CD4850W1U Equivalent & Substitute Parts

Part Overview

The CD4850W1U is a solid-state relay (SSR) manufactured by Sensata-Crydom, designed for AC load switching applications. This SPST-NO (Single Pole Single Throw - Normally Open) relay features dual channels in a hockey puck package, rated for 50A load current at 48V to 660V output voltage with 4-32VDC input control. The product is currently obsolete, necessitating identification of active equivalent models to maintain system functionality and ensure continued component availability for new designs and field replacements.

Substiute Parts

CD4850W1U

Sensata-CrydomIn Stock: 1027CD4850W1U Datasheet

Current PartRFQ

CC4850W1UH

Sensata-CrydomIn Stock: 773CC4850W1UH Datasheet

DirectRFQ

CD4850W2U

Sensata-CrydomIn Stock: 786CD4850W2U Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the CD4850W1U is determined by strict equivalence across the following critical parameters:

• Circuit configuration: SPST-NO (1 Form A) x 2
• Output type: AC, Zero Cross
• Input voltage range: 4 ~ 32VDC
• Load voltage range: 48 V ~ 660 V
• Load current rating: 50 A
• Mounting type: Chassis Mount
• Termination style: Screw Terminal
• Package type: Hockey Puck
• Manufacturer: Sensata-Crydom

All identified substitute parts maintain identical electrical and mechanical specifications, ensuring direct functional compatibility without circuit redesign or thermal re-evaluation.

Parameter Comparison

Engineering Selection Recommendations

Both CC4850W1UH and CD4850W2U are active production parts with identical electrical and mechanical specifications to the obsolete CD4850W1U. Selection between these two substitutes should be based on the following factors:

CC4850W1UH is designated as the direct substitute, maintaining the closest part number lineage to the original component. This part carries RoHS Compliant certification.

CD4850W2U is the manufacturer-recommended alternative, offered in bulk packaging and carries ROHS3 Compliant certification, indicating compliance with the most current RoHS directive revision. This part is suitable for new designs requiring the latest regulatory compliance status.

Both parts are functionally interchangeable in applications currently using CD4850W1U. Selection may be influenced by packaging requirements, inventory availability, or specific regulatory compliance mandates applicable to the end application.

Frequently Asked Questions (FAQ)

Q: Can CC4850W1UH and CD4850W2U be used interchangeably with CD4850W1U?

A: Yes. Both substitute parts maintain identical electrical ratings (50A at 48-660V output, 4-32VDC input), circuit configuration (SPST-NO x 2), output type (AC, Zero Cross), mounting type (Chassis Mount), termination style (Screw Terminal), and package type (Hockey Puck). No circuit modifications are required.

Q: What is the difference between CC4850W1UH and CD4850W2U?

A: Both parts are electrically and mechanically identical. The primary differences are packaging format (CC4850W1UH is standard packaging; CD4850W2U is bulk packaging) and RoHS certification revision (RoHS Compliant versus ROHS3 Compliant). CD4850W2U represents the manufacturer-recommended option for new designs.

Q: Why is the original CD4850W1U obsolete?

A: Product obsolescence is determined by the manufacturer. Active substitutes CC4850W1UH and CD4850W2U provide equivalent functionality and are recommended for all new applications and field replacements.

Q: Are there any thermal or mounting considerations when substituting these parts?

A: No. All three parts share identical mounting type (Chassis Mount), package type (Hockey Puck), and electrical ratings. Existing thermal management and mounting solutions remain valid.

Q: Which substitute should be selected for new designs?

A: CD4850W2U is the manufacturer-recommended part for new designs, offering the latest RoHS3 compliance certification and bulk packaging availability.