DF202-G Bridge Rectifier Equivalent & Substitute Parts

Part Overview

The DF202-G is a single-phase bridge rectifier manufactured by Comchip Technology, rated for 200 V peak reverse voltage and 2 A average rectified current. This component is currently in active production status and is widely used in AC-to-DC conversion applications requiring through-hole mounting.

Substitute parts become necessary when the DF202-G reaches end-of-life, when inventory constraints occur, or when design requirements allow for alternative electrical specifications within acceptable operating parameters. The parts listed below provide functional equivalence based on shared electrical characteristics and mechanical compatibility.

Key Parameters

Parameter	Value
Voltage - Peak Reverse (Max)	200 V
Current - Average Rectified (Io)	2 A
Voltage - Forward (Vf) (Max)	1.1 V @ 2 A
Current - Reverse Leakage @ Vr	10 µA @ 200 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 DF202-G is determined by the following criteria:

Primary Compatibility Parameters:

Voltage - Peak Reverse (Max): Must equal or exceed 200 V
Diode Type: Must be Single Phase bridge rectifier
Technology: Must be Standard
Mounting Type: Must be Through Hole
Operating Temperature Range: Must encompass -55°C ~ 150°C
RoHS Status: Must be ROHS3 Compliant

Secondary Compatibility Parameters:

Current - Average Rectified (Io): May be equal to or greater than 2 A
Voltage - Forward (Vf): Should not exceed 1.1 V at rated current
Current - Reverse Leakage: Should not exceed 10 µA @ 200 V
Package / Case: Physical dimensions must accommodate 4-EDIP form factor

Substitute parts meeting these criteria can replace the DF202-G in applications where the electrical and thermal specifications are satisfied.

Parameter Comparison

Parameter	DF202-G (Main)	DB103-BP	DF02M
Manufacturer	Comchip Technology	Micro Commercial Co	onsemi
Product Status	Active	Not For New Designs	Obsolete
Voltage - Peak Reverse (Max)	200 V	200 V	200 V
Current - Average Rectified (Io)	2 A	1 A	1.5 A
Voltage - Forward (Vf) (Max)	1.1 V @ 2 A	1.1 V @ 1 A	1.1 V @ 1 A
Current - Reverse Leakage @ Vr	10 µA @ 200 V	10 µA @ 200 V	5 µA @ 200 V
Operating Temperature Range	-55°C ~ 150°C	-55°C ~ 150°C	-55°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)
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant

Engineering Selection Recommendations

DF202-G (Primary Selection) The DF202-G remains the preferred choice for new designs. Active production status ensures long-term availability and supply chain stability. Full compliance with ROHS3 and REACH requirements supports regulatory requirements across all markets.

DB103-BP (Limited Substitution) DB103-BP is designated "Not For New Designs" by the manufacturer. While it meets the core electrical specifications (200 V peak reverse voltage, -55°C ~ 150°C operating range, ROHS3 compliance), the 1 A current rating is below the DF202-G specification of 2 A. This part is suitable only for applications where the actual load current does not exceed 1 A and where existing inventory must be utilized.

DF02M (Not Recommended) DF02M carries an Obsolete product status and should not be selected for new designs or long-term applications. Although it meets voltage and temperature specifications, obsolescence status indicates discontinued manufacturing and uncertain future availability. The 4-EDIP package dimension (0.300", 7.62mm) also differs from the DF202-G (0.321", 8.15mm), requiring mechanical re-evaluation.

Frequently Asked Questions (FAQ)

Q: Can DB103-BP directly replace DF202-G in all applications? A: No. DB103-BP has a maximum current rating of 1 A compared to DF202-G's 2 A rating. Substitution is valid only when the application's actual rectified current requirement does not exceed 1 A. Exceeding this limit will cause thermal stress and potential component failure.

Q: Why is DF02M listed as a substitute if it is obsolete? A: DF02M is included in the substitute list based on historical cross-reference data. However, its Obsolete status means it should not be selected for new designs. It may only be considered if existing inventory must be consumed in legacy product support scenarios.

Q: Are the package dimensions interchangeable between DF202-G and DF02M? A: The packages are similar but not identical. DF202-G uses 4-EDIP (0.321", 8.15mm) while DF02M uses 4-EDIP (0.300", 7.62mm). Although both are 4-EDIP form factors, the dimensional difference may affect PCB layout and mechanical fit. Physical verification is required before substitution.

Q: What is the significance of the reverse leakage current difference between DF202-G and DF02M? A: DF02M specifies 5 µA @ 200 V compared to DF202-G's 10 µA @ 200 V. Lower reverse leakage indicates better diode quality and lower standby power dissipation. This difference is not a barrier to substitution but represents a performance advantage in DF02M where it applies.

Q: Are all substitute parts ROHS3 compliant? A: Yes. All parts listed (DF202-G, DB103-BP, and DF02M) are ROHS3 Compliant and REACH Unaffected, meeting environmental and regulatory requirements for EU and global markets.

Q: Can I use DB103-BP in a 2 A application if I parallel multiple units? A: Paralleling diodes introduces additional complexity including current sharing, thermal management, and reliability considerations. This approach is outside the scope of direct substitution and requires detailed circuit analysis and thermal modeling.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message