PS7160-2A Solid State Relay SPST-NO Equivalent & Substitute Parts

Part Overview

The PS7160-2A is a solid state relay (SSR) manufactured by CEL, configured as a SPST-NO (Single Pole Single Throw - Normally Open) relay with dual channels in an 8-DIP package. This component operates with a 1.2VDC input signal and supports load voltages from 0V to 600V at 90mA maximum load current, with an on-state resistance of 50 Ohms maximum. The PS7160-2A is classified as obsolete product status. Identifying equivalent substitute parts is necessary to maintain design continuity and ensure component availability for new production runs, repairs, and legacy system support.

Substiute Parts

PS7160-2A

CELIn Stock: 1380PS7160-2A Datasheet

Current PartRFQ

AQW216

Panasonic Electric WorksIn Stock: 15508AQW216 Datasheet

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AQW216EH

Panasonic Electric WorksIn Stock: 33124AQW216EH Datasheet

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AQW224N

Panasonic Electric WorksIn Stock: 15334AQW224N Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the PS7160-2A solid state relay is determined by strict alignment of the following critical parameters:

Mandatory Compatibility Parameters:

• Circuit configuration: SPST-NO (1 Form A) x 2 channels
• Package type: 8-DIP (0.300", 7.62mm)
• Mounting type: Through Hole with PC Pin termination
• Output type: AC and DC load support
• Load voltage range: Minimum 0V ~ 600V capability
• Load current: Equal to or greater than 90mA
• Input voltage: Compatible with 1.2VDC control signal

Substitution Logic: All three substitute parts (AQW216, AQW216EH, AQW224N) share identical package geometry, circuit topology, and through-hole mounting characteristics with the PS7160-2A. However, load current and voltage ratings differ across the substitute group. The AQW216 and AQW216EH are direct functional equivalents with full 600V load voltage support but reduced load current (40mA). The AQW224N operates at reduced maximum load voltage (400V) with 40mA load current. Selection depends on whether the application load current requirement can be satisfied by the 40mA rating and whether 400V or 600V load voltage range is required.

Parameter Comparison

Engineering Selection Recommendations

AQW216 and AQW216EH Selection Criteria:

The AQW216 and AQW216EH are functionally equivalent Panasonic PhotoMOS™ solid state relays with active product status. Both maintain the full 600V load voltage range of the PS7160-2A. The primary design consideration is load current: both parts are rated for 40mA maximum load current, which is 55% of the PS7160-2A 90mA rating. Selection of AQW216 or AQW216EH is appropriate only when the application load current does not exceed 40mA. Both parts are RoHS3 compliant, addressing regulatory requirements that the obsolete PS7160-2A does not meet. AQW216EH offers higher inventory availability (33,100 pieces) compared to AQW216 (15,400 pieces).

AQW224N Selection Criteria:

The AQW224N is a Panasonic PhotoMOS™ solid state relay with active product status and RoHS compliance. This part reduces the maximum load voltage to 400V, making it suitable only for applications where the load voltage does not exceed 400V. Like AQW216 and AQW216EH, the AQW224N is limited to 40mA load current. The AQW224N includes RF output type designation and offers the lowest on-state resistance (100 Ohms) among the three substitutes.

Compliance Considerations:

All three substitute parts are manufactured by Panasonic Electric Works with active product status and RoHS compliance certifications. The PS7160-2A is RoHS non-compliant and obsolete. For new designs or production requiring regulatory compliance, any of the three Panasonic substitutes satisfy modern environmental and safety standards.

Frequently Asked Questions (FAQ)

Q: Can the AQW216 or AQW216EH directly replace the PS7160-2A in existing designs?

A: Direct replacement is possible only if the application load current does not exceed 40mA. The PS7160-2A supports 90mA load current; the AQW216 and AQW216EH support 40mA. If the existing design operates at or near 90mA, the substitute parts will not function correctly. Verify actual load current in the application before substitution.

Q: What is the difference between AQW216 and AQW216EH?

A: AQW216 and AQW216EH are electrically and functionally identical. Both are 8-DIP through-hole solid state relays with 40mA load current and 600V load voltage range. The primary difference is inventory availability: AQW216EH has significantly higher stock (33,100 pieces versus 15,400 pieces). Both are RoHS3 compliant and manufactured by Panasonic Electric Works.

Q: Why does the AQW224N have a lower maximum load voltage (400V vs 600V)?

A: The AQW224N is a different product variant within the Panasonic PhotoMOS™ AQW series, designed for applications with lower voltage requirements. The 400V maximum load voltage is a design specification of this part. Applications requiring 600V load voltage support must use AQW216 or AQW216EH instead.

Q: Are the input voltage specifications compatible between PS7160-2A and the Panasonic substitutes?

A: The PS7160-2A requires 1.2VDC input; the Panasonic substitutes require 1.14VDC input. Both specifications are compatible with standard 1.2V control signal sources. The 0.06V difference is within typical control circuit tolerances.

Q: What is the on-state resistance difference, and does it affect circuit performance?

A: The PS7160-2A has 50 Ohms maximum on-state resistance; AQW216 and AQW216EH have 120 Ohms; AQW224N has 100 Ohms. Higher on-state resistance increases voltage drop across the relay contacts during load current flow. For 40mA load current, AQW216/AQW216EH produce 4.8V drop; AQW224N produces 4.0V drop. Verify that the application load circuit tolerates these voltage drops.

Q: Can I use AQW224N if my application requires 600V load voltage?

A: No. The AQW224N is rated for maximum 400V load voltage. Using it in a 600V application exceeds the component specification and creates a reliability and safety risk. Use AQW216 or AQW216EH for 600V load voltage applications.

Q: What is the package compatibility between PS7160-2A and the substitute parts?

A: All parts use identical 8-DIP (0.300", 7.62mm) through-hole package with PC pin termination. PCB footprints and pin assignments are compatible. No PCB redesign is required for package substitution.