TLV431BQLP Equivalent & Substitute Parts

Part Overview

The TLV431BQLP is a shunt voltage reference IC manufactured by Texas Instruments, designed for precision voltage regulation applications. This adjustable reference provides a fixed output of 1.24V with a maximum output of 6V and supports a 15mA output current with ±0.5% tolerance. The device is packaged in TO-92-3 (through-hole) configuration and operates across the temperature range of -40°C to 125°C. Currently classified as Last Time Buy, alternative packaging options are available to support ongoing design requirements and inventory planning.

Substiute Parts

TLV431BQLP

Texas InstrumentsIn Stock: 2151TLV431BQLP Datasheet

Current PartRFQ

TLV431BIDBZR

Texas InstrumentsIn Stock: 39225TLV431BIDBZR Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the TLV431BQLP is determined by electrical equivalence across the following critical parameters: reference type (shunt), output type (adjustable), minimum output voltage (1.24V), maximum output voltage (6V), output current capability (15mA), tolerance specification (±0.5%), and cathode current (100µA). The TLV431BIDBZR maintains identical electrical specifications while differing in packaging format (SOT-23-3 surface mount versus TO-92-3 through hole) and operating temperature range (-40°C to 85°C versus -40°C to 125°C). This substitution is valid for applications where the reduced upper operating temperature limit and surface-mount configuration are compatible with the design requirements.

Parameter Comparison

Engineering Selection Recommendations

The TLV431BIDBZR serves as the active production equivalent to the TLV431BQLP. Both devices maintain identical electrical performance specifications and share ROHS3 compliance status. Selection between these parts depends on application-specific requirements: the TLV431BQLP is suitable for through-hole assembly applications requiring operation up to 125°C, while the TLV431BIDBZR is appropriate for surface-mount designs with operating temperature requirements not exceeding 85°C. The TLV431BIDBZR's active product status and higher inventory availability (39,200 pieces versus 2,079 pieces) support long-term supply chain continuity for new designs.

Frequently Asked Questions (FAQ)

Q: Can TLV431BIDBZR replace TLV431BQLP in all applications?

A: Electrical substitution is valid when the application's maximum operating temperature does not exceed 85°C and the circuit board design accommodates surface-mount (SOT-23-3) packaging. The TLV431BQLP is required for applications requiring through-hole mounting or operation above 85°C.

Q: What are the key differences between these parts?

A: The primary differences are packaging format (through-hole TO-92-3 versus surface-mount SOT-23-3) and maximum operating temperature (125°C versus 85°C). All electrical specifications including voltage output, current capability, and tolerance are identical.

Q: Are both parts RoHS compliant?

A: Yes, both TLV431BQLP and TLV431BIDBZR are ROHS3 compliant and REACH unaffected.

Q: Why is TLV431BQLP classified as Last Time Buy?

A: The TLV431BQLP represents an older through-hole packaging format. The TLV431BIDBZR in surface-mount SOT-23-3 packaging is the active production equivalent and recommended for new designs.

Q: Can I use TLV431BQLP in a surface-mount design?

A: No. The TLV431BQLP is a through-hole component (TO-92-3 package) and cannot be directly used in surface-mount applications. The TLV431BIDBZR must be used for surface-mount designs.