CDSPB40K-HF Bridge Rectifier Equivalent & Substitute Parts

Part Overview

The CDSPB40K-HF is a single-phase bridge rectifier manufactured by Comchip Technology, rated for 800 V peak reverse voltage with 4 A average rectified current. This component is classified as obsolete, which necessitates identification of functionally equivalent alternatives for ongoing design support and procurement continuity. The part is housed in a 4-SMD surface mount package and operates across a temperature range of -55°C to 150°C.

Substiute Parts

CDSPB40K-HF

Comchip TechnologyIn Stock: 714CDSPB40K-HF Datasheet

Current PartRFQ

CSPB40K-HF

Comchip TechnologyIn Stock: 805CSPB40K-HF Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the CDSPB40K-HF is determined by electrical and mechanical parameter equivalence within the bridge rectifier category. The critical parameters governing substitution are:

• Voltage Rating: Peak reverse voltage must equal or exceed 800 V
• Current Rating: Average rectified current must equal or exceed 4 A
• Forward Voltage Drop: Maximum forward voltage at rated current must not exceed 1 V @ 4 A
• Reverse Leakage: Maximum reverse leakage current must not exceed 1 µA @ 800 V
• Package Type: Surface mount 4-SMD configuration required
• Temperature Range: Operating range must encompass -55°C to 150°C

The substitute part CSPB40K-HF meets all electrical and mechanical requirements for direct substitution. Both parts are manufactured by Comchip Technology within the Super Planar™ series and share identical electrical specifications.

Parameter Comparison

Engineering Selection Recommendations

The CSPB40K-HF is the direct substitute for the obsolete CDSPB40K-HF. Both components are manufactured by Comchip Technology and share identical electrical specifications for voltage, current, and thermal operating range. The substitute part carries Active product status, ensuring ongoing availability and supply chain continuity.

The CSPB40K-HF is ROHS3 compliant, providing environmental regulatory alignment for new designs and procurement cycles. Both parts carry identical export classification (EAR99) and tariff codes (8541.10.0080), simplifying regulatory and logistics documentation.

The packaging difference between the main part (unspecified packaging) and the substitute (Tape & Reel) does not affect electrical or mechanical compatibility. Tape & Reel packaging is standard for surface mount components and provides improved handling and automated assembly integration.

Frequently Asked Questions (FAQ)

Q: Can CSPB40K-HF directly replace CDSPB40K-HF in existing designs?

A: Yes. Both components are single-phase bridge rectifiers with identical electrical ratings: 800 V peak reverse voltage, 4 A average rectified current, 1 V maximum forward voltage drop at 4 A, and 1 µA maximum reverse leakage at 800 V. Both use 4-SMD surface mount packaging and operate across -55°C to 150°C.

Q: What is the primary reason for substitution?

A: The CDSPB40K-HF is classified as obsolete. The CSPB40K-HF is an active product from the same manufacturer with identical electrical and mechanical specifications, ensuring design continuity and supply availability.

Q: Are there packaging considerations when switching to CSPB40K-HF?

A: The CSPB40K-HF is supplied in Tape & Reel packaging, which is standard for surface mount bridge rectifiers. This packaging format is compatible with automated assembly processes and does not affect electrical performance or PCB footprint.

Q: Does the CSPB40K-HF meet environmental compliance requirements?

A: Yes. The CSPB40K-HF is ROHS3 compliant, meeting current environmental regulations for electronic components. Both parts share identical export classification (EAR99) and tariff codes.

Q: Are the electrical characteristics identical between the two parts?

A: Yes. Both the CDSPB40K-HF and CSPB40K-HF are rated for 800 V peak reverse voltage, 4 A average rectified current, with maximum forward voltage of 1 V @ 4 A and maximum reverse leakage of 1 µA @ 800 V. Operating temperature range is -55°C to 150°C for both parts.