DB106 Bridge Rectifier Single Phase 800V 1A Equivalent & Substitute Parts

Part Overview

The DB106 is a single-phase bridge rectifier diode rated for 800V peak reverse voltage and 1A average rectified current, manufactured by Micro Commercial Co in a 4-EDIP (DB-1) through-hole package. The original DB106 from Micro Commercial Co is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and procurement. Active alternatives with identical or superior electrical ratings are available from multiple manufacturers.

Key Parameters

Parameter	Value
Diode Type	Single Phase Bridge Rectifier
Voltage - Peak Reverse (Max)	800 V
Current - Average Rectified (Io)	1 A
Voltage - Forward (Vf) (Max) @ If	1.1 V @ 1 A
Current - Reverse Leakage @ Vr	10 µA @ 800 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

Substitution for the DB106 is determined by the following electrical and mechanical parameters:

Primary Substitution Criteria:

Voltage - Peak Reverse (Max): Must be ≥ 800V
Current - Average Rectified (Io): Must be ≥ 1A
Voltage - Forward (Vf) (Max) @ If: Must be ≤ 1.1V @ rated current
Operating Temperature Range: Must encompass -55°C ~ 150°C
Mounting Type: Through Hole required
Package compatibility: 4-EDIP form factor with 0.321" (8.15mm) spacing

Direct Substitutes maintain identical electrical specifications and package dimensions, enabling pin-for-pin replacement.

Parametric Equivalents meet or exceed all electrical requirements but may have different manufacturers or minor package variations within the 4-EDIP family.

Similar Parts satisfy the core voltage and current requirements but may have different current ratings or package dimensions, requiring circuit validation before substitution.

Parameter Comparison

Part Number	Manufacturer	Voltage - Peak Reverse (Max)	Current - Average Rectified (Io)	Vf (Max) @ If	Reverse Leakage @ Vr	Operating Temperature	Package / Case	Product Status	RoHS Status
DB106	Micro Commercial Co	800 V	1 A	1.1 V @ 1 A	10 µA @ 800 V	-55°C ~ 150°C	4-EDIP (0.321", 8.15mm)	Obsolete	RoHS non-compliant
DB106-BP	Micro Commercial Co	800 V	1 A	1.1 V @ 1 A	10 µA @ 800 V	-55°C ~ 150°C	4-EDIP (0.321", 8.15mm)	Active	ROHS3 Compliant
DB106	SMC Diode Solutions	800 V	1 A	1.1 V @ 1 A	5 µA @ 800 V	-55°C ~ 150°C	4-EDIP (0.321", 8.15mm)	Active	ROHS3 Compliant
DF08-G	Comchip Technology	800 V	1 A	1.1 V @ 1 A	10 µA @ 800 V	-55°C ~ 150°C	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	-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
DF08M	onsemi	800 V	1.5 A	1.1 V @ 1 A	5 µA @ 800 V	-55°C ~ 150°C	4-EDIP (0.300", 7.62mm)	Obsolete	ROHS3 Compliant
DF208-G	Comchip Technology	800 V	2 A	1.1 V @ 2 A	10 µA @ 800 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

Engineering Selection Recommendations

Direct Pin-for-Pin Substitutes (Recommended for Immediate Replacement):

DB106-BP (Micro Commercial Co) is the primary direct substitute. It maintains identical electrical specifications and package dimensions as the original DB106, with the advantage of active product status and ROHS3 compliance. This part is suitable for direct PCB replacement without design modification.

DF08-G (Comchip Technology) provides equivalent electrical performance with identical package dimensions and active product status. ROHS3 compliance and established supply availability make this a viable alternative.

Parametric Equivalents (Suitable with Design Validation):

DB106 (SMC Diode Solutions) offers identical electrical specifications with improved reverse leakage characteristics (5 µA vs. 10 µA @ 800V). Active product status and ROHS3 compliance support long-term availability. Package compatibility is confirmed.

Higher Current Alternatives (Application-Dependent):

DF208-G (Comchip Technology) provides 800V rating with 2A current capacity, exceeding the 1A requirement. Identical package dimensions and active status enable substitution in applications requiring additional current margin. Forward voltage specification applies at 2A.

DF08M (onsemi) and DF06M (onsemi) offer higher current ratings (1.5A) but feature different package dimensions (0.300" vs. 0.321" spacing). These parts are obsolete and not recommended for new designs.

Lower Voltage Alternative (Voltage-Constrained Applications Only):

DF06 (HY Electronic) is rated for 600V, below the original 800V specification. This part is suitable only for applications where the circuit operates at ≤ 600V peak reverse voltage. Package dimensions match the original DB106.

DF005M (Fairchild Semiconductor) is rated for 50V and is not suitable as a general substitute due to insufficient voltage rating.

Frequently Asked Questions (FAQ)

Q: Can DB106-BP replace the original DB106 without any modifications?

A: Yes. DB106-BP maintains identical electrical specifications (800V, 1A, 1.1V forward voltage) and package dimensions (4-EDIP, 0.321" spacing). It is a direct pin-for-pin substitute requiring no circuit or PCB modifications. The primary difference is active product status and ROHS3 compliance.

Q: What is the difference between DB106-BP and DF08-G?

A: Both parts meet identical electrical specifications and package requirements. DB106-BP is manufactured by Micro Commercial Co, while DF08-G is from Comchip Technology. Both are active products with ROHS3 compliance. Selection may depend on supplier availability and procurement lead times.

Q: Can DF208-G be used as a substitute?

A: DF208-G is electrically compatible, providing 800V rating with 2A current capacity. The package dimensions are identical (4-EDIP, 0.321" spacing). The higher current rating provides additional design margin. Forward voltage specification is 1.1V @ 2A. This part is suitable for direct substitution.

Q: Why is DF06 listed as a substitute if it is only rated for 600V?

A: DF06 is included as a parametric equivalent for applications where the circuit operates at ≤ 600V peak reverse voltage. It is not a general substitute for the 800V-rated DB106. Circuit validation is required to confirm voltage compatibility before substitution.

Q: Are DF06M and DF08M suitable replacements?

A: DF06M and DF08M are obsolete products with different package dimensions (0.300" vs. 0.321" spacing). These parts are not recommended for new designs or ongoing procurement. Active alternatives with identical specifications are available.

Q: What does ROHS3 compliance mean for this part?

A: ROHS3 compliance indicates the part meets Restriction of Hazardous Substances Directive requirements, restricting lead and other hazardous materials. The original DB106 is RoHS non-compliant. Active substitutes (DB106-BP, DF08-G, DF208-G) are ROHS3 compliant, supporting regulatory requirements in many markets.

Q: Can DF005M be used as a substitute?

A: DF005M is not suitable as a general substitute. It is rated for only 50V peak reverse voltage, significantly below the 800V requirement of the original DB106. This part is suitable only for applications specifically designed for 50V operation.

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