DBLS105G Bridge Rectifier Equivalent & Substitute Parts

Part Overview

The DBLS105G 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 surface mount component operates across a temperature range of -55°C to 150°C and is packaged in a 4-SMD, Gull Wing configuration. The part maintains Active product status and is RoHS3 compliant with unlimited moisture sensitivity level (MSL 1).

Equivalent and substitute parts are necessary when the primary part number becomes unavailable, when alternative packaging formats are required for manufacturing processes, or when design specifications allow for functionally compatible alternatives from different manufacturers while maintaining electrical performance and reliability standards.

Key Parameters

Parameter	Value	Unit
Voltage - Peak Reverse (Max)	600	V
Current - Average Rectified (Io)	1	A
Voltage - Forward (Vf) (Max) @ If	1.1 @ 1 A	V
Current - Reverse Leakage @ Vr	2	µA @ 600 V
Operating Temperature Range	-55 to 150	°C (TJ)
Diode Type	Single Phase	—
Technology	Standard	—
Mounting Type	Surface Mount	—
Package / Case	4-SMD, Gull Wing	—
RoHS Status	ROHS3 Compliant	—

Substitute Part Grouping Explanation

Substitution of the DBLS105G is determined by strict equivalence across the following critical parameters:

Mandatory Matching Parameters:

Voltage - Peak Reverse (Max): 600 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
Mounting Type: Surface Mount
Package / Case: 4-SMD, Gull Wing

Allowable Variations:

Current - Reverse Leakage @ Vr: Permitted to increase from 2 µA to 5 µA or 10 µA (within acceptable leakage specifications for this voltage class)
Packaging Format: Cut Tape (CT) & Digi-Reel® or Tape & Reel (TR) formats are interchangeable for the same electrical component
Manufacturer: Different manufacturers are acceptable provided all electrical and mechanical parameters align
Supplier Device Package designation: May differ while maintaining 4-SMD, Gull Wing physical form factor

All substitute parts listed maintain identical electrical performance within the specified operating envelope and are physically compatible with the original DBLS105G footprint and mounting requirements.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Vr (Max) V	Io (A)	Vf (Max) @ If (V)	Ir @ Vr (µA)	Temp Range (°C)	Packaging	Product Status
DBLS105G	Taiwan Semiconductor Corporation	600	1	1.1 @ 1 A	2 @ 600 V	-55 to 150	Cut Tape (CT) & Digi-Reel®	Active
DBLS105GH	Taiwan Semiconductor Corporation	600	1	1.1 @ 1 A	2 @ 600 V	-55 to 150	Tape & Reel (TR)	Active
ABS6U	SMC Diode Solutions	600	1	1.1 @ 1 A	5 @ 600 V	-55 to 150	Tape & Reel (TR)	Active
B106S_R2_00001	Panjit International Inc.	600	1	1.1 @ 1 A	5 @ 600 V	-55 to 150	Tape & Reel (TR)	Active
DB105S	SMC Diode Solutions	600	1	1.1 @ 1 A	5 @ 600 V	-55 to 150	Cut Tape (CT) & Digi-Reel®	Active
DF06S-E3/77	Vishay General Semiconductor - Diodes Division	600	1	1.1 @ 1 A	5 @ 600 V	-55 to 150	Tape & Reel (TR)	Active
DF06S1	onsemi	600	1	1.1 @ 1 A	5 @ 600 V	-55 to 150	Tape & Reel (TR)	Not For New Designs
DF06SA-E3/77	Vishay General Semiconductor - Diodes Division	600	1	1.1 @ 1 A	5 @ 600 V	-55 to 150	Tape & Reel (TR)	Active
MDB6S	onsemi	600	1	1.1 @ 1 A	10 @ 600 V	-55 to 150	Cut Tape (CT) & Digi-Reel®	Not For New Designs
SDB105-TP	Micro Commercial Co	600	1	1.1 @ 1 A	10 @ 600 V	-55 to 150	Tape & Reel (TR)	Active

Engineering Selection Recommendations

Preferred Substitutes (Active Product Status):

DBLS105GH is the direct equivalent to DBLS105G, differing only in packaging format (Tape & Reel versus Cut Tape & Digi-Reel). Both are manufactured by Taiwan Semiconductor Corporation and maintain identical electrical specifications. Selection between these two depends solely on manufacturing process requirements for tape format compatibility.

ABS6U, B106S_R2_00001, DB105S, DF06S-E3/77, and SDB105-TP are all Active products with full electrical equivalence to DBLS105G. These parts accommodate higher reverse leakage current (5 µA or 10 µA versus 2 µA) while maintaining all other critical parameters. Selection among these alternatives is based on packaging availability, supply chain considerations, and manufacturing process compatibility.

Conditional Substitutes (Not For New Designs):

DF06S1 and MDB6S carry "Not For New Designs" product status. These parts maintain full electrical equivalence but are designated for legacy system support and repair applications only. New product designs should not incorporate these part numbers.

Compliance Considerations:

All substitute parts maintain RoHS3 compliance and ROHS3 Compliant status. DBLS105GH includes AEC-Q101 automotive qualification. Parts with REACH Affected status (ABS6U and DB105S) require verification against specific REACH substance restrictions for applications subject to REACH regulations.

Frequently Asked Questions (FAQ)

Q: Can DBLS105GH be used as a direct replacement for DBLS105G?

A: Yes. DBLS105GH is electrically and mechanically identical to DBLS105G. The only difference is packaging format: DBLS105GH uses Tape & Reel (TR) format while DBLS105G uses Cut Tape (CT) & Digi-Reel® format. Selection depends on your manufacturing equipment's tape handling capability.

Q: What is the significance of the reverse leakage current difference between DBLS105G (2 µA) and substitute parts (5 µA or 10 µA)?

A: Reverse leakage current is the small current that flows through the diode when reverse biased. The DBLS105G specification of 2 µA @ 600 V is tighter than substitute parts at 5 µA or 10 µA. For most applications, this difference is negligible. However, applications requiring extremely low leakage (such as precision analog circuits or high-impedance measurement systems) should retain the DBLS105G or DBLS105GH.

Q: Are all substitute parts suitable for new product designs?

A: No. DF06S1 and MDB6S are marked "Not For New Designs" and should be used only for legacy system support and repair. For new designs, select from: DBLS105GH, ABS6U, B106S_R2_00001, DB105S, DF06S-E3/77, or SDB105-TP.

Q: Does packaging format affect electrical performance?

A: No. Cut Tape (CT) & Digi-Reel® and Tape & Reel (TR) formats contain identical electrical components. The format difference affects only the physical delivery method and manufacturing process compatibility. Electrical performance is identical.

Q: What is the difference between DBLS105GH and other Taiwan Semiconductor Corporation alternatives?

A: DBLS105GH is the only substitute manufactured by Taiwan Semiconductor Corporation. It is identical to DBLS105G except for packaging format. Other substitutes are from different manufacturers (SMC Diode Solutions, Panjit International Inc., Vishay, onsemi, Micro Commercial Co) and may have slightly higher reverse leakage specifications.

Q: Can I use ABS6U if my application is subject to REACH regulations?

A: ABS6U carries "REACH Affected" status, meaning it contains substances regulated under REACH. Verify that your specific application and end-use market allow REACH Affected components. If REACH compliance is mandatory, select from parts with "REACH Unaffected" status: DBLS105G, DBLS105GH, B106S_R2_00001, DF06S-E3/77, DF06S1, MDB6S, or SDB105-TP.

Q: Is DBLS105GH AEC-Q101 qualified?

A: Yes. DBLS105GH includes AEC-Q101 automotive qualification, making it suitable for automotive applications. DBLS105G does not carry this qualification. If automotive-grade components are required, DBLS105GH is the appropriate selection.

Q: What is the inventory status of these parts?

A: DBLS105G has 2,400 units in stock. DBLS105GH has 4,055 units. Other substitutes range from 3,275 to 75,023 units in stock. Inventory levels should be verified at time of procurement as stock quantities change continuously.

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