LBA110LS Equivalent & Substitute Parts

Part Overview

The LBA110LS is a solid-state relay manufactured by IXYS Integrated Circuits Division, part of the OptoMOS® series. This surface-mount component functions as a SPST-NO/NC (1 Form A and B) relay with a maximum load current of 120 mA and load voltage range of 0–350 V. The device is designed for applications requiring compact, reliable switching of AC and DC loads. As an active product with ROHS3 compliance and unlimited moisture sensitivity rating, the LBA110LS remains in production. Equivalent and substitute parts are identified to support procurement flexibility, inventory management, and design continuity when the primary part becomes unavailable or when design specifications permit higher performance alternatives.

Substiute Parts

LBA110LS

IXYS Integrated Circuits DivisionIn Stock: 938LBA110LS Datasheet

Current PartRFQ

LH1502BAC

Vishay Semiconductor Opto DivisionIn Stock: 1244LH1502BAC Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the LBA110LS is determined by strict adherence to the following critical parameters:

Mandatory Compatibility Parameters:

• Circuit configuration: SPST-NO + SPST-NC (1 Form A and B)
• Package / Case: 8-SMD (0.300", 7.62mm)
• Termination style: Gull Wing
• Load voltage range: 0 V ~ 350 V (minimum requirement)
• Output type: AC, DC capability
• Mounting type: Surface Mount

Performance Parameters (Substitution Allowed When Equal or Superior):

• Input voltage: 1.2 VDC or compatible
• Load current: 120 mA minimum
• On-state resistance: 35 Ohms maximum

The LH1502BAC qualifies as a direct substitute because it maintains identical circuit configuration, package dimensions, termination style, and load voltage specifications. The LH1502BAC provides superior performance with 150 mA load current capacity and 20 Ohms on-state resistance, making it suitable for applications where the LBA110LS is specified, provided the design does not impose constraints that would be violated by these enhanced characteristics.

Parameter Comparison

Engineering Selection Recommendations

Both the LBA110LS and LH1502BAC are active products with ROHS3 compliance and unlimited moisture sensitivity ratings, ensuring long-term availability and environmental regulatory compliance. The LH1502BAC carries additional approval certifications (CQC, FIMKO, UL, VDE), which may be required for specific applications or regional markets.

Selection between these parts should be based on:

• Primary part availability: Use LBA110LS when specified and in stock.
• Performance requirements: The LH1502BAC provides 25% higher load current capacity (150 mA vs. 120 mA) and 43% lower on-state resistance (20 Ohms vs. 35 Ohms), reducing heat dissipation and enabling higher switching reliability in current-limited applications.
• Regulatory requirements: If certifications beyond ROHS3 compliance are mandated, the LH1502BAC's additional agency approvals may satisfy those requirements.
• Thermal design: Applications with tight thermal budgets benefit from the LH1502BAC's lower on-state resistance.

Frequently Asked Questions (FAQ)

Q: Can the LH1502BAC be used as a direct replacement for the LBA110LS in existing designs?

A: Yes. Both parts share identical circuit configuration (SPST-NO + SPST-NC), package dimensions (8-SMD, 0.300" / 7.62mm), termination style (Gull Wing), and load voltage range (0–350 V). The LH1502BAC's superior performance characteristics (150 mA vs. 120 mA load current, 20 Ohms vs. 35 Ohms on-state resistance) make it functionally compatible with designs specified for the LBA110LS.

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

A: The primary differences are manufacturer (IXYS vs. Vishay), input voltage specification (1.2 VDC vs. 1.26 VDC), load current rating (120 mA vs. 150 mA), on-state resistance (35 Ohms vs. 20 Ohms), and certifications. The LH1502BAC provides enhanced performance and broader regulatory approvals.

Q: Are there any package or footprint differences?

A: No. Both parts use identical 8-SMD packaging with 0.300" (7.62mm) body dimensions and Gull Wing termination. PCB layouts and reflow profiles remain unchanged.

Q: Which part should be selected for new designs?

A: Selection depends on application requirements and supply chain strategy. The LH1502BAC is suitable for applications requiring higher current capacity or lower on-state resistance. Both parts are active products with equivalent compliance status.

Q: Do these parts require different handling or storage procedures?

A: No. Both parts have identical Moisture Sensitivity Level (MSL) ratings of 1 (Unlimited), indicating no special moisture control requirements during storage or handling.