RU2S-C-D12 Equivalent & Substitute Parts

Part Overview

The RU2S-C-D12 is a general purpose plug-in relay manufactured by IDEC, featuring a DPDT (2 Form C) contact configuration with a 12VDC coil. This socketable relay is designed for applications requiring reliable switching of AC and DC loads with integrated mechanical and lighted indicators. The part is currently active in production with 776 units in stock. Substitute parts are identified when equivalent electrical and mechanical parameters align with the original specification, enabling direct replacement in compatible socket applications.

Substiute Parts

RU2S-C-D12

IDECIn Stock: 857RU2S-C-D12 Datasheet

Current PartRFQ

KHAU-11D12-12

TE Connectivity Potter & Brumfield RelaysIn Stock: 3229KHAU-11D12-12 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the RU2S-C-D12 is determined by strict alignment of the following electrical and mechanical parameters:

• Coil Voltage: Must be 12VDC to ensure direct compatibility with existing control circuits
• Contact Form: Must be DPDT (2 Form C) to maintain switching functionality
• Mounting Type: Must be Socketable to fit existing relay sockets
• Termination Style: Must be Plug In to ensure proper electrical connection
• Coil Resistance: Must be 160 Ohms to match circuit impedance requirements

The KHAU-11D12-12 from TE Connectivity Potter & Brumfield Relays meets these core substitution criteria. However, differences in contact rating, switching voltage, and operating temperature range must be evaluated for specific application requirements.

Parameter Comparison

Engineering Selection Recommendations

Both the RU2S-C-D12 and KHAU-11D12-12 are active products with established supply chains. Selection between these parts depends on application-specific load requirements:

The RU2S-C-D12 is suitable for applications requiring 10 A contact rating with extended low-temperature operation down to -55°C and higher DC switching voltage capability (30VDC).

The KHAU-11D12-12 is suitable for applications with maximum load requirements of 5 A, where faster switching response times (13 ms operate, 6 ms release) and extended high-temperature operation up to 70°C are beneficial. This part is RoHS non-compliant and REACH affected, which may restrict use in regulated markets.

Both relays share identical coil voltage, contact form, coil resistance, and socketable mounting characteristics, enabling substitution where load and environmental constraints permit.

Frequently Asked Questions (FAQ)

Q: Can the KHAU-11D12-12 directly replace the RU2S-C-D12 in all applications?

A: Direct replacement is possible only when the application load does not exceed 5 A. The KHAU-11D12-12 has a lower contact rating (5 A vs. 10 A). If the application requires 10 A switching capacity, the KHAU-11D12-12 is not suitable.

Q: What are the key compatibility factors for substitution?

A: The substitute part must have 12VDC coil voltage, DPDT contact form, socketable mounting type, plug-in termination, and 160 Ohms coil resistance. Both parts meet these criteria.

Q: Are there temperature range differences that affect substitution?

A: Yes. The RU2S-C-D12 operates from -55°C to 60°C, while the KHAU-11D12-12 operates from -45°C to 70°C. Applications requiring operation below -45°C require the RU2S-C-D12.

Q: What is the difference in switching voltage capability?

A: The RU2S-C-D12 supports 250VAC and 30VDC maximum switching voltage. The KHAU-11D12-12 supports 240VAC maximum. Applications requiring 30VDC switching capability must use the RU2S-C-D12.

Q: Do switching time differences matter for substitution?

A: Switching times differ: RU2S-C-D12 has 20 ms operate and 20 ms release time, while KHAU-11D12-12 has 13 ms operate and 6 ms release time. Applications with strict timing requirements must verify compatibility with the substitute part's response characteristics.

Q: Are there compliance or regulatory differences?

A: The KHAU-11D12-12 is RoHS non-compliant and REACH affected. Applications in regulated markets requiring RoHS compliance may have restrictions on the substitute part.