TLV431ALP Equivalent & Substitute Parts

Part Overview

The TLV431ALP is a shunt voltage reference IC manufactured by onsemi, designed for adjustable voltage regulation applications. This component provides a fixed minimum output of 1.24V with a maximum output of 16V, delivering up to 20mA output current with ±1% tolerance. The device is packaged in TO-92-3 (TO-226) through-hole configuration and operates across the industrial temperature range of -40°C to 85°C.

The TLV431ALP is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support, maintenance, and production continuity. Identifying compatible alternatives ensures system reliability and supply chain flexibility.

Substiute Parts

TLV431ALP

onsemiIn Stock: 3216TLV431ALP Datasheet

Current PartRFQ

TLV431ALPG

onsemiIn Stock: 25205TLV431ALPG Datasheet

DirectRFQ

TLV431AILPE3

Texas InstrumentsIn Stock: 2700TLV431AILPE3 Datasheet

SimilarRFQ

TLV431AILPM

Texas InstrumentsIn Stock: 2969TLV431AILPM Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the TLV431ALP is determined by strict alignment of electrical and mechanical parameters. The critical parameters governing substitutability are:

• Reference type (Shunt)
• Output type (Adjustable)
• Minimum output voltage (1.24V fixed)
• Maximum output voltage capability
• Output current rating
• Tolerance specification (±1%)
• Cathode current (80µA)
• Operating temperature range (-40°C to 85°C)
• Through-hole mounting configuration
• TO-92-3 package compatibility

Substitute parts are classified into two categories:

Direct Manufacturer Substitute: TLV431ALPG maintains identical electrical specifications and package configuration as the main part, with the primary difference being packaging format (Bulk vs. standard) and improved RoHS3 compliance status.

Similar Manufacturer Substitutes: TLV431AILPE3 and TLV431AILPM are manufactured by Texas Instruments and share the same base product number (TLV431), reference type, output type, tolerance, and operating temperature range. However, these parts have reduced maximum output voltage (6V vs. 16V) and lower output current rating (15mA vs. 20mA), requiring verification of application-specific voltage and current requirements before selection.

Parameter Comparison

Engineering Selection Recommendations

TLV431ALPG (Direct Substitute): This part is the preferred direct replacement for TLV431ALP. It maintains identical electrical specifications (16V maximum output, 20mA output current) and package configuration (TO-92-3 Long Body). The primary advantage is ROHS3 compliance status, making it suitable for applications requiring modern environmental standards. Both parts share obsolete product status, indicating limited future availability.

TLV431AILPE3 and TLV431AILPM (Similar Substitutes): These Texas Instruments alternatives are suitable only for applications where the maximum output voltage requirement does not exceed 6V and output current does not exceed 15mA. Both parts offer ROHS3 compliance. TLV431AILPM carries Last Time Buy status, indicating more restricted availability than TLV431AILPE3. The TO-92-3 package configuration remains compatible with through-hole PCB designs, though TLV431AILPM features formed leads.

Selection between direct and similar substitutes depends on application voltage and current requirements. Direct substitutes provide full electrical compatibility, while similar substitutes require verification of reduced voltage and current ratings within the specific circuit design.

Frequently Asked Questions (FAQ)

Q: Can TLV431AILPE3 or TLV431AILPM replace TLV431ALP in any application?

A: These parts can replace TLV431ALP only if the application maximum output voltage requirement is 6V or lower and output current requirement is 15mA or lower. The reduced voltage and current ratings of these Texas Instruments parts make them unsuitable for applications requiring the full 16V and 20mA capabilities of the original TLV431ALP.

Q: What is the difference between TLV431ALPG and TLV431ALP?

A: TLV431ALPG is electrically and mechanically identical to TLV431ALP, with the primary difference being packaging format (Bulk vs. standard) and RoHS3 compliance status. Both maintain the same 16V maximum output voltage, 20mA output current, and TO-92-3 package configuration.

Q: Are all substitute parts compatible with the same PCB footprint?

A: All listed substitutes use TO-92-3 through-hole packaging and are compatible with the same PCB footprint. TLV431AILPM features formed leads, which may require minor lead-forming adjustments during assembly, while TLV431ALP and TLV431ALPG use standard long-body leads.

Q: What does the obsolete or Last Time Buy status mean for part selection?

A: Obsolete status indicates the part is no longer manufactured and available inventory is limited. Last Time Buy status indicates the manufacturer has announced final production, with limited availability before discontinuation. Both statuses necessitate identifying and qualifying substitute parts for long-term supply chain planning.

Q: Do all substitute parts meet the same environmental compliance standards?

A: TLV431ALP is RoHS non-compliant, while TLV431ALPG, TLV431AILPE3, and TLV431AILPM are all ROHS3 compliant. All parts maintain REACH Unaffected and EAR99 ECCN classifications. Applications requiring modern environmental compliance should prioritize ROHS3-compliant alternatives.