A53DP25D Solid State Relay - Equivalent & Substitute Parts

Part Overview

The A53DP25D is a Solid State Relay (SSR) manufactured by Sensata-Crydom, configured as a 3PST-NO (3 Form A) module with 25A load capacity and 48-530V output voltage range. This component is classified as obsolete, making identification of active equivalent parts essential for ongoing system support and procurement planning. The part operates with AC zero-cross switching and accepts 90-280VAC input control voltage, utilizing screw terminal connections for chassis-mounted installations.

Substiute Parts

A53DP25D

Sensata-CrydomIn Stock: 1077A53DP25D Datasheet

Current PartRFQ

A53TP25D

Sensata-CrydomIn Stock: 1097A53TP25D Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the A53DP25D is determined by strict equivalence across the following critical parameters:

• Circuit configuration: 3PST-NO (3 Form A) topology
• Output type: AC with zero-cross switching capability
• Input voltage range: 90 ~ 280VAC
• Load voltage range: 48 V ~ 530 V
• Load current rating: 25 A
• Termination: Screw terminal connections
• Mounting: Chassis mount configuration
• Package type: Module form factor

The A53TP25D qualifies as a direct substitute based on identical electrical specifications and mechanical compatibility across all parameters listed above. The primary distinction is product status: A53TP25D is active and RoHS compliant, whereas A53DP25D is obsolete.

Parameter Comparison

Engineering Selection Recommendations

The A53TP25D is the direct equivalent for A53DP25D applications. Selection of A53TP25D is supported by:

• Identical electrical and mechanical specifications across all functional parameters
• Active product status ensuring ongoing availability and supply chain continuity
• RoHS compliance certification, meeting current environmental and regulatory standards
• Same series designation (53TP) and module form factor, confirming design compatibility
• Equivalent screw terminal interface and chassis mount configuration

No functional or performance differences exist between these parts when applied within the specified electrical and mechanical operating ranges.

Frequently Asked Questions (FAQ)

Q: Can A53TP25D directly replace A53DP25D in existing installations?

A: Yes. The A53TP25D provides direct functional equivalence. All electrical parameters (input voltage, load voltage, current rating, switching type) and mechanical specifications (mounting, termination, package) are identical. No circuit modifications or recertification is required.

Q: What is the significance of the product status difference?

A: A53DP25D is classified as obsolete, indicating discontinued manufacturing and limited availability. A53TP25D is active, ensuring reliable procurement and ongoing manufacturer support. For new designs or system refreshes, A53TP25D should be specified.

Q: Are there packaging differences between these parts?

A: A53DP25D packaging is unspecified in available documentation. A53TP25D is supplied in bulk packaging. Both parts use identical module form factor and screw terminal configuration, so packaging differences do not affect functional compatibility.

Q: Does RoHS compliance affect substitution eligibility?

A: A53TP25D carries RoHS compliance certification, while A53DP25D compliance status is not documented. RoHS compliance does not alter electrical or mechanical performance. Selection of the RoHS-compliant A53TP25D aligns with current environmental standards and regulatory requirements.

Q: Are there any load current or voltage limitations when substituting?

A: No. Both parts operate identically across the full specified range: 25A load current, 48-530V load voltage, and 90-280VAC input voltage. Substitution is valid for all applications within these ranges.