Equivalent & Substitute Parts for RS3AHE3_A/I

Part Overview

The RS3AHE3_A/I is a general-purpose rectifier diode manufactured by Vishay General Semiconductor - Diodes Division. This surface mount diode operates at 50 V DC reverse voltage with a 3 A average rectified current rating and is housed in a DO-214AB (SMC) package. The device is classified as a fast recovery diode with a reverse recovery time of 150 ns and is qualified to AEC-Q101 automotive standards. The part maintains active product status and is RoHS3 compliant with unlimited moisture sensitivity level (MSL 1).

Equivalent and substitute parts are identified to provide design flexibility, accommodate supply chain variations, and support component sourcing strategies while maintaining electrical and mechanical compatibility within specified parameters.

Substiute Parts

RS3AHE3_A/I

Vishay General Semiconductor - Diodes DivisionIn Stock: 1001RS3AHE3_A/I Datasheet

Current PartRFQ

ES3A

Taiwan Semiconductor CorporationIn Stock: 17208ES3A Datasheet

MFR RecommendedRFQ

ES3A-13-F

Diodes IncorporatedIn Stock: 10319ES3A-13-F Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the RS3AHE3_A/I are qualified based on the following critical parameters that determine functional and mechanical compatibility:

Electrical Parameters (Must Match):

• Voltage - DC Reverse (Vr) (Max): 50 V
• Current - Average Rectified (Io): 3 A
• Speed Classification: Fast Recovery ≤ 500ns, > 200mA (Io)
• Current - Reverse Leakage @ Vr: 10 µA @ 50 V
• Operating Temperature - Junction: -55°C to 150°C

Mechanical Parameters (Must Match):

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

Compliance Parameters (Must Match):

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

Substitute parts may exhibit variations in forward voltage (Vf) and reverse recovery time (trr) within acceptable ranges that do not compromise circuit performance. All substitute parts maintain identical voltage and current ratings, package configuration, and environmental compliance specifications.

Parameter Comparison

Engineering Selection Recommendations

All three diodes—RS3AHE3_A/I, ES3A, and ES3A-13-F—are qualified as direct substitutes based on matching electrical ratings, package configuration, and compliance certifications. Selection among these parts is determined by application-specific requirements and supply availability.

RS3AHE3_A/I (Vishay General Semiconductor - Diodes Division):

• Automotive-grade qualification (AEC-Q101)
• Reverse recovery time: 150 ns
• Forward voltage: 1.3 V @ 2.5 A
• Suitable for applications requiring automotive-level reliability and traceability

ES3A (Taiwan Semiconductor Corporation):

• Reverse recovery time: 35 ns (improved switching performance)
• Forward voltage: 950 mV @ 3 A (reduced conduction losses)
• High inventory availability (17,100 pcs)
• Suitable for applications prioritizing switching speed and thermal efficiency

ES3A-13-F (Diodes Incorporated):

• Reverse recovery time: 25 ns (fastest switching performance)
• Forward voltage: 900 mV @ 3 A (lowest conduction losses)
• Cut Tape (CT) & Digi-Reel® packaging option
• Suitable for applications requiring optimized switching characteristics and alternative packaging formats

All parts maintain identical voltage ratings (50 V), current ratings (3 A), package type (DO-214AB, SMC), temperature range (-55°C to 150°C), and compliance status (ROHS3, MSL 1). Selection does not require design modification or circuit re-qualification when substituting between these parts within the specified parameter ranges.

Frequently Asked Questions (FAQ)

Q: Can ES3A be directly substituted for RS3AHE3_A/I without circuit modification?

A: Yes. Both parts share identical voltage ratings (50 V), current ratings (3 A), package configuration (DO-214AB, SMC), operating temperature range (-55°C to 150°C), and compliance specifications (ROHS3, MSL 1). The ES3A exhibits improved reverse recovery time (35 ns versus 150 ns) and lower forward voltage (950 mV @ 3 A versus 1.3 V @ 2.5 A), which provide performance benefits without requiring circuit redesign.

Q: What is the difference between ES3A and ES3A-13-F?

A: Both parts are manufactured to the same electrical specifications with identical voltage and current ratings. The primary differences are manufacturer (Taiwan Semiconductor Corporation versus Diodes Incorporated), reverse recovery time (35 ns versus 25 ns), forward voltage (950 mV @ 3 A versus 900 mV @ 3 A), and packaging format (standard versus Cut Tape & Digi-Reel®). ES3A-13-F provides faster switching performance and lower conduction losses.

Q: Is the RS3AHE3_A/I required for automotive applications?

A: The RS3AHE3_A/I carries AEC-Q101 automotive qualification. If your application requires automotive-grade component certification and traceability, the RS3AHE3_A/I is the specified choice. However, ES3A and ES3A-13-F are functionally equivalent and may be acceptable depending on your specific automotive qualification requirements and design standards.

Q: How do the reverse recovery times affect circuit performance?

A: Reverse recovery time (trr) determines the switching speed of the diode. The RS3AHE3_A/I has a trr of 150 ns, while ES3A has 35 ns and ES3A-13-F has 25 ns. Faster recovery times reduce switching losses and electromagnetic interference in high-frequency applications. Selection depends on your circuit's switching frequency and thermal management requirements.

Q: Are all three parts available in the same packaging?

A: All three parts use the DO-214AB (SMC) surface mount package. However, ES3A-13-F is available in Cut Tape (CT) & Digi-Reel® packaging, while RS3AHE3_A/I is supplied in Tape & Reel (TR) format. Packaging format does not affect electrical performance or circuit compatibility.

Q: What is the significance of the forward voltage differences?

A: Forward voltage (Vf) determines the voltage drop across the diode during conduction. RS3AHE3_A/I specifies 1.3 V @ 2.5 A, ES3A specifies 950 mV @ 3 A, and ES3A-13-F specifies 900 mV @ 3 A. Lower forward voltage reduces power dissipation and heat generation. Selection depends on your thermal budget and efficiency requirements.

Q: Can these parts be used interchangeably in existing designs?

A: Yes, within the specified electrical and mechanical parameters. All three parts maintain the same voltage rating (50 V), current rating (3 A), package type (DO-214AB, SMC), and operating temperature range (-55°C to 150°C). Substitution does not require PCB layout changes or circuit re-qualification.

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

A: Moisture Sensitivity Level 1 (MSL 1) with unlimited rating indicates the component has minimal sensitivity to moisture absorption during storage and handling. No special moisture control measures or baking procedures are required before soldering, simplifying component logistics and manufacturing processes.