TLV431BCLP Equivalent & Substitute Parts

Part Overview

The TLV431BCLP is a shunt voltage reference IC with adjustable output, manufactured by Texas Instruments. This component functions as a precision voltage reference in power management applications, offering adjustable output from 1.24V to 6V with ±0.5% tolerance. The TLV431BCLP is classified as Last Time Buy, indicating discontinued production. Identifying equivalent substitute parts is necessary to ensure design continuity and maintain supply chain reliability for new production runs or design revisions.

Substiute Parts

TLV431BCLP

Texas InstrumentsIn Stock: 972TLV431BCLP Datasheet

Current PartRFQ

TLV431BIDBZR

Texas InstrumentsIn Stock: 39225TLV431BIDBZR Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the TLV431BCLP is determined by electrical parameter equivalence across the following criteria:

• Reference Type: Shunt voltage reference
• Output Type: Adjustable
• Voltage Range: 1.24V to 6V output capability
• Output Current: 15 mA
• Tolerance: ±0.5%
• Cathode Current: 100 µA
• Base Product Number: TLV431

The TLV431BIDBZR qualifies as a direct electrical substitute, maintaining identical electrical specifications while differing in packaging format (Surface Mount SOT-23-3 versus Through Hole TO-92-3) and operating temperature range extension (-40°C ~ 85°C versus 0°C ~ 70°C).

Parameter Comparison

Engineering Selection Recommendations

The TLV431BIDBZR is the recommended substitute for the TLV431BCLP based on the following factors:

• Electrical specifications are identical across all critical parameters: reference type, output voltage range, output current, tolerance, and cathode current.
• Both parts maintain ROHS3 compliance and REACH unaffected status.
• The TLV431BIDBZR carries Active product status with significantly higher inventory availability (39,200 pcs versus 921 pcs), ensuring long-term supply continuity.
• The extended operating temperature range (-40°C ~ 85°C) of the TLV431BIDBZR provides broader environmental compatibility compared to the main part's 0°C ~ 70°C range.
• Package and mounting type differences (SOT-23-3 Surface Mount versus TO-92-3 Through Hole) require PCB layout modification but do not affect electrical functionality.

Frequently Asked Questions (FAQ)

Q: Can the TLV431BIDBZR directly replace the TLV431BCLP without circuit modification?

A: Electrical substitution is direct. The TLV431BIDBZR maintains identical voltage reference specifications, output current, tolerance, and cathode current. However, the package change from TO-92-3 (Through Hole) to SOT-23-3 (Surface Mount) requires PCB layout redesign. Pin-to-pin electrical functionality remains equivalent.

Q: What is the impact of the operating temperature range difference?

A: The TLV431BCLP operates from 0°C to 70°C, while the TLV431BIDBZR operates from -40°C to 85°C. If your application operates within the 0°C to 70°C window, both parts are functionally equivalent. The TLV431BIDBZR provides additional margin for extended temperature environments.

Q: Why is the TLV431BCLP marked as Last Time Buy?

A: Last Time Buy status indicates Texas Instruments has discontinued production of this part number. The TLV431BIDBZR, with Active status and higher inventory levels, is the recommended path forward for new designs and production continuity.

Q: Are there packaging considerations for high-volume production?

A: The TLV431BIDBZR is supplied in Cut Tape (CT) and Digi-Reel packaging formats, suitable for automated assembly processes. The TLV431BCLP is supplied in Bulk packaging. Surface mount assembly (SOT-23-3) typically offers faster production throughput compared to through-hole assembly (TO-92-3).

Q: Do both parts meet the same compliance standards?

A: Yes. Both the TLV431BCLP and TLV431BIDBZR are ROHS3 compliant and REACH unaffected, with identical ECCN (EAR99) and HTSUS (8542.39.0001) classifications.