DB106S-HF Bridge Rectifier Equivalent & Substitute Parts

Part Overview

The DB106S-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 surface mount component operates across a temperature range of -55°C to 150°C and is housed in a 4-SMD, Gull Wing package (DBS supplier device package). The part maintains Active product status with 1094 units currently in stock.

Substitute parts become necessary when the primary component experiences supply constraints, obsolescence, or when design flexibility permits equivalent alternatives. The parts listed below maintain electrical and mechanical compatibility with the DB106S-HF through identical or superior parameter specifications.

Substiute Parts

DB106S-HF

Comchip TechnologyIn Stock: 1190DB106S-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

Substitution eligibility for the DB106S-HF is determined by the following critical parameters:

Mandatory Matching Parameters:

• Diode Type: Single Phase
• Voltage - Peak Reverse (Max): 800 V
• Current - Average Rectified (Io): 1 A
• Voltage - Forward (Vf) (Max) @ If: 1.1 V @ 1 A
• Operating Temperature Range: -55°C ~ 150°C (TJ)
• Mounting Type: Surface Mount
• Package / Case: 4-SMD, Gull Wing

All substitute parts listed maintain these electrical and mechanical specifications. Variations in Current - Reverse Leakage @ Vr (10 µA versus 5 µA) represent improved performance characteristics and do not restrict substitution. Differences in supplier device package nomenclature (DBS, DFS, 4-SDIP) reflect manufacturer-specific designations for functionally equivalent 4-SMD, Gull Wing packages.

Parameter Comparison

Engineering Selection Recommendations

DB106S-HF (Primary Selection) The DB106S-HF maintains Active product status with established supply availability (1094 units in stock). This part is the preferred selection for new designs and ongoing production requirements.

DF08S-E3/45 (Vishay General Semiconductor - Diodes Division) The DF08S-E3/45 is an Active product with the highest inventory level (5750 units) and demonstrates superior reverse leakage characteristics (5 µA versus 10 µA). This part carries ROHS3 compliance and REACH Unaffected status. Selection of this substitute is appropriate when supply of the primary part is constrained or when improved leakage performance provides design margin.

DI108S_T0_00001 (Panjit International Inc.) The DI108S_T0_00001 is an Active product with equivalent electrical specifications and improved reverse leakage performance (5 µA). This part carries ROHS3 compliance and REACH Unaffected status. Selection is appropriate as a secondary alternative when primary and first-choice substitutes are unavailable.

DB106S-G (Comchip Technology) The DB106S-G carries Obsolete product status despite current inventory availability (1132 units). This part is not recommended for new designs or long-term production planning due to its discontinued status. Use only when existing designs require exact part matching and no alternative substitutes are acceptable.

Frequently Asked Questions (FAQ)

Q: Can the DF08S-E3/45 directly replace the DB106S-HF in existing designs?

A: Yes. The DF08S-E3/45 maintains identical electrical specifications (800 V peak reverse voltage, 1 A average rectified current, 1.1 V forward voltage) and mechanical compatibility (4-SMD, Gull Wing package, surface mount). The improved reverse leakage characteristic (5 µA versus 10 µA) represents enhanced performance and does not restrict substitution.

Q: What is the difference between the DBS and DFS supplier device packages?

A: DBS and DFS are manufacturer-specific designations for functionally equivalent 4-SMD, Gull Wing surface mount packages. Both packages provide identical electrical and mechanical interfaces. The designation reflects the supplier's internal package nomenclature and does not affect circuit compatibility.

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

A: Obsolete product status indicates that the manufacturer has discontinued production and will not accept new orders. Existing inventory represents remaining stock from prior production runs. For applications requiring long-term supply assurance, selection of Active products (DB106S-HF, DF08S-E3/45, or DI108S_T0_00001) is appropriate.

Q: Are all substitute parts ROHS3 compliant?

A: The DB106S-HF does not specify RoHS status in the provided data. The three substitute parts (DB106S-G, DF08S-E3/45, and DI108S_T0_00001) are all ROHS3 Compliant with Moisture Sensitivity Level 1 (Unlimited) and REACH Unaffected status.

Q: What is the significance of the 5 µA versus 10 µA reverse leakage difference?

A: Both specifications meet the 800 V peak reverse voltage requirement. The 5 µA leakage (DF08S-E3/45 and DI108S_T0_00001) represents improved performance compared to the 10 µA specification (DB106S-HF and DB106S-G). Lower reverse leakage reduces standby current and heat dissipation, providing additional design margin without restricting substitution.

Q: Can these parts be used interchangeably in production?

A: Yes, provided that the application circuit design does not depend on specific manufacturer characteristics beyond the listed electrical and mechanical parameters. All substitute parts maintain the same voltage rating, current rating, forward voltage, operating temperature range, and package configuration. Qualification of substitute parts should follow standard engineering change procedures.