7301-05-1001

Part Overview

The 7301-05-1001 is a reed relay manufactured by Coto Technology, designed for applications requiring low-power switching with a 500 mA contact rating at 5VDC coil voltage. The product is classified as obsolete, necessitating identification of functionally equivalent alternatives from current active product lines to maintain system compatibility and ensure procurement availability.

Substiute Parts

7301-05-1001

Coto TechnologyIn Stock: 10907301-05-1001 Datasheet

Current PartRFQ

SHV05-1A85-78D3K

Standex-Meder ElectronicsIn Stock: 18897SHV05-1A85-78D3K Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 7301-05-1001 is based on the following critical parameters that must be matched or exceeded:

Matched Parameters:

• Coil Voltage: 5VDC (exact match required for direct circuit compatibility)
• Contact Form: SPST-NO (1 Form A) (functional switching form must remain constant)
• Mounting Type: Through Hole (physical installation compatibility)
• Termination Style: PC Pin (board-level interconnection compatibility)
• Coil Type: Non Latching (operational behavior consistency)

Exceeded Parameters (Acceptable):

• Contact Rating (Current): Substitute must support ≥500 mA
• Switching Voltage: Substitute must support ≥500VAC/500VDC
• Operating Temperature Range: Substitute must cover the specified -20°C ~ 85°C minimum
• Coil Current: Minor deviations acceptable within circuit design tolerances
• Coil Resistance: Deviations acceptable within typical tolerance ranges
• Switching Timing: Minor deviations in operate/release times acceptable

The SHV05-1A85-78D3K from Standex-Meder Electronics qualifies as a functional substitute by meeting or exceeding all critical parameters while offering enhanced specifications and active product status.

Parameter Comparison

Engineering Selection Recommendations

The SHV05-1A85-78D3K is the designated substitute for the obsolete 7301-05-1001. This selection is supported by:

Product Status Advantage: The SHV05-1A85-78D3K maintains active product status with confirmed current inventory (18,841 pcs), ensuring uninterrupted supply chain availability compared to the obsolete 7301-05-1001.

Regulatory Compliance: Both parts maintain compliance with environmental and trade regulations (RoHS and REACH). The SHV05-1A85-78D3K carries ROHS3 certification, meeting the most current revision standard.

Functional Equivalence: The substitute matches all critical switching parameters including coil voltage, contact form, and mounting configuration. The enhanced contact rating (1 A versus 500 mA) and switching voltage (1000VAC/1000VDC versus 500VAC/500VDC) provide improved headroom for circuit operation without requiring design modifications.

Thermal Performance: The extended operating temperature range (-40°C ~ 100°C) exceeds the original specification (-20°C ~ 85°C), providing enhanced reliability in demanding environmental conditions.

Frequently Asked Questions (FAQ)

Q: Will the SHV05-1A85-78D3K function as a direct drop-in replacement for the 7301-05-1001? A: The SHV05-1A85-78D3K is functionally equivalent with identical coil voltage (5VDC), contact form (SPST-NO), mounting type (Through Hole), and termination style (PC Pin). Direct substitution is supported without circuit redesign.

Q: What are the key differences between the two relays? A: The SHV05-1A85-78D3K provides enhanced specifications: contact rating increased to 1 A (500 mA original), maximum switching voltage increased to 1000VAC/1000VDC (500VAC/500VDC original), and operating temperature range extended to -40°C ~ 100°C (-20°C ~ 85°C original). Coil current and resistance remain within comparable ranges.

Q: Are there packaging or inventory considerations for the substitute? A: The SHV05-1A85-78D3K is supplied in tube packaging with substantial active inventory (18,841 pcs), ensuring procurement availability. The original 7301-05-1001 is obsolete with no ongoing production.

Q: How do the switching times compare? A: Operate time increases marginally from 1 ms to 1.1 ms, and release time remains unchanged at 0.1 ms. These differences are negligible for standard relay switching applications and do not impact functional compatibility.

Q: Are both parts RoHS and REACH compliant? A: Both parts comply with environmental regulations. The 7301-05-1001 carries RoHS compliance, while the SHV05-1A85-78D3K carries the current ROHS3 certification. Both are REACH unaffected.

Q: What are the coil resistance and current specifications? A: The 7301-05-1001 operates at 175 Ohms with 28.6 mA coil current. The SHV05-1A85-78D3K operates at 180 Ohms with 27.8 mA coil current. These values remain compatible for standard 5VDC circuits with minimal performance variance.