DF01MA-E3/45 Equivalent & Substitute Parts

Part Overview

The DF01MA-E3/45 is a single-phase bridge rectifier diode manufactured by Vishay General Semiconductor - Diodes Division. This component operates at 100 V peak reverse voltage with 1 A average rectified current and is housed in a 4-EDIP through-hole package. The part is currently active in production with ROHS3 compliance and unlimited moisture sensitivity rating.

Equivalent and substitute parts are identified based on matching electrical performance parameters and mechanical compatibility within the through-hole bridge rectifier category. Substitutes may vary in voltage rating, leakage current specifications, and package dimensions while maintaining functional equivalence for specific application 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	5 µA @ 100 V
Operating Temperature Range	-55°C ~ 150°C (TJ)
Mounting Type	Through Hole
Package / Case	4-EDIP (0.300", 7.62mm)
Diode Type	Single Phase
Technology	Standard

Substitute Part Grouping Explanation

Substitution logic for the DF01MA-E3/45 is based on the following criteria:

Parametric Equivalents maintain identical electrical specifications: 100 V peak reverse voltage, 1 A average rectified current, 1.1 V forward voltage drop at 1 A, and -55°C to 150°C operating temperature range. These parts are interchangeable in applications where the exact electrical performance is required.

Manufacturer Recommended Substitutes from Micro Commercial Co (DB-series) and Fairchild Semiconductor (DF-series) provide functional equivalence with allowable variations in reverse leakage current (up to 10 µA) and package dimensions (4-EDIP variants with 0.321" or 0.300" spacing). These substitutes are selected based on matching 1 A current rating and compatible through-hole mounting.

Voltage-Rated Alternatives (DB101-BP through DB107-BP) extend the voltage range from 50 V to 1 kV while maintaining 1 A current capacity. Selection depends on application voltage requirements and is not interchangeable without circuit analysis.

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
DF01MA-E3/45	Vishay General Semiconductor	100 V	1 A	1.1 V @ 1 A	5 µA @ 100 V	-55°C ~ 150°C	4-EDIP (0.300", 7.62mm)	Active
DF01M-E3/45	Vishay General Semiconductor	100 V	1 A	1.1 V @ 1 A	5 µA @ 100 V	-55°C ~ 150°C	4-EDIP (0.300", 7.62mm)	Active
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
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
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
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
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
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
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
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
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

Engineering Selection Recommendations

Direct Replacement (100 V Rating): DF01M-E3/45 and DF01M are the primary substitutes for the DF01MA-E3/45. DF01M-E3/45 is a parametric equivalent from Vishay with identical specifications. DF01M from Fairchild Semiconductor maintains the same voltage and current ratings with extended operating temperature range (-65°C to 150°C) and is currently active in production.

Package Compatibility Consideration: DB102-BP from Micro Commercial Co matches the 100 V / 1 A electrical specification but uses a 4-EDIP package with 0.321" spacing versus the 0.300" spacing of the main part. This package dimension difference requires PCB layout verification before substitution. DB102-BP is marked "Not For New Designs."

Voltage-Rated Alternatives: When application voltage requirements differ from 100 V, the DB-series provides options: DB101-BP (50 V), DB103-BP (200 V), DB104-BP (400 V), DB105-BP (600 V), DB106-BP (800 V), and DB107-BP (1 kV). All maintain 1 A current capacity and through-hole mounting. DB105-BP, DB106-BP, and DB107-BP are active products; others are marked "Not For New Designs."

Lower Voltage Alternative: DF005M from Fairchild Semiconductor operates at 50 V with 1 A capacity and maintains the 0.300" package spacing of the main part. This option is suitable only for applications with 50 V or lower voltage requirements.

Compliance Status: All listed substitutes maintain ROHS3 compliance and unlimited moisture sensitivity rating (MSL 1). Selection should prioritize active production status parts for new designs.

Frequently Asked Questions (FAQ)

Q: Can DB102-BP be used as a direct replacement for DF01MA-E3/45?

A: DB102-BP matches the electrical specifications (100 V, 1 A) but has a different package footprint (0.321" versus 0.300" spacing). PCB layout compatibility must be verified before substitution. Additionally, DB102-BP is marked "Not For New Designs."

Q: What is the difference between the 5 µA and 10 µA reverse leakage current specifications?

A: The DF01MA-E3/45 specifies 5 µA reverse leakage at 100 V, while most substitute parts specify 10 µA. Both values are within standard bridge rectifier performance ranges. The higher leakage in substitutes does not affect functionality in typical applications but may impact circuits with extremely low leakage requirements.

Q: Can I use DB105-BP or DB106-BP if my circuit only requires 100 V?

A: DB105-BP (600 V) and DB106-BP (800 V) are electrically compatible with 100 V applications since they are rated for higher voltages. However, they are not recommended for new designs unless the higher voltage rating is specifically required, as they represent over-specification and potential cost inefficiency.

Q: Are DF01M and DF01M-E3/45 interchangeable?

A: Yes. Both are Vishay products with identical electrical specifications (100 V, 1 A) and the same 4-EDIP package. DF01M-E3/45 includes the tape-and-reel packaging designation (-E3/45), while DF01M is the base part number. They are functionally equivalent.

Q: What is the significance of the "Not For New Designs" status on DB-series parts?

A: Parts marked "Not For New Designs" are in mature or declining production phases. While they remain available and functional, Micro Commercial Co recommends using active alternatives for new product development. For legacy system maintenance or repair, these parts remain valid substitutes.

Q: Does the extended temperature range of DF01M (-65°C to 150°C) versus DF01MA-E3/45 (-55°C to 150°C) affect compatibility?

A: No. The extended lower temperature limit of DF01M provides additional capability without affecting operation within the -55°C to 150°C range of the original part. This makes DF01M a suitable substitute for all applications where DF01MA-E3/45 is specified.

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