Coto Technology 7301-12-1100 Equivalent & Substitute Parts

Part Overview

The Coto Technology 7301-12-1100 is a reed relay with single-pole, single-throw (SPST) configuration rated for 500 mA at 12VDC. This component is classified as obsolete, necessitating identification of active substitute parts that maintain functional compatibility for existing applications. Substitute parts must satisfy the electrical and mechanical requirements established for this relay category.

Substiute Parts

7301-12-1100

Coto TechnologyIn Stock: 10847301-12-1100 Datasheet

Current PartRFQ

SHV12-1A85-78L4K

Standex-Meder ElectronicsIn Stock: 1823SHV12-1A85-78L4K Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the Coto Technology 7301-12-1100 is based on the following critical parameters that establish functional equivalence:

Mandatory Matching Parameters:

• Coil Voltage: 12VDC
• Contact Form: SPST-NO (1 Form A)
• Mounting Type: Through Hole
• Termination Style: PC Pin

Compatible Rating Parameters: The substitute part must support contact current ratings equal to or greater than 500 mA and switching voltage ratings equal to or greater than 500VAC/500VDC maximum. The substitute must operate within the specified temperature range and possess equivalent or superior moisture sensitivity and compliance certifications.

The Standex-Meder Electronics SHV12-1A85-78L4K satisfies all mandatory matching parameters and exceeds the minimum current and voltage ratings required for direct substitution.

Parameter Comparison

Engineering Selection Recommendations

The Standex-Meder Electronics SHV12-1A85-78L4K is a direct functional substitute for the obsolete Coto Technology 7301-12-1100. Both relays maintain identical coil voltage, contact form, mounting type, and termination style. The substitute part provides enhanced electrical performance with doubled contact current and switching voltage ratings.

The SHV12-1A85-78L4K possesses active product status with ROHS3 and REACH compliance, ensuring availability and regulatory alignment for new designs and field replacements. The extended operating temperature range (-40°C to 100°C compared to -20°C to 85°C) provides broader environmental compatibility.

The lower coil resistance of the substitute part (500 Ohms vs. 1.1 kOhms) results in increased coil current draw (24 mA vs. 10.9 mA), which must be evaluated in the context of the application's power supply and drive circuitry. Both parts are MSL Level 1 rated with unlimited shelf life.

Frequently Asked Questions (FAQ)

Q: Can the SHV12-1A85-78L4K replace the 7301-12-1100 in my application? A: Direct substitution is supported when the application's power supply and drive circuitry can accommodate the higher coil current (24 mA) of the substitute part. The identical coil voltage, contact form, mounting type, and termination style establish mechanical and electrical compatibility.

Q: What are the key differences between these two relays? A: The primary differences are contact current rating (500 mA vs. 1 A), switching voltage capability (500VAC/VDC vs. 1000VAC/VDC), coil resistance (1.1 kOhms vs. 500 Ohms), coil current (10.9 mA vs. 24 mA), and operating temperature range (-20°C~85°C vs. -40°C~100°C). The substitute provides superior electrical ratings and expanded temperature performance.

Q: Why is the original part obsolete? A: The Coto Technology 7301-12-1100 is classified as obsolete based on manufacturer discontinuation. The Standex-Meder SHV12-1A85-78L4K remains in active production and is the identified substitute for replacement in new applications or field upgrades.

Q: Are there packaging differences between these parts? A: The original part is supplied on reel packaging; the substitute part is supplied in tube packaging. Both maintain Through Hole mounting and PC Pin termination compatible with standard PCB assembly processes.

Q: What compliance certifications should I verify? A: Both parts are RoHS compliant, MSL Level 1 rated, and REACH unaffected. The substitute maintains ROHS3 compliance, meeting the most current regulatory standards for electronic components.