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

Part Overview

The PS7160-2A-A 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. The PS7160-2A-A is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support, maintenance, and new production applications requiring this relay topology and electrical performance envelope.

Substiute Parts

PS7160-2A-A

CELIn Stock: 1228PS7160-2A-A Datasheet

Current PartRFQ

AQW216

Panasonic Electric WorksIn Stock: 15508AQW216 Datasheet

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AQW224N

Panasonic Electric WorksIn Stock: 15334AQW224N Datasheet

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PAA193

IXYS Integrated Circuits DivisionIn Stock: 1413PAA193 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the PS7160-2A-A is determined by strict alignment with the following critical parameters:

Mandatory Matching Parameters:

• Circuit configuration: SPST-NO (1 Form A) x 2 channels
• Package type: 8-DIP (0.300", 7.62mm)
• Mounting type: Through Hole
• Termination style: PC Pin
• Output type: AC and DC capability
• Load voltage range: Minimum 0V ~ 600V support

Allowable Variation Parameters:

• Input voltage: Substitute parts must operate at or below 1.2VDC nominal input
• Load current: Substitute parts must support minimum 90mA; higher ratings are acceptable
• On-state resistance: Substitute parts must not exceed 50 Ohms maximum; lower values are acceptable

The three substitute parts listed (AQW216, AQW224N, PAA193) meet the mandatory matching criteria. Variations in load current and on-state resistance are noted in the parameter comparison table below.

Parameter Comparison

Engineering Selection Recommendations

PAA193 (IXYS Integrated Circuits Division) is the primary substitute for PS7160-2A-A applications. This part matches the input voltage (1.2VDC), load voltage range (0V ~ 600V), and on-state resistance (50 Ohms maximum) identically to the original. The PAA193 exceeds the load current requirement at 100mA versus 90mA, providing additional margin. The PAA193 holds Active product status and carries ROHS3 compliance and REACH Unaffected certification, supporting modern supply chain and regulatory requirements.

AQW216 (Panasonic Electric Works) is a secondary substitute suitable for applications where load current requirements do not exceed 40mA. This part maintains the 0V ~ 600V load voltage range and operates at 1.14VDC input, which is compatible with 1.2VDC nominal designs. The AQW216 is Active status and ROHS3 compliant. The on-state resistance of 120 Ohms exceeds the original specification; this must be evaluated against circuit impedance requirements.

AQW224N (Panasonic Electric Works) is applicable only to applications where the load voltage range requirement is 0V ~ 400V or lower. This part is not suitable for designs requiring the full 0V ~ 600V range of the PS7160-2A-A. The AQW224N is Active status and RoHS compliant. Like the AQW216, the 40mA load current and 100 Ohms on-state resistance must be verified against application requirements.

Frequently Asked Questions (FAQ)

Q: Can AQW216 or AQW224N directly replace PS7160-2A-A in all applications?

A: No. Both Panasonic parts are rated for 40mA load current, which is below the PS7160-2A-A specification of 90mA. These substitutes are suitable only for applications where actual load current does not exceed 40mA. Additionally, AQW224N supports only 0V ~ 400V load voltage, making it unsuitable for designs requiring the full 600V range.

Q: What is the impact of higher on-state resistance in AQW216 and AQW224N?

A: The AQW216 and AQW224N have on-state resistance values of 120 Ohms and 100 Ohms respectively, compared to 50 Ohms for the PS7160-2A-A. Higher on-state resistance increases voltage drop across the relay contacts during conduction. For a 90mA load, the PS7160-2A-A produces a maximum voltage drop of 4.5V, while the AQW216 produces 10.8V. Circuit design must accommodate this increased voltage drop.

Q: Is PAA193 a direct replacement for PS7160-2A-A?

A: PAA193 is the closest functional equivalent. It matches the input voltage, load voltage range, and on-state resistance specifications. The 100mA load current rating exceeds the 90mA requirement, providing additional operational margin. Pin configuration and package dimensions are identical. Verification of pinout assignment is required before board-level substitution.

Q: What are the compliance differences between substitute parts?

A: PAA193 and AQW216 are ROHS3 compliant; AQW224N is RoHS compliant. PAA193 and AQW224N carry REACH Unaffected status, while AQW216 is REACH Unaffected and the original PS7160-2A-A is REACH Affected. For applications subject to REACH or RoHS regulations, PAA193 is the preferred substitute.

Q: Can these parts be used interchangeably on the same PCB?

A: Yes, all substitute parts use identical 8-DIP (0.300", 7.62mm) through-hole packaging with PC pin termination. Physical board compatibility is confirmed. However, electrical performance differences (load current rating, on-state resistance, load voltage range) must be validated against circuit requirements before substitution.

Q: What inventory status should influence part selection?

A: PAA193 has 1,321 pieces in stock; AQW216 has 15,400 pieces; AQW224N has 15,300 pieces. Panasonic parts offer significantly higher availability. For applications where load current and voltage requirements permit, AQW216 or AQW224N may be preferred for supply chain continuity.