LCA211 Equivalent & Substitute Parts

Part Overview

The LCA211 is a solid-state relay (SSR) manufactured by IXYS Integrated Circuits Division, configured as a SPST-NO (Single Pole Single Throw - Normally Open) relay with dual channels in an 8-DIP package. This OptoMOS® device is rated for 85 mA load current across 0–350 V AC/DC applications with a 1.2 VDC input trigger voltage.

The LCA211 is classified as obsolete. Locating equivalent or substitute parts is necessary to support ongoing maintenance, repair, and new design implementations where this component is specified or required as a replacement in existing systems.

Substiute Parts

LCA211

IXYS Integrated Circuits DivisionIn Stock: 1886LCA211 Datasheet

Current PartRFQ

LCA210

IXYS Integrated Circuits DivisionIn Stock: 1310LCA210 Datasheet

DirectRFQ

AQW210EH

Panasonic Electric WorksIn Stock: 19047AQW210EH Datasheet

MFR RecommendedRFQ

AQW610EH

Panasonic Electric WorksIn Stock: 30403AQW610EH Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the LCA211 is determined by the following critical parameters:

• Circuit configuration (SPST-NO x 2 channels minimum)
• Package type (8-DIP, 0.300" pitch)
• Mounting style (Through Hole, PC Pin termination)
• Load voltage range (0–350 V AC/DC capability)
• Load current rating (minimum 85 mA)
• Input trigger voltage compatibility (1.2 VDC or lower)
• On-state resistance (35 Ohms or lower)

Substitute parts must maintain or exceed these electrical and mechanical specifications to ensure functional compatibility in existing circuit designs.

Parameter Comparison

Engineering Selection Recommendations

LCA210 is the direct IXYS equivalent to the LCA211. Both parts share identical electrical specifications and package configuration. The LCA210 maintains active product status and ROHS3 compliance, making it the preferred choice for direct replacement in applications requiring IXYS OptoMOS® technology continuity.

AQW210EH (Panasonic PhotoMOS™ AQW series) provides functional equivalence with improved electrical performance: 120 mA load current (versus 85 mA) and 25 Ohms on-state resistance (versus 35 Ohms). The lower input trigger voltage (1.14 VDC) ensures compatibility with LCA211 control circuits. This part is actively manufactured and ROHS3 compliant.

AQW610EH offers the same electrical performance as AQW210EH but with an additional SPST-NC (Normally Closed) channel, providing a Form B output in addition to the Form A output. This configuration expands functional capability while maintaining full electrical compatibility with LCA211 load specifications. The AQW610EH is actively manufactured and ROHS3 compliant.

All three substitute parts are available in active production status with established supply chains, addressing the obsolescence of the LCA211.

Frequently Asked Questions (FAQ)

Q: Can the LCA210 be used as a direct replacement for the LCA211?

A: Yes. The LCA210 is the direct IXYS equivalent with identical electrical ratings, circuit configuration, and package specifications. Both are OptoMOS® devices in 8-DIP format with SPST-NO x 2 channels.

Q: What are the advantages of using AQW210EH over LCA210?

A: The AQW210EH provides higher load current capacity (120 mA versus 85 mA) and lower on-state resistance (25 Ohms versus 35 Ohms), resulting in reduced power dissipation. The lower input trigger voltage (1.14 VDC) is compatible with LCA211 control circuits. AQW210EH is actively manufactured by Panasonic.

Q: When should AQW610EH be selected instead of AQW210EH?

A: Select AQW610EH when the application requires both normally-open and normally-closed relay functions. The AQW610EH provides SPST-NO + SPST-NC (Form A and B) in the same 8-DIP package, while maintaining identical load voltage and current ratings.

Q: Are all substitute parts compatible with existing LCA211 PCB layouts?

A: Yes. All substitute parts use the same 8-DIP (0.300", 7.62mm) package with PC Pin termination, ensuring mechanical and electrical compatibility with existing through-hole PCB designs.

Q: What compliance certifications apply to these substitute parts?

A: LCA210, AQW210EH, and AQW610EH are all ROHS3 compliant and REACH unaffected. All parts carry EAR99 export classification.

Q: Is the lower input voltage of Panasonic parts (1.14 VDC) a concern for LCA211 replacement?

A: No. The lower input trigger voltage of Panasonic PhotoMOS™ parts (1.14 VDC) is compatible with LCA211 control circuits designed for 1.2 VDC input. The Panasonic parts will trigger reliably at or below the LCA211 input specification.