DC60SA3-B Equivalent & Substitute Parts

Part Overview

The DC60SA3-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 DC load switching applications with a rated load current of 3A and load voltage range of 3V to 60V. The product is currently obsolete, making identification of suitable substitute components essential for ongoing system maintenance and new design implementations.

Substiute Parts

DC60SA3-B

Sensata TechnologiesIn Stock: 819DC60SA3-B Datasheet

Current PartRFQ

DC60S7-B

Sensata-CrydomIn Stock: 1041DC60S7-B Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the DC60SA3-B is determined by the following critical parameters that must remain consistent:

• Circuit configuration: SPST-NC (1 Form B)
• Output type: DC
• Load voltage range: 3V – 60V (minimum requirement)
• Package type: Hockey Puck
• Mounting type: Chassis Mount
• Termination style: Screw Terminal

The DC60S7-B qualifies as a direct substitute because it maintains identical circuit configuration, output type, load voltage range, package geometry, mounting method, and termination interface. The primary difference is an increased load current rating of 7A compared to the original 3A specification, which represents a functional enhancement rather than a limitation for applications requiring the original 3A capacity.

Parameter Comparison

Engineering Selection Recommendations

The DC60S7-B is the manufacturer-recommended substitute for the obsolete DC60SA3-B. Selection of this substitute is based on:

• Identical mechanical and electrical interface compatibility (package, mounting, termination, circuit configuration)
• Maintained load voltage operating range (3V – 60V)
• Enhanced load current capacity (7A vs. 3A) providing operational margin for existing 3A applications
• Active product status ensuring ongoing availability and supply chain continuity
• ROHS3 compliance meeting current environmental and regulatory standards
• Shared DC60 series lineage confirming design compatibility

The difference in input voltage specification (90–280VAC for DC60SA3-B versus 4.6–32VDC for DC60S7-B) reflects the control signal source requirements and must be evaluated against the specific application circuit design.

Frequently Asked Questions (FAQ)

Q: Can the DC60S7-B directly replace the DC60SA3-B in existing applications?

A: Yes, for applications where the load current requirement does not exceed 3A. The DC60S7-B maintains identical load voltage range, circuit configuration, package type, and termination interface. The higher current rating (7A) does not create incompatibility with 3A load circuits.

Q: What is the significance of the different input voltage specifications?

A: The DC60SA3-B accepts 90–280VAC control input, while the DC60S7-B accepts 4.6–32VDC control input. The control signal source in the application circuit must match the substitute part's input specification. This is a control circuit consideration, not a load circuit limitation.

Q: Are the physical dimensions and mounting interfaces identical?

A: Yes. Both parts use the hockey puck package with chassis mount configuration and screw terminal termination. Direct mechanical substitution is possible without modification to mounting hardware or terminal connections.

Q: Does the DC60S7-B meet current compliance standards?

A: Yes. The DC60S7-B is ROHS3 compliant and carries active product status, ensuring compliance with current environmental regulations and ongoing manufacturer support.

Q: Why is the DC60SA3-B listed as obsolete?

A: Manufacturer product lifecycle decisions result in obsolescence. The DC60S7-B represents the current production equivalent within the DC60 series family, providing continued access to compatible solid-state relay technology.