ASX220A03 Equivalent & Substitute Parts

Part Overview

The ASX220A03 is a telecom relay manufactured by Panasonic Electric Works, featuring a dual-coil latching DPDT (2 Form C) configuration with 3VDC coil voltage and 10mA contact rating. This component is classified as obsolete, making identification of functionally equivalent alternatives essential for ongoing system support and new design implementations.

The telecom-grade design with silver palladium and gold contact materials provides reliable switching performance in telecommunications applications. Due to its obsolete status, sourcing equivalent relays with compatible electrical and mechanical characteristics is necessary for system continuity.

Substiute Parts

ASX220A03

Panasonic Electric WorksIn Stock: 1051ASX220A03 Datasheet

Current PartRFQ

V23079E1208B301

TE Connectivity Potter & Brumfield RelaysIn Stock: 9997V23079E1208B301 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

The V23079E1208B301 from TE Connectivity Potter & Brumfield Relays qualifies as a functional substitute based on the following critical parameters:

Matching Parameters:

• Coil Voltage: 3VDC (identical)
• Contact Form: DPDT (2 Form C) (identical)
• Coil Type: Latching, Dual Coil (identical)
• Mounting Type: Surface Mount (identical)
• Termination Style: Gull Wing (identical)

Substitution Basis: The V23079E1208B301 maintains electrical compatibility through identical coil voltage, contact configuration, and coil architecture. Both relays employ dual-coil latching mechanisms with 3VDC activation, ensuring functional interchangeability in circuit designs. The surface mount gull wing termination provides mechanical compatibility for PCB integration.

Operational Differences: The substitute part exhibits higher contact rating (2A versus 10mA), lower coil resistance (64 Ohms versus 129 Ohms), and extended operating temperature range (-40°C ~ 85°C versus -40°C ~ 70°C). These differences represent performance enhancements rather than incompatibilities, as the substitute can handle the original application's electrical requirements with additional margin.

Parameter Comparison

Engineering Selection Recommendations

The V23079E1208B301 is the designated substitute for the obsolete ASX220A03. Selection is based on:

Product Status Alignment: The V23079E1208B301 maintains active production status with 9984 units in stock, ensuring long-term availability compared to the obsolete ASX220A03.

Compliance Certification: The V23079E1208B301 carries RoHS Compliant certification and Moisture Sensitivity Level (MSL) 3 rating, meeting modern manufacturing and environmental standards. Both parts share identical ECCN (EAR99) and HTSUS (8536.41.0020) classifications.

Functional Equivalence: Identical coil voltage (3VDC), contact configuration (DPDT), and coil architecture (latching, dual coil) ensure direct functional replacement. The substitute's enhanced contact rating and switching voltage capability provide additional performance margin without requiring circuit redesign.

Thermal Performance: The extended operating temperature range (-40°C ~ 85°C) of the V23079E1208B301 exceeds the original specification, supporting broader environmental applications.

Frequently Asked Questions (FAQ)

Q: Can the V23079E1208B301 directly replace the ASX220A03 in existing designs?

A: Yes. Both relays share identical coil voltage (3VDC), contact form (DPDT), coil type (latching, dual coil), mounting type (surface mount), and termination style (gull wing). No circuit modifications are required.

Q: What are the key differences between these relays?

A: The V23079E1208B301 features higher contact rating (2A versus 10mA), lower coil resistance (64 Ohms versus 129 Ohms), faster switching times (4ms versus 5ms), and extended operating temperature range (-40°C ~ 85°C versus -40°C ~ 70°C). These represent performance enhancements.

Q: Why is the ASX220A03 obsolete?

A: The ASX220A03 is classified as obsolete by Panasonic Electric Works. The V23079E1208B301 provides an active, production-supported alternative with equivalent core functionality.

Q: Are the contact materials compatible?

A: Both relays employ gold (Au) as a primary contact material. The ASX220A03 uses silver palladium (AgPd) while the V23079E1208B301 uses silver nickel (AgNi) as secondary materials. Both material systems are suitable for telecommunications applications.

Q: What is the coil current difference, and does it affect circuit design?

A: The V23079E1208B301 requires 46.7mA coil current versus 23.3mA for the ASX220A03. Circuit designs must verify that drive circuitry can supply the higher current. The lower must-operate voltage (2.25VDC versus 2.4VDC) of the substitute provides improved activation margin.

Q: Are both relays RoHS compliant?

A: The V23079E1208B301 is RoHS Compliant with MSL 3 rating. The ASX220A03 RoHS status is not specified in the provided data.

Q: Can the V23079E1208B301 handle higher switching voltages than the ASX220A03?

A: Yes. The V23079E1208B301 supports 250VAC and 220VDC maximum switching voltage, compared to 10VDC for the ASX220A03. This capability enhancement allows use in higher-voltage applications.