FDP2670 N-Channel MOSFET 200V 19A Equivalent & Substitute Parts

Part Overview

The FDP2670 is an N-Channel MOSFET manufactured by onsemi, rated for 200V drain-to-source voltage with 19A continuous drain current in a Through Hole TO-220-3 package. This device is part of the PowerTrench® series and is classified as obsolete. Due to its obsolete status, equivalent substitute parts from active manufacturers are necessary to maintain design continuity and ensure long-term component availability for new production and field replacements.

Substiute Parts

FDP2670

onsemiIn Stock: 1194FDP2670 Datasheet

Current PartRFQ

PHP20NQ20T,127

NXP SemiconductorsIn Stock: 9905PHP20NQ20T,127 Datasheet

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STP19NF20

STMicroelectronicsIn Stock: 1420STP19NF20 Datasheet

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STP20NF20

STMicroelectronicsIn Stock: 2087STP20NF20 Datasheet

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STP30NF20

STMicroelectronicsIn Stock: 15362STP30NF20 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the FDP2670 is determined by strict alignment of the following electrical and mechanical parameters:

Critical Substitution Criteria:

• Drain-to-Source Voltage (Vdss): Must equal 200V
• FET Type: Must be N-Channel
• Package Type: Must be TO-220-3 or compatible TO-220 variant
• Mounting Type: Must be Through Hole
• Technology: Must be MOSFET (Metal Oxide)

Performance Alignment Parameters:

• Continuous Drain Current (Id): Substitute must meet or exceed 19A
• Rds On (Max): Substitute must not exceed 130 mOhm at rated conditions
• Gate Threshold Voltage: Must fall within acceptable switching range
• Operating Temperature Range: Must support -65°C to 175°C or equivalent industrial range
• Power Dissipation: Substitute must support thermal requirements of the application

All four substitute parts listed below satisfy these critical criteria and are qualified as direct functional equivalents.

Parameter Comparison

Engineering Selection Recommendations

PHP20NQ20T,127 (NXP Semiconductors)

This substitute offers the closest electrical match to the FDP2670. It provides 20A continuous drain current, matching the 200V Vdss rating and 130 mOhm Rds On specification. The device is classified as Active with full REACH compliance. Operating temperature range extends to 175°C, supporting the upper thermal limit of the original part. Higher power dissipation rating (150W) provides thermal margin. This part is recommended for applications requiring maximum performance parity with the obsolete FDP2670.

STP20NF20 (STMicroelectronics)

This substitute delivers 18A continuous drain current with 125 mOhm Rds On at 10A, 10V, providing superior on-resistance performance compared to the FDP2670. The device is Active with RoHS3 compliance and REACH Unaffected status. Operating temperature range extends to 175°C. Gate charge specification (39 nC) closely matches the original part. This part is suitable for applications where lower on-resistance and improved thermal performance are beneficial.

STP30NF20 (STMicroelectronics)

This substitute provides 30A continuous drain current with significantly lower on-resistance (75 mOhm at 15A, 10V), offering enhanced current handling and reduced power dissipation. The device is Active with RoHS3 compliance. Gate charge matches the FDP2670 specification (38 nC). Operating temperature range is -55°C to 150°C. This part is appropriate for applications requiring higher current capacity or where thermal management is critical, provided the lower temperature minimum (-55°C versus -65°C) is acceptable.

STP19NF20 (STMicroelectronics)

This substitute provides 15A continuous drain current with 160 mOhm Rds On, representing a conservative substitution option. The device is Active with RoHS3 compliance. Operating temperature range is -55°C to 150°C. Lower gate charge (24 nC) reduces switching losses. This part is suitable for applications where the FDP2670's 19A rating exceeds actual requirements and cost optimization is a consideration.

Frequently Asked Questions (FAQ)

Q: Can the FDP2670 be directly replaced with any of these substitute parts?

A: All four substitute parts are electrically and mechanically compatible with the FDP2670 based on critical parameters: 200V Vdss, N-Channel configuration, TO-220 package family, and Through Hole mounting. However, application-specific requirements such as current capacity, thermal dissipation, and operating temperature range must be verified against actual circuit demands.

Q: What is the primary reason for finding substitutes for the FDP2670?

A: The FDP2670 is classified as obsolete. Substitute parts from active manufacturers ensure continued component availability for production, field service, and design updates without supply chain interruption.

Q: Are all substitute parts pin-compatible with the FDP2670?

A: Yes. All substitute parts use the TO-220 package family with Through Hole mounting, providing mechanical and pin compatibility. TO-220-3, TO-220AB, and TO-220 variants share identical pin configurations for drain, gate, and source terminals.

Q: Which substitute offers the best performance match to the FDP2670?

A: The PHP20NQ20T,127 provides the closest electrical alignment, with 20A continuous drain current and 130 mOhm Rds On matching the original specification. It also supports the full -55°C to 175°C operating range, covering the FDP2670's upper temperature limit.

Q: Can I use the STP30NF20 if my application only requires 19A?

A: Yes. The STP30NF20 is rated for 30A continuous drain current, exceeding the 19A requirement. Its lower on-resistance (75 mOhm) reduces power dissipation and heat generation, providing thermal margin. Verify that the lower minimum operating temperature (-55°C versus -65°C) is acceptable for your application environment.

Q: What is the difference between the STP19NF20 and STP20NF20?

A: The STP19NF20 provides 15A continuous drain current with 160 mOhm Rds On and lower gate charge (24 nC), suitable for lower-current applications. The STP20NF20 provides 18A continuous drain current with 125 mOhm Rds On and gate charge of 39 nC, offering better performance alignment with the FDP2670 for higher-current circuits.

Q: Are there compliance or certification differences between the substitutes?

A: All substitute parts are REACH Unaffected. The STMicroelectronics parts (STP19NF20, STP20NF20, STP30NF20) carry RoHS3 compliance certification. The NXP part (PHP20NQ20T,127) does not specify RoHS status in the provided data. Verify compliance requirements for your specific application or regulatory jurisdiction.

Q: What is the impact of gate charge differences on circuit performance?

A: Gate charge (Qg) affects switching speed and driver circuit requirements. The FDP2670 specifies 38 nC. The STP20NF20 and STP30NF20 match this specification (39 nC and 38 nC respectively), ensuring compatible gate drive characteristics. The STP19NF20 has lower gate charge (24 nC), reducing switching losses but requiring verification of gate driver compatibility. The PHP20NQ20T,127 has higher gate charge (65 nC), requiring higher gate drive energy.

Q: Can I use these substitutes in high-temperature applications?

A: The FDP2670 supports -65°C to 175°C. The PHP20NQ20T,127 and STP20NF20 support -55°C to 175°C, covering the upper thermal limit. The STP19NF20 and STP30NF20 support -55°C to 150°C, limiting operation below 175°C. For applications requiring operation above 150°C, use PHP20NQ20T,127 or STP20NF20.

Q: What is the significance of on-resistance (Rds On) in selecting a substitute?

A: Rds On determines conduction losses and heat generation. The FDP2670 specifies 130 mOhm maximum. The PHP20NQ20T,127 and STP20NF20 match or improve this specification (130 mOhm and 125 mOhm respectively). The STP30NF20 provides significantly lower Rds On (75 mOhm), reducing power dissipation. The STP19NF20 has higher Rds On (160 mOhm), increasing conduction losses. Select based on thermal budget and efficiency requirements.