PS7341C-1A-A Solid State Relay SPST-NO Equivalent & Substitute Parts

Part Overview

The PS7341C-1A-A is a Solid State Relay (SSR) manufactured by CEL, configured as a Single Pole Single Throw Normally Open (SPST-NO) device in a 6-DIP package. This component operates with a 1.2VDC input signal and switches loads up to 120mA across 0-400V AC/DC applications. The PS7341C-1A-A is classified as obsolete, making equivalent substitute parts necessary for new designs and ongoing production requirements.

Substiute Parts

PS7341C-1A-A

CELIn Stock: 2609PS7341C-1A-A Datasheet

Current PartRFQ

AQY210HL

Panasonic Electric WorksIn Stock: 29611AQY210HL Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the PS7341C-1A-A is determined by the following critical parameters:

Mandatory Matching Criteria:

• Circuit configuration: SPST-NO (1 Form A)
• Output type: AC/DC switching capability
• Load current rating: 120mA minimum
• Termination style: PC Pin through-hole mounting
• Mounting type: Through Hole DIP package

Allowable Parameter Variations:

• Input voltage: Substitute may operate at lower input voltage (1.14VDC acceptable for 1.2VDC requirement)
• Load voltage range: Substitute may have reduced maximum voltage rating (350V acceptable for 400V application if load voltage is within substitute rating)
• On-state resistance: Substitute with lower resistance (25 Ohms vs. 35 Ohms maximum) provides improved performance
• Package footprint: DIP package variants with same 0.300" (7.62mm) pitch are compatible with PCB layouts designed for 6-DIP, provided pin count and pinout alignment are verified

The AQY210HL meets these substitution criteria with functional equivalence in circuit operation, load handling, and through-hole mounting compatibility.

Parameter Comparison

Engineering Selection Recommendations

Primary Substitute: AQY210HL

The AQY210HL is the designated equivalent for PS7341C-1A-A applications based on the following engineering factors:

1. Functional Equivalence: Both parts provide SPST-NO switching with 120mA load current capacity and AC/DC output type. Input voltage compatibility is maintained (1.14VDC substitute operates reliably with 1.2VDC signal levels).

2. Product Status: The PS7341C-1A-A is obsolete, creating supply chain risk. The AQY210HL is in active production status, ensuring continued availability and manufacturing consistency.

3. Regulatory Compliance: The AQY210HL is ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory requirements. The PS7341C-1A-A is REACH affected, indicating potential future supply restrictions.

4. Performance Improvement: The AQY210HL provides lower on-state resistance (25 Ohms vs. 35 Ohms maximum), resulting in reduced power dissipation and improved thermal performance.

Application Constraints:

• Load voltage applications must not exceed 350V. If the original design requires operation above 350V, the AQY210HL is not suitable.
• PCB layout modification is required due to package change from 6-DIP to 4-DIP. Pin count reduction from 6 to 4 pins necessitates circuit board redesign and verification of pinout alignment.

Frequently Asked Questions (FAQ)

Q: Can the AQY210HL directly replace the PS7341C-1A-A without PCB modification?

A: No. The AQY210HL uses a 4-DIP package while the PS7341C-1A-A uses a 6-DIP package. Although both maintain 0.300" (7.62mm) pitch, the reduced pin count requires PCB layout modification. Pinout verification is mandatory before implementation.

Q: What is the maximum load voltage for the AQY210HL?

A: The AQY210HL is rated for 0V to 350V load voltage. The PS7341C-1A-A supports 0V to 400V. Applications requiring operation above 350V cannot use the AQY210HL as a substitute.

Q: Are the input voltage specifications compatible?

A: Yes. The AQY210HL operates at 1.14VDC input, which is lower than the PS7341C-1A-A specification of 1.2VDC. A 1.2VDC input signal will reliably trigger the AQY210HL. The substitute has improved input voltage sensitivity.

Q: What is the significance of the on-state resistance difference?

A: The AQY210HL has a maximum on-state resistance of 25 Ohms compared to 35 Ohms for the PS7341C-1A-A. Lower resistance reduces voltage drop across the relay contacts and decreases power dissipation, improving overall circuit efficiency.

Q: Does the AQY210HL meet current environmental standards?

A: Yes. The AQY210HL is ROHS3 compliant and REACH unaffected. The PS7341C-1A-A is REACH affected, indicating potential future regulatory restrictions on supply and use.

Q: What is the load current capacity of both parts?

A: Both the PS7341C-1A-A and AQY210HL are rated for 120mA maximum load current. This parameter is identical between the main part and substitute.

Q: Is the AQY210HL suitable for AC and DC load switching?

A: Yes. The AQY210HL output type is AC/DC, providing equivalent switching capability to the PS7341C-1A-A for both alternating and direct current applications.

Q: What packaging format is the AQY210HL supplied in?

A: The AQY210HL is supplied in Tube packaging. The PS7341C-1A-A packaging format is not specified in the provided data.