CWD4850 Equivalent & Substitute Parts

Part Overview

The CWD4850 is a solid-state relay (SSR) manufactured by Sensata-Crydom, configured as a SPST-NO (Single Pole Single Throw - Normally Open) device with 50A load capacity and 48-660V output voltage range. This hockey puck-style relay operates with 4-32VDC input control voltage and features zero-cross AC output switching. The part is currently active in production with 2400 units in stock. Equivalent and substitute parts are identified to provide procurement flexibility, inventory management options, and continuity of supply for applications requiring this specific relay configuration.

Substiute Parts

CWD4850

Sensata-CrydomIn Stock: 2459CWD4850 Datasheet

Current PartRFQ

84134120

Sensata-CrydomIn Stock: 97584134120 Datasheet

DirectRFQ

84137120N

CrouzetIn Stock: 84984137120N Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the CWD4850 is determined by strict equivalence across the following critical parameters: circuit configuration (SPST-NO), load current rating (50A), output voltage range (48-660V), input control voltage (4-32VDC), output switching type (AC with zero-cross), mounting method (chassis mount), physical package (hockey puck), and terminal connection style (screw terminal).

Two substitute parts meet these criteria:

84134120 (Sensata-Crydom, GN Series): Maintains identical electrical specifications and mechanical form factor. Differs in series designation and moisture sensitivity rating.

84137120N (Crouzet, GN Series): Maintains identical electrical specifications and mechanical form factor. Differs in manufacturer, packaging format, and regulatory compliance status.

Parameter Comparison

Engineering Selection Recommendations

All three parts maintain active product status and meet the core electrical and mechanical requirements for SPST-NO 50A solid-state relay applications in the 48-660V output range.

CWD4850 is the primary specification with highest inventory availability (2400 units). ROHS3 and REACH Affected compliance status applies.

84134120 provides direct substitution within the Sensata-Crydom product line with equivalent compliance certifications. Inventory is limited to 892 units. This part is suitable for applications where manufacturer continuity within Sensata-Crydom is preferred.

84137120N is the manufacturer-recommended alternative from Crouzet, offering REACH Unaffected status which may be advantageous for certain supply chain or regulatory requirements. Inventory is limited to 791 units. Packaging is supplied in box format rather than bulk.

Selection between these parts should be based on inventory requirements, preferred manufacturer, regulatory compliance needs, and packaging specifications for your application.

Frequently Asked Questions (FAQ)

Q: Can 84134120 be used as a direct replacement for CWD4850?

A: Yes. Both parts share identical electrical specifications (SPST-NO, 50A, 48-660V output, 4-32VDC input, AC zero-cross switching) and mechanical form factor (hockey puck, chassis mount, screw terminal). Both are manufactured by Sensata-Crydom and maintain equivalent RoHS3 and REACH compliance status.

Q: What is the difference between CWD4850 and 84137120N?

A: The parts are electrically and mechanically equivalent across all critical parameters. The primary differences are manufacturer (Sensata-Crydom vs. Crouzet), series designation (CW48 vs. GN), packaging format (bulk vs. box), and REACH regulatory status (REACH Affected vs. REACH Unaffected).

Q: Are all three parts compatible with the same circuit design?

A: Yes. All three parts maintain identical circuit configuration (SPST-NO), load current rating (50A), voltage specifications (48-660V output, 4-32VDC input), switching type (AC zero-cross), and physical mounting interface (chassis mount hockey puck with screw terminals).

Q: Does packaging format affect electrical performance?

A: No. Packaging format (bulk vs. box) is a logistics and inventory consideration only. It does not affect the electrical or mechanical performance of the relay itself.

Q: Which part should be selected for REACH-sensitive applications?

A: The 84137120N (Crouzet) carries REACH Unaffected status, making it suitable for applications with REACH compliance requirements. The CWD4850 and 84134120 are both REACH Affected.