PS7200A-1A-A Equivalent & Substitute Parts

Part Overview

The PS7200A-1A-A is a solid-state relay (SSR) manufactured by CEL, configured as a SPST-NO (Single Pole Single Throw - Normally Open) device in a 4-SOP surface mount package. This component operates with a 1.2VDC input signal and supports load voltages from 0V to 40V with a maximum load current of 100mA, suitable for both AC and DC output applications.

The PS7200A-1A-A is classified as obsolete. Locating equivalent or substitute components is necessary to support ongoing maintenance, repair, and new design requirements where this part is specified or where inventory depletion necessitates alternative sourcing.

Substiute Parts

PS7200A-1A-A

CELIn Stock: 1187PS7200A-1A-A Datasheet

Current PartRFQ

AQY221N2S

Panasonic Electric WorksIn Stock: 1643AQY221N2S Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the PS7200A-1A-A is determined by strict equivalence across the following critical parameters:

Mandatory Matching Parameters:

• Circuit configuration: SPST-NO (1 Form A)
• Package type: 4-SOP (0.173", 4.40mm) with Gull Wing termination
• Load voltage range: 0V ~ 40V
• Output type: AC and DC capability
• Mounting type: Surface Mount

Allowable Parameter Variations:

• Input voltage: Substitute parts may operate at different input voltages (1.14VDC to 1.2VDC) provided the control circuit is compatible
• Load current: Substitute parts with equal or greater current rating (100mA or higher) are acceptable
• On-state resistance: Substitute parts with equal or lower maximum on-state resistance (≤12 Ohms) are acceptable
• Product status: Active products are preferred over obsolete classifications

The AQY221N2S meets all mandatory matching parameters and exceeds performance specifications in load current and on-state resistance, making it a direct substitute.

Parameter Comparison

Engineering Selection Recommendations

Primary Substitute: AQY221N2S

The AQY221N2S is the direct functional equivalent for the PS7200A-1A-A. Selection of this substitute is based on the following engineering criteria:

Mechanical Compatibility: Both components share identical package geometry (4-SOP, 0.173" / 4.40mm) and termination style (Gull Wing), ensuring direct PCB footprint compatibility without layout modifications.

Electrical Compatibility: The AQY221N2S meets or exceeds all critical electrical specifications. Load voltage range (0V ~ 40V) and circuit configuration (SPST-NO) are identical. The substitute provides higher load current capacity (120mA versus 100mA) and maintains equivalent on-state resistance performance (12.5 Ohms maximum versus 12 Ohms maximum).

Product Status and Compliance: The AQY221N2S is classified as Active, ensuring ongoing availability and manufacturing support. The component is RoHS3 Compliant and REACH Unaffected, providing superior regulatory compliance compared to the obsolete PS7200A-1A-A.

Input Voltage Consideration: The AQY221N2S operates at 1.14VDC input versus 1.2VDC for the PS7200A-1A-A. This lower input voltage requirement is advantageous and does not present compatibility issues in standard control circuits.

Frequently Asked Questions (FAQ)

Q: Can the AQY221N2S be used as a direct replacement for the PS7200A-1A-A without PCB modifications?

A: Yes. Both components use identical 4-SOP (0.173", 4.40mm) packages with Gull Wing termination. The footprint and pinout are compatible, requiring no PCB layout changes.

Q: What is the significance of the higher load current rating (120mA) on the AQY221N2S?

A: The AQY221N2S supports 120mA load current compared to 100mA on the PS7200A-1A-A. This higher rating provides additional design margin and allows the substitute to handle applications at or near the original component's maximum current specification without thermal stress.

Q: Does the lower input voltage (1.14VDC) of the AQY221N2S affect circuit operation?

A: No. The lower input voltage requirement of the AQY221N2S is compatible with standard control circuits. The component will operate reliably with input signals designed for 1.2VDC operation, as the voltage difference is within typical circuit tolerance margins.

Q: Are there any compliance or regulatory differences between the two components?

A: Yes. The AQY221N2S is RoHS3 Compliant and REACH Unaffected, providing superior regulatory status compared to the obsolete PS7200A-1A-A, which is REACH Affected. For new designs and applications subject to environmental regulations, the AQY221N2S is the preferred choice.

Q: What does the "RF" designation in the AQY221N2S output type specification indicate?

A: The "AC, DC (RF)" designation indicates that the AQY221N2S is suitable for radio frequency applications in addition to standard AC and DC switching. This enhanced capability does not affect compatibility with applications designed for the PS7200A-1A-A.

Q: Is the on-state resistance difference (12.5 Ohms versus 12 Ohms) significant?

A: The difference is marginal (0.5 Ohms). For most applications, this variation is negligible and does not affect circuit performance. In high-current or thermally sensitive applications, the difference should be evaluated against specific design requirements.

Q: What is the availability status of each component?

A: The PS7200A-1A-A is obsolete with limited inventory (1078 pieces reported in stock). The AQY221N2S is actively manufactured by Panasonic Electric Works with current inventory of 1560 pieces, ensuring reliable long-term sourcing for new and replacement applications.