FR1D-LTP Equivalent & Substitute Parts

Part Overview

The FR1D-LTP is a general-purpose rectifier diode manufactured by Micro Commercial Co, rated for 200 V DC reverse voltage and 1 A average rectified current in a surface mount DO-214AA (SMB) package. This component is classified as Active product status and is RoHS3 compliant. Substitute parts are identified when equivalent electrical performance and mechanical compatibility are required due to component availability, supply chain considerations, or design flexibility within specified parameter ranges.

Substiute Parts

FR1D-LTP

Micro Commercial CoIn Stock: 793FR1D-LTP Datasheet

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ESH2D-E3/5BT

Vishay General Semiconductor - Diodes DivisionIn Stock: 10400ESH2D-E3/5BT Datasheet

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S1DBH

Taiwan Semiconductor CorporationIn Stock: 6921S1DBH Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the FR1D-LTP are qualified based on the following criteria:

Electrical Parameter Compatibility:

• Voltage - DC Reverse (Vr) rating must equal or exceed 200 V
• Package / Case must be DO-214AA (SMB) for mechanical and thermal compatibility
• RoHS3 compliance required for regulatory alignment
• Moisture Sensitivity Level (MSL) of 1 (Unlimited) for handling consistency

Current Rating Consideration:

• Substitute parts with equal or higher average rectified current (Io) rating are acceptable, as they provide equivalent or superior current-handling capability within the same thermal package

Speed and Recovery Characteristics:

• Fast Recovery classification (≤ 500ns, > 200mA) is the primary speed criterion for the FR1D-LTP
• Standard Recovery diodes may be substituted only when application requirements do not mandate fast recovery performance

Operating Temperature Range:

• Substitute parts must support the minimum junction temperature of -50°C; extended upper temperature ratings are acceptable

Parameter Comparison

Engineering Selection Recommendations

ESH2D-E3/5BT (Vishay General Semiconductor - Diodes Division): This substitute provides superior electrical performance with a 2 A current rating and significantly faster reverse recovery time (35 ns versus 150 ns). The extended operating temperature range (-55°C ~ 175°C) accommodates broader thermal environments. Fast Recovery classification maintains switching speed characteristics. RoHS3 compliance and MSL 1 rating ensure regulatory and handling compatibility. This part is suitable for applications requiring enhanced current capacity or improved switching performance within the same package footprint.

S1DBH (Taiwan Semiconductor Corporation): This substitute matches the 1 A current rating and maintains identical reverse leakage characteristics (5 µA @ 200 V). The part includes AEC-Q101 automotive qualification, making it suitable for automotive applications. However, the Standard Recovery classification (>500ns) differs from the FR1D-LTP's Fast Recovery specification. This part is appropriate for non-time-critical switching applications or automotive-grade designs where the slower recovery time is acceptable. RoHS3 compliance and MSL 1 rating provide full regulatory alignment.

Frequently Asked Questions (FAQ)

Q: Can ESH2D-E3/5BT replace FR1D-LTP in all applications? A: ESH2D-E3/5BT is electrically compatible as a direct substitute. The higher 2 A current rating and faster 35 ns recovery time provide equal or superior performance. The identical DO-214AA package ensures mechanical compatibility. Verify that the application does not have current or thermal constraints that would be negatively affected by the higher-rated component.

Q: What is the key difference between S1DBH and FR1D-LTP? A: S1DBH uses Standard Recovery classification (>500ns) compared to FR1D-LTP's Fast Recovery (≤500ns). This affects switching speed in high-frequency applications. S1DBH includes AEC-Q101 automotive qualification, making it suitable for automotive designs. Both maintain identical 200 V voltage rating, 1 A current rating, and DO-214AA package compatibility.

Q: Are all three parts interchangeable in the same circuit board layout? A: Yes. All three parts use the DO-214AA (SMB) package with identical mechanical dimensions and pin configuration. No PCB layout modifications are required for substitution.

Q: Which substitute should be selected for automotive applications? A: S1DBH includes AEC-Q101 qualification, making it the appropriate choice for automotive-grade designs. ESH2D-E3/5BT does not specify automotive qualification and should be evaluated against specific automotive requirements if needed.

Q: Does reverse recovery time affect component selection? A: Reverse recovery time (trr) is critical in switching applications. FR1D-LTP specifies 150 ns (Fast Recovery). ESH2D-E3/5BT provides 35 ns (superior performance). S1DBH does not specify trr but is classified as Standard Recovery. Select based on application switching frequency and performance requirements.

Q: Are all parts RoHS3 compliant? A: Yes. FR1D-LTP, ESH2D-E3/5BT, and S1DBH are all RoHS3 compliant with MSL 1 (Unlimited) moisture sensitivity rating, ensuring regulatory compliance and consistent handling requirements.