Equivalent & Substitute Parts for CD2425D1U

Part Overview

The CD2425D1U is a solid-state relay (SSR) manufactured by Sensata-Crydom, classified as a SPST-NO (Single Pole Single Throw - Normally Open) configuration with dual output capability in a hockey puck package. This component is rated for 25A load current with input voltage range of 4–15VDC and load voltage range of 24–280VAC, featuring zero-cross switching for AC applications.

The CD2425D1U is currently listed as obsolete. Identifying equivalent and substitute parts is necessary to maintain system functionality and ensure continued availability for new designs or replacement applications.

Key Parameters

Parameter	Value
Circuit Configuration	SPST-NO (1 Form A) x 2
Load Current Rating	25 A
Input Voltage Range	4–15 VDC
Load Voltage Range	24–280 V
Output Type	AC, Zero Cross
Mounting Type	Chassis Mount
Termination Style	Screw Terminal
Package Type	Hockey Puck
Series	Evolution Dual

Substitute Part Grouping Explanation

Substitution eligibility for the CD2425D1U is determined by the following critical parameters: circuit configuration (SPST-NO x 2), load current rating (25A), load voltage range (24–280V), output type (AC with zero-cross switching), package type (hockey puck), mounting type (chassis mount), and termination style (screw terminal).

Substitute parts are grouped into two categories based on input voltage compatibility:

Category 1: Direct Input Voltage Match (4–15VDC) Parts maintaining the original input voltage specification of 4–15VDC are considered direct functional equivalents with no input circuit modifications required.

Category 2: Extended Input Voltage Range (4–32VDC) Parts with expanded input voltage tolerance of 4–32VDC provide broader operational flexibility while maintaining all other critical parameters. These parts are compatible with the original 4–15VDC specification and support extended input voltage applications.

Parameter Comparison

Part Number	Manufacturer	Product Status	Input Voltage	Load Voltage	Load Current	Circuit Config	Output Type	Package	RoHS Status
CD2425D1U	Sensata-Crydom	Obsolete	4–15 VDC	24–280 V	25 A	SPST-NO x 2	AC, Zero Cross	Hockey Puck	Not Specified
CD2425W2U	Sensata-Crydom	Active	4–32 VDC	24–280 V	25 A	SPST-NO x 2	AC, Zero Cross	Hockey Puck	RoHS Compliant
CC2425D3U	Sensata-Crydom	Active	4–15 VDC	24–280 V	25 A	SPST-NO x 2	AC, Zero Cross	Hockey Puck	RoHS Compliant
CD2425D1V	Sensata Technologies	Active	4–15 VDC	24–280 V	25 A	SPST-NO x 2	AC, Zero Cross	Hockey Puck	RoHS Compliant
CD2425W3U	Sensata-Crydom	Active	4–32 VDC	24–280 V	25 A	SPST-NO x 2	AC, Zero Cross	Hockey Puck	RoHS Compliant

Engineering Selection Recommendations

For Direct Replacement (Input Voltage 4–15VDC Required):

CC2425D3U and CD2425D1V are active, in-stock alternatives that maintain the original 4–15VDC input voltage specification. Both parts carry RoHS Compliant certification. CC2425D3U is manufactured by Sensata-Crydom under the base product number CC2425, while CD2425D1V is manufactured by Sensata Technologies under the base product number CD2425. Both are functionally equivalent to the obsolete CD2425D1U.

For Extended Input Voltage Applications (4–32VDC Tolerance):

CD2425W2U and CD2425W3U are active alternatives that extend the input voltage range to 4–32VDC while maintaining all other electrical and mechanical specifications. Both parts are RoHS Compliant and manufactured by Sensata-Crydom. These parts are suitable for applications requiring broader input voltage tolerance.

All substitute parts maintain identical load current (25A), load voltage range (24–280V), circuit configuration (SPST-NO x 2), output type (AC, zero-cross), package type (hockey puck), and termination style (screw terminal) as the original CD2425D1U.

Frequently Asked Questions (FAQ)

Q: Can CD2425W2U or CD2425W3U be used as direct replacements for CD2425D1U?

A: Yes. Both parts maintain all critical electrical and mechanical parameters: 25A load current, 24–280V load voltage range, SPST-NO x 2 circuit configuration, AC zero-cross output, hockey puck package, chassis mount, and screw terminal termination. The extended input voltage range (4–32VDC) is backward compatible with the original 4–15VDC specification.

Q: What is the difference between CD2425D1V and CD2425D1U?

A: CD2425D1V is the active equivalent manufactured by Sensata Technologies. Both parts share identical electrical specifications: 4–15VDC input, 24–280V load voltage, 25A load current, SPST-NO x 2 configuration, and hockey puck package. CD2425D1V carries RoHS Compliant certification and is currently in active production.

Q: Are there differences between the CC2425D3U and CD2425 series parts?

A: CC2425D3U uses the base product number CC2425, while CD2425W2U, CD2425W3U, and CD2425D1V use the base product number CD2425. All maintain identical electrical and mechanical specifications for the 25A, 24–280V SPST-NO x 2 configuration. The base product number distinction reflects different manufacturing or product line designations within the Sensata-Crydom Evolution Dual series.

Q: Which substitute part should be selected for new designs?

A: Selection depends on input voltage requirements. For applications requiring 4–15VDC input, CC2425D3U or CD2425D1V are appropriate. For applications requiring extended input voltage tolerance (4–32VDC), CD2425W2U or CD2425W3U are appropriate. All substitute parts are active, in-stock, and RoHS Compliant.

Q: Is the hockey puck package identical across all substitute parts?

A: Yes. All parts listed—CD2425D1U, CD2425W2U, CC2425D3U, CD2425D1V, and CD2425W3U—use the hockey puck package type with chassis mount configuration and screw terminal termination. Physical and electrical interface compatibility is maintained across all parts.

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