Omron MY4Z AC6 (S) General Purpose Relay – Equivalent & Substitute Parts

Part Overview

The Omron MY4Z AC6 (S) is a general purpose 4PDT (4 Form C) relay with a 6VAC coil, rated for 3A contact current and socketable mounting. This relay is designed for industrial control applications requiring reliable switching of AC and DC loads. The part is currently active in production with full RoHS compliance and unlimited moisture sensitivity rating (MSL 1).

Substitute parts are identified to provide alternative sourcing options when the primary part is unavailable, while maintaining equivalent electrical performance and mechanical compatibility within the socketable relay form factor.

Substiute Parts

MY4Z AC6 (S)

Omron Automation and SafetyIn Stock: 917MY4Z AC6 (S) Datasheet

Current PartRFQ

KHAU-17A11-6

TE Connectivity Potter & Brumfield RelaysIn Stock: 1103KHAU-17A11-6 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

The TE Connectivity Potter & Brumfield KHAU-17A11-6 relay qualifies as a substitute based on the following critical parameters:

Matching Parameters (Substitution Basis):

• Coil voltage: 6VAC
• Contact form: 4PDT (4 Form C)
• Contact rating: 3 A
• Mounting type: Socketable
• Termination style: Plug In
• Coil type: Non Latching
• Contact material: Silver (Ag)
• Switching voltage capability: 240VAC (within application range)
• RoHS compliance: ROHS3 Compliant
• MSL rating: 1 (Unlimited)

These parameters define the functional and mechanical interchangeability of the relay within socketable relay applications requiring 6VAC coil actuation and 4PDT switching capability.

Parameter Comparison

Engineering Selection Recommendations

Both relays meet the core substitution criteria for 6VAC socketable 4PDT applications. Selection between the Omron MY4Z AC6 (S) and TE Connectivity KHAU-17A11-6 should be based on the following factors:

Omron MY4Z AC6 (S): Select when extended low-temperature operation below -45°C is required, or when maximum switching voltage capability (250VAC, 125VDC) is specified. RoHS Compliant status applies.

TE Connectivity KHAU-17A11-6: Select when faster switching response is required (13 ms operate, 6 ms release versus 20 ms for both parameters on the Omron). ROHS3 Compliant status applies. Operating temperature range is -45°C ~ 70°C.

Both parts carry active product status and unlimited MSL rating, confirming current manufacturing availability and suitability for standard storage and handling conditions.

Frequently Asked Questions (FAQ)

Q: Can the TE Connectivity KHAU-17A11-6 directly replace the Omron MY4Z AC6 (S) in existing applications?

A: Yes, within the specified operating parameters. Both relays share identical coil voltage (6VAC), contact form (4PDT), contact rating (3A), mounting type (socketable), and termination style (plug in). The socketable design ensures mechanical compatibility. Verify that the application does not require operation below -45°C or switching voltages exceeding 240VAC.

Q: What are the key differences between these two relays?

A: The primary differences are operating temperature range (Omron: -55°C to 70°C; TE: -45°C to 70°C), switching voltage maximum (Omron: 250VAC/125VDC; TE: 240VAC), and switching speed (TE operates faster at 13 ms operate/6 ms release versus Omron at 20 ms for both). Coil current and resistance also differ slightly (Omron: 183 mA, 12.2 Ohms; TE: 200 mA, 10.5 Ohms).

Q: Are both relays RoHS compliant?

A: Yes. The Omron MY4Z AC6 (S) is RoHS Compliant. The TE Connectivity KHAU-17A11-6 is ROHS3 Compliant. Both meet environmental compliance requirements.

Q: What does socketable mounting mean for these relays?

A: Socketable mounting indicates that both relays are designed to plug into a standardized relay socket base. This allows for tool-free installation and removal without soldering, facilitating field replacement and maintenance.

Q: Are there any temperature-related limitations when substituting?

A: Yes. If your application requires operation below -45°C, the Omron MY4Z AC6 (S) is required, as the TE Connectivity KHAU-17A11-6 is rated only to -45°C minimum. Both relays operate to 70°C maximum.

Q: Do both relays use the same contact material?

A: Yes. Both relays use silver (Ag) contact material, ensuring consistent contact performance and arc resistance characteristics across substitution.