DBLS104G C1G Bridge Rectifier Equivalent & Substitute Parts

Part Overview

The DBLS104G C1G is a single-phase bridge rectifier manufactured by Taiwan Semiconductor Corporation, rated for 400 V peak reverse voltage and 1 A average rectified current. This component is designed for surface mount applications in 4-SMD, Gull Wing packaging and maintains Active product status with full RoHS3 compliance.

Substitute parts become necessary when the primary component experiences supply discontinuation, extended lead times, or when design flexibility permits selection from multiple qualified sources. The following equivalent parts maintain identical electrical performance parameters and mechanical compatibility with the DBLS104G C1G.

Substiute Parts

DBLS104G C1G

Taiwan Semiconductor CorporationIn Stock: 1109DBLS104G C1G 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 DBLS104G C1G is determined by strict equivalence across the following critical parameters:

Mandatory Equivalence Criteria:

• Voltage - Peak Reverse (Max): 400 V
• Current - Average Rectified (Io): 1 A
• Diode Type: Single Phase
• Technology: Standard
• Mounting Type: Surface Mount
• Package / Case: 4-SMD, Gull Wing
• Operating Temperature Range: -55°C to 150°C (TJ)
• RoHS Status: ROHS3 Compliant
• Moisture Sensitivity Level (MSL): 1 (Unlimited)

All substitute parts listed below satisfy these mandatory criteria. Variations in reverse leakage current and forward voltage characteristics remain within acceptable operational limits for single-phase bridge rectifier applications and do not preclude functional substitution.

Parameter Comparison

Engineering Selection Recommendations

Primary Recommendation: DF04S-E3/45

The DF04S-E3/45 manufactured by Vishay General Semiconductor - Diodes Division is the preferred substitute for the DBLS104G C1G. This part maintains Active product status, ensuring continued availability and manufacturer support. The DF04S-E3/45 demonstrates superior reverse leakage characteristics (5 µA @ 400 V) compared to the primary part (2 µA @ 400 V), indicating enhanced performance margins. Full RoHS3 compliance and MSL 1 rating confirm environmental and handling compatibility.

Secondary Recommendation: DB104S-G

The DB104S-G from Comchip Technology provides functional equivalence with identical electrical ratings. However, this part carries Obsolete product status, indicating discontinued manufacturing. Selection of DB104S-G is appropriate only when existing inventory is confirmed available and long-term supply continuity is not required.

Tertiary Recommendation: DF04S-G

The DF04S-G from Comchip Technology meets all mandatory electrical and mechanical criteria. Like DB104S-G, this part is classified as Obsolete and should be selected only when inventory availability is verified and supply continuity is not a design constraint.

Frequently Asked Questions (FAQ)

Q: Can the DF04S-E3/45 directly replace the DBLS104G C1G without circuit modification?

A: Yes. The DF04S-E3/45 maintains identical voltage ratings (400 V peak reverse), current ratings (1 A average rectified), forward voltage characteristics (1.1 V @ 1 A), and thermal operating range (-55°C to 150°C). The 4-SMD, Gull Wing package is mechanically and electrically compatible with existing PCB layouts designed for the DBLS104G C1G.

Q: What is the significance of the reverse leakage current difference between the DBLS104G C1G (2 µA) and substitute parts?

A: Reverse leakage current variations (2 µA, 5 µA, or 10 µA @ 400 V) remain within acceptable operational limits for bridge rectifier applications. These differences do not affect functional performance in standard power supply and rectification circuits. All values are measured at identical conditions (400 V reverse voltage) and represent normal manufacturing variation within the single-phase bridge rectifier category.

Q: Why is the DF04S-E3/45 recommended over DB104S-G and DF04S-G?

A: The DF04S-E3/45 maintains Active product status, confirming ongoing manufacturing and availability. DB104S-G and DF04S-G are classified as Obsolete, indicating discontinued production. For new designs and applications requiring long-term component availability, Active status parts are preferred. Obsolete parts are suitable only when existing inventory is confirmed and supply continuity is not a design requirement.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All listed substitute parts (DB104S-G, DF04S-E3/45, DF04S-G) carry ROHS3 Compliant certification, matching the compliance status of the primary DBLS104G C1G. Moisture Sensitivity Level (MSL) rating of 1 (Unlimited) is consistent across all parts, indicating identical handling and storage requirements.

Q: Can substitute parts be mixed in the same production batch?

A: Yes. All substitute parts meet identical electrical specifications, thermal ratings, and mechanical packaging requirements. PCB assembly processes designed for the DBLS104G C1G accommodate all listed substitutes without modification. However, component traceability and supply chain documentation should reflect the specific manufacturer part number used in each production unit.

Q: What packaging formats are available for substitute parts?

A: The primary DBLS104G C1G is supplied in standard packaging. Substitute parts DB104S-G, DF04S-E3/45, and DF04S-G are available in Tube packaging. Packaging format does not affect electrical performance or mechanical compatibility; it reflects supplier distribution and handling methods only.