ALA2F05 Equivalent & Substitute Parts

Part Overview

The ALA2F05 is a general purpose relay manufactured by Panasonic Electric Works, featuring a DPST-NO (2 Form A) contact configuration with a 5VDC coil. This through-hole mounted relay is designed for applications requiring 3A switching capacity at up to 125VAC. The part is currently obsolete, making equivalent substitutes necessary for ongoing production and maintenance applications.

Substiute Parts

ALA2F05

Panasonic Electric WorksIn Stock: 804ALA2F05 Datasheet

Current PartRFQ

OSA-SS-205DM3,000

TE Connectivity Potter & Brumfield RelaysIn Stock: 959OSA-SS-205DM3,000 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the ALA2F05 is determined by the following critical parameters:

• Coil voltage must be 5VDC
• Contact form must be DPST-NO (2 Form A)
• Contact rating must be 3A minimum
• Mounting type must be through hole with PC pin termination
• Coil resistance must be 47 Ohms
• Must operate and release voltage specifications must be met
• RoHS compliance status must be maintained

The OSA-SS-205DM3,000 from TE Connectivity Potter & Brumfield Relays meets all critical substitution criteria, with the exception of expanded switching voltage capability (240VAC, 30VDC vs. 125VAC) and modified operating temperature range (-30°C ~ 60°C vs. -40°C ~ 70°C).

Parameter Comparison

Engineering Selection Recommendations

The OSA-SS-205DM3,000 is a direct functional substitute for the ALA2F05 based on matching coil voltage, contact configuration, current rating, and termination style. The substitute part offers enhanced switching voltage capability and maintains RoHS compliance through ROHS3 certification.

Selection of the OSA-SS-205DM3,000 is appropriate for applications where the original ALA2F05 is no longer available. The substitute part's active product status ensures ongoing availability and supply chain continuity.

Applications operating within the OSA-SS-205DM3,000 temperature range (-30°C ~ 60°C) will experience full compatibility. Applications requiring operation below -30°C or above 60°C must evaluate the narrower temperature specification against system requirements.

Frequently Asked Questions (FAQ)

Q: Can the OSA-SS-205DM3,000 directly replace the ALA2F05 in existing designs?

A: Yes, the OSA-SS-205DM3,000 is a direct substitute for through-hole PCB applications. Both parts share identical coil voltage (5VDC), contact form (DPST-NO), current rating (3A), coil resistance (47 Ohms), and PC pin termination. Physical footprint compatibility must be confirmed for your specific PCB layout.

Q: What are the differences in switching voltage capability?

A: The ALA2F05 switches up to 125VAC maximum. The OSA-SS-205DM3,000 switches up to 240VAC or 30VDC maximum. This expanded capability in the substitute part does not create compatibility issues in applications using lower switching voltages.

Q: Are there temperature range considerations for substitution?

A: The ALA2F05 operates from -40°C to 70°C. The OSA-SS-205DM3,000 operates from -30°C to 60°C. Applications requiring operation below -30°C or above 60°C must evaluate whether the narrower range of the substitute part meets system requirements.

Q: How do the switching times compare?

A: The ALA2F05 has 15ms operate time and 15ms release time. The OSA-SS-205DM3,000 has 20ms operate time and 10ms release time. Applications with timing-critical switching requirements must evaluate these differences against system specifications.

Q: Are both parts RoHS compliant?

A: Yes. The ALA2F05 is RoHS Compliant. The OSA-SS-205DM3,000 is ROHS3 Compliant. Both meet RoHS requirements for new designs and applications.

Q: What is the coil current difference between these parts?

A: The ALA2F05 draws 106mA coil current. The OSA-SS-205DM3,000 draws 108mA coil current. This 2mA difference is negligible for most circuit designs and does not affect substitution suitability.