Equivalent & Substitute Parts for S2K-HF

Part Overview

The S2K-HF is a general-purpose rectifier diode manufactured by Comchip Technology, rated for 800 V DC reverse voltage and 2 A average rectified current in a surface mount DO-214AC (SMA) package. This component is classified as Active product status and complies with ROHS3 standards. Substitute parts are identified when equivalent electrical and mechanical parameters are required for design flexibility, supply chain alternatives, or inventory optimization while maintaining circuit performance specifications.

Substiute Parts

S2K-HF

Comchip TechnologyIn Stock: 844S2K-HF Datasheet

Current PartRFQ

SA2K-E3/5AT

Vishay General Semiconductor - Diodes DivisionIn Stock: 7269SA2K-E3/5AT Datasheet

Parametric EquivalentRFQ

SA2K-E3/61T

Vishay General Semiconductor - Diodes DivisionIn Stock: 28602SA2K-E3/61T Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the S2K-HF are qualified based on the following critical parameters that determine functional equivalence:

Electrical Parameters (Must Match):

• Voltage - DC Reverse (Vr) (Max): 800 V
• Current - Average Rectified (Io): 2 A
• Voltage - Forward (Vf) (Max) @ If: 1.1 V @ 2 A
• Speed Classification: Standard Recovery >500ns, > 200mA (Io)

Mechanical Parameters (Must Match):

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

Environmental & Compliance Parameters (Must Match):

• Operating Temperature - Junction: -55°C to 150°C
• RoHS Status: ROHS3 Compliant
• Moisture Sensitivity Level (MSL): 1 (Unlimited)

The substitute parts SA2K-E3/5AT and SA2K-E3/61T, both manufactured by Vishay General Semiconductor - Diodes Division, meet all critical electrical, mechanical, and compliance requirements. Both parts are classified as Active product status and maintain identical voltage, current, and temperature specifications as the S2K-HF.

Parameter Comparison

Engineering Selection Recommendations

Primary Substitute: SA2K-E3/61T

The SA2K-E3/61T is the preferred substitute for the S2K-HF. Both components share identical electrical specifications for voltage, current, and temperature range. The SA2K-E3/61T maintains Active product status and ROHS3 compliance. Inventory availability of 28,500 pieces provides supply chain stability. The part is manufactured by Vishay General Semiconductor - Diodes Division and is packaged in the same DO-214AC (SMA) surface mount configuration.

Secondary Substitute: SA2K-E3/5AT

The SA2K-E3/5AT is an equivalent alternative to the S2K-HF with identical electrical and mechanical specifications. This part is also manufactured by Vishay General Semiconductor - Diodes Division in the DO-214AC (SMA) package. Inventory availability of 7,200 pieces supports component sourcing. Both primary and secondary substitutes maintain ROHS3 compliance and MSL 1 (Unlimited) moisture sensitivity rating.

Substitution Basis:

All substitute parts are qualified based on matching the critical electrical parameters (800 V reverse voltage, 2 A average rectified current, 1.1 V forward voltage at 2 A), identical package configuration (DO-214AC, SMA), and equivalent operating temperature range (-55°C to 150°C). All parts maintain Active product status and ROHS3 compliance certification.

Frequently Asked Questions (FAQ)

Q: Can SA2K-E3/5AT and SA2K-E3/61T be used interchangeably with S2K-HF?

A: Yes. Both Vishay parts meet the electrical and mechanical specifications of the S2K-HF. All three components are rated for 800 V reverse voltage, 2 A average rectified current, and operate across the same temperature range (-55°C to 150°C). Both substitute parts are packaged in DO-214AC (SMA) surface mount configuration and comply with ROHS3 standards.

Q: What are the differences between the substitute parts?

A: SA2K-E3/5AT and SA2K-E3/61T share identical electrical specifications and package configuration. The primary difference is inventory availability: SA2K-E3/61T has 28,500 pieces in stock, while SA2K-E3/5AT has 7,200 pieces available. Both parts feature reverse recovery time of 1.5 µs and reverse leakage current of 3 µA @ 800 V.

Q: Are there any performance differences between S2K-HF and the substitute parts?

A: The substitute parts exhibit lower reverse leakage current (3 µA @ 800 V compared to 5 µA @ 800 V for the S2K-HF) and lower capacitance (11 pF @ 4V, 1MHz compared to 25 pF @ 4V, 1MHz). These differences represent improved performance characteristics while maintaining full electrical equivalence for the primary specifications.

Q: Do all parts meet the same compliance requirements?

A: Yes. The S2K-HF and both substitute parts (SA2K-E3/5AT and SA2K-E3/61T) are ROHS3 compliant with MSL 1 (Unlimited) moisture sensitivity rating. All parts carry Active product status and are suitable for equivalent circuit applications.

Q: Is the DO-214AC (SMA) package identical across all three parts?

A: Yes. The S2K-HF, SA2K-E3/5AT, and SA2K-E3/61T are all packaged in DO-214AC (SMA) surface mount configuration. The package dimensions and land pattern are identical, allowing direct substitution on printed circuit boards without layout modifications.

Q: What is the operating temperature range for these diodes?

A: All three parts operate across a junction temperature range of -55°C to 150°C, providing equivalent thermal performance specifications for industrial and commercial applications.