S2D-HF General Purpose Rectifier Diode Equivalent & Substitute Parts

Part Overview

The S2D-HF is a general purpose rectifier diode manufactured by Comchip Technology, rated for 200V DC reverse voltage and 2A average rectified current in a surface mount DO-214AC (SMA) package. This component is classified as Active product status and is RoHS3 compliant. Equivalent and substitute parts are identified based on matching electrical specifications and mechanical compatibility to ensure direct functional replacement in circuit applications.

Substiute Parts

S2D-HF

Comchip TechnologyIn Stock: 840S2D-HF Datasheet

Current PartRFQ

SA2D-E3/5AT

Vishay General Semiconductor - Diodes DivisionIn Stock: 2398SA2D-E3/5AT Datasheet

Parametric EquivalentRFQ

SA2D-E3/61T

Vishay General Semiconductor - Diodes DivisionIn Stock: 30401SA2D-E3/61T Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the S2D-HF are qualified based on the following critical parameters that determine functional equivalence:

Electrical Parameters:

• Voltage - DC Reverse (Vr) (Max): 200 V
• Current - Average Rectified (Io): 2 A
• Voltage - Forward (Vf) (Max) @ If: 1.1 V @ 2 A
• Speed: Standard Recovery >500ns, > 200mA (Io)
• Operating Temperature - Junction: -55°C ~ 150°C

Mechanical Parameters:

• Package / Case: DO-214AC, SMA
• Mounting Type: Surface Mount

Compliance Parameters:

• RoHS Status: ROHS3 Compliant
• Moisture Sensitivity Level (MSL): 1 (Unlimited)

All substitute parts listed maintain identical or superior performance within these specified parameters and are suitable for direct replacement in applications requiring a 200V, 2A general purpose rectifier diode in DO-214AC surface mount packaging.

Parameter Comparison

Engineering Selection Recommendations

Primary Substitute: SA2D-E3/61T

The SA2D-E3/61T from Vishay General Semiconductor - Diodes Division is the preferred substitute for the S2D-HF. This part maintains all critical electrical specifications including 200V reverse voltage rating, 2A average rectified current, and 1.1V forward voltage drop at 2A. The component is housed in the identical DO-214AC (SMA) surface mount package and operates across the same temperature range (-55°C to 150°C). Both parts are RoHS3 compliant with MSL 1 rating. The SA2D-E3/61T demonstrates superior reverse leakage characteristics (3 µA versus 5 µA) and lower junction capacitance (11 pF versus 25 pF), providing enhanced performance margins. Inventory availability of 30,300 pieces supports production requirements.

Secondary Substitute: SA2D-E3/5AT

The SA2D-E3/5AT from Vishay General Semiconductor - Diodes Division is an alternative substitute meeting identical electrical and mechanical specifications as the S2D-HF. This part shares the same voltage, current, and temperature ratings with equivalent package compatibility. The SA2D-E3/5AT also exhibits improved reverse leakage (3 µA) and reduced capacitance (11 pF) compared to the original part. Inventory availability of 2,340 pieces is available.

Both substitute parts are Active status components with full RoHS3 compliance and unlimited moisture sensitivity rating, ensuring regulatory and environmental compatibility with the original S2D-HF specification.

Frequently Asked Questions (FAQ)

Q: What makes SA2D-E3/61T and SA2D-E3/5AT suitable substitutes for S2D-HF?

A: Both Vishay parts match the critical electrical parameters of the S2D-HF: 200V reverse voltage, 2A average rectified current, 1.1V forward voltage at 2A, and standard recovery speed characteristics. Both are packaged in DO-214AC (SMA) surface mount format and operate across the identical -55°C to 150°C temperature range. All three parts are RoHS3 compliant with MSL 1 rating.

Q: Are there differences in performance between the S2D-HF and its substitutes?

A: The substitute parts demonstrate lower reverse leakage current (3 µA versus 5 µA at 200V) and reduced junction capacitance (11 pF versus 25 pF at 4V, 1MHz). These characteristics represent performance improvements while maintaining full compatibility with the original specification.

Q: Can SA2D-E3/61T and SA2D-E3/5AT be used interchangeably?

A: Yes. Both Vishay parts are parametrically equivalent and share identical electrical ratings, package format, and temperature operating range. Selection between them may be based on inventory availability or supply chain considerations.

Q: What is the significance of the DO-214AC (SMA) package designation?

A: DO-214AC, also designated as SMA, is a surface mount diode package with standardized dimensions and pad layout. All three parts use this identical package, ensuring mechanical and electrical compatibility on printed circuit boards without requiring layout modifications.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. The S2D-HF and both substitute parts (SA2D-E3/61T and SA2D-E3/5AT) are RoHS3 compliant with MSL 1 (Unlimited) moisture sensitivity rating, meeting current environmental and regulatory requirements.

Q: What does MSL 1 (Unlimited) mean for component handling?

A: MSL 1 indicates the component has unlimited shelf life and does not require special moisture control during storage or handling. This classification applies to all three parts in this equivalence group.

Q: Can these diodes be used in high-temperature applications?

A: Yes. All three parts are rated for junction temperatures up to 150°C, supporting applications requiring elevated operating temperatures within this specified range.