PVT422P-T Solid State Relay - Equivalent & Substitute Parts

Part Overview

The PVT422P-T is a solid state relay (SSR) manufactured by Infineon Technologies, configured as a SPST-NO (Single Pole Single Throw - Normally Open) relay with dual channels in an 8-SMD surface mount package. This component is designed for AC and DC load switching applications with a maximum load voltage of 400V and 120mA per channel capacity.

The PVT422P-T is classified as obsolete. Identifying equivalent substitute parts is necessary to maintain design continuity, ensure supply chain availability, and support ongoing production or maintenance requirements for systems utilizing this component.

Substiute Parts

PVT422P-T

Infineon TechnologiesIn Stock: 5674PVT422P-T Datasheet

Current PartRFQ

AQW214SZ

Panasonic Electric WorksIn Stock: 15187AQW214SZ Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the PVT422P-T is determined by the following critical parameters:

• Circuit Configuration: SPST-NO dual channel (1 Form A x 2) - substitute must maintain identical switching topology
• Load Voltage Range: 0V ~ 400V - substitute must support this full range
• Output Type: AC and DC switching capability - substitute must support both
• Mounting Type: Surface mount with gull wing termination - substitute must be compatible with existing PCB layouts
• Input Voltage: 1.2VDC nominal - substitute input voltage must be compatible with control circuitry
• Load Current Capacity: 120mA per channel - substitute must meet or exceed this specification
• On-State Resistance: 35 Ohms maximum - substitute resistance characteristics must be acceptable for the application

The AQW214SZ from Panasonic Electric Works meets these substitution criteria while offering improved product status and compliance characteristics.

Parameter Comparison

Engineering Selection Recommendations

The AQW214SZ is a functional substitute for the obsolete PVT422P-T based on the following engineering criteria:

Functional Compatibility: Both components provide identical SPST-NO dual-channel switching topology with AC/DC output capability and 400V load voltage rating. Input voltage levels are compatible within normal control circuit tolerances.

Load Current Consideration: The AQW214SZ is rated for 80mA per channel versus the PVT422P-T's 120mA. Applications requiring the full 120mA capacity must verify that actual load current does not exceed 80mA, or alternative substitutes must be evaluated.

On-State Resistance: The AQW214SZ exhibits 50 Ohms maximum on-state resistance compared to 35 Ohms for the PVT422P-T. This 15-Ohm difference results in increased power dissipation at maximum load current. Thermal analysis of the application is required to confirm acceptable operating conditions.

Package Footprint: The AQW214SZ uses an 8-SOP package (4.40mm width) versus the PVT422P-T's 8-SMD package (7.62mm width). PCB layout modification is necessary for substitution.

Compliance and Availability: The AQW214SZ is actively manufactured with ROHS3 compliance, providing superior long-term supply chain security and regulatory alignment compared to the obsolete, RoHS non-compliant PVT422P-T.

Frequently Asked Questions (FAQ)

Q: Can the AQW214SZ directly replace the PVT422P-T without PCB modification?

A: No. The AQW214SZ uses an 8-SOP package with 4.40mm width, while the PVT422P-T uses an 8-SMD package with 7.62mm width. PCB layout and footprint changes are required.

Q: What is the impact of the 40mA load current reduction (120mA to 80mA)?

A: Applications must operate within the 80mA per-channel limit of the AQW214SZ. If the design requires 120mA capacity, load current must be verified to remain below 80mA, or alternative components must be selected.

Q: How does the increased on-state resistance affect circuit performance?

A: The AQW214SZ's 50-Ohm maximum resistance versus the PVT422P-T's 35 Ohms results in higher voltage drop and power dissipation across the relay contacts. At 80mA load current, the AQW214SZ dissipates up to 320mW compared to 336mW for the PVT422P-T at 120mA. Thermal design verification is required.

Q: Is the AQW214SZ input voltage compatible with existing control circuits?

A: Yes. The AQW214SZ operates at 1.14VDC input versus the PVT422P-T's 1.2VDC. This 60mV difference is within normal control circuit tolerances and does not require circuit redesign.

Q: What are the compliance advantages of the AQW214SZ?

A: The AQW214SZ is ROHS3 compliant and actively manufactured, whereas the PVT422P-T is obsolete and RoHS non-compliant. New designs and production runs benefit from improved regulatory alignment and supply chain continuity.

Q: Are there any other substitutes available for the PVT422P-T?

A: Based on the provided data, the AQW214SZ is the identified manufacturer-recommended substitute. Additional alternatives may exist but are not included in this reference.