Equivalent & Substitute Parts for Coto Technology 9091-12-10 Reed Relay

Part Overview

The Coto Technology 9091-12-10 is a through-hole mounted reed relay with SPST-NO contact configuration, rated for 500 mA switching capacity at 12 VDC coil voltage. This component is classified as Active product status and is designed for applications requiring low-power electromagnetic switching with fast response times. Substitute parts are identified to provide alternative sourcing options when the primary part number becomes unavailable or when inventory constraints require component alternatives that maintain equivalent electrical and mechanical specifications.

Substiute Parts

9091-12-10

Coto TechnologyIn Stock: 11469091-12-10 Datasheet

Current PartRFQ

MS12-1A87-75L

Standex-Meder ElectronicsIn Stock: 1305MS12-1A87-75L Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the Coto Technology 9091-12-10 is determined by strict alignment of the following critical parameters:

Mandatory Matching Parameters:

• Coil Voltage: 12 VDC
• Contact Form: SPST-NO (1 Form A)
• Contact Rating (Current): 500 mA
• Switching Voltage: 200 VAC, 200 VDC - Max
• Mounting Type: Through Hole
• Termination Style: PC Pin
• Coil Type: Non Latching

Compliance Requirements:

• RoHS3 Compliant status
• Moisture Sensitivity Level 1 (Unlimited)
• REACH Unaffected status
• ECCN EAR99 classification

The Standex-Meder Electronics MS12-1A87-75L meets all mandatory matching parameters and compliance requirements, qualifying it as a direct substitute for the Coto Technology 9091-12-10.

Parameter Comparison

Engineering Selection Recommendations

Primary Part Selection: The Coto Technology 9091-12-10 remains the primary specification when the full operating temperature range of -20°C to 85°C is required and when coil current draw must be minimized at 12 mA. This part is Active status with established supply chain availability.

Substitute Part Selection: The Standex-Meder Electronics MS12-1A87-75L qualifies as a direct substitute when the operating temperature range can be limited to -20°C to 70°C and when the higher coil current of 17.1 mA is acceptable within circuit design parameters. Both parts maintain ROHS3 compliance, REACH Unaffected status, and EAR99 export classification, ensuring regulatory equivalence.

The substitute part exhibits faster release time (0.1 ms versus 0.3 ms) and lower must-operate voltage (8.4 VDC versus 9 VDC), which may provide operational advantages in specific application contexts while maintaining identical contact switching specifications.

Frequently Asked Questions (FAQ)

Q: Can the Standex-Meder MS12-1A87-75L be used as a direct replacement for the Coto 9091-12-10 in all applications?

A: The MS12-1A87-75L is electrically and mechanically compatible for applications operating within the -20°C to 70°C temperature range. Applications requiring operation above 70°C must use the Coto 9091-12-10. Both parts share identical coil voltage, contact form, current rating, and switching voltage specifications.

Q: What is the significance of the coil current difference between these parts?

A: The Coto 9091-12-10 draws 12 mA while the Standex-Meder MS12-1A87-75L draws 17.1 mA. This difference reflects different coil resistance values (1 kOhms versus 700 Ohms). Circuit designs must accommodate the higher current draw of the substitute part, particularly in low-power or battery-operated applications.

Q: Are there differences in switching performance between these relays?

A: Both parts share identical operate time of 0.5 ms. The Standex-Meder substitute exhibits faster release time at 0.1 ms compared to 0.3 ms for the Coto part. The substitute also operates at a lower must-operate voltage of 8.4 VDC versus 9 VDC. These differences may affect circuit timing and voltage margin requirements.

Q: Do both parts meet the same regulatory and compliance standards?

A: Yes. Both the Coto 9091-12-10 and Standex-Meder MS12-1A87-75L are ROHS3 compliant, REACH Unaffected, classified as EAR99, and carry Moisture Sensitivity Level 1 (Unlimited). They are equivalent from a regulatory and environmental compliance perspective.

Q: What packaging format is used for both parts?

A: Both parts are supplied in Tube packaging with through-hole mounting and PC pin termination style, ensuring identical mechanical integration into printed circuit board designs.