DF1504SP-G Bridge Rectifier Equivalent & Substitute Parts

Part Overview

The DF1504SP-G is a single-phase bridge rectifier manufactured by Comchip Technology, rated for 400 V peak reverse voltage and 1.5 A average rectified current. This component is classified as obsolete, necessitating identification of active equivalent and substitute parts for ongoing design requirements and procurement needs. The part is housed in a 4-SMD, Gull Wing surface mount package and operates across a temperature range of -55°C to 150°C.

Substiute Parts

DF1504SP-G

Comchip TechnologyIn Stock: 834DF1504SP-G Datasheet

Current PartRFQ

DF1504S-G

Comchip TechnologyIn Stock: 1001DF1504S-G Datasheet

MFR RecommendedRFQ

DBLS154G C1G

Taiwan Semiconductor CorporationIn Stock: 1194DBLS154G C1G Datasheet

Parametric EquivalentRFQ

DBLS154GHC1G

Taiwan Semiconductor CorporationIn Stock: 942DBLS154GHC1G Datasheet

Parametric EquivalentRFQ

DF1504S-E3/45

Vishay General Semiconductor - Diodes DivisionIn Stock: 685DF1504S-E3/45 Datasheet

Parametric EquivalentRFQ

DFL1504S-E3/45

Vishay General Semiconductor - Diodes DivisionIn Stock: 836DFL1504S-E3/45 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the DF1504SP-G is determined by equivalence across the following critical parameters: single-phase diode type, standard technology classification, 400 V peak reverse voltage rating, 1.5 A average rectified current capacity, 1.1 V maximum forward voltage at 1.5 A, surface mount mounting type, and 4-SMD Gull Wing package configuration. All identified substitute parts maintain these core electrical and mechanical specifications, ensuring functional interchangeability within the original application circuit.

Reverse leakage current specifications vary among substitutes but remain within acceptable operational limits. Operating temperature range, RoHS3 compliance, and MSL 1 (Unlimited) moisture sensitivity are consistent across all active alternatives. Substitute parts are grouped into two categories: manufacturer-recommended alternatives from Comchip Technology and parametric equivalents from alternative manufacturers (Vishay General Semiconductor and Taiwan Semiconductor Corporation).

Parameter Comparison

Engineering Selection Recommendations

DF1504S-G (Comchip Technology) is the manufacturer-recommended direct replacement for the obsolete DF1504SP-G. This part maintains identical electrical specifications and package configuration while offering active product status and ROHS3 compliance. The primary distinction is a slightly elevated reverse leakage current specification (10 µA versus 5 µA at 400 V), which remains within acceptable operational parameters for standard bridge rectifier applications.

DF1504S-E3/45 and DFL1504S-E3/45 (Vishay General Semiconductor) are parametric equivalents supplied in tube packaging. Both parts match the electrical specifications of the original component, including the 5 µA reverse leakage current rating. These alternatives are suitable for applications requiring Vishay component qualification or supply chain diversification.

DBLS154G C1G and DBLS154GHC1G (Taiwan Semiconductor Corporation) are parametric equivalents offering superior reverse leakage current performance (2 µA at 400 V). The DBLS154GHC1G variant includes automotive-grade qualification to AEC-Q101 standard, making it appropriate for automotive and high-reliability applications requiring enhanced component traceability and qualification documentation.

Selection among active alternatives should be based on supply chain requirements, packaging preferences, and application-specific compliance mandates. All identified substitutes maintain functional equivalence across critical electrical and mechanical parameters.

Frequently Asked Questions (FAQ)

Q: Can DF1504S-G directly replace DF1504SP-G in existing designs?

A: Yes. DF1504S-G is the active manufacturer-recommended substitute for the obsolete DF1504SP-G. Both parts share identical electrical ratings (400 V, 1.5 A), forward voltage characteristics (1.1 V @ 1.5 A), and 4-SMD Gull Wing package configuration. The primary difference is reverse leakage current specification (10 µA versus 5 µA), which does not affect functional compatibility in standard bridge rectifier applications.

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

A: Reverse leakage current specifications vary across the substitute parts: DF1504SP-G and DF1504S-E3/45 and DFL1504S-E3/45 specify 5 µA at 400 V, DF1504S-G specifies 10 µA at 400 V, and DBLS154G C1G and DBLS154GHC1G specify 2 µA at 400 V. These variations reflect different manufacturing processes and quality levels. All values remain within acceptable limits for single-phase bridge rectifier operation. Applications with stringent leakage requirements should select parts with lower leakage specifications.

Q: Are all substitute parts available in the same packaging format?

A: All identified substitutes utilize the same 4-SMD, Gull Wing package configuration, ensuring mechanical compatibility with existing PCB layouts and assembly processes. Packaging format (tube versus other configurations) differs among suppliers but does not affect component functionality or board-level integration.

Q: Which substitute is recommended for automotive applications?

A: DBLS154GHC1G (Taiwan Semiconductor Corporation) is qualified to AEC-Q101 automotive standard and carries automotive-grade designation. This part is appropriate for automotive and high-reliability applications requiring formal automotive qualification documentation and enhanced component traceability.

Q: Are all substitutes RoHS3 compliant?

A: All active substitute parts (DF1504S-G, DBLS154G C1G, DBLS154GHC1G, DF1504S-E3/45, and DFL1504S-E3/45) are ROHS3 compliant. The original DF1504SP-G does not specify RoHS status due to its obsolete classification.

Q: What is the MSL rating for these bridge rectifier components?

A: All active substitute parts carry MSL 1 (Unlimited) moisture sensitivity level rating, indicating no moisture sensitivity restrictions for storage, handling, or assembly processes.