DB105 Bridge Rectifier Single Phase 600V 1A Equivalent & Substitute Parts

Part Overview

The DB105 is a single-phase bridge rectifier diode rated for 600V peak reverse voltage and 1A average rectified current, housed in a 4-EDIP (0.321", 8.15mm) through-hole package. Manufactured by Micro Commercial Co, this component is classified as obsolete. Due to its obsolete status and limited availability from the original manufacturer, identifying equivalent and substitute parts is necessary for ongoing design support and production continuity.

Key Parameters

Parameter	Value
Diode Type	Single Phase
Technology	Standard
Voltage - Peak Reverse (Max)	600 V
Current - Average Rectified (Io)	1 A
Voltage - Forward (Vf) (Max) @ If	1.1 V @ 1 A
Current - Reverse Leakage @ Vr	10 µA @ 600 V
Operating Temperature Range	-55°C ~ 150°C (TJ)
Mounting Type	Through Hole
Package / Case	4-EDIP (0.321", 8.15mm)
RoHS Status	RoHS non-compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitute parts for the DB105 are categorized based on the following electrical and mechanical parameters:

Direct Manufacturer Equivalent: Parts with identical electrical specifications (600V, 1A) and compatible package dimensions, differing only in packaging format or RoHS compliance status.

Parametric Equivalents: Parts meeting all critical electrical parameters (600V, 1A, forward voltage, reverse leakage, temperature range) with identical or compatible package footprints, regardless of manufacturer.

Similar Alternatives: Parts with the same voltage rating (600V) and compatible package type but with higher current ratings (1.5A or 2A), suitable for applications with current margin requirements.

Excluded from Substitution: Parts with voltage ratings below 600V (such as DF005M at 50V) do not meet the minimum voltage specification and are not suitable substitutes.

Parameter Comparison

Part Number	Manufacturer	Voltage (Vr Max)	Current (Io)	Vf @ If	Reverse Leakage @ Vr	Package	Product Status	RoHS Status
DB105	Micro Commercial Co	600 V	1 A	1.1 V @ 1 A	10 µA @ 600 V	4-EDIP (0.321", 8.15mm)	Obsolete	RoHS non-compliant
DB105-BP	Micro Commercial Co	600 V	1 A	1.1 V @ 1 A	10 µA @ 600 V	4-EDIP (0.321", 8.15mm)	Active	ROHS3 Compliant
DB105-G	Comchip Technology	600 V	1 A	1.1 V @ 1 A	10 µA @ 600 V	4-EDIP (0.321", 8.15mm)	Obsolete	ROHS3 Compliant
DB105 (SMC Diode Solutions)	SMC Diode Solutions	600 V	1 A	1.1 V @ 1 A	5 µA @ 600 V	4-EDIP (0.321", 8.15mm)	Active	ROHS3 Compliant
DF05	SMC Diode Solutions	600 V	1 A	1.1 V @ 1 A	5 µA @ 600 V	4-EDIP (0.321", 8.15mm)	Active	ROHS3 Compliant
DF06	HY Electronic (Cayman) Limited	600 V	1 A	1.1 V @ 1 A	10 µA @ 600 V	4-EDIP (0.321", 8.15mm)	Active	ROHS3 Compliant
DF06-G	Comchip Technology	600 V	1 A	1.1 V @ 1 A	10 µA @ 600 V	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	4-EDIP (0.300", 7.62mm)	Obsolete	ROHS3 Compliant
DF206-G	Comchip Technology	600 V	2 A	1.1 V @ 2 A	10 µA @ 600 V	4-EDIP (0.321", 8.15mm)	Active	ROHS3 Compliant

Engineering Selection Recommendations

Primary Recommendation - Direct Replacement: DB105-BP (Micro Commercial Co) is the direct active equivalent with identical electrical specifications and package dimensions. It maintains the same 600V/1A rating and forward voltage characteristics while offering ROHS3 compliance and active product status.

Alternative Active Equivalents: DF05, DF06, and DF06-G provide parametric equivalence with 600V/1A ratings and compatible 4-EDIP packages. These parts are in active production status and ROHS3 compliant. DF05 and DF06 from SMC Diode Solutions and HY Electronic respectively feature improved reverse leakage specifications (5 µA vs. 10 µA).

Higher Current Margin Option: DF206-G (Comchip Technology) and DF06M (onsemi) offer 600V ratings with elevated current ratings (2A and 1.5A respectively). These are suitable for applications requiring additional current margin. DF206-G maintains the 0.321" package dimension, while DF06M uses a slightly smaller 0.300" package footprint.

Compliance Consideration: The original DB105 is RoHS non-compliant. All recommended active substitutes are ROHS3 compliant, supporting modern manufacturing and environmental standards.

Frequently Asked Questions (FAQ)

Q: Can DB105-BP directly replace the obsolete DB105?

A: Yes. DB105-BP is manufactured by the same company (Micro Commercial Co) with identical electrical specifications (600V, 1A) and package dimensions (4-EDIP 0.321"). The primary difference is active product status and ROHS3 compliance.

Q: What is the difference between DB105-G and DF06-G?

A: Both parts meet the 600V/1A specification with identical package dimensions and ROHS3 compliance. DB105-G is manufactured by Comchip Technology under the DB105 base product number, while DF06-G is the same manufacturer's DF06 series equivalent. Electrical performance is identical.

Q: Can DF206-G (2A) be used instead of DB105 (1A)?

A: DF206-G is electrically compatible with 600V peak reverse voltage and identical forward voltage characteristics. The 2A current rating provides additional margin for applications with variable or peak current demands. Package dimensions are identical (4-EDIP 0.321"). This substitution is suitable for designs where current headroom is beneficial.

Q: Why is DF005M not listed as a substitute?

A: DF005M has a maximum peak reverse voltage of 50V, which does not meet the 600V requirement of the DB105. This part is not electrically compatible and cannot be substituted.

Q: What is the significance of the 0.300" vs. 0.321" package dimension difference?

A: DF06M uses a 0.300" package width compared to the standard 0.321" for DB105 and most alternatives. This minor dimensional difference may affect PCB layout compatibility. Verify board-level spacing before selecting DF06M as a substitute.

Q: Are there compliance differences between substitute options?

A: The original DB105 is RoHS non-compliant. All active substitutes (DB105-BP, DF05, DF06, DF06-G, DF206-G) are ROHS3 compliant. For new designs or manufacturing environments with RoHS requirements, these compliant alternatives are necessary.

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