HS3K Equivalent & Substitute Parts

Part Overview

The HS3K is a general-purpose rectifier diode manufactured by Taiwan Semiconductor Corporation, rated for 800 V DC reverse voltage and 3 A average rectified current in a surface mount DO-214AB (SMC) package. This component is classified as a fast recovery diode with a reverse recovery time of 75 ns, suitable for applications requiring efficient switching performance at moderate voltage and current levels. The part maintains Active product status with full RoHS3 compliance and unlimited moisture sensitivity rating (MSL 1).

Equivalent and substitute parts are identified to support procurement flexibility, inventory management, and supply chain continuity when the primary part becomes unavailable or when design requirements permit functional alternatives within specified electrical and mechanical parameters.

Substiute Parts

HS3K

Taiwan Semiconductor CorporationIn Stock: 12482HS3K Datasheet

Current PartRFQ

RS3K-E3/9AT

Vishay General Semiconductor - Diodes DivisionIn Stock: 10900RS3K-E3/9AT Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the HS3K are identified based on strict electrical and mechanical parameter matching within the fast recovery rectifier diode category. The substitution criteria are:

Primary Matching Parameters:

• Voltage - DC Reverse (Vr) (Max): 800 V
• Current - Average Rectified (Io): 3 A
• Package / Case: DO-214AB, SMC
• Mounting Type: Surface Mount
• Speed Classification: Fast Recovery ≤ 500ns, > 200mA (Io)
• Operating Temperature Range: -55°C to 150°C (minimum)

Secondary Compliance Parameters:

• RoHS3 Compliance
• Moisture Sensitivity Level (MSL): 1 (Unlimited)
• Product Status: Active

The RS3K-E3/9AT manufactured by Vishay General Semiconductor - Diodes Division meets all primary electrical and mechanical parameters. Both parts are rated for identical voltage and current specifications, share the same DO-214AB package footprint, and operate across the same temperature range. Both maintain Active product status with full RoHS3 compliance and MSL 1 rating.

Parameter Comparison

Engineering Selection Recommendations

Both the HS3K and RS3K-E3/9AT are qualified for direct substitution in applications requiring 800 V, 3 A fast recovery rectifier diodes in DO-214AB surface mount packages. Selection between these parts is based on the following engineering considerations:

HS3K Selection Criteria:

• Applications requiring minimum reverse recovery time (75 ns) for optimal switching efficiency
• Designs where lower junction capacitance is not a limiting factor
• Supply chain preference for Taiwan Semiconductor Corporation components

RS3K-E3/9AT Selection Criteria:

• Applications where lower junction capacitance (34 pF) provides circuit performance benefits
• Designs tolerant of longer reverse recovery time (500 ns) within the fast recovery classification
• Supply chain preference for Vishay General Semiconductor components
• Availability and inventory considerations

Both parts maintain identical compliance certifications (RoHS3, MSL 1, REACH Unaffected, EAR99 ECCN classification) and operate across the full -55°C to 150°C junction temperature range. Thermal and electrical performance characteristics remain within specification for both parts across this operating range.

Frequently Asked Questions (FAQ)

Q: Can RS3K-E3/9AT be used as a direct replacement for HS3K in all applications?

A: RS3K-E3/9AT meets all primary electrical specifications (800 V, 3 A) and package requirements (DO-214AB, SMC). Both parts are classified as fast recovery diodes and operate across identical temperature ranges. The primary difference is reverse recovery time: HS3K at 75 ns versus RS3K-E3/9AT at 500 ns. Applications sensitive to switching speed or EMI performance should evaluate this parameter against circuit requirements.

Q: What is the significance of the reverse recovery time difference?

A: Reverse recovery time (trr) determines how quickly the diode transitions from conducting to blocking state. The HS3K's 75 ns recovery time is faster than the RS3K-E3/9AT's 500 ns. Both remain within the fast recovery classification (≤ 500ns for currents > 200mA). Applications with high switching frequencies or stringent EMI requirements may benefit from the HS3K's faster recovery characteristic.

Q: Are the packaging and mounting specifications identical?

A: Both parts use the DO-214AB (SMC) surface mount package with identical footprints and land patterns. Both are classified as surface mount components suitable for automated assembly processes. Packaging format differs (HS3K supplied in Tape & Reel; RS3K-E3/9AT available in Cut Tape & Digi-Reel), but component dimensions and electrical connections are identical.

Q: Do both parts meet the same compliance and regulatory requirements?

A: Both HS3K and RS3K-E3/9AT are RoHS3 compliant, REACH unaffected, and classified under ECCN EAR99. Both carry MSL 1 (Unlimited) moisture sensitivity rating. Both maintain Active product status. Compliance certifications are equivalent for both parts.

Q: What is the difference in junction capacitance between these parts?

A: HS3K exhibits 50 pF junction capacitance at 4V, 1MHz, while RS3K-E3/9AT exhibits 34 pF under identical measurement conditions. Lower capacitance in the RS3K-E3/9AT may reduce switching losses and improve high-frequency performance in certain circuit topologies. Applications operating at lower frequencies are typically unaffected by this parameter difference.

Q: Can these parts be intermixed in production inventory?

A: Both parts are functionally equivalent within the specified electrical and mechanical parameters. However, inventory management practices should maintain separate tracking due to different manufacturers and part numbers. This ensures traceability, warranty compliance, and supply chain documentation accuracy.