AQV204 Equivalent & Substitute Parts

Part Overview

The AQV204 is a solid-state relay (SSR) manufactured by Panasonic Electric Works, configured as a SPST-NO (Single Pole Single Throw - Normally Open) switching device. This PhotoMOS™ series component operates with a 2.3VDC input signal and supports load voltages from 0V to 400V with a maximum load current of 150mA. The device is housed in a 6-DIP through-hole package and is actively produced with ROHS3 compliance. Equivalent and substitute parts are identified when they maintain the same circuit topology, package form factor, and electrical operating range while meeting the same regulatory standards.

Substiute Parts

AQV204

Panasonic Electric WorksIn Stock: 1674AQV204 Datasheet

Current PartRFQ

LH1525AT

Vishay Semiconductor Opto DivisionIn Stock: 12644LH1525AT Datasheet

SimilarRFQ

PLA110

IXYS Integrated Circuits DivisionIn Stock: 2139PLA110 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the AQV204 is determined by the following criteria:

Primary Compatibility Requirements:

• Circuit topology must be SPST-NO (1 Form A)
• Package must be 6-DIP (0.300", 7.62mm) with PC Pin termination
• Load voltage range must encompass 0V to 400V
• Output type must support both AC and DC loads
• Mounting type must be Through Hole

Secondary Compatibility Factors:

• Load current rating must meet or exceed 150mA
• Input voltage must be compatible with control circuit design
• On-state resistance affects switching performance and heat dissipation
• RoHS3 compliance ensures regulatory alignment

The identified substitute parts (LH1525AT and PLA110) satisfy all primary requirements and maintain active product status with equivalent regulatory certifications.

Parameter Comparison

Engineering Selection Recommendations

All three components maintain active product status and ROHS3 compliance, ensuring regulatory alignment and long-term availability. Selection between the AQV204 and its substitutes depends on specific application requirements:

AQV204 (Panasonic Electric Works): Primary choice when input voltage of 2.3VDC is available and on-state resistance of 16 Ohms is acceptable. Lowest on-state resistance minimizes power dissipation in the switching element.

LH1525AT (Vishay Semiconductor Opto Division): Suitable when lower input voltage (1.16VDC) is required or when load current exceeds 150mA (rated to 250mA). Higher on-state resistance (36 Ohms) results in increased power dissipation and should be evaluated against thermal design constraints.

PLA110 (IXYS Integrated Circuits Division): Applicable when input voltage of 1.2VDC is required while maintaining 150mA load current capability. On-state resistance of 22 Ohms represents a middle ground between the AQV204 and LH1525AT.

Frequently Asked Questions (FAQ)

Q: Can the LH1525AT replace the AQV204 in all applications?

A: The LH1525AT is mechanically and electrically compatible as a substitute. However, the higher on-state resistance (36 Ohms vs. 16 Ohms) increases power dissipation. Applications with tight thermal budgets or high switching frequency must account for this difference. The lower input voltage requirement (1.16VDC vs. 2.3VDC) may require control circuit adjustment.

Q: What is the significance of on-state resistance differences?

A: On-state resistance directly affects power dissipation in the relay during conduction. The AQV204 dissipates less heat than the LH1525AT at equivalent load currents. For applications with continuous or high-frequency switching, lower on-state resistance reduces thermal stress and extends component life.

Q: Are all three parts pin-compatible?

A: Yes. All three components use the 6-DIP (0.300", 7.62mm) package with PC Pin termination and identical SPST-NO circuit topology. Direct socket substitution is possible without PCB modification.

Q: What load current margin exists with each part?

A: The AQV204 and PLA110 are both rated for 150mA maximum load current. The LH1525AT provides 250mA capacity, offering 100mA additional margin. Applications requiring load currents between 150mA and 250mA must use the LH1525AT.

Q: How do input voltage requirements affect circuit design?

A: The AQV204 requires 2.3VDC input, while the LH1525AT and PLA110 require lower voltages (1.16VDC and 1.2VDC respectively). Lower input voltage requirements reduce control circuit power consumption and may simplify driver design. Existing control circuits must be evaluated for compatibility with the selected part's input voltage specification.

Q: Are all parts suitable for both AC and DC load switching?

A: Yes. All three components support both AC and DC output types across the 0V to 400V load voltage range. Application-specific load characteristics (resistive, inductive, capacitive) should be evaluated independently of part selection.