Equivalent & Substitute Parts for Coto Technology 3501-12-711 Reed Relay

Part Overview

The Coto Technology 3501-12-711 is a single-pole, single-throw (SPST) reed relay designed for low-current switching applications at 12VDC. This component features a sealed hermetic package with 500 mA contact rating and 2 kΩ coil resistance. The main part is currently obsolete, necessitating identification of functionally equivalent active alternatives to maintain system continuity and procurement flexibility. The 3501-12-511 represents an active equivalent with identical electrical specifications and mechanical compatibility.

Substiute Parts

3501-12-711

Coto TechnologyIn Stock: 8083501-12-711 Datasheet

Current PartRFQ

3501-12-511

Coto TechnologyIn Stock: 10583501-12-511 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

The 3501-12-511 serves as a direct electrical and mechanical equivalent to the 3501-12-711. Substitution is valid based on the following matching parameters:

• Identical coil voltage specification (12VDC)
• Identical contact form configuration (SPST-NO)
• Identical contact current rating (500 mA)
• Identical coil current and resistance (6 mA, 2 kΩ)
• Identical switching voltage rating (200VAC, 200VDC maximum)
• Identical operate and release specifications (0.75 ms, 0.1 ms)
• Identical operating temperature range (-20°C to 85°C)
• Identical termination and mounting characteristics (PC Pin, Through Hole)
• Identical hermetic seal rating

The substitution differs only in product status (obsolete versus active) and packaging format (unmounted versus tube packaging). These differences do not affect functional compatibility in circuit operation.

Parameter Comparison

Engineering Selection Recommendations

The 3501-12-511 is the appropriate substitution for the obsolete 3501-12-711 based on complete electrical and mechanical parameter equivalence. The substitute part maintains active product status with confirmed available inventory of 1,041 pieces, ensuring procurement reliability.

Both components satisfy ROHS3 compliance, REACH unaffected status, and EAR99 export classification. The transition to the 3501-12-511 introduces tube packaging in place of the original format, a consideration for assembly operations but not a functional limitation.

Frequently Asked Questions (FAQ)

Q: Are the 3501-12-711 and 3501-12-511 functionally interchangeable in existing circuit designs?

A: Yes. All electrical specifications, contact ratings, coil characteristics, and switching performance parameters are identical between the two parts. Direct substitution occurs without circuit modification.

Q: What is the primary difference between these two part numbers?

A: The 3501-12-711 is obsolete with no active manufacturing status, while the 3501-12-511 is an active product with current inventory availability. Additionally, the 3501-12-511 is supplied in tube packaging format. Electrical and mechanical specifications are fully equivalent.

Q: Does the tube packaging of the 3501-12-511 affect compatibility?

A: Tube packaging affects material handling and assembly logistics but does not alter the component's electrical or mechanical operation. The component itself maintains identical termination style and mounting characteristics.

Q: What parameters must remain constant for relay substitution within the 3500 series?

A: Coil voltage, contact form configuration, current rating, switching voltage rating, coil resistance, and operating voltage thresholds must match. The 3501-12-511 maintains all these specifications identically to the 3501-12-711.

Q: Are there environmental or compliance differences between these parts?

A: Both parts are ROHS3 compliant, REACH unaffected, and classified under EAR99 export regulations. Both operate across the identical temperature range of -20°C to 85°C with MSL-1 moisture sensitivity classification.