DBF150G Bridge Rectifier Single Phase 600V 3.2A Equivalent & Substitute Parts

Part Overview

The DBF150G is a single-phase bridge rectifier manufactured by onsemi, rated for 600V peak reverse voltage and 3.2A average rectified current. This component is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and procurement continuity. Bridge rectifiers in this voltage and current class are fundamental power conversion components used in AC-to-DC conversion applications across industrial and consumer electronics.

Key Parameters

Parameter	Value
Diode Type	Single Phase
Technology	Standard
Voltage - Peak Reverse (Max)	600 V
Current - Average Rectified (Io)	3.2 A
Voltage - Forward (Vf) (Max) @ If	1.1 V @ 7.5 A
Current - Reverse Leakage @ Vr	10 µA @ 600 V
Operating Temperature	150°C (TJ)
Mounting Type	Through Hole
Package / Case	4-SIP, DBF
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution for the DBF150G is determined by the following critical parameters:

Voltage Rating: All substitutes must maintain 600V peak reverse voltage to ensure circuit protection and reliability
Current Rating: Substitutes must support minimum 3.2A average rectified current; higher ratings are acceptable for applications with current margin requirements
Forward Voltage: Maximum forward voltage of 1.1V @ rated current ensures thermal and efficiency compatibility
Reverse Leakage: Maximum 10 µA @ 600V maintains circuit isolation characteristics
Mounting Type: Through-hole mounting is required for PCB compatibility
Package Configuration: 4-terminal bridge rectifier configuration (4-SIP or equivalent)

Substitute parts are grouped into two categories: direct parametric equivalents and functional substitutes with higher current ratings.

Parameter Comparison

Parameter	DBF150G (onsemi)	DBF150G (Sanyo)	KBL06-E4/51 (Vishay)	GBJ1506 (SMC Diode Solutions)
Manufacturer Part Number	DBF150G	DBF150G	KBL06-E4/51	GBJ1506
Diode Type	Single Phase	Single Phase	Single Phase	Single Phase
Voltage - Peak Reverse (Max)	600 V	600 V	600 V	600 V
Current - Average Rectified (Io)	3.2 A	3.2 A	4 A	15 A
Voltage - Forward (Vf) (Max) @ If	1.1 V @ 7.5 A	1.1 V @ 7.5 A	1.1 V @ 4 A	1.1 V @ 7.5 A
Current - Reverse Leakage @ Vr	10 µA @ 600 V	10 µA @ 600 V	5 µA @ 600 V	10 µA @ 600 V
Operating Temperature	150°C (TJ)	150°C (TJ)	-50°C ~ 150°C (TJ)	-55°C ~ 150°C (TJ)
Mounting Type	Through Hole	Through Hole	Through Hole	Through Hole
Package / Case	4-SIP, DBF	4-SIP, DBF	4-SIP, KBL	4-ESIP
Product Status	Obsolete	Active	Active	Active
RoHS Status	Not specified	Not applicable	ROHS3 Compliant	ROHS3 Compliant

Engineering Selection Recommendations

DBF150G (Sanyo): This part is a parametric equivalent with identical electrical specifications to the original onsemi DBF150G. It provides direct substitution for applications requiring exact performance matching. Product status is active, ensuring long-term availability. This option is preferred when circuit design margins do not permit current rating changes.

KBL06-E4/51 (Vishay General Semiconductor - Diodes Division): This substitute offers 4A average rectified current, providing 25% additional current capacity over the original 3.2A rating. Forward voltage and reverse leakage characteristics are compatible. Operating temperature range extends to -50°C, providing enhanced thermal performance. RoHS3 compliance is confirmed. This option is suitable for applications where increased current margin is beneficial and package footprint compatibility with 4-SIP KBL configuration is acceptable.

GBJ1506 (SMC Diode Solutions): This substitute provides 15A average rectified current, offering significant current headroom for applications with future scaling requirements or conservative design practices. All critical voltage and leakage parameters match the original specification. Operating temperature range extends to -55°C. RoHS3 compliance is confirmed. Package configuration is 4-ESIP, which maintains through-hole mounting compatibility. This option is suitable for applications where maximum current capacity and thermal margin are prioritized.

Frequently Asked Questions (FAQ)

Q: Can KBL06-E4/51 be used as a direct replacement for DBF150G?

A: Yes. The KBL06-E4/51 meets all critical electrical parameters: 600V peak reverse voltage, forward voltage of 1.1V @ 4A, and reverse leakage of 5 µA @ 600V. The 4A current rating exceeds the original 3.2A requirement. Through-hole mounting and 4-SIP package configuration ensure PCB compatibility. Verify mechanical fit with the 4-SIP KBL package footprint.

Q: What is the difference between the Sanyo DBF150G and the onsemi DBF150G?

A: Both parts share identical part numbers and electrical specifications. The Sanyo version is currently in active production status, whereas the onsemi version is obsolete. Both maintain 600V rating, 3.2A current, and 150°C maximum junction temperature. Selection between them depends on procurement availability and supply chain requirements.

Q: Is GBJ1506 suitable for applications designed for 3.2A operation?

A: Yes. The GBJ1506 is rated for 15A average rectified current, which exceeds the 3.2A requirement. All voltage and leakage parameters are compatible. The higher current rating does not degrade performance in lower-current applications; it provides additional thermal and electrical margin. Verify that the 4-ESIP package footprint is compatible with the PCB layout.

Q: What are the package differences between these substitutes?

A: The original DBF150G uses 4-SIP DBF package. The Sanyo DBF150G maintains this package. The KBL06-E4/51 uses 4-SIP KBL package, which is mechanically similar but may have different lead spacing. The GBJ1506 uses 4-ESIP package. All three maintain through-hole mounting. Verify PCB footprint compatibility before selection.

Q: Are all substitutes RoHS compliant?

A: The Sanyo DBF150G does not specify RoHS status. The KBL06-E4/51 and GBJ1506 are both ROHS3 compliant. For applications requiring RoHS compliance certification, select KBL06-E4/51 or GBJ1506.

Q: What is the operating temperature range for each part?

A: The onsemi DBF150G and Sanyo DBF150G are rated to 150°C maximum junction temperature. The KBL06-E4/51 operates from -50°C to 150°C. The GBJ1506 operates from -55°C to 150°C. For applications requiring extended low-temperature operation, KBL06-E4/51 or GBJ1506 provide superior thermal range.

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