8ETH03-1 Equivalent & Substitute Parts

Part Overview

The 8ETH03-1 is a general-purpose rectifier diode manufactured by Vishay General Semiconductor - Diodes Division, part of the FRED Pt® series. This through-hole component is rated for 300 V DC reverse voltage and 8 A average rectified current, housed in a TO-262-3 package. The device features fast recovery characteristics with a reverse recovery time of 35 ns, making it suitable for standard rectification applications requiring moderate voltage and current ratings.

The 8ETH03-1 carries an obsolete product status. Identifying equivalent substitute parts is necessary to ensure design continuity, maintain supply chain reliability, and support ongoing production or repair requirements for systems utilizing this component.

Substiute Parts

8ETH03-1

Vishay General Semiconductor - Diodes DivisionIn Stock: 10938ETH03-1 Datasheet

Current PartRFQ

VS-8ETH03-1-M3

Vishay General Semiconductor - Diodes DivisionIn Stock: 1124VS-8ETH03-1-M3 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 8ETH03-1 is determined by electrical and mechanical parameter equivalence. The following criteria establish valid substitution:

Electrical Parameters (Must Match):

• Voltage - DC Reverse (Vr) (Max): 300 V
• Current - Average Rectified (Io): 8 A
• Voltage - Forward (Vf) (Max) @ If: 1.25 V @ 8 A
• Reverse Recovery Time (trr): 35 ns
• Current - Reverse Leakage @ Vr: 20 µA @ 300 V
• Speed Classification: Fast Recovery ≤ 500ns, > 200mA (Io)

Mechanical Parameters (Must Match):

• Mounting Type: Through Hole
• Package / Case: TO-262-3 Long Leads, I2PAK, TO-262AA
• Operating Temperature - Junction: -65°C to 175°C

Technology:

• Technology: Standard

The substitute part VS-8ETH03-1-M3 meets all electrical and mechanical requirements for direct substitution. Both parts share identical base product number 8ETH03 and belong to the FRED Pt® series.

Parameter Comparison

Engineering Selection Recommendations

Primary Substitute: VS-8ETH03-1-M3

The VS-8ETH03-1-M3 is the direct parametric equivalent to the 8ETH03-1. All electrical and mechanical specifications are identical. The substitute part carries an Active product status, ensuring ongoing availability and manufacturing support from Vishay General Semiconductor - Diodes Division.

Compliance Considerations:

The 8ETH03-1 is RoHS non-compliant and carries REACH Unaffected status. The substitute part VS-8ETH03-1-M3 is ROHS3 Compliant, providing improved environmental compliance for new designs or systems subject to RoHS regulations. Both parts maintain REACH Unaffected status and share identical ECCN (EAR99) and HTSUS (8541.10.0080) classifications.

Packaging Difference:

The 8ETH03-1 is supplied without specified packaging designation. The VS-8ETH03-1-M3 is supplied in Tube packaging. This difference does not affect electrical or mechanical compatibility; it reflects only the distribution format.

Inventory and Supply:

The 8ETH03-1 has 1060 pieces in stock as new original inventory. The VS-8ETH03-1-M3 has 1108 pieces in stock as new original inventory, with active product status supporting continued supply.

Frequently Asked Questions (FAQ)

Q: Can VS-8ETH03-1-M3 be used as a direct replacement for 8ETH03-1 in existing designs?

A: Yes. The VS-8ETH03-1-M3 meets all electrical and mechanical specifications of the 8ETH03-1. Both parts are rated for 300 V DC reverse voltage, 8 A average rectified current, feature 35 ns reverse recovery time, and are housed in compatible TO-262-3 through-hole packages. No circuit modifications are required.

Q: What is the difference between the two part numbers?

A: The primary difference is product status. The 8ETH03-1 is obsolete, while VS-8ETH03-1-M3 is active. Additionally, VS-8ETH03-1-M3 is ROHS3 Compliant, whereas 8ETH03-1 is RoHS non-compliant. Both parts share identical electrical performance and mechanical form factor.

Q: Are the TO-262-3 and TO-262AA package designations interchangeable?

A: Both designations refer to compatible through-hole packages within the TO-262 family. The 8ETH03-1 lists both TO-262-3 Long Leads and TO-262AA as acceptable package cases. The VS-8ETH03-1-M3 specifies TO-262AA as the supplier device package. These packages are mechanically and electrically compatible for PCB mounting and circuit operation.

Q: What is the significance of the FRED Pt® series designation?

A: FRED Pt® is Vishay's Fast Recovery Epitaxial Diode Platinum series. Both the 8ETH03-1 and VS-8ETH03-1-M3 belong to this series, confirming their fast recovery characteristics (35 ns reverse recovery time) and standard rectification technology. This series designation ensures consistent performance across both parts.

Q: Does the RoHS compliance difference affect electrical performance?

A: No. RoHS compliance is a regulatory and environmental classification that does not alter the electrical or thermal performance of the diode. The VS-8ETH03-1-M3 maintains identical voltage, current, and recovery time specifications as the 8ETH03-1. RoHS3 compliance makes the substitute part suitable for applications subject to environmental regulations.

Q: What is the operating temperature range for both parts?

A: Both the 8ETH03-1 and VS-8ETH03-1-M3 operate across a junction temperature range of -65°C to 175°C. This identical range ensures thermal compatibility in all operating environments.

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

A: Both parts are classified as fast recovery diodes with 35 ns reverse recovery time and are rated for speeds ≤ 500ns with currents > 200mA. They are suitable for standard rectification and moderate-frequency switching applications within their current and voltage ratings.