PVT422P Equivalent & Substitute Parts

Part Overview

The PVT422P 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 package. This component is designed for switching applications with AC and DC loads up to 400V at 120mA maximum load current. The product is classified as obsolete, making identification of compatible substitute parts essential for ongoing system maintenance and new design implementations where legacy component replacement is required.

Substiute Parts

PVT422P

Infineon TechnologiesIn Stock: 2414PVT422P Datasheet

Current PartRFQ

AQW214S

Panasonic Electric WorksIn Stock: 1899AQW214S Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the PVT422P is determined by strict equivalence across the following critical parameters:

Circuit Configuration: Both the main part and substitute must provide SPST-NO (1 Form A) x 2 dual-channel switching capability.

Load Voltage Range: The substitute must support the full 0 V ~ 400 V load voltage specification.

Output Type: AC and DC load switching capability must be maintained.

Input Voltage: The substitute input voltage (1.14VDC) remains within acceptable operating parameters for the application.

Load Current Capability: The substitute AQW214S provides 80mA maximum load current, which is lower than the original 120mA specification. This represents a functional constraint that must be evaluated against actual application requirements.

Mounting and Package Compatibility: Both components utilize surface mount technology with gull wing termination, enabling direct PCB layout compatibility.

On-State Resistance: The substitute exhibits 50 Ohms maximum on-state resistance compared to the original 35 Ohms, representing a 43% increase in resistance that may affect power dissipation characteristics.

The AQW214S (Panasonic Electric Works PhotoMOS™ AQW series) meets the core functional requirements while introducing specific trade-offs in load current capacity and on-state resistance that must be assessed for the target application.

Parameter Comparison

Engineering Selection Recommendations

Product Status Consideration: The PVT422P is classified as obsolete, while the AQW214S is active production. For new designs or long-term system support, the AQW214S provides access to ongoing manufacturer support and supply chain availability.

Compliance Status: The AQW214S is ROHS3 compliant, whereas the PVT422P is RoHS non-compliant. Systems subject to RoHS regulatory requirements must transition to the AQW214S or equivalent compliant alternatives.

Load Current Derating: The AQW214S maximum load current of 80mA is 33% lower than the PVT422P specification of 120mA. Applications operating at or near the 120mA limit require circuit redesign or alternative component selection.

On-State Resistance Impact: The increased on-state resistance (50 Ohms vs. 35 Ohms) results in higher power dissipation during conduction. Thermal analysis of the application circuit is necessary to confirm acceptable operating conditions.

Package Footprint Difference: The AQW214S uses an 8-SOP package (4.40mm width) compared to the 8-SMD package (7.62mm width) of the PVT422P. PCB layout modification is required for physical substitution.

Frequently Asked Questions (FAQ)

Q: Can the AQW214S directly replace the PVT422P without circuit modification?

A: Physical substitution requires PCB layout changes due to different package dimensions (8-SOP vs. 8-SMD). Functional substitution depends on application load current requirements. If the application draws more than 80mA, the AQW214S cannot be used without circuit redesign.

Q: What is the impact of the 50 Ohm on-state resistance versus 35 Ohms?

A: The higher on-state resistance increases power dissipation in the relay during conduction. For a 100mA load at 400V, power dissipation increases from 0.35W to 0.50W. Thermal management and component placement must account for this difference.

Q: Are there compatibility issues with the input voltage difference (1.2VDC vs. 1.14VDC)?

A: The 0.06VDC difference is within normal component tolerance ranges and does not present a functional compatibility issue for standard control circuit applications.

Q: Does the ROHS3 compliance of the AQW214S affect electrical performance?

A: RoHS3 compliance indicates material composition restrictions but does not alter the electrical switching characteristics or performance of the component in the application circuit.

Q: What is the significance of the package width reduction from 7.62mm to 4.40mm?

A: The narrower 8-SOP package reduces PCB footprint area, which may enable higher component density. However, PCB artwork and assembly tooling must be updated to accommodate the new package geometry.

Q: Can the AQW214S handle the full 400V load voltage specification?

A: Yes, the AQW214S is rated for 0 V ~ 400 V load voltage, matching the PVT422P specification.