T7CS1D-24 Equivalent & Substitute Parts

Part Overview

The T7CS1D-24 is a general purpose relay manufactured by TE Connectivity Potter & Brumfield Relays, configured as a Single Pole Single Throw Normally Open (SPST-NO) relay with a 24VDC coil. This through-hole mounted relay is rated for 12A continuous contact current and is designed for general industrial switching applications.

The T7CS1D-24 is classified as obsolete. Identifying equivalent and substitute parts is necessary to maintain design continuity, ensure supply chain availability, and support ongoing production and maintenance requirements for systems utilizing this relay.

Substiute Parts

T7CS1D-24

TE Connectivity Potter & Brumfield RelaysIn Stock: 1107T7CS1D-24 Datasheet

Current PartRFQ

J1071AS24VDC.36

CIT Relay and SwitchIn Stock: 2726J1071AS24VDC.36 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the T7CS1D-24 is determined by strict alignment of the following critical parameters:

Mandatory Matching Parameters:

• Coil Voltage: 24VDC
• Contact Form: SPST-NO (1 Form A)
• Coil Type: Non Latching
• Mounting Type: Through Hole
• Termination Style: PC Pin
• Seal Rating: Sealed - Fully
• Coil Insulation: Class F
• Coil Current: 15 mA
• Coil Resistance: 1.6 kOhms

Allowable Variation Parameters:

• Contact Rating (Current): Substitute must equal or exceed 12A
• Switching Voltage: Substitute must support at minimum 240VAC and 28VDC
• Operating Temperature Range: Substitute must encompass or exceed -30°C ~ 85°C
• Contact Material: May differ while maintaining sealed, fully rated construction

The substitute part J1071AS24VDC.36 satisfies all mandatory matching parameters and meets or exceeds all allowable variation thresholds.

Parameter Comparison

Engineering Selection Recommendations

The J1071AS24VDC.36 is a direct functional substitute for the T7CS1D-24 based on the following engineering criteria:

Product Status Advantage: The J1071AS24VDC.36 is classified as Active, providing assured long-term availability and supply chain continuity compared to the obsolete T7CS1D-24.

Compliance and Certification: Both parts carry REACH Unaffected and EAR99 ECCN classifications. The J1071AS24VDC.36 additionally carries RoHS3 Compliance certification, meeting current regulatory requirements for new designs and procurement.

Electrical Compatibility: The substitute part maintains identical coil voltage (24VDC), coil current (15 mA), and coil resistance (1.6 kOhms), ensuring direct electrical compatibility with existing circuit designs. The contact current rating of 15A exceeds the original 12A specification, providing additional margin for load switching.

Mechanical Compatibility: Both relays share identical mounting type (Through Hole), termination style (PC Pin), and seal rating (Sealed - Fully), ensuring direct mechanical interchangeability on printed circuit boards.

Temperature Performance: The J1071AS24VDC.36 operating temperature range of -40°C ~ 125°C exceeds the original -30°C ~ 85°C specification, providing enhanced performance across extended environmental conditions.

Switching Voltage Consideration: The J1071AS24VDC.36 supports 125VAC maximum switching voltage, compared to the original 240VAC specification. Applications requiring 240VAC switching capability must be evaluated against actual circuit requirements before substitution.

Frequently Asked Questions (FAQ)

Q: Can the J1071AS24VDC.36 be used as a direct replacement for the T7CS1D-24 in all applications?

A: The J1071AS24VDC.36 is electrically and mechanically compatible with the T7CS1D-24 for applications operating at or below 125VAC switching voltage. Applications requiring 240VAC switching capability require circuit evaluation to confirm compatibility with the substitute part's 125VAC maximum rating.

Q: What is the significance of the different contact materials (AgCdO vs. AgSnO)?

A: Both Silver Cadmium Oxide (AgCdO) and Silver Tin Oxide (AgSnO) are established contact materials for sealed relay applications. The substitute part's Silver Tin Oxide material maintains the sealed, fully rated construction and switching performance required for general purpose relay applications.

Q: Does the higher contact current rating (15A vs. 12A) of the substitute part affect circuit design?

A: The higher contact current rating of the J1071AS24VDC.36 provides additional safety margin and does not negatively impact circuit design. Existing circuits designed for 12A operation remain fully compatible with the 15A-rated substitute.

Q: Are there packaging differences between the main part and substitute?

A: The T7CS1D-24 is supplied with standard packaging, while the J1071AS24VDC.36 is supplied in Box packaging. Both parts maintain identical through-hole PC pin termination and mounting footprint compatibility.

Q: What is the advantage of the extended operating temperature range of the substitute part?

A: The J1071AS24VDC.36 operating range of -40°C ~ 125°C compared to the original -30°C ~ 85°C provides enhanced performance in applications subject to extreme environmental conditions, including cold-start and high-temperature industrial environments.

Q: Is the J1071AS24VDC.36 suitable for new design implementations?

A: Yes. The J1071AS24VDC.36 is classified as Active product status with RoHS3 Compliance certification, making it suitable for new design implementations and current procurement standards.