PS7341-1A-A Solid State Relay SPST-NO Equivalent & Substitute Parts

Part Overview

The PS7341-1A-A is a solid state relay (SSR) manufactured by CEL in the PS/OCMOS series. This component is a single-pole, single-throw normally open (SPST-NO) relay rated for 150 mA load current across 0–400 V AC/DC output voltage with 1.2 VDC input control voltage. The device is packaged in a 6-DIP (0.300", 7.62mm) through-hole configuration with PC pin termination.

The PS7341-1A-A is classified as obsolete. Equivalent and substitute parts are necessary to maintain design continuity, ensure component availability, and support ongoing production and repair requirements for systems utilizing this relay specification.

Substiute Parts

PS7341-1A-A

CELIn Stock: 959PS7341-1A-A Datasheet

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AQV210EH

Panasonic Electric WorksIn Stock: 19226AQV210EH Datasheet

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AQV214EH

Panasonic Electric WorksIn Stock: 3045AQV214EH Datasheet

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AQV214H

Panasonic Electric WorksIn Stock: 1632AQV214H Datasheet

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AQW210EH

Panasonic Electric WorksIn Stock: 19047AQW210EH Datasheet

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AQW214EH

Panasonic Electric WorksIn Stock: 16484AQW214EH Datasheet

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AQY210EH

Panasonic Electric WorksIn Stock: 30207AQY210EH Datasheet

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AQY214EH

Panasonic Electric WorksIn Stock: 14771AQY214EH Datasheet

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AQY414EH

Panasonic Electric WorksIn Stock: 20208AQY414EH Datasheet

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PLA110L

IXYS Integrated Circuits DivisionIn Stock: 2065PLA110L Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the PS7341-1A-A is determined by the following critical parameters:

Primary Substitution Criteria:

• Circuit configuration: SPST-NO (1 Form A) only
• Output voltage rating: 0–400 V minimum
• Load current capacity: 150 mA minimum
• Input voltage: 1.2 VDC or compatible control voltage
• Package type: 6-DIP (0.300", 7.62mm) for direct pin-compatible replacement
• Mounting type: Through Hole
• Termination style: PC Pin

Substitution Logic:

Substitute parts are grouped into two categories based on package compatibility:

Category 1: Direct Pin-Compatible Substitutes (6-DIP Package) Parts maintaining the 6-DIP package format allow direct board-level replacement without PCB modification. These include the PLA110L (IXYS), AQV210EH, AQV214EH, and AQV214H (Panasonic Electric Works). All maintain SPST-NO circuit configuration, 0–400 V output voltage rating, and through-hole mounting.

Category 2: Functional Equivalents with Package Variation (4-DIP and 8-DIP Packages) Parts such as AQY210EH, AQY214EH (4-DIP) and AQW210EH, AQW214EH (8-DIP) provide equivalent electrical performance but require PCB layout modification due to different pin counts and spacing. The AQW series contains dual SPST-NO channels in an 8-DIP package, allowing single-channel operation with unused channels.

Exclusion Criteria: The AQY414EH is excluded from direct substitution due to SPST-NC (normally closed) circuit configuration, which is functionally incompatible with SPST-NO applications.

Parameter Comparison

Engineering Selection Recommendations

Direct Replacement (No PCB Modification Required):

The PLA110L (IXYS Integrated Circuits Division) is the primary direct substitute for the PS7341-1A-A. Both parts share identical input voltage (1.2 VDC), output voltage rating (0–400 V), load current (150 mA), and 6-DIP package configuration. The PLA110L exhibits superior on-state resistance (25 Ohms vs. 30 Ohms maximum), providing lower power dissipation. The PLA110L holds active product status and is RoHS3 compliant with REACH unaffected classification.

The AQV214EH and AQV214H (Panasonic Electric Works, PhotoMOS™ AQV series) are pin-compatible 6-DIP substitutes with 0–400 V output voltage rating matching the original specification. Both are active products with RoHS3 compliance. Load current is reduced to 120 mA, and on-state resistance is increased to 50 Ohms maximum. These parts are suitable for applications where the 150 mA load current requirement can be reduced to 120 mA.

The AQV210EH (Panasonic Electric Works) is a 6-DIP pin-compatible substitute with 130 mA load current capacity. Output voltage rating is limited to 0–350 V, making this part suitable only for applications not requiring the full 400 V output voltage range.

Functional Equivalents with Package Modification:

The AQY210EH and AQY214EH (Panasonic Electric Works, PhotoMOS™ AQY series) provide functional equivalence in a 4-DIP package. These parts require PCB layout modification due to reduced pin count. The AQY210EH supports 130 mA at 0–350 V; the AQY214EH supports 120 mA at 0–400 V. Both are active products with RoHS3 compliance.

The AQW210EH and AQW214EH (Panasonic Electric Works, PhotoMOS™ AQW series) are dual-channel SPST-NO relays in 8-DIP packages. Single-channel operation is achieved by utilizing one relay channel per application. The AQW210EH provides 120 mA at 0–350 V; the AQW214EH provides 100 mA at 0–400 V. Both are active products with RoHS3 compliance.

Compliance and Availability:

All recommended substitutes are active products with RoHS3 compliance and REACH unaffected status, ensuring regulatory compliance for new designs and ongoing production. The PLA110L offers the highest inventory availability among direct 6-DIP replacements (2,006 units in stock). Panasonic Electric Works substitutes provide significantly higher inventory levels across all package variants.

Frequently Asked Questions (FAQ)

Q: Can the PLA110L directly replace the PS7341-1A-A without PCB modification?

A: Yes. The PLA110L is a direct pin-compatible substitute with identical 6-DIP package configuration, 1.2 VDC input voltage, 0–400 V output voltage rating, and 150 mA load current capacity. No PCB modification is required.

Q: What is the difference between the AQV214EH and AQV214H?

A: Both parts are electrically and mechanically identical. The AQV214EH is supplied in tube packaging; the AQV214H is also supplied in tube packaging. Both are active products from Panasonic Electric Works with identical electrical specifications: 1.14 VDC input, 0–400 V output, 120 mA load current, and 50 Ohms maximum on-state resistance.

Q: Why is the AQV210EH not a complete substitute for the PS7341-1A-A?

A: The AQV210EH has a reduced output voltage rating of 0–350 V compared to the PS7341-1A-A specification of 0–400 V. This part is suitable only for applications operating within the 0–350 V range. Additionally, load current is reduced to 130 mA.

Q: Can I use an AQW214EH (8-DIP dual-channel relay) in place of the PS7341-1A-A?

A: The AQW214EH provides functional equivalence but requires PCB layout modification due to the 8-DIP package format versus the original 6-DIP. The AQW214EH contains two independent SPST-NO relay channels; one channel can be utilized for the application while the second channel remains unused. Load current per channel is 100 mA at 0–400 V, which is lower than the original 150 mA specification.

Q: What are the key electrical differences between the PLA110L and AQV214EH substitutes?

A: The PLA110L maintains the original 1.2 VDC input voltage and 150 mA load current with superior on-state resistance (25 Ohms). The AQV214EH operates at 1.14 VDC input with reduced load current (120 mA) and higher on-state resistance (50 Ohms). Both support 0–400 V output voltage. The PLA110L is preferred for applications requiring the full 150 mA load current specification.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All recommended substitute parts are RoHS3 compliant and REACH unaffected, ensuring regulatory compliance for new designs and production environments subject to these requirements.

Q: What is the advantage of the 4-DIP AQY series over the 6-DIP alternatives?

A: The 4-DIP AQY series (AQY210EH, AQY214EH) provides reduced package footprint, enabling space-constrained designs. However, PCB layout modification is required due to different pin configuration. Electrical performance is equivalent to corresponding 6-DIP variants.

Q: Can I use the AQY414EH as a substitute?

A: No. The AQY414EH is a SPST-NC (normally closed) relay, which is functionally incompatible with the PS7341-1A-A SPST-NO (normally open) specification. This part is excluded from substitution consideration.

Q: What inventory levels are available for the recommended substitutes?

A: The PLA110L has 2,006 units in stock. Among Panasonic Electric Works substitutes, the AQY210EH offers the highest availability at 30,100 units, followed by AQW214EH at 16,400 units and AQW210EH at 18,954 units. The AQV214EH has 3,015 units available.