HC2-SF-K Relay Socket Equivalent & Substitute Parts

Part Overview

The HC2-SF-K is an 8-position chassis mount relay socket manufactured by Panasonic Electric Works. This component is classified as obsolete, making identification of compatible substitute parts essential for ongoing system maintenance and new design implementations. The socket features screw terminal connections and is designed for use with HC2 series relays. Due to its discontinued status, engineers must evaluate available alternatives that maintain functional compatibility while meeting current procurement and compliance requirements.

Substiute Parts

HC2-SF-K

Panasonic Electric WorksIn Stock: 2354HC2-SF-K Datasheet

Current PartRFQ

27E166

TE Connectivity Potter & Brumfield RelaysIn Stock: 140427E166 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for relay sockets is determined by the following parameters: mounting type, termination style, and product availability. The HC2-SF-K operates as a chassis mount socket with screw terminal connections. The substitute part 27E166 shares the same mounting type (chassis mount) and termination style (screw terminal), establishing functional compatibility at the mechanical and electrical interface level. Both components maintain EAR99 export classification and operate under MSL conditions suitable for industrial relay applications.

The primary distinction between the main part and substitute is the number of positions: HC2-SF-K provides 8 positions while 27E166 provides 14 positions. This difference requires circuit-level evaluation to determine suitability for specific applications.

Parameter Comparison

Engineering Selection Recommendations

The 27E166 represents an active product alternative to the obsolete HC2-SF-K. Both components share identical mounting and termination characteristics, enabling mechanical and electrical interface compatibility. The 27E166 maintains EAR99 export classification consistent with the original part.

Selection of 27E166 as a substitute requires confirmation that the 14-position configuration accommodates the circuit requirements of the target application. The increased position count does not create incompatibility; unused positions remain unconnected. The active product status of 27E166 ensures ongoing availability and supply chain stability compared to the obsolete HC2-SF-K.

Frequently Asked Questions (FAQ)

Q: Can 27E166 directly replace HC2-SF-K in existing designs? A: Mechanical and electrical interface compatibility exists due to shared chassis mount configuration and screw terminal termination. The 14-position design of 27E166 accommodates 8-position circuit requirements. Physical footprint and mounting hole patterns must be confirmed for specific PCB or panel layouts.

Q: What is the significance of the position count difference? A: The HC2-SF-K provides 8 connection positions while 27E166 provides 14 positions. This difference does not prevent substitution; the additional positions remain unused in applications designed for 8-position sockets. Circuit design must account for the available terminal count.

Q: How does product status affect substitution decisions? A: HC2-SF-K is classified as obsolete, indicating discontinued manufacturing and limited availability. 27E166 maintains active status, ensuring current production, documented specifications, and reliable supply chain access for new procurements and system maintenance.

Q: Are there compliance or certification differences between these parts? A: Both components carry EAR99 export classification. The HC2-SF-K specifies MSL 1 (Unlimited). The 27E166 lists MSL as Not Applicable. Both are suitable for industrial relay socket applications within their respective environmental specifications.

Q: What packaging considerations apply to these parts? A: HC2-SF-K packaging is unspecified in available documentation. 27E166 is supplied in tray packaging, standard for active production components. Packaging format does not affect functional compatibility but may influence procurement quantities and storage requirements.