DB106ST-HF Bridge Rectifier Equivalent & Substitute Parts

Part Overview

The DB106ST-HF is a single-phase bridge rectifier manufactured by Comchip Technology, designed for surface mount applications with a peak reverse voltage rating of 800 V and average rectified current of 1 A. This component is classified as obsolete, necessitating identification of active equivalent parts for ongoing design support and procurement continuity. The DB106ST-HF operates across a temperature range of -55°C to 150°C and is packaged in a 4-SMD, Gull Wing configuration.

Substiute Parts

DB106ST-HF

Comchip TechnologyIn Stock: 1070DB106ST-HF Datasheet

Current PartRFQ

DB106S-HF

Comchip TechnologyIn Stock: 1190DB106S-HF Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the DB106ST-HF is determined by equivalence across the following critical parameters:

• Diode Type: Single Phase bridge rectifier configuration
• Voltage Rating: Peak reverse voltage of 800 V
• Current Rating: Average rectified current of 1 A
• Forward Voltage Characteristics: Maximum forward voltage of 1.1 V at 1 A
• Reverse Leakage: Maximum 10 µA at 800 V
• Temperature Range: Operating range of -55°C to 150°C
• Package Type: 4-SMD, Gull Wing surface mount configuration
• Device Package Designation: DBS package standard

The primary substitute, DB106S-HF, maintains identical electrical specifications and package configuration while offering active product status. Additional cross-reference parts (DB106S-G, DI108S_T0_00001, DF08S-E3/45) provide alternative sourcing options within the same functional and electrical parameter set.

Parameter Comparison

Engineering Selection Recommendations

The DB106S-HF is the primary recommended substitute for the obsolete DB106ST-HF. Both components are manufactured by Comchip Technology and maintain identical electrical and mechanical specifications across all critical parameters. The DB106S-HF carries active product status, ensuring continued availability and manufacturing support.

Selection of the DB106S-HF provides:

• Full electrical parameter equivalence with the original DB106ST-HF
• Identical package configuration (4-SMD, Gull Wing DBS)
• Consistent export compliance classification (EAR99)
• Matching tariff classification (HTSUS 8541.10.0080)
• Active manufacturing status with established supply chain availability

Additional cross-reference parts (DB106S-G, DI108S_T0_00001, DF08S-E3/45) are available as secondary alternatives and maintain the same functional and electrical parameter specifications. Selection among these alternatives is determined by specific supply chain requirements and inventory availability.

Frequently Asked Questions (FAQ)

Q: Can the DB106S-HF directly replace the DB106ST-HF in existing designs?

A: Yes. The DB106S-HF maintains identical electrical specifications (800 V peak reverse voltage, 1 A average rectified current, 1.1 V forward voltage at 1 A) and package configuration (4-SMD, Gull Wing DBS). No circuit modifications are required.

Q: What is the primary difference between DB106ST-HF and DB106S-HF?

A: The DB106ST-HF is classified as obsolete, while the DB106S-HF carries active product status. All electrical and mechanical parameters are equivalent.

Q: Are the cross-reference parts (DB106S-G, DI108S_T0_00001, DF08S-E3/45) direct substitutes?

A: These parts maintain the same electrical specifications and package type. They serve as alternative sourcing options within the same functional parameter set.

Q: Does the operating temperature range differ between the main part and substitute?

A: Both the DB106ST-HF and DB106S-HF operate across -55°C to 150°C. The DB106S-HF specification designates this as junction temperature (TJ).

Q: Are there any compliance or export restrictions affecting substitution?

A: Both the DB106ST-HF and DB106S-HF carry identical ECCN classification (EAR99) and HTSUS code (8541.10.0080), ensuring equivalent compliance status.

Q: What parameters must remain constant when selecting a substitute bridge rectifier?

A: Peak reverse voltage (800 V), average rectified current (1 A), forward voltage characteristics (1.1 V @ 1 A), reverse leakage (10 µA @ 800 V), operating temperature range (-55°C to 150°C), and package configuration (4-SMD, Gull Wing DBS) must all remain equivalent.