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

Part Overview

The DB102 is a single-phase bridge rectifier diode rated for 100V peak reverse voltage and 1A average rectified current, manufactured by Micro Commercial Co in a 4-EDIP (DB-1) through-hole package. The main part is classified as obsolete, making equivalent and substitute parts necessary for ongoing production and maintenance applications. Alternative parts must maintain electrical compatibility across voltage, current, and thermal specifications while accommodating different packaging and compliance requirements.

Key Parameters

Parameter	Value
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)
Diode Type	Single Phase
Technology	Standard

Substitute Part Grouping Explanation

Substitute parts for the DB102 are classified into three categories based on electrical and mechanical compatibility:

Direct Substitutes (Identical Electrical Parameters) Parts meeting all key electrical parameters: 100V peak reverse voltage, 1A average rectified current, 1.1V forward voltage at 1A, and 10µA reverse leakage at 100V. These parts differ only in packaging format (tube vs. bulk), manufacturer, or RoHS compliance status. Package dimensions remain within the 4-EDIP form factor (0.300" to 0.321" width, 7.62mm to 8.15mm length).

Parametric Equivalents (Matching Electrical Ratings with Minor Variations) Parts with identical voltage and current ratings but differing in reverse leakage current specifications or package dimensions. These maintain functional compatibility for standard applications while offering alternative sourcing options.

Similar Parts (Higher Voltage or Current Ratings) Parts exceeding the DB102 specifications in voltage or current capacity. These provide upward compatibility for applications requiring enhanced performance margins but are not direct replacements due to different electrical characteristics.

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	RoHS Status
DB102	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)	Obsolete	RoHS non-compliant
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	ROHS3 Compliant
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	ROHS3 Compliant
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	ROHS3 Compliant
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	ROHS3 Compliant
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	ROHS3 Compliant
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	Not specified
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
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 Direct Replacement (Identical Electrical Performance)

DB102-BP (Micro Commercial Co) and DF01-G (Comchip Technology) provide direct electrical equivalence to the original DB102. Both maintain 100V peak reverse voltage, 1A average rectified current, and identical forward voltage characteristics. DB102-BP carries ROHS3 compliance and is available in tube packaging. DF01-G is active in production with ROHS3 compliance and identical package dimensions. Both are suitable for applications requiring no design modification.

For Enhanced Compliance and Active Production

DB102 (SMC Diode Solutions) and DF02 (SMC Diode Solutions) offer active product status with ROHS3 compliance. Both maintain electrical equivalence with improved reverse leakage specifications (5µA vs. 10µA @ 100V), providing superior performance margins. These parts are recommended for new designs and ongoing production where compliance certification is required.

For Higher Current Applications

DF201-G (Comchip Technology) provides 2A average rectified current while maintaining 100V peak reverse voltage and identical package dimensions. This part is suitable for applications requiring increased current capacity without voltage derating.

For Extended Temperature Range

DF01M (Fairchild Semiconductor) extends the operating temperature range to -65°C ~ 150°C while maintaining 100V/1A electrical ratings. Package dimensions are slightly reduced (0.300" vs. 0.321" width). This part is appropriate for applications requiring enhanced low-temperature performance.

Not Recommended for Direct Substitution

DF005M (Fairchild Semiconductor) is rated for 50V peak reverse voltage, below the DB102 specification. This part is suitable only for applications with lower voltage requirements.

DF06M (onsemi) is rated for 600V peak reverse voltage and 1.5A current, significantly exceeding DB102 specifications. This part is suitable only for applications requiring higher voltage and current ratings.

Frequently Asked Questions (FAQ)

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

A: Yes. DB102-BP maintains identical electrical parameters: 100V peak reverse voltage, 1A average rectified current, 1.1V forward voltage at 1A, and 10µA reverse leakage at 100V. The primary difference is packaging format (tube vs. original) and ROHS3 compliance status. No circuit modification is required.

Q: What is the difference between DB102 (Micro Commercial Co) and DB102 (SMC Diode Solutions)?

A: Both parts share identical voltage and current ratings (100V/1A). The SMC Diode Solutions version offers improved reverse leakage specifications (5µA vs. 10µA @ 100V) and active product status with ROHS3 compliance. The SMC version is recommended for new designs.

Q: Can DF201-G replace DB102 in existing applications?

A: DF201-G is electrically compatible with DB102 for voltage and temperature specifications. However, DF201-G is rated for 2A average rectified current compared to DB102's 1A rating. This higher current rating does not prevent substitution but represents a design change. Package dimensions are identical (0.321", 8.15mm).

Q: Are there package dimension differences between substitute parts?

A: Most substitute parts use the 4-EDIP package form factor. Fairchild Semiconductor parts (DF01M, DF005M) have slightly reduced width (0.300" vs. 0.321") and length (7.62mm vs. 8.15mm). These dimensional differences may affect PCB layout compatibility. Verify footprint dimensions before substitution.

Q: Which substitute part offers the best compliance certification?

A: DB102-BP, DF01-G, DF02, and DF201-G all carry ROHS3 compliance certification. DB102 (SMC Diode Solutions) and DF02 (SMC Diode Solutions) additionally specify REACH compliance status. Select based on specific regulatory requirements for your application.

Q: Can DF005M be used in place of DB102?

A: DF005M is not suitable as a direct replacement. It is rated for 50V peak reverse voltage, which is below the DB102's 100V specification. Use DF005M only in applications with maximum voltage requirements of 50V or lower.

Q: What is the advantage of using DF01M over DB102?

A: DF01M extends the operating temperature range to -65°C ~ 150°C compared to DB102's -55°C ~ 150°C, providing enhanced low-temperature performance. Electrical ratings remain identical at 100V/1A. Package dimensions are slightly reduced (0.300" width, 7.62mm length).

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