PS7113L-2A Solid State Relay - Equivalent & Substitute Parts

Part Overview

The PS7113L-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-SMD surface mount package. This component is designed for switching applications with a maximum load current of 350 mA across a 0-100V DC/AC range, controlled by a 1.2VDC input signal.

The PS7113L-2A is classified as an obsolete product. Identification of equivalent and substitute parts is necessary to support ongoing maintenance, repair, and redesign activities for legacy systems utilizing this component.

Substiute Parts

PS7113L-2A

CELIn Stock: 1976PS7113L-2A Datasheet

Current PartRFQ

AQW212A

Panasonic Electric WorksIn Stock: 13747AQW212A Datasheet

SimilarRFQ

AQW215A

Panasonic Electric WorksIn Stock: 30295AQW215A Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the PS7113L-2A is determined by the following critical parameters:

Package Compatibility: The substitute part must use the same 8-SMD (0.300", 7.62mm) surface mount package with gull wing termination to ensure mechanical and electrical compatibility with existing PCB layouts.

Circuit Configuration: The substitute must maintain the SPST-NO (1 Form A) x 2 dual-channel configuration to preserve functional equivalence.

Electrical Operating Range: The substitute must support the required load voltage range and input control voltage. The PS7113L-2A operates with a 1.2VDC input and 0-100V load voltage.

Load Current Capability: The substitute must meet or exceed the 350 mA load current requirement.

On-State Resistance: The substitute must maintain acceptable on-state resistance characteristics to preserve circuit performance.

Output Type: The substitute must support both AC and DC output switching.

The identified substitute parts (AQW212A and AQW215A) share the same package, circuit configuration, and output type as the PS7113L-2A. Both are manufactured by Panasonic Electric Works and are classified as active products with current availability.

Parameter Comparison

Engineering Selection Recommendations

AQW215A Selection Criteria:

The AQW215A is the primary substitute for the PS7113L-2A. This part maintains identical load voltage range (0-100V), matching the original specification exactly. The load current rating of 300 mA is within acceptable tolerance of the 350 mA requirement for applications where the full 350 mA is not continuously demanded. The on-state resistance of 4 Ohms is higher than the original 2.5 Ohms but remains within acceptable parameters for most switching applications. The AQW215A is an active product with high inventory availability (30,200 pcs) and carries ROHS3 compliance, addressing regulatory requirements for new designs and long-term supply continuity.

AQW212A Selection Criteria:

The AQW212A provides an alternative with superior load current capability (500 mA), exceeding the original 350 mA specification. However, the maximum load voltage is limited to 60V, which is below the PS7113L-2A specification of 100V. The AQW212A is suitable only for applications where the load voltage does not exceed 60V. This part maintains the same on-state resistance (2.5 Ohms) as the original. The AQW212A is an active product with high inventory availability (13,700 pcs) and carries ROHS3 compliance.

Compliance Considerations:

Both substitute parts are ROHS3 compliant, whereas the PS7113L-2A is RoHS non-compliant. Both substitute parts are REACH unaffected, compared to the original part's REACH affected status. These compliance improvements support regulatory requirements for new production and long-term system support.

Frequently Asked Questions (FAQ)

Q: Can the AQW215A directly replace the PS7113L-2A in existing designs?

A: The AQW215A shares the same package (8-SMD with gull wing termination), circuit configuration (SPST-NO x 2), and load voltage range (0-100V) as the PS7113L-2A. The load current rating of 300 mA is lower than the original 350 mA specification. Direct replacement is possible if the application does not require the full 350 mA load current. The on-state resistance increase from 2.5 Ohms to 4 Ohms must be evaluated for circuit performance impact.

Q: What is the difference between AQW212A and AQW215A?

A: The primary difference is the maximum load voltage specification. The AQW212A supports 0-60V, while the AQW215A supports 0-100V. The AQW212A has a higher load current rating (500 mA vs. 300 mA) and lower on-state resistance (2.5 Ohms vs. 4 Ohms). Selection depends on the specific voltage and current requirements of the application.

Q: Are the substitute parts available in the same packaging format?

A: Both AQW212A and AQW215A are supplied in tube packaging, whereas the PS7113L-2A packaging format was not specified in the original documentation. Both substitute parts use the identical 8-SMD (0.300", 7.62mm) surface mount package with gull wing termination, ensuring PCB compatibility.

Q: What is the impact of the higher on-state resistance in the AQW215A?

A: The AQW215A on-state resistance of 4 Ohms compared to the PS7113L-2A specification of 2.5 Ohms results in increased voltage drop across the relay contacts during conduction. At 300 mA load current, this produces an additional voltage drop of approximately 0.45V. Circuit designs must account for this increased drop in load voltage calculations.

Q: Are there any compliance advantages to using the substitute parts?

A: Both AQW212A and AQW215A are ROHS3 compliant and REACH unaffected, compared to the PS7113L-2A which is RoHS non-compliant and REACH affected. These compliance improvements support regulatory requirements for new production runs and long-term system support in regulated markets.

Q: What is the input voltage compatibility between the original and substitute parts?

A: The PS7113L-2A requires 1.2VDC input, while both substitute parts require 1.14VDC input. This minor difference (0.06V) is negligible for most control circuit implementations and does not affect practical substitution.