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8EWF10S Equivalent & Substitute Parts
Part Overview
The 8EWF10S is a general-purpose rectifier diode manufactured by Vishay General Semiconductor - Diodes Division, rated for 1000 V DC reverse voltage and 8 A average rectified current. This component is packaged in a Surface Mount TO-252AA (DPAK) configuration and features fast recovery characteristics with a reverse recovery time of 270 ns.
The 8EWF10S is classified as an obsolete product. Locating equivalent substitute parts is necessary to support ongoing maintenance, repair, and production requirements for legacy systems and equipment utilizing this diode. The availability of active-status alternatives ensures continuity of supply and compliance with current regulatory standards.
Substiute Parts
Key Parameters
| Parameter | Value | Unit |
|---|---|---|
| Voltage - DC Reverse (Vr) (Max) | 1000 | V |
| Current - Average Rectified (Io) | 8 | A |
| Voltage - Forward (Vf) (Max) @ If | 1.3 @ 8 | V @ A |
| Reverse Recovery Time (trr) | 270 | ns |
| Current - Reverse Leakage @ Vr | 100 @ 1000 | µA @ V |
| Mounting Type | Surface Mount | — |
| Package / Case | TO-252-3, DPAK (2 Leads + Tab), SC-63 | — |
| Operating Temperature - Junction | -40 to 150 | °C |
| Technology | Standard | — |
| Speed Classification | Fast Recovery ≤ 500 ns, > 200 mA (Io) | — |
Substitute Part Grouping Explanation
Substitution of the 8EWF10S is determined by strict equivalence across the following critical electrical and mechanical parameters:
Electrical Parameters:
- Voltage - DC Reverse (Vr) (Max): 1000 V
- Current - Average Rectified (Io): 8 A
- Voltage - Forward (Vf) (Max) @ If: 1.3 V @ 8 A
- Reverse Recovery Time (trr): 270 ns
- Current - Reverse Leakage @ Vr: 100 µA @ 1000 V
- Technology: Standard
- Speed Classification: Fast Recovery ≤ 500 ns, > 200 mA (Io)
Mechanical Parameters:
- Mounting Type: Surface Mount
- Package / Case: TO-252-3, DPAK (2 Leads + Tab), SC-63
- Supplier Device Package: TO-252AA (DPAK)
- Operating Temperature - Junction: -40°C to 150°C
The substitute part VS-8EWF10S-M3 meets all specified electrical and mechanical parameters, enabling direct functional replacement in circuit applications.
Parameter Comparison
| Parameter | 8EWF10S | VS-8EWF10S-M3 | Match |
|---|---|---|---|
| Voltage - DC Reverse (Vr) (Max) | 1000 V | 1000 V | ✓ |
| Current - Average Rectified (Io) | 8 A | 8 A | ✓ |
| Voltage - Forward (Vf) (Max) @ If | 1.3 V @ 8 A | 1.3 V @ 8 A | ✓ |
| Reverse Recovery Time (trr) | 270 ns | 270 ns | ✓ |
| Current - Reverse Leakage @ Vr | 100 µA @ 1000 V | 100 µA @ 1000 V | ✓ |
| Mounting Type | Surface Mount | Surface Mount | ✓ |
| Package / Case | TO-252-3, DPAK (2 Leads + Tab), SC-63 | TO-252-3, DPAK (2 Leads + Tab), SC-63 | ✓ |
| Operating Temperature - Junction | -40°C to 150°C | -40°C to 150°C | ✓ |
| Technology | Standard | Standard | ✓ |
| Speed Classification | Fast Recovery ≤ 500 ns, > 200 mA (Io) | Fast Recovery ≤ 500 ns, > 200 mA (Io) | ✓ |
| Product Status | Obsolete | Active | — |
| RoHS Status | RoHS non-compliant | ROHS3 Compliant | — |
| Packaging | — | Tube | — |
Engineering Selection Recommendations
The VS-8EWF10S-M3 is the direct parametric equivalent to the obsolete 8EWF10S. All critical electrical and mechanical specifications are identical, ensuring functional compatibility in existing circuit designs.
Product Status Consideration: The 8EWF10S is classified as obsolete, while VS-8EWF10S-M3 maintains active product status. Selection of the active-status substitute ensures ongoing availability and support from the manufacturer.
Regulatory Compliance: The VS-8EWF10S-M3 is ROHS3 compliant, whereas the 8EWF10S is RoHS non-compliant. For applications subject to RoHS regulations or requiring compliance with current environmental standards, the VS-8EWF10S-M3 is the appropriate selection.
Packaging and Supply: The VS-8EWF10S-M3 is supplied in Tube packaging with significantly higher inventory availability (30,120 pcs) compared to the 8EWF10S (2,050 pcs). This difference supports reliable procurement for production and maintenance operations.
Frequently Asked Questions (FAQ)
Q: Can VS-8EWF10S-M3 be used as a direct replacement for 8EWF10S in existing designs?
A: Yes. The VS-8EWF10S-M3 is a parametric equivalent with identical electrical ratings (1000 V, 8 A, 1.3 V forward voltage, 270 ns recovery time) and mechanical specifications (TO-252AA DPAK package). No circuit modifications are required.
Q: What are the key differences between 8EWF10S and VS-8EWF10S-M3?
A: The primary differences are product status (obsolete vs. active), RoHS compliance (non-compliant vs. ROHS3 compliant), and packaging format (unspecified vs. Tube). All electrical and mechanical parameters are identical.
Q: Are there any compatibility concerns with the TO-252AA DPAK package?
A: No. Both parts use the identical TO-252-3 DPAK (2 Leads + Tab), SC-63 package configuration. PCB footprints, lead spacing, and thermal characteristics are fully compatible.
Q: Why should I select VS-8EWF10S-M3 over 8EWF10S?
A: The 8EWF10S is obsolete with limited remaining inventory. The VS-8EWF10S-M3 is an active product with superior availability, ROHS3 compliance for regulatory adherence, and identical performance specifications.
Q: What is the operating temperature range for both parts?
A: Both the 8EWF10S and VS-8EWF10S-M3 operate across a junction temperature range of -40°C to 150°C, ensuring compatibility in equivalent thermal environments.
Q: Are the reverse recovery characteristics identical?
A: Yes. Both parts feature a reverse recovery time (trr) of 270 ns and are classified as fast recovery diodes with recovery time ≤ 500 ns at currents > 200 mA. Switching performance is equivalent.
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