DF2005-G Bridge Rectifier Equivalent & Substitute Parts

Part Overview

The DF2005-G is a single-phase bridge rectifier manufactured by Comchip Technology, rated for 50V peak reverse voltage and 2A average rectified current. This component is actively produced and widely used in power supply and rectification applications requiring through-hole mounting. Finding equivalent or substitute parts becomes necessary when managing inventory constraints, lead time optimization, or when the primary part reaches end-of-life status.

Key Parameters

Parameter	Value
Diode Type	Single Phase
Voltage - Peak Reverse (Max)	50 V
Current - Average Rectified (Io)	2 A
Voltage - Forward (Vf) (Max) @ If	1.1 V @ 2 A
Current - Reverse Leakage @ Vr	10 µA @ 50 V
Operating Temperature Range	-55°C ~ 150°C (TJ)
Mounting Type	Through Hole
Package / Case	4-EDIP (0.321", 8.15mm)
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution eligibility for the DF2005-G is determined by the following critical parameters:

Voltage Rating: Peak reverse voltage must be ≥ 50V to maintain electrical safety margins
Current Rating: Average rectified current must be ≥ 2A to handle the design load
Diode Type: Must be single-phase bridge rectifier technology
Mounting Type: Must be through-hole compatible
Package Compatibility: Physical dimensions must accommodate 4-EDIP form factor
Temperature Range: Operating range must encompass -55°C to 150°C minimum
Compliance: RoHS3 compliance required for regulatory alignment

Based on these criteria, the identified substitute parts operate at reduced current ratings (1A) compared to the DF2005-G (2A). These parts are electrically compatible at the voltage and thermal levels but represent downrated alternatives suitable only for applications with lower current requirements.

Parameter Comparison

Parameter	DF2005-G (Main)	DB101-BP	DF005M
Manufacturer	Comchip Technology	Micro Commercial Co	Fairchild Semiconductor
Diode Type	Single Phase	Single Phase	Single Phase
Voltage - Peak Reverse (Max)	50 V	50 V	50 V
Current - Average Rectified (Io)	2 A	1 A	1 A
Voltage - Forward (Vf) (Max) @ If	1.1 V @ 2 A	1.1 V @ 1 A	1.1 V @ 1 A
Current - Reverse Leakage @ Vr	10 µA @ 50 V	10 µA @ 50 V	10 µA @ 50 V
Operating Temperature Range	-55°C ~ 150°C	-55°C ~ 150°C	-65°C ~ 150°C
Mounting Type	Through Hole	Through Hole	Through Hole
Package / Case	4-EDIP (0.321", 8.15mm)	4-EDIP (0.321", 8.15mm)	4-EDIP (0.300", 7.62mm)
Product Status	Active	Not For New Designs	Active
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	Not specified

Engineering Selection Recommendations

DF2005-G (Primary Selection): Remains the preferred choice for new designs and applications requiring 2A rectified current capacity. Active product status ensures long-term availability and supply chain stability.

DB101-BP (Limited Substitution): Suitable only for legacy system maintenance or applications with maximum 1A current requirements. Product status indicates this part is not recommended for new designs, limiting its use to replacement scenarios in existing equipment.

DF005M (Alternative for 1A Applications): Active product status from Fairchild Semiconductor provides supply continuity for designs rated at 1A or lower. Extended operating temperature range (-65°C to 150°C) offers additional thermal margin in extreme cold environments. Slight package dimension variation (0.300" vs 0.321") requires PCB layout verification before implementation.

Selection between substitute parts should prioritize current rating alignment with circuit requirements. Downrating from 2A to 1A capability introduces design risk if actual load current approaches the substitute part's maximum rating.

Frequently Asked Questions (FAQ)

Q: Can DB101-BP or DF005M directly replace DF2005-G in existing designs?

A: Direct replacement is not recommended without circuit analysis. Both substitute parts are rated for 1A average rectified current versus the DF2005-G's 2A rating. Replacement is only valid if the actual circuit load current does not exceed 1A.

Q: What is the significance of the "Not For New Designs" status on DB101-BP?

A: This designation indicates the manufacturer has discontinued active development and recommends against using this part in new product designs. It remains available for legacy system support and repair applications only.

Q: Are there package dimension differences between the substitute parts?

A: Yes. The DF005M uses a 4-EDIP package with 0.300" (7.62mm) spacing, while DF2005-G and DB101-BP use 0.321" (8.15mm) spacing. PCB footprint compatibility must be verified before substitution.

Q: Do all parts meet the same compliance requirements?

A: DF2005-G and DB101-BP are both ROHS3 compliant. RoHS status for DF005M is not specified in the provided data. Compliance verification is required before use in regulated applications.

Q: Which substitute part offers the best long-term availability?

A: DF005M from Fairchild Semiconductor carries active product status, indicating ongoing manufacturing and supply chain support. DB101-BP's "Not For New Designs" status suggests limited future availability.

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