DB101 Bridge Rectifier Single Phase 50V 1A Equivalent & Substitute Parts

Part Overview

The DB101 is a single-phase bridge rectifier diode manufactured by Micro Commercial Co, rated for 50V peak reverse voltage and 1A average rectified current in a 4-EDIP through-hole package. The main part is classified as obsolete, making substitute components necessary for new designs and ongoing production support. Alternative parts meeting the same electrical and mechanical specifications are available from multiple manufacturers with active product status and improved compliance ratings.

Key Parameters

Parameter	Value
Diode Type	Single Phase
Voltage - Peak Reverse (Max)	50 V
Current - Average Rectified (Io)	1 A
Voltage - Forward (Vf) (Max) @ If	1.1 V @ 1 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)

Substitute Part Grouping Explanation

Substitute parts for the DB101 are classified into three categories based on electrical and mechanical compatibility:

Direct Manufacturer Substitutes maintain identical electrical specifications (50V, 1A) and package dimensions (4-EDIP 0.321", 8.15mm), differing only in packaging format or RoHS compliance status. These parts are pin-compatible and require no circuit modifications.

Parametric Equivalents match all critical electrical parameters (50V, 1A, forward voltage, reverse leakage) and package footprint but may originate from different manufacturers. These parts are functionally interchangeable within the same application.

Similar Parts with Extended Ratings exceed the DB101 specifications in voltage or current capacity while maintaining the same package and mounting type. These parts are backward-compatible but not recommended as direct replacements due to different electrical characteristics.

Key parameters determining substitution eligibility:

Voltage - Peak Reverse (Max): 50 V (minimum requirement)
Current - Average Rectified (Io): 1 A (minimum requirement)
Mounting Type: Through Hole
Package / Case: 4-EDIP with compatible dimensions

Parameter Comparison

Manufacturer Part Number	Manufacturer	Voltage - Peak Reverse (Max)	Current - Average Rectified (Io)	Voltage - Forward (Vf) (Max) @ If	Current - Reverse Leakage @ Vr	Operating Temperature	Package / Case	Product Status	RoHS Status
DB101	Micro Commercial Co	50 V	1 A	1.1 V @ 1 A	10 µA @ 50 V	-55°C ~ 150°C	4-EDIP (0.321", 8.15mm)	Obsolete	RoHS non-compliant
DB101-BP	Micro Commercial Co	50 V	1 A	1.1 V @ 1 A	10 µA @ 50 V	-55°C ~ 150°C	4-EDIP (0.321", 8.15mm)	Not For New Designs	ROHS3 Compliant
DB101	SMC Diode Solutions	50 V	1 A	1.1 V @ 1 A	5 µA @ 50 V	-55°C ~ 150°C	4-EDIP (0.321", 8.15mm)	Active	ROHS3 Compliant
DF005M	Fairchild Semiconductor	50 V	1 A	1.1 V @ 1 A	10 µA @ 50 V	-65°C ~ 150°C	4-EDIP (0.300", 7.62mm)	Active	Not specified
DF005-G	Comchip Technology	50 V	1 A	1.1 V @ 1 A	10 µA @ 50 V	-55°C ~ 150°C	4-EDIP (0.321", 8.15mm)	Active	ROHS3 Compliant
DF01	Good-Ark Semiconductor	100 V	1 A	1.1 V @ 500 mA	5 µA @ 100 V	-55°C ~ 150°C	4-EDIP (0.321", 8.15mm)	Active	ROHS3 Compliant
DF2005-G	Comchip Technology	50 V	2 A	1.1 V @ 2 A	10 µA @ 50 V	-55°C ~ 150°C	4-EDIP (0.321", 8.15mm)	Active	ROHS3 Compliant
DF06M	onsemi	600 V	1.5 A	1.1 V @ 1 A	5 µA @ 600 V	-55°C ~ 150°C	4-EDIP (0.300", 7.62mm)	Obsolete	ROHS3 Compliant

Engineering Selection Recommendations

For New Designs: Select DB101 from SMC Diode Solutions. This part maintains identical electrical specifications to the original DB101, offers active product status, includes ROHS3 compliance, and provides improved reverse leakage characteristics (5 µA vs. 10 µA). The part is in active production with established supply availability.

For Direct Replacement (Same Footprint): DF005-G from Comchip Technology provides exact electrical and mechanical compatibility with the original DB101. This part matches all critical parameters, maintains the 0.321" package dimension, and carries ROHS3 compliance with active product status.

For Existing Inventory Management: DB101-BP from Micro Commercial Co serves as a packaging variant of the original part with identical electrical performance. Although marked "Not For New Designs," this part is suitable for sustaining production of existing products and offers ROHS3 compliance.

For Extended Operating Range: DF005M from Fairchild Semiconductor extends the lower operating temperature limit to -65°C while maintaining all other electrical specifications. This part is appropriate for applications requiring enhanced low-temperature performance.

For Higher Current Applications: DF2005-G from Comchip Technology doubles the current rating to 2A while maintaining 50V voltage specification and identical package footprint. This part is suitable only for circuits designed to accommodate higher current capacity.

Not Recommended: DF01 from Good-Ark Semiconductor and DF06M from onsemi exceed the DB101 voltage rating (100V and 600V respectively) and are not suitable as direct replacements. These parts introduce unnecessary cost and thermal considerations for 50V applications.

Frequently Asked Questions (FAQ)

Q: Can I use DF005-G as a direct replacement for DB101? A: Yes. DF005-G matches all electrical specifications (50V, 1A, 1.1V forward voltage, 10µA reverse leakage) and maintains identical package dimensions (4-EDIP 0.321", 8.15mm). No circuit modifications are required.

Q: What is the difference between DB101-BP and DB101? A: DB101-BP is the same part in tube packaging format instead of bulk packaging. Electrical specifications are identical. DB101-BP includes ROHS3 compliance while the original DB101 does not.

Q: Why is DF01 listed as a substitute if it has 100V rating instead of 50V? A: DF01 is a parametric equivalent that exceeds the DB101 specifications. While electrically compatible in 50V circuits, it is not recommended as a direct replacement due to different voltage rating and forward voltage characteristics at different current levels.

Q: Can I use DF2005-G in place of DB101? A: DF2005-G is mechanically and electrically compatible but rated for 2A instead of 1A. Use this part only if your circuit design requires higher current capacity. It is not a direct replacement for 1A applications.

Q: What are the package dimension differences between substitute parts? A: Most substitutes use 4-EDIP package with 0.321" (8.15mm) dimensions matching the DB101. DF005M and DF06M use 4-EDIP with 0.300" (7.62mm) dimensions. Verify PCB footprint compatibility before selection.

Q: Which substitute part has the best compliance rating? A: DB101-BP, DF005-G, DF2005-G, DF01, and DB101 (SMC Diode Solutions) all carry ROHS3 compliance. The original DB101 from Micro Commercial Co is RoHS non-compliant.

Q: Are there temperature range differences between substitutes? A: Most parts operate -55°C to 150°C. DF005M extends to -65°C minimum. DF01 maintains -55°C to 150°C. Select based on application temperature requirements.

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