PS7341L-1A-A

Part Overview

The PS7341L-1A-A is a solid state relay (SSR) manufactured by CEL, designed for SPST-NO switching applications with a load current capacity of 150 mA across a voltage range of 0–400 V. This device features a 6-SMD gull wing package suitable for surface mount applications. The part is currently marked as obsolete, necessitating equivalent alternative components for new designs and ongoing production requirements. This reference provides direct and functionally similar substitutes that meet the electrical and mechanical specifications required for system compatibility.

Substiute Parts

PS7341L-1A-A

CELIn Stock: 1201PS7341L-1A-A Datasheet

Current PartRFQ

PLA110S

IXYS Integrated Circuits DivisionIn Stock: 752PLA110S Datasheet

DirectRFQ

AQV210EHA

Panasonic Electric WorksIn Stock: 1523AQV210EHA Datasheet

SimilarRFQ

AQV214EHA

Panasonic Electric WorksIn Stock: 2033AQV214EHA Datasheet

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AQV214HA

Panasonic Electric WorksIn Stock: 1477AQV214HA Datasheet

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AQW210EHA

Panasonic Electric WorksIn Stock: 5520AQW210EHA Datasheet

SimilarRFQ

AQW214EHA

Panasonic Electric WorksIn Stock: 2323AQW214EHA Datasheet

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AQY210EHA

Panasonic Electric WorksIn Stock: 77852AQY210EHA Datasheet

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AQY214EHA

Panasonic Electric WorksIn Stock: 2144AQY214EHA Datasheet

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PLA110LSTR

IXYS Integrated Circuits DivisionIn Stock: 30491PLA110LSTR Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the PS7341L-1A-A is based on three categories of equivalence determined by the following key electrical and mechanical parameters:

Direct Equivalents maintain identical specifications across all critical parameters: input voltage (1.2 V DC), load voltage range (0–400 V), load current (150 mA), package configuration (6-SMD), and mounting method (surface mount gull wing). These parts are pin-compatible and functionally interchangeable.

Functional Equivalents with Minor Parameter Variations retain the same circuit configuration (SPST-NO), package footprint (6-SMD), mounting style (surface mount gull wing), and load voltage capability (0–400 V) but exhibit variations in load current capacity, input voltage requirements, or on-state resistance. These substitutes are compatible when system requirements allow for the specified deviations.

Similar Configuration Alternatives share the same circuit topology and mounting method but differ in package configuration (such as dual-channel 8-SMD variants or compact 4-SMD designs) or load voltage limitations (0–350 V versus 0–400 V). These parts require footprint verification during board redesign or layout review.

Parameter Comparison

Engineering Selection Recommendations

Direct Replacement Path: The PLA110S and PLA110LSTR from IXYS Integrated Circuits Division are the optimal substitutes for the PS7341L-1A-A. Both maintain identical input voltage (1.2 V DC), load voltage range (0–400 V), load current (150 mA), and package configuration (6-SMD surface mount gull wing). Both devices hold active product status and ROHS3 compliance, ensuring long-term availability and regulatory alignment. The PLA110LSTR offers tape and reel packaging suitable for high-volume production, while the PLA110S is available in tube packaging for smaller quantities.

Secondary Alternatives with Load Current Reduction: The Panasonic Electric Works AQV214EHA and AQV214HA maintain the same 6-SMD package footprint and full 0–400 V load voltage capability. These parts operate at slightly lower input voltage (1.14 V DC) and reduced load current (120 mA). Selection of these alternatives is appropriate when system current demands do not exceed 120 mA.

Package Configuration Alternatives: The AQY series (4-SMD package) and AQW series (8-SMD dual-channel configuration) provide functionally equivalent switching performance with different form factors. The AQY214EHA supports the full 0–400 V range with 120 mA load current in a compact 4-SMD package. The AQW214EHA provides dual independent switches in an 8-SMD package with 100 mA per channel and 0–400 V load voltage capability. These alternatives require board layout modifications and are suitable for new design implementations.

Load Voltage Limitation Consideration: The AQV210EHA and AQY210EHA limit load voltage to 0–350 V. Selection of these parts is valid only when system maximum load voltage does not exceed 350 V.

All recommended alternatives carry active product status and ROHS3 compliance, supporting both immediate production needs and long-term supply chain stability.

Frequently Asked Questions (FAQ)

Q: What is the critical difference between PLA110S and PLA110LSTR?

A: Both parts are electrically and mechanically identical. The distinction lies in packaging: PLA110S is supplied in tube form suitable for smaller orders, while PLA110LSTR is supplied in tape and reel format optimized for automated assembly and high-volume production environments.

Q: Can I substitute the PS7341L-1A-A with an AQV214EHA directly?

A: Functional substitution is possible with design constraints. The AQV214EHA has identical 6-SMD gull wing package and 0–400 V load voltage capability, making it pin-compatible. However, its load current is rated at 120 mA versus the original 150 mA. Substitution is valid only if your system current requirements do not exceed 120 mA.

Q: Why are the AQY series parts listed as alternatives if they use a 4-SMD package?

A: The AQY series offers identical electrical functionality and surface mount characteristics but with a smaller 4-SMD footprint. These parts require PCB layout modification but provide a more compact solution. The AQY214EHA matches the 0–400 V load voltage and supports 120 mA load current.

Q: What does the load voltage range 0–400 V mean?

A: This specification indicates the SSR can switch both AC and DC loads from zero volts up to 400 volts maximum. The device is suitable for both low-voltage control applications and high-voltage industrial switching. Parts with 0–350 V ratings are limited to maximum 350 V applications.

Q: Are all recommended substitutes RoHS compliant?

A: Yes. All active alternative parts listed carry either ROHS3 Compliant or RoHS Compliant status, ensuring compliance with environmental and hazardous substance restrictions. The original PS7341L-1A-A is marked as REACH Affected due to its obsolete status; active alternatives eliminate this concern.

Q: Can I use the dual-channel AQW series in place of the single-channel PS7341L-1A-A?

A: The AQW series provides dual independent SPST-NO switches in an 8-SMD package. While electrically capable of single-channel operation, board redesign is required due to the different package footprint and additional leads. This approach is most suitable for new designs where dual switching capability is beneficial.

Q: What is on-state resistance and why does it vary between substitutes?

A: On-state resistance is the electrical resistance through the SSR when activated. Lower values (PLA110LSTR at 25 Ω, AQY210EHA at 25 Ω) result in less heat generation at equivalent load currents. Higher values (AQV214EHA at 50 Ω) produce more heat. Verify that thermal characteristics remain acceptable for your application when selecting alternatives with different on-state resistance values.

Q: How do I determine which substitute is appropriate for my application?

A: Verify three key parameters against your system requirements: (1) required load voltage maximum—does not exceed 350 V or 400 V as specified; (2) required load current—does not exceed the part's rated current; (3) required input voltage—the part operates at your available control voltage. Match these constraints to the parameter comparison table to identify compatible options.