Equivalent & Substitute Parts for Coto Technology 3660-05-52 Reed Relay

Part Overview

The Coto Technology 3660-05-52 is a through-hole mounted reed relay with 3PST-NO contact configuration, rated for 250 mA switching current at 5VDC coil voltage. This component is classified as obsolete, necessitating identification of functionally equivalent alternatives for ongoing design support and procurement continuity. The 3660 series relay provides non-latching operation suitable for general-purpose switching applications requiring low coil current and compact form factor.

Substiute Parts

3660-05-52

Coto TechnologyIn Stock: 10363660-05-52 Datasheet

Current PartRFQ

3650-05-82

Coto TechnologyIn Stock: 9863650-05-82 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

The Coto Technology 3650-05-82 reed relay qualifies as a direct substitute for the 3660-05-52 based on electrical and mechanical parameter equivalence. Substitution is valid when the following criteria are met:

Critical Matching Parameters:

• Coil voltage: 5VDC
• Contact form: 3PST-NO (3 Form A)
• Contact current rating: 250 mA
• Switching voltage: 150VAC, 150VDC - Max
• Coil current: 14.3 mA
• Coil resistance: 350 Ohms
• Mounting type: Through Hole
• Termination style: PC Pin
• Operating temperature range: -20°C ~ 85°C
• Timing characteristics: 0.75 ms operate time, 0.1 ms release time
• Voltage thresholds: 3.8 VDC must operate, 0.4 VDC must release

The 3650-05-82 maintains identical electrical performance and mechanical compatibility with the obsolete 3660-05-52, enabling direct circuit board substitution without design modification.

Parameter Comparison

Engineering Selection Recommendations

The Coto Technology 3650-05-82 is the appropriate substitute for the obsolete 3660-05-52 reed relay. Selection is based on the following factors:

Product Status: The 3650-05-82 maintains active product status with current manufacturing support, whereas the 3660-05-52 is classified as obsolete. This ensures long-term availability and supply chain continuity.

Regulatory Compliance: Both components maintain ROHS3 compliance and REACH unaffected status, satisfying environmental and regulatory requirements for equivalent substitution.

Electrical and Mechanical Equivalence: All critical parameters including coil voltage, contact configuration, current rating, switching voltage, timing characteristics, and operating temperature range are identical between the two parts. This equivalence permits direct substitution without circuit redesign or performance degradation.

Packaging Consideration: The substitute part is supplied in tube packaging rather than bulk format. This represents a packaging change only and does not affect electrical or mechanical compatibility.

Frequently Asked Questions (FAQ)

Q: Can the 3650-05-82 be used as a direct replacement for the 3660-05-52 without circuit modification?

A: Yes. The 3650-05-82 provides identical electrical performance and mechanical compatibility. All coil voltage, contact rating, switching voltage, timing, and operating parameters match the original specification. Direct substitution on the printed circuit board is supported.

Q: What is the primary reason for substituting the 3660-05-52?

A: The 3660-05-52 is classified as obsolete. The 3650-05-82 is an active product with current manufacturing support, ensuring procurement availability and supply chain reliability.

Q: Are there differences in packaging between these parts?

A: Yes. The 3660-05-52 is supplied in bulk packaging, while the 3650-05-82 is supplied in tube packaging. This represents a packaging format change only and does not affect component performance or circuit board installation.

Q: Do both parts meet the same regulatory standards?

A: Yes. Both the 3660-05-52 and 3650-05-82 are ROHS3 compliant and REACH unaffected, satisfying equivalent environmental and regulatory requirements.

Q: Are the coil resistance and current draw identical?

A: Yes. Both parts have 350 Ohms coil resistance and 14.3 mA coil current draw. Power supply and drive circuit requirements remain unchanged.

Q: What are the switching voltage limits for the 3650-05-82?

A: The 3650-05-82 supports maximum switching voltage of 150VAC and 150VDC, identical to the 3660-05-52. Contact rating is 250 mA for both parts.

Q: Is the operating temperature range the same?

A: Yes. Both parts operate across the temperature range of -20°C to 85°C with identical must-operate and must-release voltage thresholds.