DB156G Bridge Rectifier Single Phase 800V 1.5A Equivalent & Substitute Parts

Part Overview

The DB156G is a single-phase bridge rectifier manufactured by GeneSiC Semiconductor, rated for 800V peak reverse voltage and 1.5A average rectified current. This component is classified as Active product status and is RoHS Compliant. Bridge rectifiers in this voltage and current class are used in AC-to-DC conversion applications requiring through-hole mounting in 4-EDIP package configuration. Substitute parts are identified when equivalent electrical performance parameters and mechanical compatibility are maintained within the allowed specifications for this product category.

Substiute Parts

DB156G

GeneSiC SemiconductorIn Stock: 2193DB156G Datasheet

Current PartRFQ

DB106-BP

Micro Commercial CoIn Stock: 5822DB106-BP Datasheet

SimilarRFQ

DF08M

onsemiIn Stock: 8401DF08M Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the DB156G are identified based on strict electrical and mechanical parameter matching. The substitution logic is based on the following criteria:

Primary Matching Parameters:

• Voltage - Peak Reverse (Max): 800V (exact match required)
• Diode Type: Single Phase (exact match required)
• Mounting Type: Through Hole (exact match required)
• Technology: Standard (exact match required)
• Operating Temperature Range: -55°C to 150°C (exact match required)

Secondary Compatibility Parameters:

• Current - Average Rectified (Io): 1.5A or higher acceptable
• Voltage - Forward (Vf): 1.1V or lower acceptable
• Current - Reverse Leakage: 5µA or lower acceptable
• Package / Case: 4-EDIP configuration with compatible pin spacing

Substitute parts must maintain all primary parameters exactly and meet or exceed secondary parameter thresholds to ensure functional equivalence in the target application circuit.

Parameter Comparison

Engineering Selection Recommendations

DB156G (Primary Part - GeneSiC Semiconductor)

The DB156G is the reference component with Active product status and RoHS Compliant certification. This part is suitable for new designs and ongoing production applications. Current inventory of 2170 pieces supports standard procurement cycles.

DB106-BP (Micro Commercial Co) - Substitute with Current Limitation

The DB106-BP maintains 800V peak reverse voltage and identical operating temperature range. Package dimensions are identical (0.321", 8.15mm). However, the average rectified current rating is 1A compared to 1.5A for the DB156G. This part is suitable only for applications where the circuit current requirement does not exceed 1A. The reverse leakage current is 10µA versus 5µA for the main part. Product status is Active with ROHS3 Compliant certification. Inventory availability is 5744 pieces.

DF08M (onsemi) - Substitute with Package Dimension Variance

The DF08M matches the 800V peak reverse voltage, 1.5A average rectified current, and operating temperature range of the DB156G. However, the product status is Obsolete, indicating this part is no longer in active production. The package case dimension differs slightly (0.300", 7.62mm versus 0.321", 8.15mm), which may affect PCB layout compatibility. ROHS3 Compliant certification is provided. This part should be used only when existing inventory must be consumed or when legacy system maintenance requires exact part matching.

Frequently Asked Questions (FAQ)

Q: Can DB106-BP be used as a direct replacement for DB156G?

A: DB106-BP is electrically compatible for applications where the circuit current does not exceed 1A. The 800V voltage rating, operating temperature range, and package dimensions are identical. However, if the application requires 1.5A current capacity, DB106-BP is not suitable. Verify circuit current requirements before substitution.

Q: What is the significance of the package dimension difference between DB156G and DF08M?

A: DB156G uses 4-EDIP package with 0.321" (8.15mm) spacing, while DF08M uses 4-EDIP package with 0.300" (7.62mm) spacing. This 0.021" difference affects PCB hole positioning and may require layout modification. Mechanical compatibility must be verified before PCB assembly.

Q: Why is DF08M listed as Obsolete?

A: DF08M is classified as Obsolete product status by onsemi, indicating it is no longer manufactured or supported. While inventory may be available (8292 pieces), this part should not be selected for new designs. Use only for legacy system maintenance or when existing stock must be consumed.

Q: What are the key electrical differences between the three parts?

A: All three parts share 800V peak reverse voltage and -55°C to 150°C operating temperature. DB156G and DF08M both provide 1.5A current capacity, while DB106-BP is limited to 1A. Reverse leakage current is 5µA for DB156G and DF08M, and 10µA for DB106-BP. Forward voltage drop is 1.1V across all parts at their respective rated currents.

Q: Are all three parts RoHS compliant?

A: DB156G is RoHS Compliant. DB106-BP and DF08M are both ROHS3 Compliant. All three parts meet RoHS requirements and are suitable for applications with RoHS compliance mandates.

Q: What is the moisture sensitivity level for these parts?

A: DB156G has Moisture Sensitivity Level (MSL) of 1 (Unlimited). DF08M has MSL listed as Not Applicable. DB106-BP has MSL of 1 (Unlimited). MSL 1 indicates no moisture sensitivity precautions are required during storage or handling.