF

Vishay SiliconixIn Stock: 1413IRF830ASPBF Datasheet

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IRF830ASTRLPBF

Vishay SiliconixIn Stock: 10345IRF830ASTRLPBF Datasheet

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STD5N52K3

STMicroelectronicsIn Stock: 57646STD5N52K3 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the IXTA5N50P is determined by the following critical electrical and mechanical parameters:

Electrical Compatibility Criteria:

• Drain to Source Voltage (Vdss) must be equal to or greater than 500V
• Continuous Drain Current (Id) must be equal to or greater than 4.8A at 25°C
• On-state resistance (Rds On) must not exceed 1.4 Ohm at the specified gate voltage
• Gate threshold voltage (Vgs(th)) must be compatible with 10V drive voltage
• Maximum gate voltage (Vgs Max) must be ±30V or greater
• Operating temperature range must encompass -55°C to 150°C

Mechanical Compatibility Criteria:

• Mounting type must be Surface Mount
• Package must be TO-263 series (D2PAK configuration with 2 Leads + Tab)
• Moisture Sensitivity Level must be 1 (Unlimited) or equivalent

Regulatory and Compliance Criteria:

• REACH Status: REACH Unaffected
• ECCN: EAR99
• HTSUS: 8541.29.0095

Substitute parts are grouped into two categories: direct electrical equivalents (matching Vdss and Id specifications) and higher-rated alternatives (exceeding voltage and/or current ratings while maintaining package compatibility).

Parameter Comparison

Engineering Selection Recommendations

Direct Electrical Equivalents (500V Rating):

The IRF830ASPBF and IRF830ASTRLPBF from Vishay Siliconix are direct electrical equivalents to the IXTA5N50P. Both devices maintain the 500V Vdss rating and provide 5A continuous drain current, exceeding the original 4.8A specification. Both parts are ROHS3 compliant and carry active product status, ensuring long-term availability. The IRF830ASTRLPBF is supplied in Tape & Reel packaging with significantly higher inventory (10,265 pcs), making it the preferred choice for high-volume production. The IRF830ASPBF is supplied in Tube packaging with 1,376 pcs in stock. Both share identical electrical characteristics and TO-263 (D2PAK) packaging compatibility.

Higher-Rated Alternative (650V Rating):

The IXTA8N65X2 from IXYS provides enhanced voltage and current ratings (650V, 8A) while maintaining the same manufacturer lineage as the original part. This device features superior on-state resistance (0.5 Ohm versus 1.4 Ohm) and higher power dissipation capability (150W versus 89W). The IXTA8N65X2 is ROHS3 compliant and carries active product status. This option is suitable for applications requiring design margin or where higher voltage stress tolerance is beneficial. Inventory availability is 786 pcs.

Near-Equivalent Alternative (525V Rating):

The STD5N52K3 from STMicroelectronics provides a 525V Vdss rating with 4.4A continuous drain current, closely matching the original specification. This device is supplied in DPAK packaging (TO-252-3 series) rather than TO-263, requiring PCB layout modification. The STD5N52K3 is ROHS3 compliant with active product status and offers the highest inventory availability (57,600 pcs). On-state resistance is 1.5 Ohm at 2.2A, marginally higher than the original specification.

Regulatory Compliance:

All substitute parts maintain REACH Unaffected status and EAR99 ECCN classification, matching the original part's regulatory profile. All substitute parts are ROHS3 compliant, exceeding the original part's compliance requirements.

Frequently Asked Questions (FAQ)

Q: Can the IRF830ASTRLPBF directly replace the IXTA5N50P without circuit modification?

A: Yes. The IRF830ASTRLPBF maintains identical 500V Vdss rating, exceeds the 4.8A current requirement with 5A capability, and is packaged in TO-263 (D2PAK) configuration compatible with the original part. Electrical characteristics including Rds On, gate threshold voltage, and maximum gate voltage are compatible with the original design.

Q: What is the primary difference between IRF830ASPBF and IRF830ASTRLPBF?

A: Both parts are electrically identical. The primary difference is packaging format: IRF830ASPBF is supplied in Tube packaging, while IRF830ASTRLPBF is supplied in Tape & Reel format. Tape & Reel packaging is standard for automated assembly processes. IRF830ASTRLPBF has significantly higher inventory availability (10,265 pcs versus 1,376 pcs).

Q: Why is the STD5N52K3 packaged in DPAK instead of TO-263?

A: The STD5N52K3 uses DPAK (TO-252-3) packaging, which is a different surface mount package from the TO-263 (D2PAK) used by the original part. While both are surface mount packages with similar thermal performance, DPAK has different pin spacing and PCB footprint. This substitution requires PCB layout redesign and is not a direct drop-in replacement.

Q: Is the IXTA8N65X2 suitable for applications designed for the IXTA5N50P?

A: Yes. The IXTA8N65X2 exceeds all electrical requirements of the original part: 650V Vdss (versus 500V required), 8A continuous current (versus 4.8A required), and superior on-state resistance (0.5 Ohm versus 1.4 Ohm). The device is packaged in TO-263 configuration compatible with the original part. This substitution provides design margin and is suitable for applications where higher voltage stress tolerance is beneficial.

Q: What is the impact of higher gate charge (Qg) in the IRF830 series?

A: The IRF830ASPBF and IRF830ASTRLPBF have gate charge of 24 nC at 10V, compared to 12.6 nC for the IXTA5N50P. Higher gate charge requires more energy to switch the device and may increase switching losses in high-frequency applications. This parameter should be evaluated in the specific circuit context, particularly in switching power supply designs operating above 100 kHz.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All substitute parts listed (IXTA8N65X2, IRF830ASPBF, IRF830ASTRLPBF, and STD5N52K3) are ROHS3 compliant. The original IXTA5N50P does not specify RoHS compliance status. All substitute parts maintain REACH Unaffected status and EAR99 ECCN classification.

Q: Which substitute part offers the best long-term availability?

A: The IRF830ASTRLPBF offers the highest current inventory (10,265 pcs) and carries active product status from Vishay Siliconix, a major semiconductor manufacturer with established long-term supply chains. The STD5N52K3 also offers excellent availability (57,600 pcs) from STMicroelectronics. Both are suitable for designs requiring long-term component sourcing.

Q: Can the IXTA5N50P be used interchangeably with the IXTA8N65X2 in existing designs?

A: Yes, with design verification. The IXTA8N65X2 is a higher-rated device that exceeds all electrical specifications of the IXTA5N50P. The primary consideration is gate charge: the IXTA8N65X2 has slightly lower gate charge (12 nC versus 12.6 nC), which may reduce switching losses. Both devices share the same manufacturer (IXYS) and TO-263 packaging, ensuring mechanical compatibility.