DF02-G Bridge Rectifier Equivalent & Substitute Parts

Part Overview

The DF02-G is a single-phase bridge rectifier manufactured by Comchip Technology, rated for 200V peak reverse voltage and 1A average rectified current. This component is actively produced and widely used in AC-to-DC conversion applications requiring through-hole mounting. Equivalent and substitute parts become necessary when the primary part is unavailable, when design flexibility is required across manufacturing sources, or when specific compliance certifications are mandated for particular applications.

Substiute Parts

DF02-G

Comchip TechnologyIn Stock: 906DF02-G Datasheet

Current PartRFQ

DB103-BP

Micro Commercial CoIn Stock: 2047DB103-BP Datasheet

Parametric EquivalentRFQ

DF03

SMC Diode SolutionsIn Stock: 3495DF03 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the DF02-G is determined by strict equivalence across the following parameters:

• Voltage - Peak Reverse (Max): 200 V
• Current - Average Rectified (Io): 1 A
• Voltage - Forward (Vf) (Max) @ If: 1.1 V @ 1 A
• Operating Temperature Range: -55°C ~ 150°C (TJ)
• Mounting Type: Through Hole
• Package / Case: 4-EDIP (0.321", 8.15mm)
• Diode Type: Single Phase
• Technology: Standard

Parts meeting all these criteria are classified as parametric equivalents. Secondary parameters such as reverse leakage current, RoHS compliance status, and product lifecycle status provide additional differentiation for specific application requirements but do not disqualify substitution based on core electrical and mechanical compatibility.

Parameter Comparison

Engineering Selection Recommendations

All three parts meet the core electrical and mechanical requirements for direct substitution. Selection between them should be based on the following factors:

DF02-G (Comchip Technology): Primary choice for new designs. Active product status ensures long-term availability and manufacturing consistency. ROHS3 compliant and REACH unaffected.

DB103-BP (Micro Commercial Co): Parametric equivalent with identical electrical specifications. Product status is "Not For New Designs," indicating this part is in end-of-life phase. Use only for legacy system maintenance or when existing inventory must be consumed. ROHS3 compliant and REACH unaffected.

DF03 (SMC Diode Solutions): Active product with superior reverse leakage characteristics (5 µA @ 200 V versus 10 µA @ 100 V on DF02-G). ROHS3 compliant. REACH status is "Affected," requiring verification against specific regulatory requirements for your application region.

Frequently Asked Questions (FAQ)

Q: Can DB103-BP be used as a direct replacement for DF02-G?

A: Yes. DB103-BP meets all core electrical and mechanical parameters. However, its "Not For New Designs" status indicates the manufacturer is discontinuing this product line. Use only when existing inventory is available or for maintenance of legacy systems.

Q: What is the difference between DF02-G and DF03?

A: Both parts are electrically and mechanically equivalent. DF03 exhibits lower reverse leakage current (5 µA @ 200 V) compared to DF02-G (10 µA @ 100 V). DF03 carries "REACH Affected" status, while DF02-G is "REACH Unaffected." Verify REACH compliance requirements for your specific application before selection.

Q: Are all three parts physically interchangeable?

A: Yes. All three parts use the 4-EDIP (0.321", 8.15mm) package and are rated for through-hole mounting. No PCB layout modifications are required for substitution.

Q: Which part should I specify for a new design?

A: DF02-G or DF03. Both are active products with confirmed long-term availability. DF02-G is the original specification; DF03 offers improved reverse leakage performance. Confirm REACH compliance requirements before final selection if your application is subject to EU regulations.

Q: What does "Not For New Designs" mean for DB103-BP?

A: This designation indicates the manufacturer is phasing out this product. While it remains functionally equivalent, Micro Commercial Co does not recommend its use in new designs. Existing inventory may be available, but future availability is not guaranteed.