DF08S-HF Bridge Rectifier Equivalent & Substitute Parts

Part Overview

The DF08S-HF is a single-phase bridge rectifier manufactured by Comchip Technology, rated for 800 V peak reverse voltage and 1 A average rectified current. This component is classified as Active product status and is currently in stock with 646 pieces available. The DF08S-HF is designed for surface mount applications in 4-SMD Gull Wing package configuration.

Substitute parts are necessary when the primary part becomes unavailable, when alternative manufacturers are required for supply chain diversification, or when design requirements permit selection from qualified equivalent components that meet identical electrical and mechanical specifications.

Substiute Parts

DF08S-HF

Comchip TechnologyIn Stock: 670DF08S-HF Datasheet

Current PartRFQ

DB106S-G

Comchip TechnologyIn Stock: 1242DB106S-G Datasheet

Parametric EquivalentRFQ

DF08S-E3/45

Vishay General Semiconductor - Diodes DivisionIn Stock: 5799DF08S-E3/45 Datasheet

Parametric EquivalentRFQ

DI108S_T0_00001

Panjit International Inc.In Stock: 1035DI108S_T0_00001 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the DF08S-HF are qualified based on the following electrical and mechanical parameters:

Critical Matching Parameters:

• Voltage - Peak Reverse (Max): 800 V
• Current - Average Rectified (Io): 1 A
• Diode Type: Single Phase
• Technology: Standard
• Operating Temperature Range: -55°C to 150°C (TJ)
• Mounting Type: Surface Mount
• Package / Case: 4-SMD, Gull Wing

All substitute parts listed meet these core electrical specifications. Variations in reverse leakage current (5 µA versus 10 µA) and forward voltage characteristics remain within acceptable tolerance ranges for single-phase bridge rectifier applications. Packaging format (Tube versus standard) and supplier device package designations (DFS, DBS, 4-SDIP) do not affect electrical equivalency.

Parameter Comparison

Engineering Selection Recommendations

DF08S-E3/45 (Vishay General Semiconductor - Diodes Division)

This part is recommended as the primary substitute for the DF08S-HF. The DF08S-E3/45 maintains full electrical equivalency across all critical parameters and carries Active product status. This component is ROHS3 Compliant and REACH Unaffected, meeting current regulatory requirements. Inventory availability is highest among all substitutes at 5750 pieces. The reverse leakage current specification of 5 µA at 800 V is superior to the DF08S-HF specification of 10 µA, indicating improved performance characteristics.

DI108S_T0_00001 (Panjit International Inc.)

This part qualifies as an equivalent substitute with Active product status and full ROHS3 compliance. The DI108S_T0_00001 meets all electrical specifications and provides supply chain diversification through an alternative manufacturer. Reverse leakage current specification of 5 µA at 800 V matches the Vishay component. Inventory of 985 pieces supports availability requirements.

DB106S-G (Comchip Technology)

This part is electrically equivalent to the DF08S-HF but carries Obsolete product status. While 1132 pieces are currently in inventory, the obsolete classification indicates this component is no longer in active production. Selection of this part should be limited to applications where existing stock must be consumed or where long-term supply is not required.

Frequently Asked Questions (FAQ)

Q: Can the DF08S-E3/45 be used as a direct replacement for the DF08S-HF?

A: Yes. The DF08S-E3/45 meets all electrical and mechanical specifications required for the DF08S-HF. Both components are rated for 800 V peak reverse voltage, 1 A average rectified current, and operate across the identical temperature range of -55°C to 150°C. The 4-SMD Gull Wing package configuration is identical, enabling direct board-level substitution.

Q: What is the difference between the reverse leakage current specifications?

A: The DF08S-HF specifies 10 µA maximum reverse leakage at 800 V, while the DF08S-E3/45 and DI108S_T0_00001 specify 5 µA maximum at the same voltage. Both specifications are acceptable for single-phase bridge rectifier applications. The lower leakage current in the Vishay and Panjit components represents improved performance characteristics.

Q: Why is the DB106S-G listed as Obsolete?

A: The DB106S-G carries Obsolete product status, indicating that Comchip Technology has discontinued active production of this component. While inventory is currently available, future availability cannot be assured. For new designs or long-term production requirements, selection of Active status components (DF08S-E3/45 or DI108S_T0_00001) is appropriate.

Q: Are there compliance differences between the substitute parts?

A: All substitute parts carry ROHS3 Compliant and REACH Unaffected certifications. The DF08S-HF does not specify these compliance statuses in the provided data. The substitute parts meet current regulatory requirements for electronic component manufacturing and distribution.

Q: Does packaging format affect substitution eligibility?

A: The DF08S-E3/45 is supplied in Tube packaging while the DF08S-HF packaging format is not specified. The DI108S_T0_00001 is also supplied in Tube packaging. Packaging format does not affect electrical equivalency or board-level compatibility. Packaging differences relate only to order quantity and handling procedures.

Q: What is the Moisture Sensitivity Level (MSL) significance?

A: All substitute parts specify MSL 1 (Unlimited), indicating these components have unlimited shelf life and require no special moisture control during storage or handling. This classification simplifies inventory management and reduces storage costs compared to components with higher MSL ratings.