DB102-BP Bridge Rectifier Single Phase 100V 1A Equivalent & Substitute Parts

Part Overview

The DB102-BP is a single-phase bridge rectifier diode manufactured by Micro Commercial Co, rated for 100V peak reverse voltage and 1A average rectified current. This component is classified as "Not For New Designs," indicating it has reached end-of-life status. Finding equivalent and substitute parts is necessary to maintain design continuity, ensure supply chain availability, and support legacy system maintenance or redesign initiatives.

Key Parameters

Parameter	Value
Diode Type	Single Phase
Voltage - Peak Reverse (Max)	100 V
Current - Average Rectified (Io)	1 A
Voltage - Forward (Vf) (Max) @ If	1.1 V @ 1 A
Current - Reverse Leakage @ Vr	10 µA @ 100 V
Operating Temperature Range	-55°C ~ 150°C (TJ)
Mounting Type	Through Hole
Package / Case	4-EDIP (0.321", 8.15mm)
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution for the DB102-BP is determined by the following critical parameters:

Voltage Rating: Peak reverse voltage must be ≥100V to ensure safe operation under maximum input conditions
Current Rating: Average rectified current must be ≥1A to handle the specified load
Forward Voltage Drop: Must not exceed 1.1V @ rated current to maintain circuit efficiency and thermal performance
Reverse Leakage: Must remain within acceptable limits to prevent circuit malfunction
Operating Temperature Range: Must encompass -55°C to 150°C to ensure reliability across the full operating envelope
Mounting Type: Through-hole configuration required for PCB compatibility
Package Dimensions: Physical footprint compatibility is essential for direct board-level substitution

Substitute parts are grouped into two categories:

Parametric Equivalents (identical electrical and mechanical specifications): DB102, DF01-G, DF02

Functional Substitutes (meet or exceed electrical requirements with compatible packaging): DF01M, DF201-G

Non-Compatible Parts (exceed specifications or have incompatible packaging): DF005M (50V rating insufficient), DF06M (600V/1.5A exceeds requirements, obsolete status)

Parameter Comparison

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
DB102-BP	Micro Commercial Co	100 V	1 A	1.1 V @ 1 A	10 µA @ 100 V	-55°C ~ 150°C	4-EDIP (0.321", 8.15mm)	Not For New Designs
DB102	SMC Diode Solutions	100 V	1 A	1.1 V @ 1 A	5 µA @ 100 V	-55°C ~ 150°C	4-EDIP (0.321", 8.15mm)	Active
DF01-G	Comchip Technology	100 V	1 A	1.1 V @ 1 A	10 µA @ 100 V	-55°C ~ 150°C	4-EDIP (0.321", 8.15mm)	Active
DF02	SMC Diode Solutions	100 V	1 A	1.1 V @ 1 A	5 µA @ 100 V	-55°C ~ 150°C	4-EDIP (0.321", 8.15mm)	Active
DF01M	Fairchild Semiconductor	100 V	1 A	1.1 V @ 1 A	10 µA @ 100 V	-65°C ~ 150°C	4-EDIP (0.300", 7.62mm)	Active
DF201-G	Comchip Technology	100 V	2 A	1.1 V @ 2 A	10 µA @ 100 V	-55°C ~ 150°C	4-EDIP (0.321", 8.15mm)	Active
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
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

Engineering Selection Recommendations

Recommended Direct Substitutes (Highest Compatibility)

DB102 (SMC Diode Solutions) and DF02 (SMC Diode Solutions) are the preferred substitutes. Both maintain identical electrical specifications to the DB102-BP, feature the same package dimensions (4-EDIP 0.321", 8.15mm), and carry Active product status. These parts require no circuit redesign and support direct board-level replacement. Both are ROHS3 compliant.

DF01-G (Comchip Technology) is an equivalent alternative with Active status and identical electrical performance. It maintains the same package footprint and operating temperature range as the original part.

Compatible Functional Substitutes

DF01M (Fairchild Semiconductor) meets all electrical requirements with an extended lower operating temperature limit (-65°C vs. -55°C). The package footprint differs slightly (0.300" vs. 0.321"), requiring mechanical verification for board-level compatibility. Active product status ensures supply availability.

DF201-G (Comchip Technology) provides higher current capacity (2A vs. 1A) while maintaining 100V voltage rating and identical package dimensions. This part is suitable for applications requiring additional current margin. Active status and ROHS3 compliance are confirmed.

Non-Compatible Parts

DF005M (Fairchild Semiconductor) has insufficient voltage rating (50V vs. 100V required) and is unsuitable for this application.

DF06M (onsemi) is classified as Obsolete and exceeds specifications (600V/1.5A), making it inappropriate for direct substitution despite electrical compatibility.

Frequently Asked Questions (FAQ)

Q: Can DF01M be used as a direct replacement for DB102-BP?

A: DF01M meets all electrical specifications and operating temperature requirements. However, the package footprint differs (0.300" vs. 0.321"), requiring mechanical verification to confirm PCB hole spacing compatibility before implementation.

Q: Why is DF005M not recommended as a substitute?

A: DF005M has a maximum peak reverse voltage rating of 50V, which is insufficient for the 100V requirement of the DB102-BP. Using an underrated component creates risk of diode failure under normal operating conditions.

Q: What is the advantage of using DF201-G over DB102?

A: DF201-G provides double the current capacity (2A vs. 1A) while maintaining the same 100V voltage rating and package dimensions. This offers additional design margin for applications approaching the 1A limit. Both parts are Active and ROHS3 compliant.

Q: Are all recommended substitutes ROHS3 compliant?

A: DB102, DF01-G, DF02, and DF201-G are confirmed ROHS3 compliant. DF01M carries ROHS3 compliance. Compliance documentation should be verified with the supplier for the specific manufacturing lot.

Q: Can DF06M replace DB102-BP?

A: DF06M is classified as Obsolete and should not be selected for new applications or redesigns. Although it exceeds electrical specifications, its end-of-life status creates supply chain risk and eliminates long-term availability assurance.

Q: What is the difference between DB102 and DF02?

A: Both parts are electrically equivalent with identical voltage and current ratings. DB102 is manufactured by SMC Diode Solutions, while DF02 is also from SMC Diode Solutions. Both maintain the same package footprint and operating temperature range. Selection between them depends on supplier availability and lead time.

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