TD2425-B Equivalent & Substitute Parts

Part Overview

The TD2425-B is a solid-state relay (SSR) manufactured by Sensata Technologies, configured as a SPST-NC (1 Form B) device in a hockey puck package. This component is designed for AC load switching applications with zero-cross detection, operating with a 3–32VDC control input and supporting loads up to 25A at 24–280V. The part is currently in active production status and RoHS compliant, making it suitable for industrial control and switching applications where reliable solid-state switching is required.

Equivalent parts are identified when they maintain identical electrical performance characteristics and mechanical compatibility, allowing direct substitution in existing designs without circuit modification.

Substiute Parts

TD2425-B

Sensata TechnologiesIn Stock: 1128TD2425-B Datasheet

Current PartRFQ

D2425-B

Sensata-CrydomIn Stock: 930D2425-B Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

The D2425-B qualifies as a direct equivalent to the TD2425-B based on the following matching parameters:

• Circuit configuration: Both are SPST-NC (1 Form B)
• Output type: Both feature AC switching with zero-cross detection
• Control voltage range: Both accept 3–32VDC input
• Load voltage range: Both support 24–280V
• Load current capacity: Both rated at 25A
• Package type: Both use hockey puck form factor
• Termination: Both employ screw terminal connections
• Compliance: Both are RoHS compliant (TD2425-B: RoHS Compliant; D2425-B: ROHS3 Compliant)

These electrical and mechanical parameters define the substitution criteria for this product category. Parts matching all specified parameters are functionally interchangeable.

Parameter Comparison

Engineering Selection Recommendations

Both the TD2425-B and D2425-B are active production parts with full RoHS compliance. The D2425-B carries additional REACH compliance certification. Selection between these parts should be based on availability, supply chain requirements, and any specific compliance mandates within your application environment. Both parts satisfy identical electrical and mechanical specifications and are suitable for direct substitution in SPST-NC solid-state relay applications requiring 25A switching capacity at 24–280V load voltages.

Frequently Asked Questions (FAQ)

Q: Can the D2425-B replace the TD2425-B in an existing circuit?

A: Yes. Both parts share identical electrical specifications (SPST-NC configuration, 3–32VDC control input, 24–280V load range, 25A capacity) and mechanical form factor (hockey puck, screw terminal, chassis mount). No circuit modification is required.

Q: What determines if a part is a valid substitute for the TD2425-B?

A: A substitute must match all key parameters: SPST-NC circuit configuration, AC zero-cross output type, 3–32VDC control voltage, 24–280V load voltage range, 25A current rating, hockey puck package, screw terminal termination, and chassis mount compatibility.

Q: Are there differences in compliance between these parts?

A: Both parts are RoHS compliant. The D2425-B additionally carries ROHS3 and REACH compliance certifications, which may be relevant for specific regulatory requirements in your application region.

Q: Does packaging affect substitution eligibility?

A: The TD2425-B is supplied in standard packaging, while the D2425-B is supplied in bulk packaging. This affects logistics and inventory management but does not impact electrical or mechanical compatibility.

Q: What is the significance of the different series designations (T vs. 1)?

A: Series designations reflect internal manufacturer product line organization. They do not affect functional equivalence when all electrical and mechanical parameters match.