PS7142L-1A-A Solid State Relay - Equivalent & Substitute Parts

Part Overview

The PS7142L-1A-A is a Solid State Relay (SSR) manufactured by CEL, configured as a SPST-NO (1 Form A) relay in a 6-SMD package with gull wing termination. This component is rated for 200 mA load current at 0-400V AC/DC operation with a 1.2VDC input trigger voltage. The product is classified as obsolete, making equivalent substitute parts necessary for ongoing applications and new designs requiring similar functionality.

Substiute Parts

PS7142L-1A-A

CELIn Stock: 913PS7142L-1A-A Datasheet

Current PartRFQ

AQV203A

Panasonic Electric WorksIn Stock: 23593AQV203A Datasheet

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AQV204A

Panasonic Electric WorksIn Stock: 2707AQV204A Datasheet

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AQV253A

Panasonic Electric WorksIn Stock: 1635AQV253A Datasheet

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AQV254A

Panasonic Electric WorksIn Stock: 1424AQV254A Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the PS7142L-1A-A are grouped based on the following critical electrical and mechanical parameters that determine compatibility:

Mandatory Parameters for Substitution:

• Circuit configuration: SPST-NO (1 Form A)
• Package / Case: 6-SMD (0.300", 7.62mm)
• Termination style: Gull Wing
• Mounting type: Surface Mount
• Output type: AC, DC

Electrical Operating Parameters:

• Load voltage range tolerance
• Load current capability
• Input trigger voltage compatibility
• On-state resistance

All substitute parts listed maintain identical package geometry and circuit configuration. Variations in load current rating (200 mA vs. 150 mA) and maximum load voltage (250V vs. 400V) define specific substitution scenarios dependent on application requirements.

Parameter Comparison

Engineering Selection Recommendations

Direct Substitutes for 400V / 200mA Applications: AQV254A is the optimal substitute when full 400V load voltage with 200mA current is required. This part carries active product status with ROHS3 compliance, ensuring long-term supply availability and regulatory compliance. The 1.14VDC input trigger voltage is compatible with the PS7142L-1A-A nominal 1.2VDC specification.

High-Voltage 250V Capable Substitutes: AQV203A and AQV253A provide 200mA load current ratings at reduced 250V maximum load voltage. AQV253A operates at 1.14VDC input voltage, closely matching the original part's trigger characteristic. Both maintain active product status with ROHS3 compliance and represent suitable alternatives where 250V load voltage is sufficient.

150mA Reduced-Current Substitutes: AQV204A and AQV254A both carry 150mA load current ratings. These parts substitute the PS7142L-1A-A only in applications where 150mA load current satisfies circuit requirements. AQV254A additionally provides 400V load voltage capability, while AQV204A limits operation to 250V.

Compliance and Availability: All Panasonic Electric Works substitutes carry active product status, ensuring ongoing availability. All substitute parts are ROHS3 compliant or RoHS Compliant, supporting modern supply chain and environmental regulatory requirements.

Frequently Asked Questions (FAQ)

Q: Can AQV254A directly replace PS7142L-1A-A in my circuit? A: AQV254A substitutes the PS7142L-1A-A when your application operates within 150mA load current at 0-400V load voltage. The 1.14VDC input trigger voltage is compatible. If your circuit requires 200mA load current, AQV254A will not operate at rated current specifications.

Q: What is the difference between AQV203A and AQV253A? A: Both provide 200mA load current at 250V maximum load voltage. AQV203A operates at 2.3VDC input voltage, while AQV253A operates at 1.14VDC input voltage. AQV253A matches the PS7142L-1A-A input trigger voltage specification more closely.

Q: Why is load voltage different across substitutes? A: The specified load voltage range (250V vs. 400V) is an electrical characteristic determined by the solid state relay's internal semiconductor design. Applications requiring 400V load voltage operation must use AQV204A or AQV254A. Applications operating at 250V or below can use all four substitute parts.

Q: Are all substitutes compatible with my PCB footprint? A: Yes. All five parts (PS7142L-1A-A and four substitutes) share identical 6-SMD (0.300", 7.62mm) package geometry with gull wing termination. PCB footprints are directly compatible without modification.

Q: What does "active product status" mean for substitutes? A: Active product status indicates the manufacturer continues production and maintains the part in their active catalog. This ensures supply chain availability and long-term design support, contrasting with the PS7142L-1A-A which is classified as obsolete.

Q: Can I use AQV204A if I only need 250V operation? A: Yes. AQV204A is rated for 0-400V load voltage operation, which includes 250V. The part can be used in 250V applications. However, if you require 200mA load current at 250V, AQV203A or AQV253A are preferable as they provide full 200mA rating at that voltage.