LAA100LS Solid State Relay - Equivalent & Substitute Parts

Part Overview

The LAA100LS 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 across 0-350V load voltage with 120mA switching capacity and is designed for both AC and DC applications. The part is RoHS3 compliant and carries unlimited moisture sensitivity rating (MSL 1). Equivalent and substitute parts are identified based on matching electrical performance parameters, mechanical compatibility, and functional equivalence within the same product category.

Substiute Parts

LAA100LS

IXYS Integrated Circuits DivisionIn Stock: 2248LAA100LS Datasheet

Current PartRFQ

AQW210HLA

Panasonic Electric WorksIn Stock: 2379AQW210HLA Datasheet

MFR RecommendedRFQ

LH1520AAC

Vishay Semiconductor Opto DivisionIn Stock: 3204LH1520AAC Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the LAA100LS are qualified based on the following criteria:

• Circuit Configuration: Identical SPST-NO (1 Form A) x 2 topology
• Load Voltage Range: 0-350V compatibility
• Package Compatibility: 8-SMD (0.300", 7.62mm) with Gull Wing termination for direct PCB substitution
• Input Voltage: Within acceptable operating range (1.14VDC to 1.26VDC)
• Load Current: Rated at or above 110mA minimum
• On-State Resistance: 20-25 Ohms maximum
• Output Type: AC and DC capable
• Product Status: Active manufacturing status

The identified substitutes meet these electrical and mechanical parameters, enabling direct replacement in applications requiring SPST-NO solid state relay functionality.

Parameter Comparison

Engineering Selection Recommendations

All three parts maintain active product status with current manufacturing availability. The LAA100LS and LH1520AAC both carry ROHS3 compliance and unlimited moisture sensitivity rating (MSL 1), providing equivalent environmental qualification. The AQW210HLA offers RoHS compliance with not applicable MSL designation, indicating alternative moisture handling specifications.

From an electrical standpoint, the AQW210HLA and LH1520AAC both operate within the specified load voltage and current parameters. The LH1520AAC provides superior on-state resistance performance at 20 Ohms maximum compared to 25 Ohms for the primary part, resulting in lower power dissipation. Input voltage requirements across all three parts fall within a narrow 1.14-1.26VDC range, ensuring compatibility with standard control circuits.

All parts share identical package geometry (8-SMD, 0.300" / 7.62mm) and Gull Wing termination, enabling direct PCb footprint compatibility without layout modification. Export classification (EAR99) and tariff codes (HTSUS 8536.41.0030) are consistent across all options.

Frequently Asked Questions (FAQ)

Q: Can the AQW210HLA directly replace the LAA100LS on an existing PCB?

A: Yes. Both parts use identical 8-SMD (0.300", 7.62mm) packaging with Gull Wing termination. The electrical parameters (load voltage 0-350V, 120mA current, input voltage 1.14VDC) are compatible with LAA100LS circuit requirements.

Q: What is the difference in on-state resistance between these parts?

A: The LAA100LS and AQW210HLA specify 25 Ohms maximum on-state resistance, while the LH1520AAC specifies 20 Ohms maximum. Lower resistance reduces power dissipation and heat generation during operation.

Q: Are all three parts RoHS compliant?

A: Yes. The LAA100LS and LH1520AAC are ROHS3 compliant. The AQW210HLA is RoHS compliant. All three meet environmental regulatory requirements for their respective manufacturing standards.

Q: What is the significance of MSL (Moisture Sensitivity Level) ratings?

A: The LAA100LS and LH1520AAC carry MSL 1 (Unlimited), indicating no moisture sensitivity restrictions during storage and handling. The AQW210HLA lists MSL as Not Applicable, reflecting alternative moisture management specifications from Panasonic.

Q: Do all parts support both AC and DC load switching?

A: Yes. All three parts are rated for AC and DC output operation across the 0-350V load voltage range.

Q: What input voltage range is required for these relays?

A: The LAA100LS requires 1.2VDC input. The AQW210HLA operates at 1.14VDC, and the LH1520AAC at 1.26VDC. All three fall within a compatible range for standard logic-level control circuits.

Q: Is the load current rating identical across all substitutes?

A: The LAA100LS and AQW210HLA are both rated for 120mA load current. The LH1520AAC is rated for 110mA, which remains suitable for applications requiring up to 110mA switching capacity.