LBA127 Equivalent & Substitute Parts

Part Overview

The LBA127 is a solid-state relay manufactured by IXYS Integrated Circuits Division, classified as an OptoMOS® device. It functions as a SPST-NO/NC (1 Form A and B) relay with dual-channel switching capability in an 8-DIP through-hole package. The device is rated for 200 mA load current across AC and DC applications with a maximum load voltage of 0–250 V. The LBA127 maintains active product status and is RoHS3 compliant. Equivalent parts are identified to support procurement flexibility, inventory management, and supply chain continuity.

Substiute Parts

LBA127

IXYS Integrated Circuits DivisionIn Stock: 1610LBA127 Datasheet

Current PartRFQ

LH1512BB

Vishay Semiconductor Opto DivisionIn Stock: 20251LH1512BB Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

The LH1512BB from Vishay Semiconductor Opto Division qualifies as an equivalent substitute based on the following critical parameters:

• Circuit configuration: Both devices implement SPST-NO + SPST-NC (1 Form A and B) switching topology
• Package compatibility: Both use 8-DIP (0.300", 7.62mm) through-hole packaging
• Load current rating: Both support 200 mA maximum load current
• On-state resistance: Both specify 10 Ohms maximum
• Input voltage: LH1512BB operates at 1.26 VDC, within acceptable tolerance of the LBA127's 1.2 VDC specification
• Output type: Both support AC and DC load switching
• Compliance: Both are RoHS3 compliant and REACH unaffected

The primary distinction is the maximum load voltage rating: LBA127 supports 0–250 V, while LH1512BB supports 0–200 V. This parameter difference must be evaluated against application requirements.

Parameter Comparison

Engineering Selection Recommendations

Both the LBA127 and LH1512BB are active products with equivalent RoHS3 and REACH compliance status. Selection between these devices depends on load voltage requirements:

• Use LBA127 for applications requiring load voltages up to 250 V
• Use LH1512BB for applications with load voltages up to 200 V

Both devices share identical circuit topology, package form factor, load current capacity, and on-state resistance specifications. Input voltage tolerance between 1.2 VDC and 1.26 VDC is negligible for practical circuit design. Inventory availability and procurement lead times may also influence selection.

Frequently Asked Questions (FAQ)

Q: Can LH1512BB replace LBA127 in all applications?

A: LH1512BB is functionally equivalent for applications where the maximum load voltage does not exceed 200 V. If your circuit requires load voltages between 200 V and 250 V, LBA127 is the required choice.

Q: Are the packages physically interchangeable?

A: Yes. Both devices use 8-DIP (0.300", 7.62mm) through-hole packaging with identical pin spacing and footprint, enabling direct PCB substitution without layout modification.

Q: What is the significance of the input voltage difference (1.2 VDC vs. 1.26 VDC)?

A: The 0.06 VDC difference is within standard component tolerance and does not affect circuit compatibility. Both devices operate from the same control signal voltage range in practical applications.

Q: Are both devices suitable for new designs?

A: Yes. Both LBA127 and LH1512BB maintain active product status, ensuring continued availability and support for new designs and production runs.

Q: Do compliance certifications differ between these devices?

A: No. Both devices are RoHS3 compliant and REACH unaffected, meeting identical regulatory requirements for industrial and commercial applications.