PVT312S-TPBF Equivalent & Substitute Parts

Part Overview

The PVT312S-TPBF is a solid-state relay (SSR) manufactured by Infineon Technologies, classified as a SPST-NO (Single Pole Single Throw - Normally Open) device. This 6-SMD surface mount component operates with a 1.2VDC input signal and supports AC/DC loads up to 250V at 190mA maximum load current. The device is actively produced and RoHS3 compliant, making it suitable for industrial switching applications requiring galvanic isolation and fast switching response.

Equivalent and substitute parts are necessary when the primary part becomes unavailable, when alternative packaging formats are required for manufacturing processes, or when design optimization calls for different electrical characteristics within the same functional category.

Substiute Parts

PVT312S-TPBF

Infineon TechnologiesIn Stock: 1250PVT312S-TPBF Datasheet

Current PartRFQ

AQV253HA

Panasonic Electric WorksIn Stock: 1593AQV253HA Datasheet

MFR RecommendedRFQ

AQV253HAZ

Panasonic Electric WorksIn Stock: 3182AQV253HAZ Datasheet

MFR RecommendedRFQ

ASSR-3211-501E

Broadcom LimitedIn Stock: 1035ASSR-3211-501E Datasheet

MFR RecommendedRFQ

CPC1510GS

IXYS Integrated Circuits DivisionIn Stock: 1278CPC1510GS Datasheet

MFR RecommendedRFQ

CPC1510GSTR

IXYS Integrated Circuits DivisionIn Stock: 1486CPC1510GSTR Datasheet

MFR RecommendedRFQ

LCA120LS

IXYS Integrated Circuits DivisionIn Stock: 2172LCA120LS Datasheet

MFR RecommendedRFQ

LCA120LSTR

IXYS Integrated Circuits DivisionIn Stock: 1725LCA120LSTR Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the PVT312S-TPBF is determined by the following critical parameters:

Mandatory Compatibility Criteria:

• Circuit configuration: SPST-NO (1 Form A)
• Package / Case: 6-SMD (0.300", 7.62mm)
• Mounting type: Surface Mount
• Termination style: Gull Wing
• Output type: AC, DC
• Load voltage range: 0V to 250V

Allowable Variation Parameters:

• Input voltage: 1.14VDC to 1.37VDC (compatible with 1.2VDC logic levels)
• Load current: 150mA to 200mA (meets or exceeds 190mA requirement)
• On-state resistance: 8 to 20 Ohms (acceptable for switching applications)
• Product status: Active or Obsolete (functional equivalence maintained)
• Packaging format: Tube, Tape & Reel, or Cut Tape (manufacturing process dependent)

The following parts meet these substitution criteria:

Primary Substitutes (Active Status):

• AQV253HA / AQV253HAZ (Panasonic Electric Works, PhotoMOS™ AQV series)
• CPC1510GS / CPC1510GSTR (IXYS Integrated Circuits Division, OptoMOS® series)
• LCA120LS / LCA120LSTR (IXYS Integrated Circuits Division, OptoMOS® series)

Secondary Substitute (Obsolete Status):

• ASSR-3211-501E (Broadcom Limited, ASSR series)

Parameter Comparison

Engineering Selection Recommendations

For Active Production Designs:

Select AQV253HA or AQV253HAZ (Panasonic PhotoMOS™ AQV series) when maximum performance margin is required. These parts offer the lowest on-state resistance (8Ω) and highest load current rating (200mA), providing superior electrical characteristics. Both variants maintain RoHS3 compliance and active product status. Choose AQV253HAZ for tape & reel packaging in high-volume manufacturing; select AQV253HA for tube packaging in lower-volume or prototype applications.

Select CPC1510GS or CPC1510GSTR (IXYS OptoMOS® series) when cost optimization is a secondary consideration. These parts deliver 200mA load current capability with active product status and RoHS3 compliance. The higher on-state resistance (15Ω) remains acceptable for most switching applications. Choose CPC1510GSTR for cut tape & digi-reel packaging in automated assembly; select CPC1510GS for tube packaging in manual or semi-automated processes.

Select LCA120LS or LCA120LSTR (IXYS OptoMOS® series) only when load current requirements do not exceed 150mA. These parts feature the highest on-state resistance (20Ω) but maintain full RoHS3 compliance and active status. The input voltage specification matches the original part exactly (1.2VDC). Choose LCA120LSTR for tape & reel packaging; select LCA120LS for tube packaging.

For Legacy or Constrained Designs:

ASSR-3211-501E (Broadcom ASSR series) is functionally equivalent but carries obsolete product status. This part is suitable only for replacement or repair of existing assemblies where supply chain continuity is not a concern. The part maintains RoHS3 compliance and meets all electrical specifications. Avoid selection for new production designs.

Frequently Asked Questions (FAQ)

Q: Can I substitute LCA120LS for PVT312S-TPBF in my design?

A: LCA120LS is electrically compatible but with a load current limitation. The LCA120LS is rated for 150mA maximum load current, while PVT312S-TPBF supports 190mA. Substitution is valid only if your application load current does not exceed 150mA. All other parameters (voltage range, circuit configuration, package, termination) are identical.

Q: What is the difference between AQV253HA and AQV253HAZ?

A: Both parts are electrically identical Panasonic PhotoMOS™ AQV series devices with identical electrical specifications. The difference is packaging format: AQV253HA is supplied in Tube packaging, while AQV253HAZ is supplied in Tape & Reel (TR) packaging. Select based on your manufacturing process requirements. Tape & Reel is standard for high-volume automated assembly; Tube packaging is typical for lower-volume or manual assembly operations.

Q: Is ASSR-3211-501E still available for new designs?

A: ASSR-3211-501E carries obsolete product status, indicating it is no longer in active production. While inventory may be available from distributors, this part is not recommended for new design implementations. Select an active-status substitute such as AQV253HA, CPC1510GS, or LCA120LS instead.

Q: What happens if I use CPC1510GSTR instead of PVT312S-TPBF?

A: CPC1510GSTR is functionally compatible with all critical parameters matching the original part. The on-state resistance is higher (15Ω versus 10Ω), which increases power dissipation by 50% under maximum load conditions. This is acceptable in most switching applications but should be verified if thermal management is constrained. Input voltage tolerance is slightly higher (1.37VDC versus 1.2VDC), which may require verification against your control signal specifications.

Q: Can I mix packaging formats in the same production run?

A: Packaging format (Tube, Tape & Reel, Cut Tape) affects only the supply and handling method, not the electrical or mechanical properties of the component itself. Mixing formats in the same production run is not recommended from a manufacturing process perspective, as it requires different handling equipment and introduces process complexity. Standardize on a single packaging format per production batch.

Q: Are all substitute parts RoHS3 compliant?

A: All listed substitute parts maintain RoHS3 compliance except AQV253HAZ, which is RoHS compliant (not specifically RoHS3). Both compliance levels are acceptable for most applications, but verify your specific regulatory requirements. All parts are REACH Unaffected.