TLV431ALPRA Equivalent & Substitute Parts

Part Overview

The TLV431ALPRA is a shunt voltage reference IC manufactured by onsemi, designed for adjustable voltage regulation applications. This component provides a fixed output voltage of 1.24V with adjustable capability up to 16V, delivering up to 20mA output current with ±1% tolerance. The part is classified as obsolete, which necessitates identification of functionally equivalent alternatives for ongoing design requirements and production continuity.

Substiute Parts

TLV431ALPRA

onsemiIn Stock: 1340TLV431ALPRA Datasheet

Current PartRFQ

TLV431ALPRAG

onsemiIn Stock: 2409TLV431ALPRAG Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the TLV431ALPRA is determined by electrical and mechanical parameter equivalence. The critical parameters for substitution are:

• Reference type (Shunt)
• Output type (Adjustable)
• Voltage output range (1.24V minimum, 16V maximum)
• Output current capability (20mA)
• Tolerance specification (±1%)
• Cathode current (80µA)
• Operating temperature range (-40°C to 85°C)
• Mounting type (Through Hole)
• Package compatibility (TO-92-3 or equivalent TO-226 variants)

The TLV431ALPRAG meets all these criteria and is therefore a direct functional equivalent. The primary distinction between the main part and substitute is product status and packaging format.

Parameter Comparison

Engineering Selection Recommendations

The TLV431ALPRAG is the direct equivalent for the obsolete TLV431ALPRA. Both components share identical electrical specifications and package compatibility. Selection between these parts should be based on the following factors:

Product Status: The TLV431ALPRA is obsolete, while the TLV431ALPRAG maintains active production status. For new designs or long-term production requirements, the TLV431ALPRAG is the appropriate choice.

Regulatory Compliance: The TLV431ALPRAG is ROHS3 compliant, whereas the TLV431ALPRA is non-compliant. Applications subject to RoHS regulations require the TLV431ALPRAG.

Availability: The TLV431ALPRAG has higher inventory availability (2300 pcs) compared to the TLV431ALPRA (1300 pcs), supporting production continuity.

Packaging: The TLV431ALPRA is supplied in tube packaging, while the TLV431ALPRAG is supplied in cut tape format. Packaging selection depends on assembly process requirements and volume considerations.

Frequently Asked Questions (FAQ)

Q: Can the TLV431ALPRAG directly replace the TLV431ALPRA in existing designs?

A: Yes. Both components are manufactured by onsemi and share identical electrical specifications, including voltage output range (1.24V to 16V), output current (20mA), tolerance (±1%), and operating temperature range (-40°C to 85°C). Package compatibility is maintained across both TO-92-3 and TO-226-3 variants.

Q: What is the primary reason to transition from TLV431ALPRA to TLV431ALPRAG?

A: The TLV431ALPRA is classified as obsolete. The TLV431ALPRAG is the active production equivalent, ensuring long-term supply availability and supporting regulatory compliance requirements.

Q: Are there differences in electrical performance between these parts?

A: No. Both components deliver identical electrical performance across all specified parameters: shunt reference type, adjustable output type, 1.24V minimum voltage, 16V maximum voltage, 20mA output current, ±1% tolerance, and 80µA cathode current.

Q: Does packaging format affect electrical performance?

A: No. The TLV431ALPRA (tube packaging) and TLV431ALPRAG (cut tape packaging) are electrically identical. Packaging format selection is determined by assembly process requirements and production volume.

Q: Is the TLV431ALPRAG suitable for RoHS-regulated applications?

A: Yes. The TLV431ALPRAG is ROHS3 compliant. The TLV431ALPRA is non-compliant and cannot be used in applications subject to RoHS regulations.

Q: What is the base product number for these components?

A: Both the TLV431ALPRA and TLV431ALPRAG share the base product number TLV431, indicating they are variants of the same core design with different packaging and compliance specifications.