CD2450D1U Solid State Relay - Equivalent & Substitute Parts

Part Overview

The CD2450D1U is a solid state relay (SSR) manufactured by Sensata-Crydom, classified as a SPST-NO (Single Pole Single Throw - Normally Open) configuration with dual channels in a Hockey Puck package. This component is designed for AC load switching applications with a 50A capacity across a 24V to 280V load voltage range, controlled by a 4V to 15VDC input signal. The device features zero-cross switching for AC output and screw terminal connections for field installation.

The CD2450D1U maintains Active product status with 702 units currently in stock. Substitute parts are identified when equivalent electrical performance and mechanical compatibility are required due to supply constraints, design standardization, or application-specific packaging preferences.

Substiute Parts

CD2450D1U

Sensata-CrydomIn Stock: 753CD2450D1U Datasheet

Current PartRFQ

ASR-SID240D50ZL-S

Altran Magnetics, LLCIn Stock: 914ASR-SID240D50ZL-S Datasheet

MFR RecommendedRFQ

ASR-SID240D50ZL-S

Altran Magnetics, LLCIn Stock: 914ASR-SID240D50ZL-S Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the CD2450D1U is determined by strict equivalence across the following critical parameters:

• Circuit Configuration: SPST-NO (1 Form A) x 2 channels
• Load Current Rating: 50 A minimum
• Load Voltage Range: 24 V ~ 280 V AC operation
• Control Voltage Range: 4 ~ 15 VDC input
• Output Switching Type: AC with zero-cross capability
• Termination: Screw terminal connections
• Mounting: Chassis mount orientation
• Regulatory Compliance: RoHS and ECCN EAR99 classification

The ASR-SID240D50ZL-S manufactured by Altran Magnetics, LLC qualifies as a substitute part because it maintains electrical equivalence across all critical parameters. The primary distinction is the package form factor: the substitute uses a Module package configuration instead of the Hockey Puck form factor of the original part. Both devices support identical electrical specifications and are suitable for applications where the mechanical envelope permits module-style packaging.

Parameter Comparison

Engineering Selection Recommendations

Both the CD2450D1U and ASR-SID240D50ZL-S maintain Active product status and meet current regulatory requirements. The CD2450D1U carries RoHS Compliant certification, while the substitute part ASR-SID240D50ZL-S meets the more recent ROHS3 Compliant standard and includes REACH Unaffected status.

Selection between these parts should be based on mechanical packaging constraints within the application. The Hockey Puck form factor of the CD2450D1U is optimized for compact panel-mount installations, while the Module package of the ASR-SID240D50ZL-S may offer advantages in applications requiring distributed mounting or modular system architectures. Both parts satisfy identical electrical load switching requirements and control signal specifications.

Frequently Asked Questions (FAQ)

Q: Can the ASR-SID240D50ZL-S replace the CD2450D1U in existing designs?

A: Yes, provided the mechanical envelope accommodates the Module package form factor. All electrical parameters, including current rating, voltage ranges, control signal specifications, and switching characteristics, are equivalent.

Q: What is the primary difference between these two parts?

A: The package configuration differs. The CD2450D1U uses a Hockey Puck form factor, while the ASR-SID240D50ZL-S uses a Module package. Electrical performance and specifications are identical.

Q: Are both parts RoHS compliant?

A: Yes. The CD2450D1U is RoHS Compliant. The ASR-SID240D50ZL-S meets the ROHS3 Compliant standard, which represents a more recent compliance level.

Q: Do both relays support zero-cross switching?

A: Yes. Both the CD2450D1U and ASR-SID240D50ZL-S feature AC output with zero-cross switching capability, reducing electromagnetic interference and extending load life.

Q: Are the screw terminal connections identical between both parts?

A: Both parts use screw terminal termination style. Physical terminal spacing and connection methodology should be verified against the respective datasheets to ensure compatibility with existing wiring harnesses or PCB layouts.

Q: What control voltage range do these relays require?

A: Both relays operate with a 4V to 15VDC control signal, providing flexibility for integration with standard industrial control systems and logic-level outputs.