8EWF06S Equivalent & Substitute Parts

Part Overview

The 8EWF06S is a general-purpose rectifier diode manufactured by Vishay General Semiconductor - Diodes Division, rated for 600 V DC reverse voltage and 8 A average rectified current. The device is packaged in a Surface Mount TO-252AA (DPAK) configuration with fast recovery characteristics. The 8EWF06S is classified as obsolete, necessitating identification of equivalent and substitute components for new designs and ongoing production requirements. Equivalent parts maintain identical electrical and mechanical specifications, while substitute parts provide functional alternatives with potential differences in packaging, performance characteristics, or compliance status.

Substiute Parts

8EWF06S

Vishay General Semiconductor - Diodes DivisionIn Stock: 54928EWF06S Datasheet

Current PartRFQ

VS-8EWF06S-M3

Vishay General Semiconductor - Diodes DivisionIn Stock: 2342VS-8EWF06S-M3 Datasheet

Parametric EquivalentRFQ

STTH8L06D

STMicroelectronicsIn Stock: 1431STTH8L06D Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the 8EWF06S are identified based on matching the following critical electrical and mechanical parameters:

Electrical Matching Criteria:

• Voltage - DC Reverse (Vr) (Max): 600 V
• Current - Average Rectified (Io): 8 A
• Speed Classification: Fast Recovery ≤ 500ns, > 200mA (Io)

Mechanical Matching Criteria:

• Package compatibility or functional equivalence in alternative package types
• Mounting type (Surface Mount or Through Hole alternatives)

Compliance Considerations:

• RoHS status and regulatory compliance
• Product status (Active vs. Obsolete)

The 8EWF06S has two identified substitutes: VS-8EWF06S-M3 (parametric equivalent with identical package) and STTH8L06D (manufacturer-recommended alternative with different package type).

Parameter Comparison

Engineering Selection Recommendations

VS-8EWF06S-M3 (Parametric Equivalent):

The VS-8EWF06S-M3 is a direct parametric equivalent to the 8EWF06S, sharing identical electrical ratings (600 V, 8 A) and package configuration (TO-252AA DPAK). This part is manufactured by the same supplier (Vishay General Semiconductor - Diodes Division) and maintains the same base product number (8EWF06). The VS-8EWF06S-M3 offers improved reverse recovery time (55 ns versus 140 ns) and holds Active product status with ROHS3 compliance, making it the preferred choice for direct replacement in Surface Mount applications where the DPAK package is required.

STTH8L06D (Manufacturer-Recommended Alternative):

The STTH8L06D is an STMicroelectronics alternative that maintains the same voltage and current ratings (600 V, 8 A) and fast recovery speed classification. This part differs in mounting type (Through Hole TO-220AC package versus Surface Mount DPAK) and forward voltage (1.3 V @ 8 A versus 1.2 V @ 8 A). The STTH8L06D features superior reverse leakage characteristics (8 µA @ 600 V versus 100 µA @ 600 V) and an extended maximum junction temperature rating (175°C versus 150°C). Selection of this part requires PCB redesign to accommodate the Through Hole TO-220 package and is appropriate for applications where the larger package footprint and enhanced thermal performance are beneficial.

Frequently Asked Questions (FAQ)

Q: Can VS-8EWF06S-M3 be used as a direct replacement for 8EWF06S?

A: Yes. The VS-8EWF06S-M3 maintains identical electrical specifications (600 V, 8 A) and package configuration (TO-252AA DPAK). No PCB modifications are required. The improved reverse recovery time (55 ns) and ROHS3 compliance provide additional benefits for new designs.

Q: What are the key differences between VS-8EWF06S-M3 and STTH8L06D?

A: The primary differences are mounting type and package: VS-8EWF06S-M3 is Surface Mount (DPAK), while STTH8L06D is Through Hole (TO-220AC). Forward voltage differs (1.2 V versus 1.3 V @ 8 A), and reverse leakage is lower in STTH8L06D (8 µA versus 100 µA @ 600 V). STTH8L06D supports higher junction temperature (175°C maximum).

Q: Is the 8EWF06S still available for purchase?

A: The 8EWF06S is classified as Obsolete. However, 5400 pieces are reported in stock as New Original. For new designs and long-term production, VS-8EWF06S-M3 (Active status, 2312 pieces in stock) is the recommended alternative.

Q: Can STTH8L06D be used in a Surface Mount application?

A: No. STTH8L06D is a Through Hole device (TO-220AC package) and cannot be directly mounted on PCBs designed for Surface Mount components. PCB redesign is required to accommodate the Through Hole leads and larger footprint.

Q: Does forward voltage difference between 8EWF06S and STTH8L06D affect circuit performance?

A: The forward voltage difference (1.2 V versus 1.3 V @ 8 A) represents a 0.1 V increase. Circuit impact depends on application-specific voltage drop requirements and thermal dissipation calculations. Designs with tight voltage margin specifications should evaluate this parameter.

Q: Are all three parts RoHS compliant?

A: No. The 8EWF06S is RoHS non-compliant. Both VS-8EWF06S-M3 and STTH8L06D are ROHS3 compliant, meeting current regulatory requirements for new product designs and manufacturing.

Q: What is the significance of reverse recovery time differences?

A: Reverse recovery time (trr) affects switching speed and electromagnetic interference characteristics. VS-8EWF06S-M3 (55 ns) provides faster recovery than 8EWF06S (140 ns), reducing switching losses and EMI. STTH8L06D (105 ns) offers intermediate performance. Selection depends on circuit switching frequency and EMI requirements.