DBLS104GHC1G Bridge Rectifier Equivalent & Substitute Parts

Part Overview

The DBLS104GHC1G is a single-phase bridge rectifier diode manufactured by Taiwan Semiconductor Corporation, designed for 400 V peak reverse voltage applications with 1 A average rectified current capacity. This component operates across the automotive temperature range of -55°C to 150°C and meets AEC-Q101 automotive qualification standards. The part is currently in active product status with 1051 units in stock.

Bridge rectifier diodes of this specification are essential in power supply circuits, battery charging systems, and AC-to-DC conversion applications where single-phase rectification is required. Equivalent and substitute parts become necessary when addressing supply chain constraints, design optimization requirements, or when transitioning between active and obsolete product lines while maintaining electrical and mechanical compatibility.

Substiute Parts

DBLS104GHC1G

Taiwan Semiconductor CorporationIn Stock: 1103DBLS104GHC1G Datasheet

Current PartRFQ

DB104S-G

Comchip TechnologyIn Stock: 1569DB104S-G Datasheet

Parametric EquivalentRFQ

DF04S-E3/45

Vishay General Semiconductor - Diodes DivisionIn Stock: 5496DF04S-E3/45 Datasheet

Parametric EquivalentRFQ

DF04S-G

Comchip TechnologyIn Stock: 1502DF04S-G Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the DBLS104GHC1G is determined by strict electrical and mechanical parameter matching across the following criteria:

Electrical Parameters (Critical for Substitution):

• Voltage - Peak Reverse (Max): 400 V
• Current - Average Rectified (Io): 1 A
• Voltage - Forward (Vf) (Max) @ If: 1.1 V @ 1 A
• Operating Temperature Range: -55°C to 150°C (TJ)
• Diode Type: Single Phase
• Technology: Standard

Mechanical Parameters (Critical for Substitution):

• Mounting Type: Surface Mount
• Package / Case: 4-SMD, Gull Wing

Compliance Parameters:

• RoHS Status: ROHS3 Compliant
• Moisture Sensitivity Level (MSL): 1 (Unlimited)

All substitute parts listed maintain identical electrical ratings and mechanical compatibility with the main part. Variations in reverse leakage current (Current - Reverse Leakage @ Vr) do not disqualify substitution when all other parameters remain within specification, as this parameter represents device-specific performance characteristics rather than functional incompatibility.

Parameter Comparison

Engineering Selection Recommendations

Primary Selection (Active Status):

The DF04S-E3/45 manufactured by Vishay General Semiconductor - Diodes Division is the recommended substitute for new designs and applications requiring active product status. This part maintains all critical electrical parameters identical to the DBLS104GHC1G, operates within the same temperature range, and carries ROHS3 compliance certification. With 5400 units in current inventory, the DF04S-E3/45 provides superior supply chain availability. The reverse leakage current specification of 5 µA @ 400 V falls within acceptable operational parameters for single-phase bridge rectifier applications.

Alternative Selection (Active Status):

The DBLS104GHC1G remains the primary choice when Taiwan Semiconductor Corporation sourcing is specified or preferred. With active product status and 1051 units in stock, this part continues to meet all automotive and compliance requirements.

Obsolete Product Alternatives:

The DB104S-G (Comchip Technology) and DF04S-G (Comchip Technology) are classified as obsolete products. These parts maintain electrical and mechanical compatibility with the DBLS104GHC1G but should be selected only when existing inventory must be utilized or when design legacy requirements mandate their use. Both obsolete alternatives carry ROHS3 compliance and unlimited moisture sensitivity ratings.

Compliance Considerations:

All listed substitute parts maintain ROHS3 compliance, REACH unaffected status, and identical moisture sensitivity levels. The DBLS104GHC1G carries automotive grade designation with AEC-Q101 qualification; substitute parts do not explicitly reference automotive qualification in the provided specifications. For applications requiring automotive qualification verification, direct confirmation with manufacturers is necessary based on available documentation.

Frequently Asked Questions (FAQ)

Q: Can the DF04S-E3/45 be used as a direct replacement for the DBLS104GHC1G in existing designs?

A: Yes. The DF04S-E3/45 maintains identical electrical ratings (400 V peak reverse voltage, 1 A average rectified current, 1.1 V forward voltage drop), operates across the same temperature range (-55°C to 150°C), and uses the same 4-SMD Gull Wing package. No circuit modifications are required for substitution.

Q: What is the significance of the reverse leakage current differences between these parts?

A: The DBLS104GHC1G specifies 2 µA @ 400 V reverse leakage, while substitute parts range from 5 µA to 10 µA @ 400 V. These variations represent normal manufacturing tolerances within the standard technology classification and do not affect functional compatibility in single-phase bridge rectifier applications. All values remain within acceptable operational parameters for this component category.

Q: Why are DB104S-G and DF04S-G listed as obsolete?

A: Product status reflects manufacturer discontinuation decisions. Obsolete designation indicates these parts are no longer in active production, though existing inventory may remain available. For new designs, active status parts such as DF04S-E3/45 or DBLS104GHC1G are preferred to ensure long-term supply chain continuity.

Q: Are all substitute parts suitable for automotive applications?

A: The DBLS104GHC1G carries explicit automotive grade designation with AEC-Q101 qualification. The substitute parts listed maintain identical electrical and mechanical specifications; however, automotive qualification status for substitute parts is not explicitly provided in the available specifications. Applications requiring automotive qualification should be verified directly with manufacturers.

Q: What packaging format is used for these bridge rectifier diodes?

A: All listed parts use 4-SMD (Surface Mount Device) with Gull Wing lead configuration. This package style is standard for surface mount assembly on printed circuit boards. Tube packaging is specified for inventory management; component functionality remains identical regardless of packaging format.

Q: Can these parts be used interchangeably in PCB assembly?

A: Yes. All parts share identical 4-SMD Gull Wing package geometry and pin configuration. PCB footprints, solder pad layouts, and assembly processes remain unchanged across all listed substitutes. No design modifications to printed circuit boards are necessary.

Q: What is the moisture sensitivity level, and why is it important?

A: All listed parts carry MSL 1 (Unlimited) rating, indicating unlimited shelf life without moisture exposure precautions. This classification eliminates moisture-related handling restrictions during storage, transportation, and assembly processes, simplifying supply chain management and reducing component preparation requirements.