8EWS08STR Equivalent & Substitute Parts

Part Overview

The 8EWS08STR is a general-purpose rectifier diode manufactured by Vishay General Semiconductor - Diodes Division, rated for 800 V DC reverse voltage and 8 A average rectified current in a Surface Mount TO-252AA (DPAK) package. This part is classified as obsolete, which necessitates identification of active equivalent alternatives for ongoing design and procurement requirements. Substitute parts must maintain identical electrical performance and mechanical compatibility to ensure direct replacement capability in existing circuit designs.

Substiute Parts

8EWS08STR

Vishay General Semiconductor - Diodes DivisionIn Stock: 22688EWS08STR Datasheet

Current PartRFQ

VS-8EWS08STR-M3

Vishay General Semiconductor - Diodes DivisionIn Stock: 15416VS-8EWS08STR-M3 Datasheet

Parametric EquivalentRFQ

VS-8EWS08STRR-M3

Vishay General Semiconductor - Diodes DivisionIn Stock: 769VS-8EWS08STRR-M3 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the 8EWS08STR are qualified based on strict equivalence across all critical electrical and mechanical parameters. The substitution logic requires that alternative parts maintain:

• Identical DC reverse voltage rating: 800 V
• Identical average rectified current: 8 A
• Identical forward voltage drop: 1.1 V @ 8 A
• Identical reverse leakage current: 50 µA @ 800 V
• Identical recovery speed classification: Standard Recovery >500ns, > 200mA (Io)
• Identical package and pinout: TO-252-3, DPAK (2 Leads + Tab), SC-63
• Identical mounting technology: Surface Mount
• Identical operating temperature range: -55°C ~ 150°C

The identified substitute parts VS-8EWS08STR-M3 and VS-8EWS08STRR-M3 satisfy all these requirements and are classified as active products with current manufacturing status and RoHS3 compliance.

Parameter Comparison

Engineering Selection Recommendations

Both VS-8EWS08STR-M3 and VS-8EWS08STRR-M3 are direct electrical and mechanical equivalents to the obsolete 8EWS08STR. Selection between these two active alternatives is determined by procurement and compliance requirements:

VS-8EWS08STR-M3 is the primary substitute, offering higher inventory availability (15,400 pieces) and active product status with ROHS3 compliance certification. This part is suitable for new designs and production runs requiring RoHS3 compliance and standard packaging in Tape & Reel format.

VS-8EWS08STRR-M3 is an alternative substitute with identical electrical specifications and ROHS3 compliance. This part carries lower inventory levels (700 pieces) and is suitable for applications where specific packaging or supplier requirements necessitate this variant.

Both substitute parts are manufactured by the same supplier as the original part, ensuring consistency in manufacturing processes and quality standards. The transition from bulk packaging to Tape & Reel format reflects current industry standard practices for surface mount components.

Frequently Asked Questions (FAQ)

Q: Can VS-8EWS08STR-M3 or VS-8EWS08STRR-M3 be used as direct replacements for 8EWS08STR in existing designs?

A: Yes. Both substitute parts maintain identical electrical parameters (800 V reverse voltage, 8 A current rating, 1.1 V forward voltage drop, 50 µA reverse leakage) and identical mechanical specifications (TO-252-3 DPAK package, Surface Mount technology, -55°C to 150°C operating range). Direct substitution is supported without circuit modification.

Q: What is the difference between VS-8EWS08STR-M3 and VS-8EWS08STRR-M3?

A: Both parts are electrically and mechanically identical. The primary differences are inventory availability and potential supplier-specific packaging variations. VS-8EWS08STR-M3 has higher stock levels (15,400 pieces versus 700 pieces). Both are active products with ROHS3 compliance.

Q: Why is the original 8EWS08STR classified as obsolete?

A: The 8EWS08STR is no longer in active production. The substitute parts VS-8EWS08STR-M3 and VS-8EWS08STRR-M3 represent the current active product line from Vishay for this electrical specification and package type.

Q: Are there any compliance differences between the original part and the substitutes?

A: Yes. The original 8EWS08STR is RoHS non-compliant, while both substitute parts (VS-8EWS08STR-M3 and VS-8EWS08STRR-M3) are ROHS3 compliant. Both parts maintain REACH Unaffected status and identical ECCN and HTSUS classifications.

Q: What packaging format do the substitute parts use?

A: Both VS-8EWS08STR-M3 and VS-8EWS08STRR-M3 are supplied in Tape & Reel (TR) format, which is the standard packaging for surface mount components in production environments. The original 8EWS08STR was supplied in bulk packaging.

Q: Are the substitute parts suitable for high-temperature applications?

A: Yes. Both substitute parts maintain the identical operating temperature range of -55°C to 150°C junction temperature, supporting the same thermal performance envelope as the original part.