LBA126STR Equivalent & Substitute Parts

Part Overview

The LBA126STR is a solid-state relay manufactured by IXYS Integrated Circuits Division, part of the OptoMOS® series. This component functions as a SPST-NO/NC (1 Form A and B) relay with dual-channel capability, designed for switching applications across AC and DC loads up to 250V. The device is currently classified as obsolete, making identification of compatible substitute parts essential for ongoing system support and new design implementations.

Substiute Parts

LBA126STR

IXYS Integrated Circuits DivisionIn Stock: 3166LBA126STR Datasheet

Current PartRFQ

LBA127STR

IXYS Integrated Circuits DivisionIn Stock: 3543LBA127STR Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the LBA126STR is determined by strict adherence to the following electrical and mechanical parameters:

Critical Substitution Parameters:

• Circuit configuration: SPST-NO + SPST-NC (1 Form A and B)
• Mounting type: Surface Mount
• Package / Case: 8-SMD (0.300", 7.62mm)
• Termination style: Gull Wing
• Input voltage: 1.2VDC
• Load voltage range: 0 V ~ 250 V
• Output type: AC, DC

Allowable Variations:

• Load current: Equal to or greater than 170 mA
• On-state resistance: Equal to or less than 15 Ohms
• Product status: Active or Obsolete

The LBA127STR qualifies as a direct substitute based on identical circuit configuration, package specifications, and electrical operating parameters, with improved performance characteristics in load current capacity and on-state resistance.

Parameter Comparison

Engineering Selection Recommendations

The LBA127STR is the appropriate substitute for the obsolete LBA126STR. Both components share identical circuit topology, package specifications, and electrical operating ranges. The LBA127STR provides enhanced performance with increased load current capacity (200 mA versus 170 mA) and reduced on-state resistance (10 Ohms versus 15 Ohms), making it suitable for direct replacement in existing designs.

The LBA127STR maintains active product status with RoHS3 compliance, ensuring long-term availability and regulatory alignment. Both components carry identical REACH and ECCN classifications, confirming regulatory equivalence for international applications.

Frequently Asked Questions (FAQ)

Q: Can the LBA127STR directly replace the LBA126STR in existing PCB designs?

A: Yes. The LBA127STR is pin-compatible and functionally equivalent. Both components use identical 8-SMD (0.300", 7.62mm) gull wing termination and share the same circuit configuration (SPST-NO + SPST-NC). No PCB layout modifications are required.

Q: What are the key differences between LBA126STR and LBA127STR?

A: The LBA127STR offers improved electrical performance with 200 mA load current capacity (versus 170 mA) and 10 Ohms maximum on-state resistance (versus 15 Ohms). The LBA127STR maintains active product status, whereas the LBA126STR is obsolete.

Q: Are there any voltage or input signal differences between these parts?

A: No. Both components operate with identical input voltage (1.2VDC) and load voltage range (0 V ~ 250 V). Output type (AC, DC) and switching characteristics remain unchanged.

Q: What is the moisture sensitivity level for both components?

A: Both the LBA126STR and LBA127STR carry MSL 1 (Unlimited) classification, indicating no moisture sensitivity restrictions during storage or handling.

Q: Does the LBA127STR meet the same regulatory requirements as the LBA126STR?

A: Yes. Both components share identical REACH status (REACH Unaffected) and ECCN classification (EAR99). The LBA127STR additionally carries RoHS3 compliance certification.