PVT322AS Equivalent & Substitute Parts

Part Overview

The PVT322AS 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 rated for 170 mA load current at 0–250 V AC/DC output with a 1.2 VDC input trigger voltage and 8 Ohms maximum on-state resistance.

The PVT322AS is classified as obsolete. Identifying equivalent and 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

PVT322AS

Infineon TechnologiesIn Stock: 1364PVT322AS Datasheet

Current PartRFQ

PVT322ASPBF

Infineon TechnologiesIn Stock: 1566PVT322ASPBF Datasheet

DirectRFQ

AQW282SX

Panasonic Electric WorksIn Stock: 2798AQW282SX Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the PVT322AS is evaluated based on the following critical parameters that define functional equivalence:

Primary Substitution Criteria:

• Circuit configuration: SPST-NO (1 Form A) x 2
• Mounting type: Surface Mount
• Input voltage: 1.2 VDC nominal
• Output type: AC and DC capability
• Termination style: Gull Wing
• Package form factor compatibility

Identified Substitute Categories:

Direct Equivalent (Same Manufacturer, Different Packaging): PVT322ASPBF is the active production variant of the PVT322AS from Infineon Technologies. This part maintains identical electrical specifications, circuit configuration, and package dimensions while differing only in packaging format (Tube vs. standard packaging) and product status (Active vs. Obsolete).

Cross-Manufacturer Substitute (Functional Alternative): AQW282SX is a PhotoMOS™ solid-state relay from Panasonic Electric Works. While this part shares the same circuit configuration (SPST-NO x 2), surface mount technology, and gull wing termination, it operates within different electrical parameters: 1.14 VDC input, 0–60 V load voltage, and 350 mA load current with 2.5 Ohms on-state resistance. This substitute is applicable only when the load voltage requirement does not exceed 60 V and the higher current capacity is acceptable or beneficial.

Parameter Comparison

Engineering Selection Recommendations

For Direct Replacement (Recommended Primary Path):

PVT322ASPBF is the preferred substitute for PVT322AS. Both parts are manufactured by Infineon Technologies and maintain identical electrical and mechanical specifications. PVT322ASPBF carries Active product status, ensuring ongoing availability and supply chain support. Additionally, PVT322ASPBF is RoHS3 Compliant, whereas the original PVT322AS is RoHS non-compliant, making this substitute advantageous for applications subject to environmental or regulatory compliance requirements.

For Cross-Manufacturer Substitution (Conditional):

AQW282SX from Panasonic Electric Works may be selected as an alternative when the following conditions are met:

• The application load voltage does not exceed 60 V (versus the 250 V maximum of PVT322AS)
• The higher load current capacity (350 mA vs. 170 mA) is acceptable or beneficial to the circuit design
• The reduced on-state resistance (2.5 Ohms vs. 8 Ohms) does not introduce unintended circuit behavior
• The smaller package footprint (8-SOP 4.40mm vs. 8-SMD 7.62mm) is compatible with PCB layout constraints
• RoHS compliance is required (AQW282SX is RoHS Compliant)

AQW282SX is not suitable for applications requiring load voltages above 60 V.

Frequently Asked Questions (FAQ)

Q: Can PVT322ASPBF be used as a direct drop-in replacement for PVT322AS?

A: Yes. PVT322ASPBF is electrically and mechanically identical to PVT322AS. Both parts share the same input voltage (1.2 VDC), load voltage range (0–250 V), load current (170 mA), on-state resistance (8 Ohms), circuit configuration (SPST-NO x 2), and package dimensions (8-SMD 0.300" / 7.62mm). The primary differences are packaging format and product status. PVT322ASPBF is the active production equivalent.

Q: What are the key limitations of AQW282SX as a substitute?

A: AQW282SX has a maximum load voltage rating of 60 V, compared to 250 V for PVT322AS. This part is not suitable for applications requiring higher voltage switching. Additionally, the package footprint differs (8-SOP 4.40mm vs. 8-SMD 7.62mm), requiring PCB layout verification before implementation.

Q: Are there compliance differences between these parts?

A: Yes. PVT322AS is RoHS non-compliant. PVT322ASPBF is RoHS3 Compliant, and AQW282SX is RoHS Compliant. For applications subject to RoHS directives or customer compliance requirements, PVT322ASPBF or AQW282SX are preferred.

Q: Does the input voltage difference between PVT322AS (1.2 VDC) and AQW282SX (1.14 VDC) affect substitution?

A: The input voltage difference of 0.06 VDC is negligible for most control circuit applications. Both values fall within standard logic-level signal ranges and do not present a practical substitution barrier.

Q: Can AQW282SX handle the same load current as PVT322AS?

A: AQW282SX is rated for 350 mA, which exceeds the 170 mA rating of PVT322AS. The higher current capacity does not prevent substitution; however, the load voltage limitation (60 V maximum) remains the primary constraint for cross-manufacturer substitution.

Q: What should be verified before selecting AQW282SX?

A: Confirm that the application load voltage does not exceed 60 V. Verify PCB layout compatibility with the smaller 8-SOP package footprint. Ensure that the reduced on-state resistance (2.5 Ohms vs. 8 Ohms) does not alter circuit behavior or introduce thermal considerations.