DF1504M Bridge Rectifier Single Phase 400V 1.5A Equivalent & Substitute Parts

Part Overview

The DF1504M is a single-phase bridge rectifier manufactured by Diodes Incorporated, rated for 400 V peak reverse voltage and 1.5 A average rectified current. This component is classified as Obsolete, making identification of functionally equivalent alternatives necessary for ongoing design support and procurement planning. The DF1504M features a 4-EDIP (0.300", 7.62mm) through-hole package with DFM supplier designation and operates across a temperature range of -65°C to 150°C.

Key Parameters

Parameter	DF1504M Value
Manufacturer	Diodes Incorporated
Diode Type	Single Phase
Technology	Standard
Voltage - Peak Reverse (Max)	400 V
Current - Average Rectified (Io)	1.5 A
Voltage - Forward (Vf) (Max) @ If	1.1 V @ 1.5 A
Current - Reverse Leakage @ Vr	10 µA @ 400 V
Operating Temperature Range	-65°C ~ 150°C (TJ)
Mounting Type	Through Hole
Package / Case	4-EDIP (0.300", 7.62mm)
RoHS Status	ROHS3 Compliant
Product Status	Obsolete

Substitute Part Grouping Explanation

Substitution of the DF1504M is determined by the following electrical and mechanical parameters:

Primary Substitution Criteria:

Diode Type: Single Phase (required match)
Technology: Standard (required match)
Voltage - Peak Reverse (Max): 400 V or higher (equal or exceeding rating)
Current - Average Rectified (Io): 1.5 A or higher (equal or exceeding rating)
Mounting Type: Through Hole (required match)
Package compatibility: 4-EDIP form factor with similar pin spacing

Secondary Considerations:

Operating temperature range: -65°C to 150°C or equivalent
RoHS3 compliance status
Forward voltage characteristics at rated current

Substitute parts are grouped into two categories:

Category A - Direct Voltage/Current Match (400V, 1.5A): Parts meeting or exceeding both 400 V and 1.5 A ratings with compatible through-hole packaging.

Category B - Voltage-Rated Alternatives (400V, 1A): Parts rated for 400 V with 1 A current rating. These parts operate within the same voltage class but at reduced current capacity. Selection requires application-level current demand verification.

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
DF1504M	Diodes Incorporated	400 V	1.5 A	1.1 V @ 1.5 A	10 µA @ 400 V	-65°C ~ 150°C	4-EDIP (0.300", 7.62mm)	Obsolete	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
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
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
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
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
DF204-G	Comchip Technology	400 V	2 A	1.1 V @ 2 A	10 µA @ 400 V	-55°C ~ 150°C	4-EDIP (0.321", 8.15mm)	Active	ROHS3 Compliant

Engineering Selection Recommendations

Recommended Primary Substitute: DF204-G

The DF204-G (Comchip Technology) matches the DF1504M in voltage rating (400 V) and exceeds the current rating (2 A vs. 1.5 A). This part is Active status, ROHS3 compliant, and maintains through-hole mounting. The 4-EDIP package dimensions differ slightly (0.321" vs. 0.300"), requiring PCB layout verification for pin spacing compatibility.

Alternative Substitute: DF06M

The DF06M (onsemi) provides 600 V rating with 1.5 A current capacity, matching the DF1504M current specification. This part maintains the 0.300" package dimension of the original. However, DF06M is classified as Obsolete, limiting long-term procurement viability.

Voltage-Rated Alternatives: DB104-BP, DB105-BP, DB106-BP

These Micro Commercial Co parts provide 400 V, 600 V, and 800 V ratings respectively, all at 1 A current. DB105-BP and DB106-BP are Active status. These options are suitable only for applications where the 1.5 A current requirement can be reduced to 1 A operation. Package dimensions are 0.321" (8.15mm), requiring PCB verification.

Not Recommended: DB101-BP, DF005M

DB101-BP and DF005M are rated for 50 V maximum, which is insufficient for 400 V applications and represents a voltage downgrade incompatible with the DF1504M specification.

Frequently Asked Questions (FAQ)

Q: Can DB104-BP directly replace DF1504M in my circuit?

A: DB104-BP matches the 400 V voltage rating but is rated for 1 A instead of 1.5 A. Substitution is possible only if your application current demand does not exceed 1 A. The package dimensions differ (0.321" vs. 0.300"), requiring PCB layout verification for pin spacing compatibility.

Q: What is the difference between the 4-EDIP (0.300", 7.62mm) and 4-EDIP (0.321", 8.15mm) packages?

A: Both are 4-EDIP through-hole packages but with different pin spacing. The 0.300" dimension is the original DF1504M package pitch. The 0.321" dimension is used by Micro Commercial Co DB-series parts. PCB hole spacing must match the selected part's pin pitch for proper installation.

Q: Is DF06M a suitable replacement for DF1504M?

A: DF06M provides matching 1.5 A current and exceeds the voltage rating at 600 V. However, DF06M is Obsolete status, making it unsuitable for new procurement planning. DF204-G is preferred as an Active alternative.

Q: Why are DB101-BP and DF005M listed as substitutes if they cannot replace DF1504M?

A: These parts are listed in the provided substitute data but are not functionally equivalent to DF1504M. DB101-BP and DF005M are rated for 50 V maximum, which is insufficient for 400 V applications. These parts should not be selected for DF1504M replacement.

Q: Does DF204-G meet all compliance requirements of DF1504M?

A: DF204-G is ROHS3 compliant, matching the DF1504M compliance status. Both parts are rated for -55°C to 150°C operating temperature (DF1504M extends to -65°C). Verify compliance requirements specific to your application before final selection.

Q: What is the impact of different reverse leakage currents between DF1504M and substitute parts?

A: DF1504M specifies 10 µA @ 400 V reverse leakage. DF06M specifies 5 µA @ 600 V. Lower reverse leakage generally indicates better performance characteristics. This difference is not a limiting factor for substitution but should be noted for precision analog applications.

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