Equivalent & Substitute Parts for PYF14A-E Relay Socket

Part Overview

The PYF14A-E is a 14-position relay socket manufactured by Omron Automation and Safety, designed for DIN rail mounting with screw terminal connections. This socket is compatible with MY4/MY2K relay series and features RoHS compliance with MSL rating of 1 (Unlimited). The product is currently listed as obsolete, making identification of functionally equivalent alternatives essential for ongoing system maintenance and component procurement.

Key Parameters

Parameter	Value
Manufacturer Part Number	PYF14A-E
Manufacturer	Omron Automation and Safety
Type	Socket
Number of Positions	14
Mounting Type	DIN Rail
Termination Style	Screw Terminal
For Use With/Related Products	MY4/MY2K Relays
RoHS Status	RoHS Compliant
Moisture Sensitivity Level	1 (Unlimited)
Product Status	Obsolete

Substitute Part Grouping Explanation

Substitution eligibility for the PYF14A-E is determined by the following critical parameters:

Number of Positions: Must be 14
Mounting Type: Must be DIN Rail (primary requirement for form factor compatibility)
Termination Style: Must be Screw Terminal (electrical connection method)
Type: Must be Socket (functional category)

Substitute parts are grouped into two categories based on these parameters:

Direct Substitutes (DIN Rail, Screw Terminal): Parts meeting all four critical parameters, ensuring mechanical and electrical compatibility without modification.

Related Alternatives (Different Mounting or Termination): Parts sharing the 14-position socket configuration but with different mounting types (Chassis Mount) or termination methods (Solder Lug). These require design or installation modifications and are not direct drop-in replacements.

Parameter Comparison

Parameter	PYF14A-E (Omron)	PYFZ-14-E (Omron)	1-1415526-1 (TE Connectivity)	27E894 (TE Connectivity)
Manufacturer	Omron Automation and Safety	Omron Automation and Safety	TE Connectivity Potter & Brumfield Relays	TE Connectivity Potter & Brumfield Relays
Number of Positions	14	14	14	14
Mounting Type	DIN Rail	DIN Rail	DIN Rail	DIN Rail
Termination Style	Screw Terminal	Screw Terminal	Screw Terminal	Screw Terminal
Type	Socket	Socket	Socket	Socket
For Use With/Related Products	MY4/MY2K Relays	MY2-S Relays	PT, PTH and KHA Series	PT, PTH and KHA Series
RoHS Status	RoHS Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Product Status	Obsolete	Active	Active	Active
Moisture Sensitivity Level	1 (Unlimited)	Not Applicable	1 (Unlimited)	Not Applicable

Engineering Selection Recommendations

Direct Substitutes for DIN Rail Applications:

PYFZ-14-E (Omron) and 27E894 (TE Connectivity) are the primary direct substitutes for PYF14A-E. Both parts maintain the critical parameters: 14-position configuration, DIN rail mounting, and screw terminal termination. Both are active products with current manufacturing status and ROHS3 compliance, providing long-term availability and regulatory compliance advantages over the obsolete PYF14A-E.

1-1415526-1 (TE Connectivity) is also a direct substitute meeting all critical parameters with DIN rail mounting and screw terminal termination. This part carries ROHS3 compliance and active product status.

Related Alternatives (Chassis Mount Applications):

27E166 and 27E006 (TE Connectivity) are 14-position sockets with chassis mount configuration and are not direct substitutes for DIN rail applications. These parts require different installation methods and are suitable only for applications where chassis mounting is the design requirement.

Compliance Considerations:

All active substitute parts (PYFZ-14-E, 1-1415526-1, 27E894) meet ROHS3 compliance standards, exceeding the RoHS compliance of the obsolete PYF14A-E. Selection should prioritize active products to ensure ongoing supply chain support and regulatory alignment.

Frequently Asked Questions (FAQ)

Q: Can PYFZ-14-E directly replace PYF14A-E in existing installations?

A: Yes. PYFZ-14-E maintains identical critical parameters: 14 positions, DIN rail mounting, and screw terminal termination. Both are Omron products, ensuring compatibility with MY series relay systems.

Q: What is the difference between PYF14A-E and 27E894?

A: Both are 14-position DIN rail sockets with screw terminal termination. The primary difference is manufacturer: PYF14A-E is Omron (obsolete), while 27E894 is TE Connectivity (active). 27E894 is compatible with PT, PTH, and KHA relay series rather than MY series relays.

Q: Why are 27E166 and 27E006 listed as alternatives if they are not direct substitutes?

A: These parts share the 14-position socket configuration but use chassis mount installation instead of DIN rail mounting. They are listed as related alternatives for applications where chassis mounting is required, not for direct replacement of DIN rail installations.

Q: Does MSL rating affect substitution eligibility?

A: MSL rating is not a substitution-limiting parameter for these socket products. PYF14A-E has MSL 1 (Unlimited), while some substitutes list MSL as Not Applicable. Both ratings are acceptable for relay socket applications.

Q: Are all substitute parts RoHS compliant?

A: Yes. All active substitute parts (PYFZ-14-E, 1-1415526-1, 27E894) meet ROHS3 compliance. The obsolete PYF14A-E meets RoHS compliance. ROHS3 represents a higher compliance standard and is preferred for new designs and long-term procurement.

Q: What packaging options are available for substitute parts?

A: PYFZ-14-E is available in Bulk packaging. 1-1415526-1 is available in Box packaging. 27E894 is available in Bulk packaging. Packaging selection depends on procurement volume and inventory management requirements.

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