DB107 Bridge Rectifier Equivalent & Substitute Parts

Part Overview

The DB107 is a single-phase bridge rectifier diode manufactured by Micro Commercial Co, rated for 1 kV peak reverse voltage and 1 A average rectified current. This component is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and procurement. The DB107 features a through-hole 4-EDIP package and operates across a temperature range of -55°C to 150°C. Substitute parts must maintain electrical compatibility while meeting current manufacturing and compliance standards.

Key Parameters

Parameter	Value
Diode Type	Single Phase
Technology	Standard
Voltage - Peak Reverse (Max)	1 kV
Current - Average Rectified (Io)	1 A
Voltage - Forward (Vf) (Max) @ If	1.1 V @ 1 A
Current - Reverse Leakage @ Vr	10 µA @ 1000 V
Operating Temperature Range	-55°C to 150°C (TJ)
Mounting Type	Through Hole
Package / Case	4-EDIP (0.321", 8.15mm)

Substitute Part Grouping Explanation

Substitution for the DB107 is determined by strict electrical and mechanical parameter matching. The primary substitution criteria are:

Voltage - Peak Reverse (Max): 1 kV minimum
Current - Average Rectified (Io): 1 A minimum
Diode Type: Single Phase
Mounting Type: Through Hole (for direct PCB compatibility)
Package compatibility: 4-EDIP form factor preferred for pin-for-pin replacement

Parts are grouped into three categories:

Direct Substitutes maintain identical electrical ratings and through-hole mounting with the same package footprint, differing only in packaging format or manufacturer.

Parametric Equivalents meet or exceed all electrical specifications but may have different package dimensions or mounting characteristics, requiring PCB layout verification.

Similar Parts exceed the DB107 specifications in voltage or current rating, providing design margin but requiring confirmation that higher ratings do not conflict with circuit design intent.

Parameter Comparison

Part Number	Manufacturer	Voltage - Peak Reverse (Max)	Current - Average Rectified (Io)	Vf (Max) @ If	Reverse Leakage @ Vr	Operating Temperature	Mounting Type	Package / Case	Product Status	RoHS Status
DB107	Micro Commercial Co	1 kV	1 A	1.1 V @ 1 A	10 µA @ 1000 V	-55°C to 150°C	Through Hole	4-EDIP (0.321", 8.15mm)	Obsolete	RoHS non-compliant
DB107-BP	Micro Commercial Co	1 kV	1 A	1.1 V @ 1 A	10 µA @ 1000 V	-55°C to 150°C	Through Hole	4-EDIP (0.321", 8.15mm)	Active	ROHS3 Compliant
DF10-G	Comchip Technology	1 kV	1 A	1.1 V @ 1 A	10 µA @ 1000 V	-55°C to 150°C	Through Hole	4-EDIP (0.321", 8.15mm)	Active	ROHS3 Compliant
DF210-G	Comchip Technology	1 kV	2 A	1.1 V @ 2 A	10 µA @ 1000 V	-55°C to 150°C	Through Hole	4-EDIP (0.321", 8.15mm)	Active	ROHS3 Compliant
DI1010_T0_00001	Panjit International Inc.	1 kV	1 A	1.1 V @ 1 A	5 µA @ 1000 V	-55°C to 150°C	Surface Mount	4-SMD, Gull Wing	Active	ROHS3 Compliant
DF005M	Fairchild Semiconductor	50 V	1 A	1.1 V @ 1 A	10 µA @ 50 V	-65°C to 150°C	Through Hole	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 to 150°C	Through Hole	4-EDIP (0.300", 7.62mm)	Obsolete	ROHS3 Compliant
DF10M	onsemi	1 kV	1.5 A	1.1 V @ 1 A	5 µA @ 1000 V	-55°C to 150°C	Through Hole	4-EDIP (0.300", 7.62mm)	Obsolete	ROHS3 Compliant
DB107 (MDD)	MDD	1 kV	1 A	1.1 V @ 1 A	10 µA @ 1000 V	-55°C to 150°C	Through Hole	4-EDIP (0.321", 8.15mm)	Active	RoHS Compliant

Engineering Selection Recommendations

Recommended Direct Substitute: DB107-BP

DB107-BP is the primary substitute for the obsolete DB107. Manufactured by Micro Commercial Co, it maintains identical electrical specifications and package dimensions. The part is currently active in production and ROHS3 compliant, addressing regulatory requirements. Packaging format differs (tube versus original), but electrical and mechanical compatibility is complete.

Alternative Direct Substitute: DF10-G

DF10-G from Comchip Technology provides equivalent electrical performance with identical package footprint and dimensions. This part is active and ROHS3 compliant. Selection between DB107-BP and DF10-G depends on supplier availability and procurement lead times.

Higher Current Capacity Option: DF210-G

DF210-G provides 2 A average rectified current while maintaining 1 kV voltage rating and identical package footprint. This part is suitable for designs requiring additional current margin. ROHS3 compliance and active production status support long-term availability.

Surface Mount Alternative: DI1010_T0_00001

DI1010_T0_00001 from Panjit International Inc. matches electrical specifications but uses surface mount technology (4-SMD, Gull Wing package). This part is appropriate only for designs with surface mount PCB layouts. ROHS3 compliance and active status confirm availability.

Lower Voltage Alternatives: DF005M and DF06M

DF005M (50 V) and DF06M (600 V) do not meet the 1 kV voltage requirement of the DB107 and are not suitable substitutes for applications requiring 1 kV rating. These parts are listed only for reference in lower-voltage circuit applications.

Parametric Equivalent: DB107 (MDD)

MDD manufactures a DB107 variant with identical electrical specifications and package dimensions. This part is active and RoHS compliant, providing an alternative source for the DB107 designation.

Frequently Asked Questions (FAQ)

Q: Can DB107-BP be used as a direct replacement for DB107?

A: Yes. DB107-BP maintains identical electrical ratings (1 kV, 1 A), forward voltage characteristics, reverse leakage specifications, and package footprint (4-EDIP, 0.321" × 8.15mm). The only difference is packaging format (tube). No circuit modifications are required.

Q: What is the difference between DB107-BP and DF10-G?

A: Both parts are electrically and mechanically equivalent to DB107, with identical voltage, current, and package specifications. The difference is manufacturer: DB107-BP is from Micro Commercial Co, while DF10-G is from Comchip Technology. Selection depends on supplier availability and procurement preferences.

Q: Can DF210-G replace DB107 in all applications?

A: DF210-G is electrically compatible with DB107 for voltage rating (1 kV) and package footprint. However, DF210-G is rated for 2 A average rectified current versus DB107's 1 A. This higher rating does not create incompatibility but should be confirmed against circuit design specifications to ensure no unintended effects from increased current capacity.

Q: Why is DI1010_T0_00001 listed as a substitute if it uses surface mount packaging?

A: DI1010_T0_00001 meets all electrical specifications of DB107 (1 kV, 1 A, identical forward voltage and leakage characteristics). However, it uses surface mount technology (4-SMD, Gull Wing) instead of through-hole mounting. This part is suitable only for PCB designs with surface mount capability and cannot be used in through-hole applications.

Q: Are DF005M and DF06M suitable substitutes?

A: No. DF005M is rated for only 50 V peak reverse voltage, and DF06M is rated for 600 V. Both fall below the DB107's 1 kV requirement. These parts are not suitable for applications requiring 1 kV voltage rating and are listed only for reference in lower-voltage designs.

Q: What is the significance of RoHS compliance in substitute selection?

A: The original DB107 is RoHS non-compliant. Recommended substitutes (DB107-BP, DF10-G, DF210-G, DI1010_T0_00001) are ROHS3 compliant, meeting current environmental and regulatory standards. For new designs or procurement requiring regulatory compliance, ROHS3-compliant parts are required.

Q: Can I use MDD's DB107 variant instead of the original Micro Commercial Co DB107?

A: Yes. MDD's DB107 maintains identical electrical specifications and package dimensions. It is currently active in production and RoHS compliant, making it a viable alternative source for the DB107 designation.

Q: What should I verify before selecting a substitute part?

A: Confirm that the substitute meets the following criteria: 1 kV minimum peak reverse voltage, 1 A minimum average rectified current, -55°C to 150°C operating temperature range, and appropriate mounting type (through-hole for standard PCB applications). Verify supplier availability and lead times for your procurement timeline.

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