PLA134 Solid State Relay SPST-NO Equivalent & Substitute Parts

Part Overview

The PLA134 is a solid state relay (SSR) manufactured by IXYS Integrated Circuits Division, configured as a SPST-NO (Single Pole Single Throw - Normally Open) switching device. This component operates with a 1.2VDC input signal and controls loads up to 100V at 350mA capacity. The PLA134 is classified as obsolete, making identification of suitable substitute components necessary for ongoing system maintenance and new design implementations where equivalent functionality is required.

Substiute Parts

PLA134

IXYS Integrated Circuits DivisionIn Stock: 2477PLA134 Datasheet

Current PartRFQ

LCA701

IXYS Integrated Circuits DivisionIn Stock: 2087LCA701 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the PLA134 is determined by the following critical parameters that must remain consistent:

Circuit configuration must remain SPST-NO (1 Form A) to maintain identical switching topology. Input voltage specification of 1.2VDC is a fixed requirement for control signal compatibility. Load voltage range of 0V ~ 100V establishes the maximum operating envelope. Package type 6-DIP (0.300", 7.62mm) with through-hole PC pin termination ensures mechanical and electrical compatibility with existing PCB layouts. Output type AC/DC capability must be preserved for application flexibility.

The LCA701 qualifies as a direct substitute based on these parameters. It maintains identical circuit configuration, input voltage, load voltage range, package dimensions, mounting type, and termination style. The LCA701 provides enhanced load current capacity (1.5A versus 350mA) and improved on-state resistance (300mOhms versus 3 Ohms), representing a performance upgrade within the same physical and electrical interface envelope.

Parameter Comparison

Engineering Selection Recommendations

The LCA701 is the manufacturer-recommended substitute for the obsolete PLA134. Both components maintain identical compliance certifications: ROHS3 compliance and REACH unaffected status. The LCA701 carries active product status, ensuring continued availability and manufacturer support, whereas the PLA134 is obsolete.

The LCA701 provides superior electrical performance characteristics while maintaining full mechanical and electrical interface compatibility. The increased load current capacity (1.5A) and reduced on-state resistance (300mOhms) represent performance enhancements that do not compromise backward compatibility with existing circuit designs rated for the PLA134's 350mA specification.

Frequently Asked Questions (FAQ)

Q: Can the LCA701 directly replace the PLA134 in existing designs? A: Yes. The LCA701 maintains identical circuit configuration (SPST-NO), input voltage (1.2VDC), load voltage range (0V ~ 100V), package dimensions (6-DIP 0.300"), mounting type (through hole), and termination style (PC pin). No PCB modifications are required.

Q: What are the performance differences between PLA134 and LCA701? A: The LCA701 provides higher load current capacity (1.5A versus 350mA) and lower on-state resistance (300mOhms versus 3 Ohms). These represent performance improvements that enhance switching efficiency and current handling capability.

Q: Why is the PLA134 classified as obsolete? A: The PLA134 is no longer in active production. The LCA701 supersedes this component as the current production equivalent within the IXYS OptoMOS® product line.

Q: Are there any compliance or certification differences? A: No. Both components maintain identical RoHS3 compliance, REACH unaffected status, and MSL rating (1 - Unlimited). Regulatory and environmental compliance requirements are equivalent.

Q: What is the package compatibility between these components? A: Both components use 6-DIP (0.300", 7.62mm) packaging with PC pin termination for through-hole mounting. Physical footprint and pin configuration are identical, ensuring direct PCB compatibility.