CKRA4810E Equivalent & Substitute Parts

Part Overview

The CKRA4810E is a Solid State Relay (SSR) manufactured by Sensata Technologies, configured as a SPST-NO (1 Form A) relay with integrated heat sink for DIN Rail mounting. This component is designed for AC load switching applications with zero-cross detection, operating with input voltage of 18–36VAC and supporting load voltages from 48V to 530V at 10A capacity.

The CKRA4810E is classified as obsolete. Identifying equivalent substitute parts is necessary to maintain system functionality and ensure continued availability for new designs or replacement applications where the original component is no longer in production.

Substiute Parts

CKRA4810E

Sensata TechnologiesIn Stock: 698CKRA4810E Datasheet

Current PartRFQ

DR2260A20U

Sensata-CrydomIn Stock: 1037DR2260A20U Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the CKRA4810E is determined by the following critical parameters:

• Circuit Configuration: Must remain SPST-NO (1 Form A) to maintain identical switching topology
• Output Type: Must support AC switching with zero-cross detection for compatible control behavior
• Mounting Type: Must support DIN Rail mounting for mechanical compatibility
• Termination Style: Must use Screw Terminal for direct connection compatibility
• Package / Case: Must feature SSR with Integrated Heat Sink for thermal management and form factor
• Load Voltage Range: Substitute must support the required 48–530V load voltage window
• Load Current: Substitute must meet or exceed the 10A requirement
• Input Voltage Compatibility: Substitute input voltage must be compatible with the control circuit

The DR2260A20U from Sensata-Crydom meets these substitution criteria while offering enhanced specifications in load current capacity and input voltage flexibility.

Parameter Comparison

Engineering Selection Recommendations

The DR2260A20U is the manufacturer-recommended substitute for the CKRA4810E. Both components share identical circuit topology, output characteristics, and mechanical form factor. The DR2260A20U is currently in active production status, ensuring long-term availability and supply chain continuity.

The DR2260A20U provides enhanced specifications: load current capacity of 20A (versus 10A), expanded load voltage range to 600V (versus 530V), and broader input voltage compatibility (90–280VAC/DC versus 18–36VAC). These enhancements ensure the substitute can handle equivalent or higher-demand applications without performance degradation.

Both components maintain RoHS compliance and identical termination and mounting characteristics, enabling direct mechanical and electrical substitution in existing designs. The DR2260A20U's active product status and ROHS3 compliance provide assurance of regulatory alignment and continued manufacturing support.

Frequently Asked Questions (FAQ)

Q: Can the DR2260A20U directly replace the CKRA4810E in existing applications?

A: Yes. Both components share identical SPST-NO circuit configuration, AC zero-cross output type, DIN Rail mounting, and screw terminal termination. The DR2260A20U's enhanced load current (20A) and voltage range (48–600V) are backward-compatible with applications designed for the 10A, 48–530V CKRA4810E.

Q: What is the difference in input voltage requirements?

A: The CKRA4810E requires 18–36VAC input, while the DR2260A20U accepts 90–280VAC/DC input. If the control circuit supplies 18–36VAC, the DR2260A20U will not operate. Verify control circuit voltage compatibility before substitution.

Q: Are there mechanical differences between these components?

A: No. Both components feature identical DIN Rail mounting, screw terminal termination, and SSR with integrated heat sink packaging. Physical installation and connection procedures remain unchanged.

Q: Why is the CKRA4810E classified as obsolete?

A: The CKRA4810E has been discontinued by Sensata Technologies. The DR2260A20U represents the current-generation equivalent from the Sensata-Crydom product line, offering improved specifications and ongoing manufacturing support.

Q: Are there compliance differences?

A: Both components are RoHS compliant. The DR2260A20U carries ROHS3 compliance and is REACH Affected, reflecting current regulatory standards. The CKRA4810E meets RoHS requirements but is no longer actively manufactured.