Coto Technology 9301-12-00 Reed Relay Equivalent & Substitute Parts

Part Overview

The Coto Technology 9301-12-00 is a surface mount reed relay with SPST-NO contact configuration rated for 500 mA at 12VDC coil voltage. This component is classified as obsolete, necessitating identification of active equivalent parts for new designs and ongoing production requirements. The relay operates with a maximum switching voltage of 200VAC/200VDC and features gull wing termination suitable for automated assembly processes.

Substiute Parts

9301-12-00

Coto TechnologyIn Stock: 7069301-12-00 Datasheet

Current PartRFQ

9401-12-00

Coto TechnologyIn Stock: 19339401-12-00 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 9301-12-00 is determined by equivalence across the following critical parameters:

Mandatory Matching Parameters:

• Coil Voltage: 12VDC
• Contact Form: SPST-NO (1 Form A)
• Contact Rating (Current): 500 mA
• Switching Voltage: 200VAC, 200VDC - Max
• Mounting Type: Surface Mount
• Termination Style: Gull Wing
• Operating Temperature Range: -20°C ~ 85°C
• RoHS Status: ROHS3 Compliant

Allowable Variation Parameters:

• Coil Current: Variation permitted within design margin
• Coil Resistance: Variation permitted with coil current
• Operate Time: Variation permitted within millisecond range
• Release Time: Variation permitted within millisecond range
• Product Status: Active status preferred for obsolete parts

The Coto Technology 9401-12-00 satisfies all mandatory matching parameters and represents a direct functional equivalent with active product status.

Parameter Comparison

Engineering Selection Recommendations

The Coto Technology 9401-12-00 is the direct substitute for the obsolete 9301-12-00 reed relay. Both components are manufactured by Coto Technology and maintain identical electrical and mechanical specifications across all critical parameters including coil voltage, contact rating, switching voltage, and operating temperature range.

The 9401-12-00 offers the advantage of active product status, ensuring continued availability and supply chain stability. Both parts maintain ROHS3 compliance and identical moisture sensitivity ratings, supporting equivalent environmental and regulatory requirements.

The minor variations in coil current (12 mA versus 14.5 mA), coil resistance (1 kOhms versus 825 Ohms), and release time (0.1 ms versus 0.2 ms) fall within acceptable design margins for SPST reed relay applications and do not compromise functional equivalence in standard switching circuit implementations.

Frequently Asked Questions (FAQ)

Q: Can the 9401-12-00 directly replace the 9301-12-00 in existing designs?

A: Yes. The 9401-12-00 maintains identical coil voltage, contact rating, switching voltage, and termination specifications. The component is a direct functional equivalent suitable for PCB assembly without design modification.

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

A: The 9401-12-00 draws 14.5 mA compared to 12 mA for the 9301-12-00. This 2.5 mA increase represents a minor variation within normal design tolerances for reed relay applications and does not affect circuit compatibility when proper power supply capacity is maintained.

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

A: Both relays maintain identical operate time of 0.4 ms. The 9401-12-00 exhibits a release time of 0.2 ms compared to 0.1 ms for the 9301-12-00. This 0.1 ms difference is negligible for standard switching applications and does not impact functional performance in typical circuit implementations.

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

A: Yes. Both the 9301-12-00 and 9401-12-00 are ROHS3 compliant with identical moisture sensitivity levels (MSL 2, 1 Year). Both components are REACH unaffected and classified under ECCN EAR99.

Q: Why is the 9401-12-00 preferred despite the obsolete status of the 9301-12-00?

A: The 9401-12-00 carries active product status, ensuring ongoing manufacturing and supply availability. For new designs and production continuity, the active substitute eliminates obsolescence risk while maintaining complete electrical and mechanical compatibility.

Q: Are the gull wing terminations identical between both parts?

A: Yes. Both components utilize gull wing termination style, ensuring compatibility with standard surface mount assembly processes and PCB footprints.