ASX21009 Equivalent & Substitute Parts

Part Overview

The ASX21009 is a telecom relay manufactured by Panasonic Electric Works, featuring a DPDT (2 Form C) contact configuration with a 9VDC coil. This component is designed for through-hole mounting applications requiring low-current switching at telecom voltage levels. The part is currently obsolete, making equivalent substitutes necessary for ongoing system maintenance and new design implementations where functional compatibility is required.

Substiute Parts

ASX21009

Panasonic Electric WorksIn Stock: 1178ASX21009 Datasheet

Current PartRFQ

V23079C1106B301

TE Connectivity Potter & Brumfield RelaysIn Stock: 1073V23079C1106B301 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the ASX21009 is determined by the following critical parameters:

• Contact Form: DPDT (2 Form C) configuration must be maintained for circuit compatibility
• Coil Voltage: 9VDC nominal operating voltage
• Mounting Type: Through-hole PC pin termination for PCB integration
• Coil Type: Latching, single-coil operation
• Operating Temperature Range: Minimum -40°C to 70°C coverage

The V23079C1106B301 qualifies as a functional substitute based on matching contact form, coil voltage, mounting type, and coil configuration. While the substitute exhibits higher contact current rating (2A vs. 10mA) and extended temperature range (-40°C to 85°C), these represent performance enhancements rather than incompatibilities. The substitute's higher switching voltage capability (250VAC, 220VDC) and improved coil efficiency do not compromise applications designed for the original 10mA, 10VDC specification.

Parameter Comparison

Engineering Selection Recommendations

The V23079C1106B301 is suitable for ASX21009 replacement applications based on the following factors:

Product Status: The ASX21009 is obsolete, while the V23079C1106B301 maintains active production status, ensuring long-term availability and supply chain continuity.

Compliance: Both components share identical ECCN classification (EAR99) and HTSUS codes (8536.41.0020), maintaining regulatory consistency. The V23079C1106B301 carries RoHS Compliant certification, meeting modern environmental standards.

Functional Compatibility: Matching DPDT contact form, 9VDC coil voltage, and through-hole PC pin termination ensure direct circuit integration without redesign. The substitute's lower must-operate voltage (6.75VDC vs. 7.2VDC) and faster switching times (4ms vs. 5ms) represent operational improvements.

Performance Margin: The substitute's 2A contact rating exceeds the original 10mA specification, providing design margin for applications operating within the original current envelope. The extended temperature range (-40°C to 85°C) accommodates broader environmental conditions.

Frequently Asked Questions (FAQ)

Q: Can the V23079C1106B301 directly replace the ASX21009 in existing PCB designs?

A: Yes. Both relays feature identical DPDT contact form, 9VDC coil voltage, and through-hole PC pin termination. No PCB modifications are required for mechanical or electrical integration.

Q: What are the key differences between these relays?

A: The primary differences are contact current rating (10mA vs. 2A), switching voltage capability (10VDC vs. 250VAC/220VDC), coil resistance (2.3kΩ vs. 1.16kΩ), and operating temperature range (-40°C to 70°C vs. -40°C to 85°C). The substitute offers higher performance specifications across all parameters.

Q: Does the higher coil current of the V23079C1106B301 (7.8mA vs. 3.9mA) affect circuit design?

A: The increased coil current must be accommodated by the drive circuit. Verify that the coil supply can deliver 7.8mA at 9VDC. The lower coil resistance (1.16kΩ vs. 2.3kΩ) of the substitute accounts for this difference.

Q: Are there packaging differences between these relays?

A: The ASX21009 is packaged individually, while the V23079C1106B301 is supplied in tube packaging. Both use identical through-hole PC pin termination suitable for standard PCB assembly processes.

Q: What is the significance of the contact material difference (AgPd/Au vs. AgNi/Au)?

A: Both contact materials are suitable for low-current telecom applications. Silver Nickel (AgNi) in the substitute provides equivalent reliability and switching performance for the specified 10mA load envelope.

Q: Is the faster switching time of the V23079C1106B301 (4ms vs. 5ms) a concern?

A: No. Faster switching represents an improvement. Applications designed for 5ms switching will operate correctly with 4ms response times.