PLA134STR Equivalent & Substitute Parts

Part Overview

The PLA134STR is a solid-state relay (SSR) manufactured by IXYS Integrated Circuits Division, part of the OptoMOS® series. This SPST-NO (1 Form A) device is designed for switching applications with a load voltage range of 0–100V and a maximum load current of 350 mA. The component features surface mount packaging in a 6-SMD (0.300", 7.62mm) form factor with gull wing termination.

The PLA134STR is classified as obsolete. Due to its discontinued status, identifying functionally equivalent substitute parts is necessary for ongoing design support, maintenance, and new production requirements where this component is specified.

Substiute Parts

PLA134STR

IXYS Integrated Circuits DivisionIn Stock: 1715PLA134STR Datasheet

Current PartRFQ

LCA701STR

IXYS Integrated Circuits DivisionIn Stock: 2257LCA701STR Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

The LCA701STR qualifies as a manufacturer-recommended substitute for the PLA134STR based on the following alignment of critical electrical and mechanical parameters:

Matching Parameters:

• Circuit configuration: Both are SPST-NO (1 Form A) devices
• Output type: Both support AC and DC switching
• Input voltage: Both require 1.2 VDC control signal
• Load voltage range: Both operate across 0 V ~ 100 V
• Mounting type: Both are surface mount components
• Package form factor: Both use 6-SMD (0.300", 7.62mm) with gull wing termination
• Compliance: Both are ROHS3 compliant with MSL 1 (Unlimited)

Key Difference: The LCA701STR provides enhanced load current capability (1.5 A versus 350 mA) and lower on-state resistance (300 mOhms versus 3 Ohms), making it suitable for applications requiring higher switching capacity within the same voltage and package constraints.

Parameter Comparison

Engineering Selection Recommendations

The LCA701STR is the manufacturer-recommended substitute for the obsolete PLA134STR. Both components maintain identical control voltage requirements (1.2 VDC), load voltage operating range (0–100 V), and physical package dimensions (6-SMD, 0.300" × 7.62mm). Both devices are ROHS3 compliant with unlimited moisture sensitivity rating.

The LCA701STR offers superior electrical performance with increased load current capacity (1.5 A versus 350 mA) and significantly reduced on-state resistance (300 mOhms versus 3 Ohms). This enhanced capability makes the LCA701STR suitable for applications previously limited by the PLA134STR's 350 mA maximum current rating.

The LCA701STR maintains active product status, ensuring ongoing availability and manufacturing support, whereas the PLA134STR is discontinued. For new designs or production transitions, the LCA701STR is the appropriate selection.

Frequently Asked Questions (FAQ)

Q: Can the LCA701STR directly replace the PLA134STR in existing designs?

A: Yes. Both components share identical control voltage (1.2 VDC), load voltage range (0–100 V), circuit configuration (SPST-NO), and package form factor (6-SMD, 0.300" × 7.62mm with gull wing termination). The LCA701STR provides enhanced performance without requiring circuit modifications.

Q: What are the key differences between these two parts?

A: The primary differences are load current capacity and on-state resistance. The LCA701STR supports 1.5 A maximum load current compared to the PLA134STR's 350 mA, and features 300 mOhms on-state resistance versus 3 Ohms. The LCA701STR also maintains active product status while the PLA134STR is obsolete.

Q: Are both parts available in the same packaging?

A: Yes. Both the PLA134STR and LCA701STR use 6-SMD (0.300", 7.62mm) surface mount packaging with gull wing termination, ensuring identical PCB footprint compatibility.

Q: Do both parts meet the same compliance standards?

A: Yes. Both components are ROHS3 compliant with MSL 1 (Unlimited) moisture sensitivity rating, meeting equivalent environmental and regulatory requirements.

Q: Why would I choose the LCA701STR over the PLA134STR?

A: The PLA134STR is obsolete and no longer manufactured. The LCA701STR is the active, manufacturer-recommended substitute offering superior electrical performance with higher current capacity and lower on-state resistance within the same package and voltage specifications.