DB105S-HF Bridge Rectifier Equivalent & Substitute Parts

Part Overview

The DB105S-HF is a single-phase bridge rectifier diode manufactured by Comchip Technology, rated for 600 V peak reverse voltage and 1 A average rectified current. This component is designed for surface mount applications in 4-SMD, Gull Wing packaging. The part maintains Active product status with 808 units currently in stock.

Substitute parts become necessary when the DB105S-HF reaches end-of-life status, experiences supply constraints, or when alternative packaging formats are required for manufacturing processes. The substitute parts listed below maintain electrical and mechanical compatibility within the specified parameter ranges.

Substiute Parts

DB105S-HF

Comchip TechnologyIn Stock: 881DB105S-HF Datasheet

Current PartRFQ

DB105S-G

Comchip TechnologyIn Stock: 1188DB105S-G Datasheet

Parametric EquivalentRFQ

DF06S-G

Comchip TechnologyIn Stock: 1180DF06S-G Datasheet

Parametric EquivalentRFQ

DF06S

Fairchild SemiconductorIn Stock: 38654DF06S Datasheet

Parametric EquivalentRFQ

DF06S-E3/45

Vishay General Semiconductor - Diodes DivisionIn Stock: 4172DF06S-E3/45 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the DB105S-HF is determined by the following criteria:

Mandatory Electrical Parameters:

• Voltage - Peak Reverse (Max): 600 V
• Current - Average Rectified (Io): 1 A
• Voltage - Forward (Vf) (Max) @ If: 1.1 V @ 1 A
• Current - Reverse Leakage @ Vr: 10 µA @ 600 V (or lower)
• Operating Temperature Range: -55°C to 150°C minimum

Mandatory Mechanical Parameters:

• Diode Type: Single Phase
• Technology: Standard
• Mounting Type: Surface Mount
• Package / Case: 4-SMD, Gull Wing

All substitute parts listed meet or exceed these electrical and mechanical specifications. Variations in packaging format (Tube vs. unspecified) and product status (Active vs. Obsolete) do not affect functional compatibility in the circuit application.

Parameter Comparison

Engineering Selection Recommendations

Primary Substitutes (Active Status):

DF06S (Fairchild Semiconductor) and DF06S-E3/45 (Vishay General Semiconductor) are the preferred substitutes due to Active product status. Both parts maintain full electrical compatibility with the DB105S-HF. The DF06S offers the widest operating temperature range (-65°C to 150°C) and the highest inventory availability (38,560 units). The DF06S-E3/45 provides superior reverse leakage characteristics (5 µA vs. 10 µA) and includes RoHS3 compliance certification.

Secondary Substitutes (Obsolete Status):

DB105S-G and DF06S-G are functionally equivalent but carry Obsolete product status. These parts maintain identical electrical parameters and mechanical compatibility. DB105S-G is a direct variant from the same manufacturer (Comchip Technology) with higher inventory (1,081 units). DF06S-G is also from Comchip Technology with comparable inventory (1,140 units).

Compliance Considerations:

DF06S-E3/45 and DB105S-G include RoHS3 compliance certification and Moisture Sensitivity Level (MSL) 1 rating. All substitute parts carry EAR99 ECCN classification and 8541.10.0080 HTSUS code, matching the main part's regulatory profile.

Frequently Asked Questions (FAQ)

Q: Can DB105S-G be used as a direct replacement for DB105S-HF?

A: Yes. DB105S-G maintains identical electrical parameters (600 V, 1 A, 1.1 V forward voltage, 10 µA reverse leakage) and mechanical specifications (4-SMD Gull Wing package, surface mount). The primary difference is product status (Obsolete vs. Active) and packaging format (Tube vs. unspecified). Electrical and functional compatibility is complete.

Q: What is the difference between DF06S and DF06S-E3/45?

A: Both parts are electrically equivalent with 600 V, 1 A ratings and identical forward voltage specifications. DF06S-E3/45 provides lower reverse leakage current (5 µA vs. 10 µA) and includes RoHS3 compliance certification with MSL 1 rating. DF06S is manufactured by Fairchild Semiconductor with higher inventory availability.

Q: Are all substitute parts compatible with the same PCB footprint?

A: Yes. All substitute parts use 4-SMD, Gull Wing package configuration with surface mount mounting type. PCB footprint compatibility is maintained across all listed substitutes.

Q: Does the operating temperature range differ between substitutes?

A: DF06S (Fairchild Semiconductor) operates from -65°C to 150°C, providing a 10°C lower minimum temperature compared to the DB105S-HF and other substitutes which operate from -55°C to 150°C. All parts meet or exceed the -55°C to 150°C specification of the main part.

Q: Which substitute offers the best long-term availability?

A: DF06S (Fairchild Semiconductor) provides the highest inventory level at 38,560 units. For Active status parts with compliance certifications, DF06S-E3/45 (Vishay) offers 4,130 units with RoHS3 compliance and superior reverse leakage characteristics.

Q: Can obsolete parts be used in new designs?

A: DB105S-G and DF06S-G are functionally equivalent and electrically compatible. However, obsolete status indicates discontinued manufacturing. These parts are suitable for replacement applications or existing inventory utilization but are not recommended for new design implementations due to future supply uncertainty.