ASX22003 Equivalent & Substitute Parts

Part Overview

The ASX22003 is a telecom relay manufactured by Panasonic Electric Works, featuring a DPDT (2 Form C) contact configuration with 10 mA contact rating and 3VDC coil voltage. This component is classified as obsolete, making identification of functionally equivalent alternatives necessary for ongoing system maintenance and new design implementations. The relay is designed for through-hole mounting with latching dual-coil operation and operates across the temperature range of -40°C to 70°C.

Substiute Parts

ASX22003

Panasonic Electric WorksIn Stock: 960ASX22003 Datasheet

Current PartRFQ

V23079B1208B301

TE Connectivity Potter & Brumfield RelaysIn Stock: 971V23079B1208B301 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the ASX22003 is based on the following critical parameters that must align across alternatives:

Primary Matching Criteria:

• Coil voltage: 3VDC
• Contact form: DPDT (2 Form C)
• Coil type: Latching, dual coil
• Mounting type: Through hole
• Termination style: PC pin

Secondary Compatibility Factors:

• Must operate voltage at or below 2.4 VDC
• Operating temperature range encompassing -40°C minimum
• Contact material compatibility with existing circuit requirements

The V23079B1208B301 from TE Connectivity Potter & Brumfield Relays satisfies all primary matching criteria. While this substitute exhibits higher contact rating (2 A versus 10 mA) and broader switching voltage capability (250VAC, 220VDC versus 10VDC), these represent performance enhancements rather than incompatibilities. The substitute maintains identical coil voltage, contact configuration, coil type, and mounting specifications.

Parameter Comparison

Engineering Selection Recommendations

The V23079B1208B301 is an active product with ROHS3 compliance, providing regulatory advantage over the obsolete ASX22003. Both components share identical REACH and ECCN classifications, ensuring equivalent export and environmental compliance status.

The substitute demonstrates faster switching performance (4 ms operate and release time versus 5 ms), lower must-operate voltage (2.25 VDC versus 2.4 VDC), and extended upper operating temperature limit (85°C versus 70°C). These characteristics represent functional improvements within the same electrical interface specification.

The higher contact rating (2 A versus 10 mA) and expanded switching voltage range (250VAC, 220VDC versus 10VDC) of the substitute provide additional design margin for applications requiring increased current handling or higher voltage switching capability. The lower coil resistance (64 Ohms versus 129 Ohms) results in proportionally higher coil current draw (46.7 mA versus 23.3 mA), which must be accommodated by the driving circuit.

Frequently Asked Questions (FAQ)

Q: Can the V23079B1208B301 directly replace the ASX22003 in existing PCB designs?

A: Direct replacement is possible from a mechanical and electrical interface perspective. Both components feature identical through-hole PC pin termination, DPDT contact configuration, and 3VDC coil voltage. However, the higher coil current requirement (46.7 mA versus 23.3 mA) must be verified against the existing drive circuit capability. Coil resistance differences (64 Ohms versus 129 Ohms) will affect switching characteristics and power dissipation.

Q: What are the key differences in contact performance between these relays?

A: The ASX22003 is rated for 10 mA maximum contact current with 10VDC maximum switching voltage. The V23079B1208B301 is rated for 2 A contact current with 250VAC or 220VDC maximum switching voltage. The substitute provides significantly higher current and voltage handling capability. Contact material differs: ASX22003 uses Silver Palladium/Gold while V23079B1208B301 uses Silver Nickel/Gold.

Q: Are there temperature range considerations for substitution?

A: The ASX22003 operates from -40°C to 70°C. The V23079B1208B301 extends the upper limit to 85°C. For applications operating near or above 70°C, the substitute provides additional thermal margin. Both components maintain the same -40°C lower operating limit.

Q: How do the switching times compare?

A: The V23079B1208B301 operates faster with 4 ms operate and release times compared to 5 ms for the ASX22003. This 1 ms improvement may be significant in time-critical switching applications.

Q: What compliance advantages does the substitute offer?

A: The V23079B1208B301 is ROHS3 compliant and carries active product status, whereas the ASX22003 is obsolete. Both maintain identical REACH Unaffected and EAR99 ECCN classifications. The substitute provides regulatory compliance assurance for new designs and long-term availability.