LCA710 Solid State Relay SPST-NO Equivalent & Substitute Parts

Part Overview

The LCA710 is an IXYS OptoMOS® solid state relay (SSR) configured as a single-pole single-throw normally open (SPST-NO) switch. This 6-DIP through-hole component operates with a 1.2 VDC input signal and supports load voltages from 0 V to 60 V at 1 A maximum current. The LCA710 is classified as an active product with ROHS3 compliance and unlimited moisture sensitivity rating (MSL 1). Equivalent and substitute parts are identified based on matching circuit topology, package form factor, voltage ratings, and load current specifications within acceptable operational parameters.

Substiute Parts

LCA710

IXYS Integrated Circuits DivisionIn Stock: 1803LCA710 Datasheet

Current PartRFQ

AQV212

Panasonic Electric WorksIn Stock: 19070AQV212 Datasheet

MFR RecommendedRFQ

AQV252

Panasonic Electric WorksIn Stock: 3062AQV252 Datasheet

MFR RecommendedRFQ

AQV252G

Panasonic Electric WorksIn Stock: 15906AQV252G Datasheet

MFR RecommendedRFQ

ASSR-1411-001E

Broadcom LimitedIn Stock: 1892ASSR-1411-001E Datasheet

MFR RecommendedRFQ

ASSR-1611-001E

Broadcom LimitedIn Stock: 2559ASSR-1611-001E Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the LCA710 is determined by the following criteria:

Mandatory Matching Parameters:

• Circuit configuration: SPST-NO (1 Form A)
• Package form factor: 6-DIP (0.300", 7.62mm)
• Mounting type: Through Hole
• Termination style: PC Pin
• Load voltage range: 0 V ~ 60 V
• Output type: AC, DC capable
• Product status: Active

Allowable Variation Parameters:

• Input voltage: Within compatible signal levels (1.14 VDC to 1.3 VDC acceptable)
• Load current: Equal to or greater than 1 A requirement
• On-state resistance: Lower values acceptable (improved performance)

The five substitute parts listed below meet all mandatory matching criteria and operate within the specified load voltage and output type requirements. Substitutes are grouped by load current capability: lower current variants (AQV212, AQV252, ASSR-1411-001E) and higher current variants (AQV252G, ASSR-1611-001E).

Parameter Comparison

Engineering Selection Recommendations

All five substitute parts are classified as active products with ROHS3 compliance and REACH unaffected status, matching the regulatory and environmental compliance profile of the LCA710.

For applications requiring load current at or below 1 A: AQV212, AQV252, and ASSR-1411-001E are suitable substitutes. These parts operate within the 1 A load current specification of the LCA710. AQV252G and ASSR-1611-001E provide higher current capacity (2.5 A) and may be selected when future design margin or higher load current capability is required.

For applications requiring load current above 1 A: AQV252G and ASSR-1611-001E are the appropriate selections, both rated at 2.5 A maximum load current.

All substitute parts maintain the 0 V to 60 V load voltage range and AC/DC output capability of the LCA710. Input voltage levels across all parts (1.14 VDC to 1.3 VDC) are compatible with standard logic signal sources.

Frequently Asked Questions (FAQ)

Q: Can AQV252 be used as a direct replacement for LCA710? A: AQV252 meets all mandatory substitution criteria: SPST-NO circuit, 6-DIP package, through-hole mounting, and 0 V to 60 V load voltage range. However, AQV252 is rated at 400 mA maximum load current, which is below the 1 A specification of the LCA710. Use AQV252 only in applications where actual load current does not exceed 400 mA.

Q: What is the difference between AQV252 and AQV252G? A: Both parts share the same package, circuit configuration, and voltage ratings. The primary difference is load current capacity: AQV252 is rated at 400 mA, while AQV252G is rated at 2.5 A. AQV252G also features lower on-state resistance (120 mOhms vs. 1.4 Ohms), resulting in reduced power dissipation at higher currents.

Q: Are Panasonic PhotoMOS™ and Broadcom ASSR parts interchangeable with the IXYS LCA710? A: Yes, within the specified load current limits. All three manufacturers' parts share identical package geometry (6-DIP), circuit topology (SPST-NO), and voltage ratings (0 V to 60 V). Substitution is valid when the selected part's load current rating meets or exceeds the application requirement.

Q: Does input voltage variation affect substitution eligibility? A: Input voltage levels across all parts range from 1.14 VDC to 1.3 VDC, a variation of ±0.1 VDC from the LCA710's 1.2 VDC specification. This variation is within typical logic signal tolerances and does not affect substitution eligibility for standard applications.

Q: Can a higher-rated substitute part (e.g., AQV252G at 2.5 A) be used in place of the LCA710 (1 A)? A: Yes. Higher current-rated parts are suitable substitutes when the application load current does not exceed the LCA710's 1 A specification. The higher rating provides design margin and does not degrade performance in lower-current applications.

Q: What is the significance of on-state resistance differences among substitute parts? A: On-state resistance affects power dissipation and voltage drop across the relay contacts. Lower on-state resistance (e.g., 100 mOhms in ASSR-1611-001E) results in reduced heat generation and voltage drop compared to higher resistance values (e.g., 2.5 Ohms in AQV212). Selection should consider thermal management and voltage drop requirements of the specific application.

Q: Are all substitute parts suitable for both AC and DC load switching? A: Yes. All listed substitute parts support both AC and DC output types, matching the LCA710 specification.