DBG150G Bridge Rectifier Equivalent & Substitute Parts

Part Overview

The DBG150G is a single-phase bridge rectifier manufactured by onsemi, rated for 600 V peak reverse voltage with 3.6 A average rectified current. This component is classified as obsolete, making identification of suitable substitute parts essential for ongoing system support and new design implementations. The through-hole 4-SIP package configuration and standard rectification technology establish the baseline for equivalent part selection.

Substiute Parts

DBG150G

onsemiIn Stock: 827DBG150G Datasheet

Current PartRFQ

KBL06-E4/51

Vishay General Semiconductor - Diodes DivisionIn Stock: 1966KBL06-E4/51 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the DBG150G are identified based on strict electrical and mechanical compatibility criteria. The following parameters must align for functional equivalence:

• Voltage - Peak Reverse (Max): 600 V minimum
• Diode Type: Single Phase
• Mounting Type: Through Hole
• Package / Case: 4-SIP configuration
• Technology: Standard rectification

The KBL06-E4/51 meets these core substitution criteria. While the average rectified current rating (4 A) exceeds the DBG150G specification (3.6 A), this represents an acceptable design margin in bridge rectifier applications. The forward voltage characteristic (1.1 V @ 4 A) is within acceptable tolerance for standard rectifier performance. Both components share identical peak reverse voltage ratings and through-hole mounting architecture.

Parameter Comparison

Engineering Selection Recommendations

The KBL06-E4/51 is the qualified substitute for the DBG150G based on electrical parameter alignment and product availability. The substitute part carries Active product status with ROHS3 compliance, providing long-term supply chain stability compared to the obsolete DBG150G. Both components maintain REACH Unaffected classification and EAR99 export control status.

The KBL06-E4/51 demonstrates superior reverse leakage characteristics (5 µA versus 10 µA at 600 V), indicating improved leakage performance. The extended operating temperature range (-50°C to 150°C) of the substitute provides additional thermal margin for applications requiring low-temperature operation. Current rating elevation (4 A versus 3.6 A) supports design flexibility without compromising electrical safety margins.

Frequently Asked Questions (FAQ)

Q: Can the KBL06-E4/51 directly replace the DBG150G in existing PCB layouts?

A: Both components use 4-SIP through-hole packaging. Physical pin compatibility exists; however, verify PCB footprint dimensions against manufacturer datasheets to confirm mechanical fit. The KBL package designation may have minor dimensional variations from the DBG package.

Q: What is the significance of the higher current rating on the KBL06-E4/51?

A: The 4 A rating on the KBL06-E4/51 exceeds the DBG150G specification of 3.6 A. This represents a design margin increase and does not create compatibility issues in applications designed for 3.6 A operation. The substitute part operates within safe thermal and electrical limits at the lower current requirement.

Q: How do the forward voltage characteristics compare between these parts?

A: The DBG150G specifies 900 mV at 7.5 A, while the KBL06-E4/51 specifies 1.1 V at 4 A. These measurements occur at different current levels, making direct comparison imprecise. Both values fall within acceptable ranges for standard bridge rectifier performance in typical AC-to-DC conversion applications.

Q: What compliance advantages does the KBL06-E4/51 offer?

A: The KBL06-E4/51 carries ROHS3 compliance certification, whereas the DBG150G does not specify RoHS status. For applications subject to RoHS regulatory requirements, the substitute part provides documented compliance. Both components maintain REACH Unaffected status.

Q: Is the extended temperature range of the KBL06-E4/51 a requirement for substitution?

A: No. The extended range (-50°C to 150°C) is an additional capability that does not affect substitution validity. Applications operating within the DBG150G temperature envelope (up to 150°C) function identically with the KBL06-E4/51.