Omron LY2N-AC6 General Purpose Relay – Equivalent & Substitute Parts

Part Overview

The Omron LY2N-AC6 is a general purpose relay with DPDT (2 Form C) contact configuration, rated for 10A at 6VAC coil voltage. This socketable relay features a lighted indicator and is designed for non-latching applications with silver alloy contacts. The product is currently obsolete, making equivalent substitutes necessary for ongoing maintenance and new designs requiring compatible functionality.

Substiute Parts

LY2N-AC6

Omron Automation and SafetyIn Stock: 913LY2N-AC6 Datasheet

Current PartRFQ

K10P-11A15-6

TE Connectivity Potter & Brumfield RelaysIn Stock: 1229K10P-11A15-6 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

The TE Connectivity Potter & Brumfield K10P-11A15-6 qualifies as a functional substitute based on the following critical parameters:

Matching Parameters:

• Coil voltage: 6VAC (identical)
• Contact form: DPDT (2 Form C) (identical)
• Mounting type: Socketable (identical)
• Termination style: Plug In compatible (identical)
• Coil type: Non Latching (identical)

Allowable Variations:

• Contact rating: 15A (exceeds 10A requirement; higher current capacity is acceptable for substitution)
• Switching voltage: 120VAC max (lower than LY2N-AC6 at 250VAC/125VDC; application-dependent consideration required)
• Operating temperature: -45°C ~ 70°C (wider range than LY2N-AC6; acceptable)
• Coil current: 200mA vs. 183mA (within acceptable tolerance for 6VAC coil designs)

Parameter Comparison

Engineering Selection Recommendations

The K10P-11A15-6 is an active product substitute for the obsolete LY2N-AC6. Selection should account for the following factors:

Compliance Consideration: The LY2N-AC6 is RoHS compliant, while the K10P-11A15-6 is RoHS non-compliant. Applications subject to RoHS requirements must evaluate regulatory impact before substitution.

Electrical Performance: The K10P-11A15-6 provides higher contact current capacity (15A vs. 10A), which is advantageous for margin. However, the maximum switching voltage is reduced to 120VAC compared to the LY2N-AC6 specification of 250VAC/125VDC. Applications requiring the higher switching voltage specification cannot use this substitute.

Timing Characteristics: The K10P-11A15-6 exhibits faster operate and release times (13ms and 10ms respectively) compared to the LY2N-AC6 (25ms each). This difference may affect circuit timing in applications with strict temporal requirements.

Contact Material Difference: The K10P-11A15-6 uses Silver Cadmium Oxide contacts versus the LY2N-AC6 Silver Alloy contacts. This material difference affects contact wear characteristics and load-switching performance.

Availability: The K10P-11A15-6 is currently in active production with 1161 units in stock, whereas the LY2N-AC6 is obsolete.

Frequently Asked Questions (FAQ)

Q: Can the K10P-11A15-6 directly replace the LY2N-AC6 in all applications?

A: Direct replacement is possible only when the application switching voltage does not exceed 120VAC and RoHS non-compliance is acceptable. The higher contact current rating of the K10P-11A15-6 is compatible with 10A-rated circuits. Applications requiring 250VAC or 125VDC switching capability must use an alternative substitute.

Q: What is the impact of the faster switching times in the K10P-11A15-6?

A: The K10P-11A15-6 operates in 13ms and releases in 10ms, compared to 25ms for both operations in the LY2N-AC6. In circuits with timing-dependent logic or synchronization requirements, this faster response may alter system behavior. Circuit validation is necessary for time-critical applications.

Q: Are the socketable mounting interfaces identical between these relays?

A: Both relays feature socketable mounting with plug-in termination. The K10P-11A15-6 additionally supports quick-connect 0.187" (4.7mm) termination. Existing sockets designed for the LY2N-AC6 will accommodate the K10P-11A15-6 plug-in configuration.

Q: What is the significance of the different contact materials?

A: The LY2N-AC6 uses silver alloy contacts, while the K10P-11A15-6 uses silver cadmium oxide (AgCdO) contacts. Silver cadmium oxide provides superior arc resistance and contact wear characteristics under high-current switching. For low-signal applications, silver alloy may be preferred. Application load type determines the optimal contact material.

Q: Does the coil current difference of 17mA affect circuit design?

A: The K10P-11A15-6 coil current is 200mA versus 183mA for the LY2N-AC6, a difference of 17mA. For 6VAC coil designs, this represents approximately 9% higher power consumption. Existing driver circuits must be evaluated to confirm adequate current capacity; most standard relay drivers accommodate this variance.

Q: What alternatives exist if the 120VAC switching voltage limit is insufficient?

A: Applications requiring 250VAC or 125VDC switching capability must source alternative substitutes with higher voltage ratings. The K10P-11A15-6 is not suitable for these applications.