AQV225AX Equivalent & Substitute Parts

Part Overview

The AQV225AX is a Surface Mount Solid State Relay (SSR) manufactured by Panasonic Electric Works, configured as a SPST-NO (1 Form A) relay with a maximum load current of 50 mA and load voltage range of 0–80 V. This component is part of the PhotoMOS™ AQV series and is currently classified as obsolete. Due to its discontinued status, identifying functionally equivalent substitute parts is essential for design continuity, maintenance, and production support.

Substiute Parts

AQV225AX

Panasonic Electric WorksIn Stock: 4590AQV225AX Datasheet

Current PartRFQ

CS135

Coto TechnologyIn Stock: 2149CS135 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the AQV225AX is determined by strict alignment of the following critical parameters:

• Circuit Configuration: Must be SPST-NO (1 Form A) to maintain identical switching topology
• Package / Case: Must be 6-SMD (0.300", 7.62mm) with Gull Wing termination for PCB compatibility
• Mounting Type: Must be Surface Mount for assembly process compatibility
• Load Voltage Range: Must support 0–80 V to ensure operational envelope compatibility
• Output Type: Must support AC and DC switching modes
• Load Current Capability: Substitute must meet or exceed the 50 mA maximum load current requirement

The CS135 manufactured by Coto Technology meets all substitution criteria. It maintains identical circuit configuration, package geometry, and voltage specifications while providing enhanced load current capability (100 mA) and improved on-state resistance (30 Ohms maximum).

Parameter Comparison

Engineering Selection Recommendations

The CS135 is the qualified substitute for the AQV225AX based on the following engineering criteria:

Functional Equivalence: Both components share identical circuit topology (SPST-NO), load voltage range (0–80 V), package geometry (6-SMD 0.300"), and termination style (Gull Wing). This ensures direct PCB compatibility without layout modifications.

Performance Enhancement: The CS135 provides superior electrical performance with 100 mA load current capacity (versus 50 mA) and 30 Ohms maximum on-state resistance (versus 50 Ohms). These improvements provide operational margin and reduced power dissipation in the switching path.

Product Status and Compliance: The AQV225AX is obsolete with no active manufacturing. The CS135 is actively produced by Coto Technology and carries ROHS3 compliance certification, meeting current regulatory and supply chain requirements.

Input Voltage Tolerance: The CS135 requires 1.37 VDC input versus 1.14 VDC for the AQV225AX. This higher threshold is compatible with standard logic-level drive circuits and does not present a limitation for typical SSR control applications.

Frequently Asked Questions (FAQ)

Q: Can the CS135 be used as a direct replacement for the AQV225AX without PCB modifications?

A: Yes. Both components use identical 6-SMD (0.300", 7.62mm) packages with Gull Wing termination. No PCB layout changes are required for mechanical or electrical integration.

Q: What is the significance of the higher input voltage requirement (1.37 VDC vs. 1.14 VDC) on the CS135?

A: The CS135 requires a slightly higher input voltage to activate. This is compatible with standard logic-level control signals (3.3 V, 5 V) and does not present a practical limitation. Verify that your control circuit can supply the required 1.37 VDC threshold.

Q: Does the CS135 support the same load voltage range as the AQV225AX?

A: Yes. Both components support 0–80 V load voltage range, ensuring identical operational envelope for AC and DC switching applications.

Q: Why does the CS135 have higher load current and lower on-state resistance than the AQV225AX?

A: The CS135 represents a more recent design with improved semiconductor technology. The 100 mA load current and 30 Ohms on-state resistance provide enhanced performance margin and reduced power dissipation compared to the 50 mA and 50 Ohms specifications of the AQV225AX.

Q: Is the CS135 compliant with current environmental and regulatory standards?

A: Yes. The CS135 carries ROHS3 compliance certification and REACH Unaffected status, meeting current regulatory requirements for electronic components in most markets.

Q: What is the packaging format for the CS135?

A: The CS135 is supplied in Tube packaging. Confirm that your procurement and assembly processes accommodate tube packaging, or consult with your supplier regarding alternative packaging options if required.