DBLS105G C1G Bridge Rectifier Equivalent & Substitute Parts

Part Overview

The DBLS105G C1G is a single-phase bridge rectifier diode manufactured by Taiwan Semiconductor Corporation, 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 and is currently in active product status with RoHS3 compliance. Substitute parts are necessary to address component availability, manufacturing discontinuation, or supply chain requirements while maintaining electrical and mechanical compatibility within specified parameters.

Substiute Parts

DBLS105G C1G

Taiwan Semiconductor CorporationIn Stock: 713DBLS105G C1G Datasheet

Current PartRFQ

DB105S-G

Comchip TechnologyIn Stock: 1188DB105S-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

DF06S-G

Comchip TechnologyIn Stock: 1180DF06S-G Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the DBLS105G C1G is permissible with parts that maintain identical or superior electrical performance across the following critical parameters:

Core Substitution Criteria:

• Voltage - Peak Reverse (Max): 600 V (minimum requirement)
• Current - Average Rectified (Io): 1 A (minimum requirement)
• Voltage - Forward (Vf) (Max) @ If: 1.1 V @ 1 A (maximum allowable)
• Diode Type: Single Phase
• Technology: Standard
• Mounting Type: Surface Mount
• Package / Case: 4-SMD, Gull Wing

All identified substitute parts meet these core electrical parameters. Operating temperature range variations and reverse leakage current differences within the specified ranges do not preclude substitution. Parts with obsolete product status remain electrically equivalent but may present supply availability constraints.

Parameter Comparison

Engineering Selection Recommendations

Primary Recommendation: DF06S (Fairchild Semiconductor)

The DF06S is the preferred substitute for the DBLS105G C1G. This part maintains active product status, ensuring long-term availability and supply chain stability. It meets all core electrical parameters and offers an extended operating temperature range (-65°C ~ 150°C) compared to the main part (-55°C ~ 150°C), providing additional thermal margin. Current inventory of 38,560 units supports immediate procurement requirements.

Secondary Recommendation: DF06S-E3/45 (Vishay General Semiconductor - Diodes Division)

The DF06S-E3/45 is an active product with full RoHS3 and REACH compliance documentation. This part exhibits superior reverse leakage characteristics (5 µA @ 600 V) compared to the main part (2 µA @ 600 V), indicating enhanced performance in low-leakage applications. Tube packaging and 4,130 units in stock support standard procurement workflows.

Tertiary Options: DB105S-G and DF06S-G

Both DB105S-G (Comchip Technology) and DF06S-G (Comchip Technology) are electrically equivalent but carry obsolete product status. These parts should be selected only when primary and secondary recommendations are unavailable, as obsolete designation indicates discontinued manufacturing and potential future supply constraints.

Frequently Asked Questions (FAQ)

Q: Can the DF06S directly replace the DBLS105G C1G without circuit modification?

A: Yes. The DF06S meets all critical electrical parameters: 600 V peak reverse voltage, 1 A average rectified current, 1.1 V forward voltage at 1 A, and identical 4-SMD Gull Wing surface mount packaging. No circuit modifications are required.

Q: What is the significance of the reverse leakage current difference between the main part (2 µA) and substitute parts (5-10 µA)?

A: Reverse leakage current represents the small current flowing through the diode in reverse bias condition. The main part exhibits lower leakage (2 µA @ 600 V), while substitutes range from 5-10 µA @ 600 V. All values remain within acceptable ranges for standard bridge rectifier applications. Applications requiring ultra-low leakage should specify the DF06S-E3/45 (5 µA) over alternatives with 10 µA leakage.

Q: Why does the DF06S have an extended operating temperature range (-65°C to 150°C) compared to other parts (-55°C to 150°C)?

A: Operating temperature range is a manufacturer-specified parameter reflecting device qualification and thermal performance characteristics. The DF06S extended lower temperature limit provides additional margin for applications in cold environments. This does not affect substitution compatibility for applications within the -55°C to 150°C range.

Q: Are obsolete parts (DB105S-G, DF06S-G) suitable for new designs?

A: Obsolete parts are electrically equivalent but not recommended for new designs due to discontinued manufacturing status. These parts should be reserved for legacy system maintenance or when active alternatives are unavailable. Active products (DF06S, DF06S-E3/45) are preferred for new development to ensure long-term supply availability.

Q: Does packaging format (Tube vs. unspecified) affect electrical performance or substitution compatibility?

A: Packaging format does not affect electrical performance or circuit compatibility. Tube packaging is a supply format consideration for procurement and handling. Substitution is valid regardless of packaging format differences.

Q: What compliance certifications should be verified for critical applications?

A: All recommended substitutes maintain ROHS3 compliance and MSL 1 (Unlimited) moisture sensitivity rating, matching the main part specifications. The DF06S-E3/45 provides explicit REACH compliance documentation. Verify specific compliance requirements with application standards before final part selection.