CD4850E1U Equivalent & Substitute Parts

Part Overview

The CD4850E1U is a solid-state relay (SSR) manufactured by Sensata-Crydom, configured as a SPST-NO (Single Pole Single Throw - Normally Open) dual-channel device rated for 50A load current at 48V to 660V AC output. The device features a hockey puck form factor with screw terminal connections and is designed for chassis mount applications with zero-cross switching capability.

The CD4850E1U is classified as obsolete. Identifying equivalent and substitute parts is necessary to maintain system functionality, ensure supply chain continuity, and support ongoing maintenance and replacement requirements for legacy installations.

Key Parameters

Parameter	Value
Manufacturer	Sensata-Crydom
Circuit Configuration	SPST-NO (1 Form A) x 2
Output Type	AC, Zero Cross
Load Current Rating	50 A
Load Voltage Range	48 V ~ 660 V
Input Voltage Range	15 ~ 32 VDC
Mounting Type	Chassis Mount
Termination Style	Screw Terminal
Package / Case	Hockey Puck
Product Status	Obsolete

Substitute Part Grouping Explanation

Substitute parts for the CD4850E1U are qualified based on the following critical parameters that determine functional equivalence:

Circuit configuration: SPST-NO (1 Form A) x 2 (dual-channel requirement)
Load current rating: 50 A minimum
Load voltage range: 48 V ~ 660 V (full overlap required)
Output type: AC with zero-cross switching
Termination style: Screw terminal
Mounting compatibility: Chassis mount capability

The substitute parts listed below maintain these core electrical and mechanical specifications. Variations in input voltage range, packaging format, and product status are noted but do not affect functional substitution within the specified load parameters.

Parameter Comparison

Parameter	CD4850E1U	CC4850E1U	CD4850E2UH	CD4850W2U	84140603N
Manufacturer	Sensata-Crydom	Sensata-Crydom	Sensata-Crydom	Sensata-Crydom	Crouzet
Circuit Configuration	SPST-NO (1 Form A) x 2	SPST-NO (1 Form A) x 2	SPST-NO (1 Form A) x 2	SPST-NO (1 Form A) x 2	SPST-NO (1 Form A) x 2
Output Type	AC, Zero Cross	AC, Zero Cross	AC, Zero Cross	AC, Zero Cross	AC, Zero Cross
Load Current Rating	50 A	50 A	50 A	50 A	50 A
Load Voltage Range	48 V ~ 660 V	48 V ~ 660 V	48 V ~ 660 V	48 V ~ 660 V	48 V ~ 660 V
Input Voltage Range	15 ~ 32 VDC	15 ~ 32 VDC	15 ~ 32 VDC	4 ~ 32 VDC	4 ~ 32 VDC
Mounting Type	Chassis Mount	Chassis Mount	Chassis Mount	Chassis Mount	Chassis Mount or Panel Mount
Termination Style	Screw Terminal	Screw Terminal	Screw Terminal	Screw Terminal	Screw Terminal
Package / Case	Hockey Puck	Hockey Puck	Hockey Puck	Hockey Puck	Module
Product Status	Obsolete	Active	Active	Active	Active
RoHS Status	Not specified	RoHS Compliant	RoHS Compliant	ROHS3 Compliant	ROHS3 Compliant

Engineering Selection Recommendations

CC4850E1U (Sensata-Crydom): Direct equivalent with identical electrical specifications and hockey puck form factor. Active product status ensures ongoing availability and support. RoHS compliant. Recommended as the primary direct replacement for CD4850E1U.

CD4850E2UH (Sensata-Crydom): Functionally equivalent with identical electrical specifications and hockey puck form factor. Active product status. RoHS compliant. Suitable for direct substitution.

CD4850W2U (Sensata-Crydom): Functionally equivalent with expanded input voltage range (4 ~ 32 VDC vs. 15 ~ 32 VDC). Hockey puck form factor. Active product status. ROHS3 compliant. Acceptable substitute with enhanced input voltage flexibility.

84140603N (Crouzet): Cross-manufacturer equivalent with identical electrical specifications. Module form factor differs from hockey puck. Supports both chassis mount and panel mount configurations. Active product status. ROHS3 compliant. Suitable for applications where form factor flexibility is acceptable.

Frequently Asked Questions (FAQ)

Q: Can CC4850E1U directly replace CD4850E1U? A: Yes. CC4850E1U maintains identical electrical specifications (50A, 48V-660V load range, SPST-NO x 2, AC zero-cross output) and identical hockey puck form factor. It is the direct equivalent for the obsolete CD4850E1U.

Q: What is the difference between CD4850E2UH and CD4850W2U? A: Both are functionally equivalent to CD4850E1U with identical load ratings and circuit configuration. CD4850W2U offers an expanded input voltage range (4 ~ 32 VDC) compared to the standard 15 ~ 32 VDC range. CD4850W2U is supplied in bulk packaging.

Q: Can 84140603N be used as a substitute despite the different form factor? A: Yes, if mechanical mounting constraints permit. The 84140603N is a module form factor rather than hockey puck, but maintains all critical electrical specifications (50A, 48V-660V, SPST-NO x 2, AC zero-cross). It offers additional mounting flexibility with both chassis and panel mount capability.

Q: Are all substitute parts RoHS compliant? A: CC4850E1U, CD4850E2UH, CD4850W2U, and 84140603N are all RoHS compliant (RoHS or ROHS3 status). The original CD4850E1U RoHS status is not specified.

Q: What is the input voltage requirement for each substitute? A: CC4850E1U and CD4850E2UH require 15 ~ 32 VDC input. CD4850W2U and 84140603N accept 4 ~ 32 VDC input, providing broader input voltage compatibility.

Q: Are all substitutes available in stock? A: All listed substitutes are reported as active products with current inventory availability. Specific stock levels should be confirmed with the supplier for procurement planning.

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