Equivalent & Substitute Parts for Coto Technology 3660-12-52

Part Overview

The Coto Technology 3660-12-52 is a through-hole mounted reed relay with 3PST-NO contact form, rated for 250 mA at 12VDC coil voltage. This component is classified as obsolete, necessitating identification of active equivalent parts for ongoing production and maintenance applications. The 3600 series relay is designed for applications requiring low-power switching with fast response times and hermetic sealing characteristics typical of reed relay technology.

Substiute Parts

3660-12-52

Coto TechnologyIn Stock: 9863660-12-52 Datasheet

Current PartRFQ

2333-12-000

Coto TechnologyIn Stock: 15462333-12-000 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the obsolete 3660-12-52 is determined by strict equivalence across the following critical parameters:

Mandatory Matching Parameters:

• Coil Voltage: 12VDC
• Contact Form: 3PST-NO (3 Form A)
• Coil Type: Non Latching
• Termination Style: PC Pin
• Mounting Type: Through Hole
• Operating Temperature Range: -20°C ~ 85°C
• Must Operate Voltage: 9 VDC
• Must Release Voltage: 1 VDC

Allowable Variation Parameters:

• Contact Rating (Current): Substitute must equal or exceed 250 mA
• Switching Voltage: Substitute must equal or exceed 150VAC/150VDC
• Coil Current: Substitute may differ if within design tolerance
• Operate Time and Release Time: Substitute may differ within application requirements
• Coil Resistance: Substitute may differ based on coil design
• Seal Rating: Substitute may include enhanced sealing
• Product Status: Substitute must be Active

The Coto Technology 2333-12-000 meets all mandatory matching parameters and exceeds performance specifications in contact rating and switching voltage, qualifying it as a direct substitute.

Parameter Comparison

Engineering Selection Recommendations

The Coto Technology 2333-12-000 is the qualified substitute for the obsolete 3660-12-52. Selection is based on the following engineering criteria:

Product Status Alignment: The 2333-12-000 is classified as Active, ensuring continued availability and manufacturing support, whereas the 3660-12-52 is obsolete and subject to discontinuation.

Functional Equivalence: Both relays share identical coil voltage (12VDC), contact form (3PST-NO), and operational thresholds (9 VDC must-operate, 1 VDC must-release), ensuring direct functional compatibility in existing circuit designs.

Performance Enhancement: The 2333-12-000 provides superior electrical performance with doubled contact rating (500 mA versus 250 mA) and increased switching voltage capability (200VAC/200VDC versus 150VAC/150VDC), enabling operation in higher-power applications without circuit modification.

Compliance Status: Both components maintain REACH Unaffected status and achieve RoHS compliance (RoHS3 for the substitute), satisfying regulatory requirements for current manufacturing standards.

Mechanical Compatibility: Identical through-hole mounting and PC pin termination ensure direct board-level substitution without layout redesign.

Frequently Asked Questions (FAQ)

Q: Can the 2333-12-000 be used as a direct replacement for the 3660-12-52 in existing designs?

A: Yes. Both relays share identical coil voltage, contact form, and operational voltage thresholds. The 2333-12-000 provides enhanced electrical performance and is mechanically compatible with through-hole PCB layouts designed for the 3660-12-52.

Q: What is the primary difference between these two relays?

A: The 2333-12-000 provides doubled contact current rating (500 mA versus 250 mA) and increased switching voltage capability (200VAC/200VDC versus 150VAC/150VDC). The 2333-12-000 also features hermetic sealing and operates with faster response time (0.5 ms versus 0.75 ms).

Q: Will the higher coil current of the 2333-12-000 (12 mA versus 6 mA) affect circuit design?

A: Circuit design must account for the doubled coil current requirement. Driver circuits and power supply capacity must be evaluated to ensure adequate current delivery at 12VDC.

Q: Are there packaging differences between these parts?

A: The 3660-12-52 is supplied in standard packaging, while the 2333-12-000 is supplied in tray packaging. Both are through-hole components with PC pin termination suitable for automated assembly.

Q: What is the significance of the hermetic sealing on the 2333-12-000?

A: Hermetic sealing provides enhanced environmental protection, improving reliability in applications exposed to moisture or contamination. This is an enhancement over the base 3660-12-52 specification.

Q: Are both relays RoHS compliant?

A: Yes. The 3660-12-52 is RoHS Compliant, and the 2333-12-000 is ROHS3 Compliant, both satisfying current regulatory requirements for hazardous substance restrictions.

Q: Can the 2333-12-000 be used in applications requiring the exact 250 mA rating of the 3660-12-52?

A: Yes. The 2333-12-000 is rated for 500 mA, which exceeds the 250 mA requirement. Applications designed for 250 mA operation operate within the electrical specifications of the substitute.