PLA110S Solid State Relay - Equivalent & Substitute Parts

Part Overview

The PLA110S is an active SPST-NO (1 Form A) solid state relay manufactured by IXYS Integrated Circuits Division, part of the OptoMOS® series. This surface mount component operates with a 1.2VDC input and supports load voltages from 0V to 400V with a 150mA load current capacity. The device is supplied in tube packaging with 6-SMD (0.300", 7.62mm) gull wing termination. Finding equivalent or substitute parts may be necessary due to inventory constraints, lead time requirements, or specific packaging preferences while maintaining electrical and mechanical compatibility.

Substiute Parts

PLA110S

IXYS Integrated Circuits DivisionIn Stock: 752PLA110S Datasheet

Current PartRFQ

PLA110STR

IXYS Integrated Circuits DivisionIn Stock: 32196PLA110STR Datasheet

DirectRFQ

ASSR-4111-501E

Broadcom LimitedIn Stock: 2926ASSR-4111-501E Datasheet

MFR RecommendedRFQ

ASSR-4119-501E

Broadcom LimitedIn Stock: 5917ASSR-4119-501E Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the PLA110S is determined by strict alignment with the following critical parameters:

• Circuit configuration must be SPST-NO (1 Form A)
• Output type must support both AC and DC
• Load voltage range must encompass 0V to 400V
• Package and case must be 6-SMD (0.300", 7.62mm) with gull wing termination
• Mounting type must be surface mount
• RoHS3 compliance and MSL 1 rating required

The substitute parts listed below meet these core requirements. Variations in input voltage, load current, and on-state resistance are permissible within the constraints of the application circuit design, provided the substitute part does not exceed the electrical demands of the original design.

Parameter Comparison

Engineering Selection Recommendations

All listed substitute parts maintain active product status and full ROHS3 compliance with MSL 1 rating, ensuring regulatory and environmental compatibility with the PLA110S.

PLA110STR is a direct manufacturer equivalent from IXYS, differing only in packaging format (Tape & Reel versus Tube). Electrical specifications are identical to the PLA110S, making this the preferred substitute when packaging format change is acceptable.

ASSR-4111-501E and ASSR-4119-501E are cross-manufacturer alternatives from Broadcom Limited. Both maintain the required 6-SMD package, gull wing termination, and 0V to 400V load voltage range. The ASSR-4111-501E operates at 120mA load current with 25 Ohms maximum on-state resistance, while the ASSR-4119-501E operates at 100mA with 35 Ohms maximum on-state resistance. Both require 1.3VDC input versus the PLA110S 1.2VDC input. Selection between these alternatives depends on circuit load current requirements and acceptable on-state resistance values for the application.

Frequently Asked Questions (FAQ)

Q: Can PLA110STR be used as a direct replacement for PLA110S?

A: Yes. PLA110STR is electrically and mechanically identical to PLA110S. The only difference is packaging format: PLA110S is supplied in tube packaging while PLA110STR is supplied in Tape & Reel format. Both are manufactured by IXYS and share identical electrical specifications.

Q: What are the key differences between IXYS PLA110 series and Broadcom ASSR series substitutes?

A: The primary differences are manufacturer and load current ratings. IXYS PLA110S and PLA110STR support 150mA load current at 22 Ohms maximum on-state resistance. Broadcom ASSR-4111-501E supports 120mA at 25 Ohms, and ASSR-4119-501E supports 100mA at 35 Ohms. All maintain identical load voltage range (0V to 400V) and package specifications. Input voltage differs slightly: PLA110 series requires 1.2VDC while ASSR series requires 1.3VDC.

Q: Are there load current limitations when substituting with ASSR parts?

A: Yes. If your circuit requires load currents exceeding 120mA, the ASSR-4111-501E is not suitable. If your circuit requires load currents exceeding 100mA, the ASSR-4119-501E is not suitable. Verify that your application load current does not exceed the substitute part's rated maximum before selection.

Q: Does the 1.3VDC input requirement of ASSR parts affect compatibility?

A: The ASSR series requires 1.3VDC input compared to 1.2VDC for PLA110 series. Verify that your circuit can supply 1.3VDC to the input pin. If your circuit is designed for 1.2VDC input only, ASSR substitutes may not operate reliably.

Q: What is the significance of the 6-SMD package specification?

A: The 6-SMD (0.300", 7.62mm) package with gull wing termination is a standardized surface mount footprint. All listed substitute parts use this identical package, ensuring PCB layout and reflow soldering compatibility without design modification.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. PLA110S, PLA110STR, ASSR-4111-501E, and ASSR-4119-501E are all ROHS3 compliant with MSL 1 (Unlimited) moisture sensitivity rating, meeting current environmental and regulatory requirements.