RS3K Equivalent & Substitute Parts

Part Overview

The RS3K is a general-purpose rectifier diode manufactured by Taiwan Semiconductor Corporation, rated for 800 V DC reverse voltage and 3 A average rectified current. This fast recovery diode is packaged in the DO-214AB (SMC) surface mount configuration and is classified as an active product with ROHS3 compliance. The RS3K serves applications requiring efficient power rectification in moderate voltage and current environments. Identifying equivalent substitute parts ensures design flexibility, supply chain continuity, and component availability across manufacturing cycles.

Substiute Parts

RS3K

Taiwan Semiconductor CorporationIn Stock: 2820RS3K Datasheet

Current PartRFQ

RS3K

Taiwan Semiconductor CorporationIn Stock: 2820RS3K Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the RS3K must satisfy the following electrical and mechanical criteria to ensure functional equivalence:

Electrical Parameters (Mandatory Match):

• Voltage - DC Reverse (Vr) (Max): 800 V minimum
• Current - Average Rectified (Io): 3 A minimum
• Reverse Recovery Time (trr): 500 ns maximum
• Current - Reverse Leakage @ Vr: 10 µA @ 800 V maximum
• Speed Classification: Fast Recovery ≤ 500ns, > 200mA (Io)

Mechanical Parameters (Mandatory Match):

• Package / Case: DO-214AB, SMC
• Mounting Type: Surface Mount

Compliance & Environmental Parameters:

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

Parts meeting all these criteria are classified as direct substitutes. Deviations in any mandatory parameter disqualify a part from substitution eligibility.

Parameter Comparison

Engineering Selection Recommendations

The RS3K is an active product with full ROHS3 compliance and unlimited moisture sensitivity rating (MSL 1), indicating robust environmental stability and regulatory alignment for industrial and commercial applications. The part is currently in stock with 2800 pieces available as new original inventory.

When selecting the RS3K or its direct equivalent, the following factors apply:

Product Status Consideration: Both the main part and substitute maintain active product status, ensuring continued manufacturer support and supply chain reliability.

Compliance Alignment: ROHS3 compliance and REACH unaffected status confirm suitability for regulated markets and applications with environmental restrictions.

Thermal Performance: The operating temperature range of -55°C to 150°C junction temperature supports deployment in standard industrial environments without thermal derating requirements for typical applications.

Packaging & Handling: MSL 1 (Unlimited) classification eliminates moisture-related storage and handling constraints, reducing logistics complexity and enabling extended shelf life without specialized desiccant packaging.

Selection of equivalent parts should be based strictly on the electrical and mechanical parameters listed above. No additional performance criteria beyond those provided should influence substitution decisions.

Frequently Asked Questions (FAQ)

Q: What defines a direct substitute for the RS3K?

A: A direct substitute must match all electrical parameters (800 V reverse voltage, 3 A average rectified current, 500 ns reverse recovery time, 10 µA reverse leakage), maintain the DO-214AB SMC surface mount package, and comply with ROHS3 and MSL 1 specifications. Any deviation in these parameters disqualifies a part from direct substitution.

Q: Can the RS3K be replaced with a diode rated for higher voltage or current?

A: Parts with higher voltage or current ratings are electrically compatible but represent over-specification. Selection should match the application requirements exactly. Parts with lower ratings are not substitutes.

Q: What is the significance of the 500 ns reverse recovery time specification?

A: The 500 ns reverse recovery time classifies the RS3K as a fast recovery diode, suitable for switching applications and high-frequency rectification. Substitutes must maintain this speed classification to preserve circuit performance and efficiency characteristics.

Q: Does the DO-214AB package limit substitution options?

A: Yes. The DO-214AB (SMC) surface mount package is a mandatory mechanical requirement. Substitutes must use identical packaging to ensure PCB footprint compatibility and automated assembly compatibility. Different package types are not interchangeable.

Q: What is the importance of ROHS3 compliance for this diode?

A: ROHS3 compliance confirms the absence of restricted substances (lead, cadmium, mercury, hexavalent chromium, PBBs, PBDEs) and is mandatory for products sold into regulated markets including the European Union. All substitutes must maintain ROHS3 compliance.

Q: How does MSL 1 (Unlimited) affect component handling and storage?

A: MSL 1 classification indicates unlimited shelf life without moisture sensitivity concerns. The component does not require specialized desiccant packaging, dry storage cabinets, or bake-out procedures before soldering, simplifying logistics and reducing handling costs.

Q: Are there any temperature derating considerations for the RS3K?

A: The -55°C to 150°C junction temperature range supports standard industrial applications without derating. Applications operating within this range require no thermal management adjustments beyond standard PCB thermal design practices.

Q: What compliance certifications should be verified when selecting a substitute?

A: Verify ROHS3 compliance, REACH unaffected status, and active product status. The RS3K carries ECCN EAR99 classification and HTSUS code 8541.10.0080 for export and tariff purposes. Substitutes should maintain identical compliance documentation.