DF02M/45 Bridge Rectifier Diode – Equivalent & Substitute Parts

Part Overview

The DF02M/45 is a single-phase bridge rectifier diode manufactured by Vishay General Semiconductor - Diodes Division, rated for 200 V peak reverse voltage and 1 A average rectified current. This component is classified as obsolete, making identification of functionally equivalent alternatives necessary for ongoing design support and procurement continuity. The part operates across a temperature range of -55°C to 150°C and is housed in a 4-EDIP through-hole package (0.300", 7.62mm).

Key Parameters

Parameter	Value
Diode Type	Single Phase
Technology	Standard
Voltage - Peak Reverse (Max)	200 V
Current - Average Rectified (Io)	1 A
Voltage - Forward (Vf) (Max) @ If	1.1 V @ 1 A
Current - Reverse Leakage @ Vr	5 µA @ 200 V
Operating Temperature	-55°C ~ 150°C (TJ)
Mounting Type	Through Hole
Package / Case	4-EDIP (0.300", 7.62mm)
RoHS Status	RoHS non-compliant

Substitute Part Grouping Explanation

Substitution of the DF02M/45 is determined by the following electrical and mechanical parameters:

Primary Substitution Criteria:

Voltage - Peak Reverse (Max): 200 V minimum
Current - Average Rectified (Io): 1 A minimum
Diode Type: Single Phase
Technology: Standard
Mounting Type: Through Hole
Package compatibility: 4-EDIP form factor

Substitution Logic: Parts meeting or exceeding the 200 V / 1 A rating with identical through-hole mounting and compatible package dimensions qualify as direct substitutes. Parts with higher voltage ratings (400 V, 600 V, 800 V, 1 kV) are electrically compatible but represent over-specification. Parts with lower voltage ratings do not meet the minimum electrical requirements and are not suitable substitutes.

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
DF02M/45	Vishay General Semiconductor	200 V	1 A	1.1 V @ 1 A	5 µA @ 200 V	-55°C ~ 150°C	4-EDIP (0.300", 7.62mm)	Obsolete	RoHS non-compliant
DF02M-E3/45	Vishay General Semiconductor	200 V	1 A	1.1 V @ 1 A	5 µA @ 200 V	-55°C ~ 150°C	4-EDIP (0.300", 7.62mm)	Active	ROHS3 Compliant
DF02M	onsemi	200 V	1.5 A	1.1 V @ 1 A	5 µA @ 200 V	-55°C ~ 150°C	4-EDIP (0.300", 7.62mm)	Obsolete	ROHS3 Compliant
DB103-BP	Micro Commercial Co	200 V	1 A	1.1 V @ 1 A	10 µA @ 200 V	-55°C ~ 150°C	4-EDIP (0.321", 8.15mm)	Not For New Designs	ROHS3 Compliant
DB101-BP	Micro Commercial Co	50 V	1 A	1.1 V @ 1 A	10 µA @ 50 V	-55°C ~ 150°C	4-EDIP (0.321", 8.15mm)	Not For New Designs	ROHS3 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
DB104-BP	Micro Commercial Co	400 V	1 A	1.1 V @ 1 A	10 µA @ 400 V	-55°C ~ 150°C	4-EDIP (0.321", 8.15mm)	Not For New Designs	ROHS3 Compliant
DB105-BP	Micro Commercial Co	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
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
DB107-BP	Micro Commercial Co	1 kV	1 A	1.1 V @ 1 A	10 µA @ 1000 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 Equivalent (Recommended for New Designs): DF02M-E3/45 is the primary substitute for DF02M/45. Both parts share identical electrical specifications (200 V, 1 A) and package dimensions (4-EDIP 0.300", 7.62mm). DF02M-E3/45 is active in production and ROHS3 compliant, addressing the obsolescence and compliance limitations of the original part.

Functionally Compatible Alternatives: DB103-BP (Micro Commercial Co) meets the 200 V / 1 A electrical requirements with identical forward voltage characteristics. Package dimensions differ slightly (0.321" vs. 0.300"), requiring PCB layout verification. DB103-BP is ROHS3 compliant but classified as Not For New Designs.

DF02M (onsemi) provides 200 V / 1.5 A capability in the same 4-EDIP (0.300", 7.62mm) package, offering higher current capacity. This part is obsolete but ROHS3 compliant.

Over-Specification Alternatives: DB104-BP, DB105-BP, DB106-BP, and DB107-BP provide voltage ratings of 400 V, 600 V, 800 V, and 1 kV respectively, all at 1 A current. These parts are electrically compatible but represent over-specification for 200 V applications. DB105-BP and DB106-BP are active in production and ROHS3 compliant.

Unsuitable Alternatives: DB101-BP, DB102-BP, and DF005M have voltage ratings below 200 V (50 V, 100 V, and 50 V respectively) and do not meet the minimum electrical requirements for direct substitution.

Frequently Asked Questions (FAQ)

Q: Can DF02M-E3/45 be used as a direct replacement for DF02M/45? A: Yes. Both parts are rated 200 V / 1 A with identical forward voltage (1.1 V @ 1 A) and package dimensions (4-EDIP 0.300", 7.62mm). DF02M-E3/45 is the active production equivalent and is ROHS3 compliant.

Q: What is the difference between DF02M/45 and DB103-BP? A: Both are rated 200 V / 1 A with matching forward voltage. The primary difference is package size: DF02M/45 uses 4-EDIP (0.300", 7.62mm) while DB103-BP uses 4-EDIP (0.321", 8.15mm). PCB layout must accommodate the larger footprint of DB103-BP.

Q: Can higher voltage-rated parts like DB105-BP or DB106-BP replace DF02M/45? A: Electrically, yes. DB105-BP (600 V) and DB106-BP (800 V) are backward compatible with 200 V applications. However, they represent over-specification and may increase component cost. Use only if higher voltage capability is required for future design flexibility.

Q: Why is DF02M (onsemi) listed as a substitute if it is obsolete? A: DF02M is included because it meets the electrical requirements (200 V / 1.5 A) and shares the same package footprint (4-EDIP 0.300", 7.62mm). However, as an obsolete part, it should not be selected for new designs. DF02M-E3/45 is the preferred active alternative.

Q: Are DB101-BP, DB102-BP, and DF005M suitable replacements? A: No. These parts have voltage ratings of 50 V or 100 V, which fall below the 200 V requirement of DF02M/45. They are not electrically compatible for this application.

Q: What compliance considerations apply to substitute selection? A: DF02M/45 is RoHS non-compliant. For new designs, DF02M-E3/45 is recommended as it is ROHS3 compliant. Alternative parts from Micro Commercial Co (DB series) and Fairchild Semiconductor (DF005M) are also ROHS3 compliant, supporting modern regulatory requirements.

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