TL430CLP Equivalent & Substitute Parts

Part Overview

The TL430CLP is a shunt voltage reference IC with adjustable output, manufactured by Texas Instruments. This through-hole component operates in the power management category and provides a fixed output voltage of 2.75V with a maximum of 30V, delivering up to 100 mA output current. The device is currently in Last Time Buy status, indicating limited availability and the necessity to identify equivalent or substitute components for ongoing design requirements and production continuity.

Substiute Parts

TL430CLP

Texas InstrumentsIn Stock: 4457TL430CLP Datasheet

Current PartRFQ

TL431AIDBZR

Texas InstrumentsIn Stock: 113487TL431AIDBZR Datasheet

MFR RecommendedRFQ

TL430CLP

Texas InstrumentsIn Stock: 4457TL430CLP Datasheet

Parametric EquivalentRFQ

TL430CLPE3

Texas InstrumentsIn Stock: 763TL430CLPE3 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the TL430CLP is determined by the following critical parameters: reference type (shunt), output type (adjustable), output voltage range compatibility (minimum 2.75V, maximum 30V), output current capability (100 mA), and tolerance specifications (±9.09%). The TL430CLP belongs to the TL430 base product family.

Two categories of substitutes are identified:

MFR Recommended Substitute: The TL431AIDBZR is the manufacturer-recommended upgrade path. While it maintains the same shunt reference type and adjustable output characteristics with identical 100 mA output current, it offers superior tolerance (±1% versus ±9.09%), extended voltage range (36V maximum versus 30V), and improved operating temperature range (-40°C to 85°C versus 0°C to 70°C). The primary trade-off is the package format change from through-hole TO-92-3 to surface-mount SOT-23-3.

Parametric Equivalent: The TL430CLPE3 provides identical electrical specifications to the TL430CLP, maintaining the same voltage range, tolerance, temperature coefficient, and noise characteristics. This part shares the same through-hole TO-92-3 package format, making it a direct form-fit-function replacement. However, the TL430CLPE3 is classified as Obsolete, limiting its long-term availability.

Parameter Comparison

Engineering Selection Recommendations

For New Designs: The TL431AIDBZR is the appropriate selection. It is an active product with manufacturer support, offers superior tolerance specifications (±1%), extended operating temperature range, and higher maximum voltage rating (36V). The surface-mount SOT-23-3 package aligns with modern PCB assembly practices. Design modifications to accommodate the package change are required.

For Existing Through-Hole Designs: The TL430CLPE3 provides direct compatibility with current board layouts and assembly processes, maintaining the TO-92-3 through-hole package. However, its Obsolete status necessitates careful inventory planning and long-term supply chain assessment.

For Last Time Buy Mitigation: Given the TL430CLP's Last Time Buy status, transitioning to the TL431AIDBZR is the recommended long-term strategy to ensure sustained component availability and design continuity.

All substitute parts maintain ROHS3 compliance and REACH Unaffected status, consistent with the original TL430CLP specifications.

Frequently Asked Questions (FAQ)

Q: Can the TL431AIDBZR directly replace the TL430CLP without circuit modifications?

A: The TL431AIDBZR maintains functional equivalence as a shunt voltage reference with adjustable output and identical 100 mA output current. However, the package format differs: TL431AIDBZR uses surface-mount SOT-23-3 while TL430CLP uses through-hole TO-92-3. PCB layout and assembly process modifications are required. Additionally, the lower minimum output voltage (2.495V versus 2.75V) and lower cathode current (700 µA versus 2 mA) must be evaluated against circuit requirements.

Q: What are the key differences between the TL431AIDBZR and TL430CLP?

A: The primary differences are tolerance (±1% versus ±9.09%), maximum voltage rating (36V versus 30V), operating temperature range (-40°C to 85°C versus 0°C to 70°C), cathode current (700 µA versus 2 mA), and package format (SOT-23-3 surface-mount versus TO-92-3 through-hole). The TL431AIDBZR is an active product, while the TL430CLP is Last Time Buy.

Q: Is the TL430CLPE3 a viable long-term substitute?

A: The TL430CLPE3 provides identical electrical specifications and through-hole package compatibility with the TL430CLP. However, its Obsolete product status limits long-term availability and supplier support. It is suitable for short-term inventory replenishment only.

Q: What compliance certifications apply to these substitute parts?

A: All three parts (TL430CLP, TL431AIDBZR, and TL430CLPE3) are ROHS3 Compliant and REACH Unaffected, meeting current environmental and regulatory requirements.

Q: How does the tolerance specification affect circuit performance?

A: The TL430CLP and TL430CLPE3 operate at ±9.09% tolerance, while the TL431AIDBZR operates at ±1% tolerance. Applications requiring tighter voltage reference accuracy benefit from the TL431AIDBZR. Designs tolerating wider voltage variation can use either the TL430CLP or TL430CLPE3.