PS7200A-1A Solid State Relay - Equivalent & Substitute Parts

Part Overview

The PS7200A-1A is a SPST-NO (1 Form A) solid state relay manufactured by CEL in a 4-SOP surface mount package. This device is classified as obsolete, necessitating the identification of functionally equivalent substitute components for ongoing design support and procurement continuity. The PS7200A-1A provides switching capability for 0-40V loads at 100mA with a control voltage of 1.2VDC.

Substiute Parts

PS7200A-1A

CELIn Stock: 1555PS7200A-1A Datasheet

Current PartRFQ

CPC1035N

IXYS Integrated Circuits DivisionIn Stock: 4218CPC1035N Datasheet

DirectRFQ

AQY221N2S

Panasonic Electric WorksIn Stock: 1643AQY221N2S Datasheet

SimilarRFQ

LH1546AEF

Vishay Semiconductor Opto DivisionIn Stock: 7652LH1546AEF Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the PS7200A-1A is determined by strict compatibility across the following critical parameters: circuit configuration (SPST-NO), mounting type (surface mount), termination style (gull wing), and control voltage threshold (1.2VDC nominal). Load voltage handling capacity and load current rating define two substitution categories:

Category A - Direct Load Voltage Compatibility: Parts rated for 0-40V loads maintain voltage equivalence with the original PS7200A-1A specification.

Category B - Enhanced Load Voltage Capability: Parts rated for higher load voltages (0-350V) provide functional substitution with expanded load handling capability, provided the 100mA current requirement is satisfied.

All substitute parts must maintain SPST-NO topology, surface mount gull wing termination, and control voltage compatibility within the 1.14-1.2VDC range. On-state resistance variation is permitted within the limits of acceptable design integration.

Parameter Comparison

Engineering Selection Recommendations

For Direct Replacement in 0-40V Load Applications:

AQY221N2S (Panasonic PhotoMOS™ AQY series) provides the closest functional equivalence to the PS7200A-1A. This part maintains identical package dimensions (4-SOP 0.173", 4.40mm), voltage load rating (0-40V), and on-state resistance specification (12.5 Ohms nominal). Control voltage compatibility (1.14VDC) falls within acceptable design integration tolerances. The AQY221N2S carries ROHS3 compliance and active product status, ensuring design continuity and procurement availability.

For Extended Voltage Capability:

CPC1035N (IXYS Integrated Circuits Division OptoMOS®) and LH1546AEF (Vishay Semiconductor Opto Division) both support expanded load voltage handling (0-350V), enabling applications requiring higher voltage switching margins. CPC1035N presents a smaller package footprint (4-SOP 0.150", 3.81mm) with 100mA current matching. LH1546AEF maintains the original package footprint (4-SOP 0.173", 4.40mm) with 120mA current capacity. Both parts carry ROHS3 compliance and active product status.

All three substitute parts satisfy SPST-NO topology, surface mount gull wing termination, and control voltage threshold requirements established by the PS7200A-1A specification.

Frequently Asked Questions (FAQ)

Q: Can the CPC1035N substitute for the PS7200A-1A in a 40V load circuit?

A: Yes. The CPC1035N supports 0-350V load voltage operation, which encompasses the PS7200A-1A specification of 0-40V. The 100mA load current rating matches exactly. Circuit topology (SPST-NO), control voltage (1.2VDC), and termination style (gull wing surface mount) are compatible. The smaller package footprint (0.150" vs. 0.173") requires PCB layout verification.

Q: What are the on-state resistance implications of selecting AQY221N2S instead of PS7200A-1A?

A: The AQY221N2S on-state resistance specification is 12.5 Ohms maximum, compared to 12 Ohms for the PS7200A-1A. This 0.5-Ohm difference represents approximately 4% variation and is acceptable for most load switching applications. Power dissipation impact scales with load current and circuit resistance.

Q: Are package dimensions critical when selecting a substitute?

A: Package type (4-SOP) and termination style (gull wing) remain fixed across all substitutes. Two package size variants exist: 0.173" (4.40mm) matching the PS7200A-1A, and 0.150" (3.81mm) for the CPC1035N. PCB layout compatibility requires dimensional verification before part selection.

Q: How does control voltage compatibility affect substitute selection?

A: All substitute parts operate within the 1.14-1.2VDC control voltage range. AQY221N2S (1.14VDC), CPC1035N (1.2VDC), and LH1546AEF (1.18VDC) are compatible with circuits designed for the PS7200A-1A control threshold. Driver circuit voltage selection should accommodate this range.

Q: What RoHS compliance considerations apply?

A: The PS7200A-1A is RoHS non-compliant. All substitute parts (AQY221N2S, CPC1035N, LH1546AEF) carry ROHS3 compliance, satisfying current regulatory requirements for new designs and applications subject to environmental directives.