OSA-SS-224DM5,000 Equivalent & Substitute Parts

Part Overview

The OSA-SS-224DM5,000 is a general purpose relay manufactured by TE Connectivity Potter & Brumfield Relays. This DPST-NO (2 Form A) relay operates on a 24VDC coil and is rated for 5A switching capacity. The device features through-hole mounting with PC pin termination and sealed flux protection. This part is classified as obsolete, necessitating identification of equivalent substitute components for ongoing system maintenance and new design implementations.

Substiute Parts

OSA-SS-224DM5,000

TE Connectivity Potter & Brumfield RelaysIn Stock: 859OSA-SS-224DM5,000 Datasheet

Current PartRFQ

ALA2PF24

Panasonic Electric WorksIn Stock: 2315ALA2PF24 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the OSA-SS-224DM5,000 is determined by strict equivalence across the following critical parameters:

Mandatory Matching Parameters:

• Coil Voltage: 24VDC
• Contact Form: DPST-NO (2 Form A)
• Contact Rating (Current): 5 A
• Mounting Type: Through Hole
• Termination Style: PC Pin
• Coil Type: Non Latching
• Must Operate Voltage: 18 VDC minimum
• Must Release Voltage: 1.2 VDC maximum
• Contact Material: Silver Tin Oxide (AgSnO)
• Seal Rating: Sealed - Flux Protection

The ALA2PF24 manufactured by Panasonic Electric Works meets all mandatory matching parameters and qualifies as a direct substitute for the OSA-SS-224DM5,000.

Parameter Comparison

Engineering Selection Recommendations

The ALA2PF24 is a direct functional equivalent to the OSA-SS-224DM5,000 for applications requiring a 24VDC DPST-NO general purpose relay with 5A contact rating and through-hole PC pin termination.

Compliance Considerations: Both parts are classified as obsolete and carry equivalent RoHS compliance status (ROHS3 Compliant for OSA-SS-224DM5,000; RoHS Compliant for ALA2PF24). Both parts share identical ECCN (EAR99) and HTSUS (8536.41.0020) classifications, indicating equivalent regulatory treatment.

Performance Characteristics: The ALA2PF24 provides enhanced switching voltage capability (277VAC maximum versus 240VAC for the original part) and an extended operating temperature range (-40°C to 70°C versus -30°C to 60°C). Operate time is 5 milliseconds faster (15 ms versus 20 ms), while release time is 5 milliseconds slower (15 ms versus 10 ms). Coil current and resistance values are functionally equivalent.

Certification Status: The ALA2PF24 carries approvals from CSA, TUV, UR, and VDE, providing additional third-party validation for applications requiring specific agency certifications.

Frequently Asked Questions (FAQ)

Q: Can the ALA2PF24 be used as a direct replacement for the OSA-SS-224DM5,000?

A: Yes. The ALA2PF24 meets all mandatory electrical and mechanical parameters: 24VDC coil voltage, DPST-NO contact form, 5A contact rating, through-hole mounting, PC pin termination, and sealed flux protection. Both parts use identical contact material (Silver Tin Oxide) and operate within the same voltage thresholds.

Q: Are there differences in switching performance between these relays?

A: The ALA2PF24 operates 5 milliseconds faster (15 ms versus 20 ms) but releases 5 milliseconds slower (15 ms versus 10 ms). For most general purpose applications, these timing differences are not significant. Applications with strict timing requirements should evaluate whether these differences affect system performance.

Q: What is the temperature operating range difference?

A: The ALA2PF24 operates across -40°C to 70°C, compared to -30°C to 60°C for the OSA-SS-224DM5,000. The substitute part provides 10°C additional low-temperature capability and 10°C additional high-temperature capability, making it suitable for a wider range of environmental conditions.

Q: Do both relays have the same coil current requirements?

A: Coil current values are functionally equivalent: 22.5 mA for the OSA-SS-224DM5,000 and 22.1 mA for the ALA2PF24. Coil resistance is also equivalent (1.1 kOhms versus 1.09 kOhms). Circuit design considerations for coil drive circuits remain unchanged.

Q: Are there compliance or certification differences?

A: Both parts are RoHS compliant and share identical ECCN and HTSUS classifications. The ALA2PF24 carries additional third-party approvals (CSA, TUV, UR, VDE), which may be required for specific applications or markets.

Q: Why is the OSA-SS-224DM5,000 listed as obsolete?

A: Product obsolescence indicates that the manufacturer has discontinued production. The ALA2PF24 provides functional continuity for applications currently using or requiring equivalent relay functionality.

Q: Can the ALA2PF24 handle higher switching voltages than the original part?

A: Yes. The ALA2PF24 is rated for 277VAC maximum switching voltage, compared to 240VAC for the OSA-SS-224DM5,000. This higher rating provides additional margin for applications operating at elevated AC voltages.

Q: Are the through-hole mounting and PC pin termination identical?

A: Both relays feature through-hole mounting with PC pin termination, ensuring mechanical and electrical compatibility with existing printed circuit board layouts designed for the OSA-SS-224DM5,000.