DF15005ST-G Bridge Rectifier Equivalent & Substitute Parts

Part Overview

The DF15005ST-G is a single-phase bridge rectifier manufactured by Comchip Technology, rated for 50 V peak reverse voltage and 1.5 A average rectified current. This component is classified as obsolete, making equivalent and substitute parts necessary for ongoing production and maintenance applications. The part is housed in a 4-SMD, Gull Wing surface mount package and complies with RoHS3 and REACH regulations.

Key Parameters

Parameter	Value
Diode Type	Single Phase
Technology	Standard
Voltage - Peak Reverse (Max)	50 V
Current - Average Rectified (Io)	1.5 A
Voltage - Forward (Vf) (Max) @ If	1.1 V @ 1.5 A
Operating Temperature Range	-55°C ~ 150°C (TJ)
Mounting Type	Surface Mount
Package / Case	4-SMD, Gull Wing
RoHS Status	RoHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitute parts for the DF15005ST-G are qualified based on the following critical parameters:

Voltage - Peak Reverse (Max): 50 V (exact match required)
Current - Average Rectified (Io): 1.5 A (exact match required)
Diode Type: Single Phase (exact match required)
Package / Case: 4-SMD, Gull Wing (exact match required)
Mounting Type: Surface Mount (exact match required)
Operating Temperature Range: -55°C ~ 150°C (exact match required)

All substitute parts listed maintain these core electrical and mechanical specifications. Variations in reverse leakage current, forward voltage characteristics at different test conditions, and product status are noted but do not disqualify substitution when the primary parameters align.

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
DF15005ST-G	Comchip Technology	50 V	1.5 A	1.1 V @ 1.5 A	10 µA @ 50 V	-55°C ~ 150°C	4-SMD, Gull Wing	Obsolete	RoHS3 Compliant
DF15005S-G	Comchip Technology	50 V	1.5 A	1.1 V @ 1.5 A	5 µA @ 50 V	-55°C ~ 150°C	4-SMD, Gull Wing	Active	RoHS3 Compliant
DB151S	SMC Diode Solutions	50 V	1.5 A	1.1 V @ 1.5 A	5 µA @ 50 V	-55°C ~ 150°C	4-SMD, Gull Wing	Active	RoHS3 Compliant
DBLS151G RDG	Taiwan Semiconductor Corporation	50 V	1.5 A	1.1 V @ 1.5 A	2 µA @ 50 V	-55°C ~ 150°C	4-SMD, Gull Wing	Active	RoHS3 Compliant
DBLS151GHRDG	Taiwan Semiconductor Corporation	50 V	1.5 A	1.1 V @ 1.5 A	2 µA @ 50 V	-55°C ~ 150°C	4-SMD, Gull Wing	Active	RoHS3 Compliant
DF005S	onsemi	50 V	1.5 A	1.1 V @ 1 A	5 µA @ 50 V	-55°C ~ 150°C	4-SMD, Gull Wing	Not For New Designs	RoHS3 Compliant
DF15005S-E3/77	Vishay General Semiconductor - Diodes Division	50 V	1.5 A	1.1 V @ 1.5 A	5 µA @ 50 V	-55°C ~ 150°C	4-SMD, Gull Wing	Active	RoHS3 Compliant
DFL15005S-E3/77	Vishay General Semiconductor - Diodes Division	50 V	1.5 A	1.1 V @ 1.5 A	400 µA @ 30 V	-55°C ~ 150°C	4-SMD, Gull Wing	Active	RoHS3 Compliant

Engineering Selection Recommendations

Primary Recommendation: DF15005S-G

The DF15005S-G is the direct successor from Comchip Technology with active product status. It maintains identical electrical ratings and package specifications while offering improved reverse leakage characteristics (5 µA vs. 10 µA). This part is available in Tube packaging and represents the most direct replacement path.

Secondary Recommendations: DF15005S-E3/77 and DB151S

Both parts are active, maintain full electrical and mechanical compatibility, and are available in high inventory quantities. DF15005S-E3/77 is supplied by Vishay in Tape & Reel packaging, while DB151S is supplied by SMC Diode Solutions in the same format. Both exhibit identical electrical performance to DF15005S-G.

Automotive-Grade Alternative: DBLS151GHRDG

For applications requiring automotive qualification, DBLS151GHRDG from Taiwan Semiconductor Corporation carries AEC-Q101 certification and meets automotive-grade standards. This part offers superior reverse leakage performance (2 µA) and is actively produced.

Not Recommended for New Designs: DF005S

While DF005S maintains electrical compatibility, its product status is classified as "Not For New Designs." This designation indicates the manufacturer does not recommend this part for new circuit designs, though it remains available for legacy support.

Limited Substitution: DFL15005S-E3/77

DFL15005S-E3/77 exhibits significantly higher reverse leakage current (400 µA @ 30 V) compared to the original specification (10 µA @ 50 V). This characteristic difference may impact circuit performance in applications sensitive to leakage current and should be evaluated against specific design requirements.

Frequently Asked Questions (FAQ)

Q: Can DF15005S-G directly replace DF15005ST-G?

A: Yes. Both parts share identical electrical ratings (50 V, 1.5 A), the same 4-SMD Gull Wing package, and equivalent operating temperature ranges. The primary difference is product status: DF15005ST-G is obsolete while DF15005S-G is active. Packaging differs (Tube vs. unspecified), but this does not affect electrical compatibility.

Q: What is the significance of reverse leakage current variations among substitutes?

A: Reverse leakage current indicates the small current that flows through the diode when reverse-biased. Lower leakage (2 µA in DBLS151G RDG) represents improved device quality and reduced power dissipation in standby conditions. Higher leakage (400 µA in DFL15005S-E3/77) may require circuit design consideration in sensitive applications. The original DF15005ST-G specifies 10 µA, placing it in the mid-range of available options.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All listed substitute parts carry RoHS3 compliance certification, ensuring compatibility with environmental and regulatory requirements.

Q: What packaging options are available for substitutes?

A: Substitute parts are supplied in Tube (DF15005S-G), Tape & Reel (DB151S, DF15005S-E3/77, DFL15005S-E3/77), and Cut Tape & Digi-Reel (DF005S) formats. All maintain the same 4-SMD Gull Wing component package, ensuring PCB footprint compatibility regardless of supply packaging.

Q: Which substitute offers the best performance improvement?

A: DBLS151GHRDG and DBLS151G RDG both offer superior reverse leakage performance (2 µA) compared to the original specification (10 µA). DBLS151GHRDG additionally carries AEC-Q101 automotive qualification for applications requiring automotive-grade components.

Q: Is DF005S suitable for new designs?

A: No. DF005S carries a "Not For New Designs" product status designation. While electrically compatible, this classification indicates the manufacturer recommends against its use in new circuit designs. It remains available for legacy system support and maintenance.

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