PS7113-2A Solid State Relay SPST-NO Equivalent & Substitute Parts

Part Overview

The PS7113-2A 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 through-hole package. This component operates with a 1.2VDC input signal and supports load voltages from 0V to 100V at 350mA maximum load current. The PS7113-2A is classified as obsolete product status. Identifying equivalent and substitute parts is necessary to maintain design continuity, ensure supply chain availability, and support ongoing production requirements for legacy systems utilizing this component.

Substiute Parts

PS7113-2A

CELIn Stock: 2298PS7113-2A Datasheet

Current PartRFQ

AQW212

Panasonic Electric WorksIn Stock: 13936AQW212 Datasheet

SimilarRFQ

AQW215

Panasonic Electric WorksIn Stock: 1557AQW215 Datasheet

SimilarRFQ

AQY225R2S

Panasonic Electric WorksIn Stock: 2104AQY225R2S Datasheet

SimilarRFQ

PAA150

IXYS Integrated Circuits DivisionIn Stock: 1467PAA150 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the PS7113-2A is determined by the following critical parameters:

Package Compatibility: The 8-DIP (0.300", 7.62mm) through-hole package is the primary mechanical constraint. Substitute parts must maintain identical package geometry and pin configuration to ensure direct PCB compatibility without layout modifications.

Circuit Configuration: The dual SPST-NO channel architecture (1 Form A x 2) is a functional requirement. Substitute parts must provide equivalent switching capability.

Electrical Operating Range: Input voltage (1.2VDC nominal), load voltage range (0V to 100V), and load current capacity (350mA) define the operational envelope. Substitute parts must support these ranges or exceed them without introducing incompatibility.

On-State Resistance: Maximum on-state resistance of 2.5 Ohms establishes the conduction performance baseline. Substitute parts with equal or lower on-state resistance maintain equivalent thermal and power dissipation characteristics.

Output Type: AC/DC output capability is required for universal load switching applications.

Substitute parts are grouped into two categories:

Category A - Direct Package Substitutes (8-DIP Through-Hole): Parts maintaining identical package, mounting type, and dual-channel configuration. These include AQW212, AQW215, and PAA150.

Category B - Functional Equivalent with Package Variation (Surface Mount): The AQY225R2S provides equivalent SSR functionality but uses a 4-SOP surface-mount package and single-channel configuration, requiring PCB redesign and is suitable only for new designs or board revisions.

Parameter Comparison

Engineering Selection Recommendations

For Direct PCB Replacement (No Layout Changes Required):

The AQW215 manufactured by Panasonic Electric Works is the primary substitute for the PS7113-2A. Both components share identical 8-DIP through-hole package geometry, dual SPST-NO channel configuration, and PC pin termination. The AQW215 supports the full 0V to 100V load voltage range required by the PS7113-2A. Load current capacity of 300mA is within the operational envelope of designs rated for 350mA, with appropriate thermal margin verification. The AQW215 is active product status with ROHS3 compliance, ensuring long-term supply availability and regulatory alignment.

For Applications Requiring Extended Load Voltage Range:

The PAA150 manufactured by IXYS Integrated Circuits Division provides superior load voltage capability (0V to 250V) while maintaining the 8-DIP through-hole package and dual-channel configuration. Input voltage (1.2VDC) matches the PS7113-2A specification. Load current capacity of 250mA is suitable for designs with reduced current requirements. On-state resistance of 7 Ohms is higher than the PS7113-2A baseline, requiring thermal analysis for high-current applications. The PAA150 is active product status with ROHS3 compliance.

For High Load Current Applications:

The AQW212 manufactured by Panasonic Electric Works offers the highest load current capacity (500mA) among available substitutes while maintaining 8-DIP through-hole package compatibility and dual-channel configuration. Load voltage range is limited to 0V to 60V, restricting use to applications within this envelope. On-state resistance of 2.5 Ohms matches the PS7113-2A specification. The AQW212 is active product status with ROHS3 compliance.

For New Design Implementation Only:

The AQY225R2S manufactured by Panasonic Electric Works is not suitable for direct replacement due to single-channel configuration and 4-SOP surface-mount package requiring PCB redesign. This component is applicable only to new circuit designs or board revisions where layout flexibility exists.

Frequently Asked Questions (FAQ)

Q: Can the AQW215 directly replace the PS7113-2A without PCB modifications?

A: Yes. Both components use identical 8-DIP (0.300", 7.62mm) through-hole package geometry with PC pin termination. Pin-to-pin compatibility is maintained. No PCB layout changes are required for mechanical and electrical integration.

Q: What is the load current difference between the PS7113-2A (350mA) and AQW215 (300mA)?

A: The AQW215 has 50mA lower maximum load current rating. For applications operating at or near 350mA, the AQW215 provides reduced thermal margin. Circuit analysis must verify that actual operating current remains within the 300mA specification with appropriate safety factor.

Q: Why is the AQY225R2S not recommended as a direct substitute?

A: The AQY225R2S uses a 4-SOP surface-mount package versus the 8-DIP through-hole package of the PS7113-2A. Additionally, it provides single-channel (1 Form A) configuration instead of dual-channel (1 Form A x 2). PCB redesign is required for implementation. This component is suitable only for new designs.

Q: Does the PAA150 support the full 100V load voltage range of the PS7113-2A?

A: No. The PAA150 supports 0V to 250V load voltage range, which exceeds the PS7113-2A specification of 0V to 100V. The PAA150 is suitable for applications requiring extended voltage capability. For designs limited to 100V operation, the AQW215 is the appropriate choice.

Q: Are all substitute parts RoHS compliant?

A: The PS7113-2A is RoHS non-compliant. All substitute parts (AQW212, AQW215, AQY225R2S, PAA150) are ROHS3 compliant. This compliance improvement supports regulatory requirements for new production and procurement.

Q: What is the on-state resistance impact of using the AQW215 instead of the PS7113-2A?

A: The AQW215 has maximum on-state resistance of 4 Ohms versus 2.5 Ohms for the PS7113-2A. This 1.5 Ohm increase results in higher power dissipation at equivalent load currents. Thermal analysis is required to verify that junction temperature remains within acceptable limits for the application environment.

Q: Can the AQW212 be used in applications designed for 100V load voltage?

A: No. The AQW212 supports maximum load voltage of 0V to 60V. Applications requiring 100V operation must use AQW215 or PAA150. Using AQW212 in 100V circuits exceeds component ratings and creates reliability risk.

Q: What inventory status should be considered when selecting a substitute?

A: All substitute parts are active product status with current manufacturing and distribution. The PS7113-2A is obsolete with limited remaining inventory (2246 pcs). For new production, active substitute parts ensure long-term supply chain continuity and support for future procurement cycles.