PS7342-1A Solid State Relay SPST-NO Equivalent and Substitute Parts

Part Overview

The PS7342-1A is a Solid State SPST-NO (1 Form A) relay manufactured by CEL in a 6-DIP (0.300", 7.62mm) package configuration. This through-hole mounted component operates with a 1.2VDC input and supports loads from 0V to 400V at 200mA maximum with 10 Ohms maximum on-state resistance. The product is classified as obsolete, requiring identification of active equivalent alternatives for continued system support and new design implementations.

Substiute Parts

PS7342-1A

CELIn Stock: 2727PS7342-1A Datasheet

Current PartRFQ

AQV253H

Panasonic Electric WorksIn Stock: 3385AQV253H Datasheet

SimilarRFQ

AQV254

Panasonic Electric WorksIn Stock: 16788AQV254 Datasheet

SimilarRFQ

AQV254H

Panasonic Electric WorksIn Stock: 1370AQV254H Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the PS7342-1A are evaluated based on the following electrical and mechanical criteria:

Critical Parameters for Substitution:

• Circuit configuration: SPST-NO (1 Form A)
• Package/Case: 6-DIP (0.300", 7.62mm)
• Termination style: PC Pin
• Mounting type: Through Hole
• Output capability: AC and DC operation

Load Parameter Considerations: The PS7342-1A supports 200mA at 0-400V. Substitute parts are grouped by their ability to maintain electrical compatibility within these load specifications. Parts with reduced current ratings (150mA) remain viable where load requirements do not exceed their specifications. Voltage ratings determine the maximum operational envelope for the relay.

Available Substitutes:

• AQV253H (Panasonic Electric Works): Supports 200mA at 0-250V maximum
• AQV254 (Panasonic Electric Works): Supports 150mA at 0-400V
• AQV254H (Panasonic Electric Works): Supports 150mA at 0-400V

Parameter Comparison

Engineering Selection Recommendations

For applications requiring full 400V operation: AQV254 or AQV254H are the suitable choices, offering 400V load voltage capability. Both maintain the 6-DIP package footprint and through-hole termination required for direct board-level substitution. Both parts are active products with current RoHS compliance status (ROHS3).

For applications with 250V or lower load voltage requirements and 200mA current demand: AQV253H provides a direct functional match with 200mA load current capacity while maintaining 8 Ohms on-state resistance. This part is RoHS Compliant and classified as an active product.

For applications with 150mA or lower current requirements: AQV254 and AQV254H are compatible substitutes. The presence of two variants allows selection based on inventory and packaging requirements (both supplied in tube packaging).

Compliance Consideration: All substitute parts offer improved RoHS compliance compared to the PS7342-1A, supporting modern manufacturing and environmental standards.

Frequently Asked Questions (FAQ)

Q: Can AQV254 or AQV254H be used as direct replacements for PS7342-1A? A: These parts provide electrical and mechanical compatibility for applications with load currents of 150mA or less operating at 0-400V. The reduced current rating must be evaluated against actual application requirements.

Q: What is the primary advantage of AQV253H as a substitute? A: AQV253H maintains the 200mA load current specification of the original PS7342-1A while operating at reduced voltage (0-250V maximum). It is suitable for applications not exceeding 250V load voltage with full 200mA current requirements.

Q: Are the substitute parts pin-compatible with PS7342-1A? A: All substitute parts maintain the 6-DIP (0.300", 7.62mm) package configuration with PC Pin termination, providing board-level pin compatibility. Through-hole mounting specifications are identical across all parts listed.

Q: What is the impact of different on-state resistance values between the parts? A: The PS7342-1A specifies 10 Ohms maximum on-state resistance. AQV253H provides 8 Ohms (lower resistance), while AQV254 and AQV254H provide 16 Ohms (higher resistance). On-state resistance affects voltage drop across the relay contacts during conduction and must be evaluated against application power dissipation and circuit performance requirements.

Q: How do the input voltage requirements differ between the original part and substitutes? A: The PS7342-1A operates at 1.2VDC input while substitute parts operate at 1.14VDC input. Both voltage specifications are compatible with standard logic-level input circuits and do not restrict substitution feasibility.