Equivalent & Substitute Parts for Coto Technology 7201-05-1000

Part Overview

The Coto Technology 7201-05-1000 is a reed relay with SPST-NO (Single Pole Single Throw, Normally Open) contact configuration rated for 1A at 5VDC coil voltage. This component is classified as obsolete, which necessitates identification of functionally equivalent alternatives from active manufacturers. Reed relays in this specification class are used in applications requiring low-power switching with fast response times and high voltage isolation capability. The obsolete status of the 7201-05-1000 makes substitute part identification critical for design continuity and procurement planning.

Substiute Parts

7201-05-1000

Coto TechnologyIn Stock: 7967201-05-1000 Datasheet

Current PartRFQ

SHV05-1A85-78L3K

Standex-Meder ElectronicsIn Stock: 2143SHV05-1A85-78L3K Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the Coto Technology 7201-05-1000 is determined by strict equivalence across the following critical parameters:

Mandatory Matching Parameters:

• Coil Voltage: 5VDC
• Contact Form: SPST-NO (1 Form A)
• Contact Rating: 1 A minimum
• Mounting Type: Through Hole
• Termination Style: PC Pin
• Coil Type: Non Latching

Compatible Operating Parameters:

• Must Operate Voltage: 3.75 VDC or lower
• Must Release Voltage: 0.4 VDC or higher
• Operating Temperature Range: Must encompass or exceed -20°C ~ 85°C
• Switching Voltage: 500VAC/500VDC or higher

The Standex-Meder Electronics SHV05-1A85-78L3K meets all mandatory matching parameters and exceeds the switching voltage specification, making it a direct functional equivalent. The substitute part maintains identical coil voltage, contact configuration, current rating, and mounting characteristics while offering enhanced performance in switching voltage capability and operating temperature range.

Parameter Comparison

Engineering Selection Recommendations

The Standex-Meder Electronics SHV05-1A85-78L3K is a direct functional substitute for the obsolete Coto Technology 7201-05-1000. Selection of the substitute part is supported by the following factors:

Product Status: The Coto 7201-05-1000 is obsolete, while the Standex-Meder SHV05-1A85-78L3K maintains active product status, ensuring long-term availability and supply chain continuity.

Compliance Certifications: Both parts maintain RoHS compliance and REACH unaffected status. The substitute part carries ROHS3 certification, representing current regulatory compliance standards.

Electrical Equivalence: The substitute part maintains identical coil voltage (5VDC), contact configuration (SPST-NO), current rating (1A), and activation thresholds (3.75 VDC must operate). These parameters ensure direct functional replacement in existing circuit designs.

Performance Enhancement: The substitute part provides superior switching voltage capability (1000VAC/1000VDC versus 500VAC/500VDC), faster response times (1.1 ms operate, 0.1 ms release versus 2 ms and 1 ms), and extended operating temperature range (-40°C to 100°C versus -20°C to 85°C).

Mechanical Compatibility: Both parts utilize through-hole mounting with PC pin termination, enabling direct PCB footprint compatibility without layout modification.

Power Efficiency: The substitute part requires lower coil current (27.8 mA versus 71.4 mA), resulting in reduced power consumption and heat generation in the driving circuit.

Frequently Asked Questions (FAQ)

Q: Can the Standex-Meder SHV05-1A85-78L3K be used as a direct replacement for the Coto 7201-05-1000 without circuit modification?

A: Yes. Both parts share identical coil voltage (5VDC), contact configuration (SPST-NO), current rating (1A), mounting type (through-hole), and termination style (PC pin). The substitute part maintains equivalent activation thresholds and operates within the same voltage and temperature parameters for standard applications.

Q: What are the differences in coil current between these parts?

A: The Coto 7201-05-1000 requires 71.4 mA coil current, while the Standex-Meder SHV05-1A85-78L3K requires 27.8 mA. This difference results from the higher coil resistance in the substitute part (180 Ohms versus 70 Ohms). The lower current requirement in the substitute part reduces power dissipation and allows use of lower-capacity driver circuits.

Q: Does the higher must-release voltage of the substitute part affect circuit operation?

A: The Standex-Meder SHV05-1A85-78L3K has a must-release voltage of 0.5 VDC compared to 0.4 VDC for the Coto part. This 0.1 VDC difference is negligible in practical applications and does not affect circuit functionality for standard switching applications.

Q: What is the advantage of the faster response times in the substitute part?

A: The Standex-Meder SHV05-1A85-78L3K operates in 1.1 ms and releases in 0.1 ms, compared to 2 ms and 1 ms for the Coto part. Faster switching times enable higher frequency switching applications and reduce relay-induced delays in time-sensitive circuits.

Q: Are there packaging differences between these parts?

A: The Coto 7201-05-1000 is supplied in standard packaging, while the Standex-Meder SHV05-1A85-78L3K is supplied in tube packaging. Both maintain identical through-hole PC pin termination suitable for standard PCB assembly processes.

Q: Does the extended temperature range of the substitute part create compatibility issues?

A: No. The Standex-Meder SHV05-1A85-78L3K operating range of -40°C to 100°C encompasses the Coto part's range of -20°C to 85°C. The extended range provides additional design margin for applications in extreme temperature environments without affecting performance in standard temperature conditions.

Q: What is the significance of the higher switching voltage rating in the substitute part?

A: The Standex-Meder SHV05-1A85-78L3K supports 1000VAC/1000VDC switching versus 500VAC/500VDC for the Coto part. This higher rating provides additional safety margin and enables use in higher-voltage switching applications without component change.