ALA2F24 Equivalent & Substitute Parts

Part Overview

The ALA2F24 is a general purpose relay manufactured by Panasonic Electric Works, featuring a DPST-NO (2 Form A) contact configuration with a 24VDC coil. This through-hole mounted relay is designed for applications requiring 3A switching capacity at 125VAC maximum. The product is currently obsolete, making identification of functionally equivalent alternatives essential for system maintenance, repair, and legacy equipment support.

Substiute Parts

ALA2F24

Panasonic Electric WorksIn Stock: 734ALA2F24 Datasheet

Current PartRFQ

OSA-SS-224DM3,000

TE Connectivity Potter & Brumfield RelaysIn Stock: 15526OSA-SS-224DM3,000 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the ALA2F24 is determined by the following critical parameters:

• Coil voltage must be 24VDC
• Contact configuration must be DPST-NO (2 Form A)
• Current rating must be 3A minimum
• Mounting type must be through-hole with PC pin termination
• Coil type must be non-latching
• Operating temperature range must encompass the application requirements

The OSA-SS-224DM3,000 manufactured by TE Connectivity Potter & Brumfield Relays meets these core substitution criteria. Both relays share identical coil voltage, contact form, current rating, mounting type, and termination style. Both are sealed with flux protection and operate as non-latching relays with equivalent coil current specifications.

Parameter Comparison

Engineering Selection Recommendations

The OSA-SS-224DM3,000 is a direct functional equivalent for the obsolete ALA2F24. Both relays are RoHS compliant and carry equivalent regulatory approvals. The TE Connectivity substitute provides superior switching voltage capability (240VAC vs. 125VAC maximum), making it suitable for applications requiring higher voltage switching margins. The operating temperature range of the substitute (-30°C ~ 60°C) is narrower than the original (-40°C ~ 70°C); applications requiring operation below -30°C or above 60°C must verify compatibility with the substitute's temperature limits. Timing characteristics differ slightly: the substitute exhibits 20ms operate time versus 15ms for the original, and 10ms release time versus 15ms. These timing differences must be evaluated against application requirements. Both relays maintain equivalent coil voltage, current rating, and contact configuration, supporting direct PCB mounting replacement.

Frequently Asked Questions (FAQ)

Q: Can the OSA-SS-224DM3,000 directly replace the ALA2F24 on a PCB?

A: Yes. Both relays feature identical through-hole PC pin termination, DPST-NO contact configuration, 24VDC coil voltage, and 3A current rating. Physical pin compatibility and electrical function are equivalent.

Q: What are the key differences between these relays?

A: The primary differences are switching voltage capability (OSA-SS-224DM3,000 supports 240VAC vs. ALA2F24's 125VAC), operating temperature range (OSA-SS-224DM3,000: -30°C to 60°C vs. ALA2F24: -40°C to 70°C), and timing characteristics (OSA-SS-224DM3,000: 20ms operate/10ms release vs. ALA2F24: 15ms operate/15ms release).

Q: Are there temperature limitations with the substitute?

A: The OSA-SS-224DM3,000 operates between -30°C and 60°C. Applications requiring operation below -30°C or above 60°C must verify compatibility with these limits.

Q: Do both relays meet RoHS requirements?

A: Yes. The ALA2F24 is RoHS Compliant, and the OSA-SS-224DM3,000 is ROHS3 Compliant, both meeting current environmental standards.

Q: What is the impact of the timing differences?

A: The OSA-SS-224DM3,000 has a 5ms longer operate time (20ms vs. 15ms) and 5ms shorter release time (10ms vs. 15ms). Applications with strict timing requirements must evaluate whether these differences affect system performance.

Q: Are the coil specifications compatible?

A: Yes. Both relays have nearly identical coil specifications: 24VDC coil voltage, approximately 22mA coil current, 1.09-1.1 kOhms coil resistance, 18VDC must-operate voltage, and 1.2VDC must-release voltage.