FT2000AG Equivalent & Substitute Parts

Part Overview

The FT2000AG is a fast recovery rectifier diode manufactured by Diotec Semiconductor, rated for 400 V DC reverse voltage with 20 A average rectified current. The device is packaged in a TO-220AC through-hole configuration and features a reverse recovery time of 200 ns, making it suitable for high-frequency switching applications. The part is currently in active production status with 887 units in stock.

Substitute parts are identified when equivalent electrical performance and mechanical compatibility can be maintained across critical parameters including voltage rating, current capacity, package type, and thermal operating range. Alternative components may be required due to supply chain availability, lead time considerations, or design optimization needs.

Substiute Parts

FT2000AG

Diotec SemiconductorIn Stock: 959FT2000AG Datasheet

Current PartRFQ

STTH30R04D

STMicroelectronicsIn Stock: 1745STTH30R04D Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the FT2000AG is determined by the following critical parameters:

Voltage Compatibility: The substitute part must maintain the same DC reverse voltage rating of 400 V to ensure equivalent blocking capability and circuit protection.

Package Compatibility: The substitute must use the TO-220AC through-hole package configuration to ensure mechanical fit and thermal interface compatibility with existing PCB layouts and heatsink assemblies.

Speed Classification: The substitute must meet or exceed the fast recovery classification (≤ 500 ns reverse recovery time with > 200 mA forward current) to maintain switching performance characteristics.

Current Rating: The substitute may exceed the 20 A average rectified current specification, as higher current capacity provides design margin without compromising circuit function.

Thermal Range: The substitute operating temperature range must encompass or exceed the -50°C to 150°C junction temperature specification of the primary part.

The STTH30R04D from STMicroelectronics meets all substitution criteria through equivalent voltage rating, identical package type, superior speed performance, and higher current capacity with extended thermal operating range.

Parameter Comparison

Engineering Selection Recommendations

Primary Part (FT2000AG): The FT2000AG remains the specified component for applications requiring the exact electrical and thermal characteristics defined in the original design. This part is active in production with adequate inventory availability (887 units in stock).

Substitute Part (STTH30R04D): The STTH30R04D is a direct substitute suitable for applications where the primary part is unavailable or where design requirements permit higher current capacity and improved switching speed. This part is ROHS3 compliant and REACH unaffected, providing enhanced regulatory compliance compared to the primary part. The substitute offers superior reverse recovery time performance (100 ns versus 200 ns) and extended junction temperature range (-40°C to 175°C versus -50°C to 150°C). The higher current rating (30 A versus 20 A) provides additional design margin for thermal and electrical stress management.

Both parts are classified as standard technology fast recovery rectifier diodes suitable for general-purpose rectification in power supply and switching applications.

Frequently Asked Questions (FAQ)

Q: Can the STTH30R04D replace the FT2000AG in all applications?

A: The STTH30R04D is electrically and mechanically compatible with the FT2000AG for applications operating within the specified voltage (400 V) and current (≤ 30 A) parameters. The substitute provides equivalent or superior performance across all critical parameters including reverse recovery time, thermal range, and current capacity. Verification of circuit-specific requirements is necessary only if the application has constraints not covered by the provided electrical specifications.

Q: What are the key differences between these two parts?

A: The primary differences are current rating (20 A versus 30 A), reverse recovery time (200 ns versus 100 ns), forward voltage drop (960 mV @ 20 A versus 1.45 V @ 30 A), reverse leakage current (5 µA versus 15 µA), and operating temperature range (-50°C to 150°C versus -40°C to 175°C). The STTH30R04D offers faster switching performance and higher current capacity with extended thermal operating range.

Q: Are both parts available in the same package?

A: Yes, both the FT2000AG and STTH30R04D use the TO-220-2 through-hole package configuration (TO-220AC supplier device package). This ensures identical mechanical fit, PCB footprint compatibility, and heatsink interface requirements.

Q: What is the impact of higher reverse leakage current in the STTH30R04D?

A: The STTH30R04D exhibits 15 µA reverse leakage at 400 V compared to 5 µA for the FT2000AG. This difference is within acceptable limits for general-purpose rectification applications and does not impact circuit functionality in standard power supply designs.

Q: Does the STTH30R04D have better regulatory compliance?

A: The STTH30R04D is ROHS3 compliant and REACH unaffected, providing enhanced regulatory documentation compared to the FT2000AG, which has vendor-undefined REACH status. For applications requiring strict compliance with environmental regulations, the STTH30R04D offers documented compliance status.

Q: How does the faster reverse recovery time of the STTH30R04D affect circuit performance?

A: The STTH30R04D reverse recovery time of 100 ns is superior to the FT2000AG specification of 200 ns. Faster reverse recovery reduces switching losses and electromagnetic interference in high-frequency switching applications, providing improved efficiency without requiring circuit modifications.