DBF20G Bridge Rectifier Single Phase 600V 1.5A Equivalent & Substitute Parts

Part Overview

The DBF20G is a single-phase bridge rectifier manufactured by onsemi, rated for 600V peak reverse voltage and 1.5A average rectified current. This component is classified as obsolete, making equivalent substitute parts necessary for new designs and ongoing production requirements. The DBF20G operates at a maximum junction temperature of 150°C and is packaged in a 4-SIP through-hole configuration. Identifying compatible substitutes ensures design continuity and supply chain flexibility for applications requiring single-phase rectification at this voltage and current rating.

Key Parameters

Parameter	DBF20G
Voltage - Peak Reverse (Max)	600 V
Current - Average Rectified (Io)	1.5 A
Voltage - Forward (Vf) (Max)	1.05 V @ 700 mA
Current - Reverse Leakage @ Vr	10 µA @ 600 V
Operating Temperature (TJ)	150°C
Mounting Type	Through Hole
Package / Case	4-SIP, DBF
Diode Type	Single Phase
Technology	Standard
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitute parts for the DBF20G are identified based on electrical and mechanical parameter equivalence. The critical parameters determining substitutability are:

Voltage - Peak Reverse (Max): 600 V
Current - Average Rectified (Io): 1.5 A
Diode Type: Single Phase
Technology: Standard
Mounting Type: Through Hole
Package Category: 4-SIP configuration

The KBP06G from Diodes Incorporated meets all these core electrical requirements and maintains through-hole mounting compatibility. While the physical package designation differs (KBP versus DBF), both are 4-SIP configurations suitable for the same PCB footprint applications. The substitute maintains the same voltage and current ratings, ensuring functional equivalence in rectification applications.

Parameter Comparison

Parameter	DBF20G (onsemi)	KBP06G (Diodes Incorporated)
Voltage - Peak Reverse (Max)	600 V	600 V
Current - Average Rectified (Io)	1.5 A	1.5 A
Voltage - Forward (Vf) (Max)	1.05 V @ 700 mA	1.1 V @ 1.5 A
Current - Reverse Leakage @ Vr	10 µA @ 600 V	5 µA @ 600 V
Operating Temperature (TJ)	150°C	-65°C ~ 150°C
Mounting Type	Through Hole	Through Hole
Package / Case	4-SIP, DBF	4-SIP, KBP
Diode Type	Single Phase	Single Phase
Technology	Standard	Standard
Product Status	Obsolete	Active
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)

Engineering Selection Recommendations

The KBP06G is a direct functional substitute for the DBF20G. Both components share identical voltage and current ratings, operate within compatible temperature ranges, and maintain the same through-hole mounting configuration. The KBP06G offers the advantage of active product status, ensuring ongoing availability and supply chain support compared to the obsolete DBF20G.

The KBP06G demonstrates superior reverse leakage characteristics (5 µA versus 10 µA at 600V), indicating improved leakage performance. Forward voltage specifications differ slightly due to different measurement conditions, with the KBP06G measured at full rated current (1.5A) versus the DBF20G at 700mA. The KBP06G includes an extended operating temperature range (-65°C to 150°C) compared to the DBF20G specification of 150°C maximum.

Both components maintain REACH compliance and identical moisture sensitivity ratings. The KBP06G carries RoHS3 compliance certification, supporting modern regulatory requirements.

Frequently Asked Questions (FAQ)

Q: Can the KBP06G directly replace the DBF20G in existing designs?

A: Yes. Both components share identical peak reverse voltage (600V) and average rectified current (1.5A) ratings. The through-hole mounting configuration is compatible, and both use 4-SIP package geometry suitable for standard PCB layouts.

Q: Are there physical footprint differences between DBF and KBP packages?

A: Both DBF and KBP designations refer to 4-SIP through-hole configurations. While manufacturer package codes differ, the physical pin spacing and mounting requirements are compatible for standard single-phase bridge rectifier applications.

Q: What is the significance of the reverse leakage difference?

A: The KBP06G exhibits lower reverse leakage (5 µA) compared to the DBF20G (10 µA) at 600V. This represents improved leakage performance and may provide benefits in applications sensitive to leakage current, though both values remain within acceptable ranges for standard rectification circuits.

Q: Does the extended temperature range of the KBP06G affect compatibility?

A: No. The KBP06G operating range (-65°C to 150°C) encompasses the DBF20G maximum specification (150°C). The extended lower temperature capability provides additional design flexibility without compromising compatibility.

Q: Are there compliance or certification differences?

A: Both components maintain REACH compliance and MSL 1 ratings. The KBP06G includes RoHS3 certification, supporting modern regulatory standards. Both carry identical ECCN and HTSUS classifications.

Q: What is the availability status of each component?

A: The DBF20G is classified as obsolete. The KBP06G maintains active product status with established supply chain availability, making it the preferred selection for new designs and production continuity.

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