SY4S-51 Relay Socket Equivalent & Substitute Parts

Part Overview

The SY4S-51 is a 14-position relay socket manufactured by IDEC, designed for panel mount applications with solder lug termination. This component is classified as Active product status and is used with RY Series relays. The socket provides a standardized interface for relay connection in industrial control and automation systems. Alternative equivalent parts may be required due to inventory availability, regional sourcing preferences, or specific application requirements for chassis mount configurations.

Substiute Parts

SY4S-51

IDECIn Stock: 866SY4S-51 Datasheet

Current PartRFQ

27E006

TE Connectivity Potter & Brumfield RelaysIn Stock: 258027E006 Datasheet

DirectRFQ

PY14

Omron Automation and SafetyIn Stock: 1272PY14 Datasheet

DirectRFQ

4-1415043-1

TE Connectivity Potter & Brumfield RelaysIn Stock: 9704-1415043-1 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the SY4S-51 is determined by the following critical parameters: 14-position configuration, solder lug termination, and socket type. The substitute parts are grouped into two categories based on mounting configuration:

Direct Equivalents (Panel Mount): Parts maintaining panel mount configuration are functionally interchangeable with the SY4S-51 for applications requiring surface-mounted socket installation.

Compatible Alternatives (Chassis Mount): Parts with chassis mount configuration provide equivalent electrical and mechanical function but require different installation methodology. These are suitable for applications where chassis mounting is acceptable or preferred.

All substitute parts maintain the 14-position, solder lug termination specification required for compatibility with standard relay interfaces.

Parameter Comparison

Engineering Selection Recommendations

PY14 (Omron Automation and Safety): This part is the primary direct equivalent for the SY4S-51. Both components share panel mount configuration and solder lug termination. PY14 is ROHS3 compliant with MSL rating of 1 (Unlimited), indicating superior moisture resistance characteristics. This part is suitable for direct substitution in panel mount applications.

27E006 (TE Connectivity Potter & Brumfield Relays): This part provides equivalent socket functionality with 14-position, solder lug configuration but uses chassis mount installation. It includes a grounding terminal feature and is RoHS compliant. Selection of this part requires mechanical redesign to accommodate chassis mount methodology.

4-1415043-1 (TE Connectivity Potter & Brumfield Relays): This part is functionally equivalent to 27E006 with identical electrical and mechanical specifications. It is ROHS3 compliant and REACH compliant. Like 27E006, it requires chassis mount installation and is not a direct panel mount replacement.

All substitute parts maintain Active product status, ensuring long-term availability and supply chain stability.

Frequently Asked Questions (FAQ)

Q: Can PY14 be used as a direct replacement for SY4S-51? A: Yes. Both parts share identical critical parameters: 14-position configuration, panel mount installation, and solder lug termination. PY14 is suitable for direct substitution without mechanical modification.

Q: What is the primary difference between PY14 and the chassis mount alternatives? A: PY14 maintains panel mount configuration identical to SY4S-51. The TE Connectivity parts (27E006 and 4-1415043-1) use chassis mount installation, requiring different mechanical integration into the application.

Q: Are the TE Connectivity parts (27E006 and 4-1415043-1) interchangeable with each other? A: Yes. Both parts share identical electrical specifications, mounting type (chassis mount), termination style (solder lug), and position count (14). They differ only in packaging format (Tray vs. Box) and base product designation.

Q: What does the grounding terminal feature on 27E006 provide? A: The grounding terminal on 27E006 provides an additional connection point for ground reference. This feature is not present on the other substitute parts and may be relevant for specific grounding requirements in the application circuit.

Q: How do RoHS and REACH compliance ratings affect part selection? A: PY14, 27E006, and 4-1415043-1 all meet RoHS compliance requirements. PY14 and 4-1415043-1 are ROHS3 compliant. 27E006 and 4-1415043-1 are REACH compliant. These certifications ensure compliance with environmental and regulatory standards for the target market region.

Q: Does packaging format affect electrical or mechanical compatibility? A: No. Packaging format (Bulk, Tray, or Box) affects logistics and handling but does not alter electrical performance or mechanical compatibility. Selection should be based on procurement and inventory management requirements.