PS7342L-1A Solid State Relay SPST-NO 200mA 0-400V Equivalent & Substitute Parts

Part Overview

The PS7342L-1A is a solid state relay (SSR) manufactured by CEL, configured as a single-pole single-throw normally open (SPST-NO) device with a 200mA load current rating and 0-400V output voltage range. This component operates with a 1.2VDC input and features a 10 Ohm maximum on-state resistance in a 6-SMD surface mount package with gull wing termination.

The PS7342L-1A is classified as obsolete. Identifying equivalent and substitute parts is necessary to maintain design continuity, ensure supply chain availability, and support ongoing production or maintenance requirements for systems utilizing this component.

Substiute Parts

PS7342L-1A

CELIn Stock: 2367PS7342L-1A Datasheet

Current PartRFQ

PLA140LS

IXYS Integrated Circuits DivisionIn Stock: 2451PLA140LS Datasheet

DirectRFQ

AQV253HA

Panasonic Electric WorksIn Stock: 1593AQV253HA Datasheet

SimilarRFQ

AQV254A

Panasonic Electric WorksIn Stock: 1424AQV254A Datasheet

SimilarRFQ

AQV254HA

Panasonic Electric WorksIn Stock: 1834AQV254HA Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the PS7342L-1A is determined by the following critical parameters:

Primary Compatibility Criteria:

• Circuit configuration must be SPST-NO (1 Form A)
• Output type must support AC and DC operation
• Input voltage must be compatible with 1.2VDC control signal
• Load voltage range must encompass or match 0-400V specification
• Load current rating must meet or exceed 200mA requirement
• Package must be 6-SMD (0.300", 7.62mm) with gull wing termination
• Surface mount mounting type

Secondary Considerations:

• On-state resistance affects power dissipation and thermal performance
• RoHS and REACH compliance status for regulatory requirements
• Product status (active vs. obsolete) for long-term availability

Parts are grouped as direct substitutes when all primary criteria are satisfied. Parts with reduced load current ratings or lower voltage ratings are classified as similar substitutes with application-specific limitations.

Parameter Comparison

Engineering Selection Recommendations

Direct Substitute (Full Compatibility):

PLA140LS (IXYS Integrated Circuits Division) is the primary direct substitute for PS7342L-1A. This part maintains identical load current (200mA) and voltage range (0-400V) specifications. The input voltage (1.2VDC) matches the original design. The on-state resistance of 13 Ohms is slightly elevated compared to the original 10 Ohms, resulting in marginally higher power dissipation but remaining within acceptable operating parameters for equivalent thermal management. PLA140LS is ROHS3 compliant and carries active product status, ensuring long-term availability and regulatory compliance.

Similar Substitutes (Application-Dependent):

AQV253HA (Panasonic Electric Works) provides full 200mA load current compatibility but with a reduced maximum load voltage of 250V. This part is suitable for applications where the load voltage does not exceed 250V. The on-state resistance of 8 Ohms is superior to the original specification, providing lower power dissipation. ROHS3 compliance and active status support regulatory and supply chain requirements.

AQV254A and AQV254HA (Panasonic Electric Works) both support the full 0-400V load voltage range but with reduced load current rating of 150mA. These parts are suitable for applications where the load current does not exceed 150mA. Both maintain ROHS compliance and active product status. AQV254HA provides additional RoHS certification documentation compared to AQV254A.

Frequently Asked Questions (FAQ)

Q: Can PLA140LS directly replace PS7342L-1A without circuit modifications?

A: Yes. PLA140LS maintains identical load current (200mA), voltage range (0-400V), input voltage (1.2VDC), package (6-SMD), and termination style (gull wing). The 3 Ohm increase in on-state resistance does not require circuit redesign for equivalent thermal management in standard applications.

Q: What is the key limitation of AQV253HA as a substitute?

A: AQV253HA reduces the maximum load voltage from 400V to 250V. This part is suitable only for applications where the load voltage specification does not exceed 250V. Load current remains at 200mA, matching the original design.

Q: Why do AQV254A and AQV254HA have lower load current ratings?

A: Both Panasonic parts are rated for 150mA maximum load current, compared to the original 200mA specification. These parts are suitable for applications where the load current requirement does not exceed 150mA. Both maintain the full 0-400V load voltage range.

Q: Are all substitute parts RoHS compliant?

A: Yes. PLA140LS is ROHS3 compliant. AQV253HA and AQV254A are ROHS3 compliant. AQV254HA is RoHS compliant. The original PS7342L-1A is RoHS non-compliant. All active substitutes meet current regulatory requirements.

Q: What is the difference between AQV254A and AQV254HA?

A: Both parts are electrically identical with 150mA load current and 0-400V voltage range. AQV254HA carries explicit RoHS compliance certification, while AQV254A is listed as ROHS3 compliant. Both are functionally equivalent for circuit applications.

Q: Does the input voltage difference (1.2VDC vs. 1.14VDC) affect circuit design?

A: No. The 0.06VDC difference is within standard control signal tolerances. All substitute parts operate with standard logic-level input signals and do not require control circuit modifications.

Q: Are all substitute parts available in the same package configuration?

A: Yes. All substitute parts use 6-SMD (0.300", 7.62mm) surface mount packages with gull wing termination, matching the original PS7342L-1A footprint and assembly requirements.