DBB08G-TM-E Bridge Rectifier Equivalent & Substitute Parts

Part Overview

The DBB08G-TM-E is a single-phase bridge rectifier manufactured by onsemi, rated for 600 V peak reverse voltage with 800 mA average rectified current in a 4-SMD surface mount package. This component is classified as obsolete, making equivalent and substitute parts necessary for ongoing production and maintenance applications. Substitute parts must maintain electrical compatibility across voltage, current, and thermal specifications while accommodating different packaging formats and manufacturer availability.

Key Parameters

Parameter	Value
Diode Type	Single Phase
Technology	Standard
Voltage - Peak Reverse (Max)	600 V
Current - Average Rectified (Io)	800 mA
Voltage - Forward (Vf) (Max) @ If	1.05 V @ 400 mA
Current - Reverse Leakage @ Vr	10 µA @ 600 V
Operating Temperature	150°C (TJ)
Mounting Type	Surface Mount
Package / Case	4-SMD, Gull Wing
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution eligibility is determined by the following critical parameters:

Voltage Rating: All substitutes must maintain 600 V peak reverse voltage specification
Current Rating: Substitutes rated at 800 mA or higher are acceptable
Forward Voltage: Must not exceed 1.05 V @ 400 mA to ensure thermal and efficiency compatibility
Reverse Leakage: Must not exceed 10 µA @ 600 V
Operating Temperature Range: Must support minimum 150°C junction temperature
Mounting Type: Surface mount technology required
Package Compatibility: 4-SMD gull wing or equivalent footprint

The identified substitutes meet these criteria with variations in current capacity, forward voltage characteristics, and temperature operating ranges.

Parameter Comparison

Parameter	DBB08G-TM-E	MDB6S	HD06-T
Manufacturer	onsemi	onsemi	Diodes Incorporated
Voltage - Peak Reverse (Max)	600 V	600 V	600 V
Current - Average Rectified (Io)	800 mA	1 A	800 mA
Voltage - Forward (Vf) (Max) @ If	1.05 V @ 400 mA	1.1 V @ 1 A	1 V @ 400 mA
Current - Reverse Leakage @ Vr	10 µA @ 600 V	10 µA @ 600 V	5 µA @ 600 V
Operating Temperature Range	150°C (TJ)	-55°C ~ 150°C (TJ)	-55°C ~ 150°C (TJ)
Mounting Type	Surface Mount	Surface Mount	Surface Mount
Package / Case	4-SMD, Gull Wing	4-SMD, Gull Wing	4-SMD, Gull Wing
Product Status	Obsolete	Not For New Designs	Active
RoHS Status	Not specified	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)

Engineering Selection Recommendations

MDB6S (onsemi): This substitute provides higher current capacity at 1 A, exceeding the 800 mA requirement of the DBB08G-TM-E. Forward voltage is marginally higher at 1.1 V @ 1 A. The part is classified as "Not For New Designs," limiting its suitability for new applications. ROHS3 compliance is confirmed. Inventory availability is substantial at 29,182 pieces.

HD06-T (Diodes Incorporated): This substitute matches the 800 mA current specification and offers superior forward voltage performance at 1 V @ 400 mA, lower than the original specification. Reverse leakage is reduced to 5 µA @ 600 V. The part maintains active product status, making it suitable for both legacy and new designs. ROHS3 compliance is confirmed. Inventory availability is high at 85,800 pieces. Extended operating temperature range of -55°C to 150°C provides additional thermal margin.

For applications requiring component continuity, HD06-T is the preferred substitute due to active product status and superior electrical characteristics. MDB6S remains viable for legacy systems where higher current capacity is beneficial and product status constraints are acceptable.

Frequently Asked Questions (FAQ)

Q: Can MDB6S be used as a direct replacement for DBB08G-TM-E?

A: MDB6S meets the core voltage and leakage specifications but is classified as "Not For New Designs." It provides higher current capacity (1 A vs. 800 mA) and slightly elevated forward voltage (1.1 V vs. 1.05 V @ 400 mA). Substitution is electrically feasible for legacy applications where the higher current rating does not create thermal or efficiency concerns.

Q: What are the advantages of HD06-T over the original DBB08G-TM-E?

A: HD06-T maintains identical voltage and current ratings while offering lower forward voltage (1 V vs. 1.05 V @ 400 mA) and reduced reverse leakage (5 µA vs. 10 µA @ 600 V). The part carries active product status and ROHS3 compliance, with extended operating temperature range (-55°C to 150°C). These characteristics make it suitable for both replacement and new design applications.

Q: Are all three parts compatible with the same PCB footprint?

A: All three parts use 4-SMD gull wing packages with identical mechanical specifications, ensuring PCB footprint compatibility without layout modifications.

Q: What is the significance of product status in selecting a substitute?

A: Product status indicates manufacturer support and long-term availability. HD06-T (Active) is recommended for new designs and long-term production. MDB6S (Not For New Designs) is suitable for legacy system maintenance where existing inventory or established supply chains are in place. DBB08G-TM-E (Obsolete) requires substitution for ongoing applications.

Q: Do all substitutes meet RoHS compliance requirements?

A: HD06-T and MDB6S are both ROHS3 compliant. The original DBB08G-TM-E does not specify RoHS status. Compliance verification is required for applications with regulatory requirements.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message