TLV431ACLPE3 Equivalent & Substitute Parts

Part Overview

The TLV431ACLPE3 is a shunt voltage reference IC with adjustable output, designed for precision voltage regulation applications. This component features a 1.24V to 6V adjustable output range with ±1% tolerance and 15 mA output current capability in a TO-92-3 through-hole package. The product is currently obsolete, making identification of functionally equivalent alternatives essential for ongoing system support and new design implementations.

Substiute Parts

TLV431ACLPE3

Texas InstrumentsIn Stock: 4651TLV431ACLPE3 Datasheet

Current PartRFQ

TLV431AIDBZR

Texas InstrumentsIn Stock: 68481TLV431AIDBZR Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the TLV431ACLPE3 is determined by electrical parameter equivalence across the TLV431 base product family. The primary substitute, TLV431AIDBZR, maintains identical electrical specifications: adjustable shunt reference output from 1.24V to 6V, ±1% tolerance, 15 mA output current, and 80 µA cathode current. The key distinction lies in packaging and operating temperature range. The TLV431AIDBZR uses surface-mount SOT-23-3 packaging versus the through-hole TO-92-3 of the original part, and extends the operating temperature range to -40°C ~ 85°C. These differences do not affect electrical substitution capability when circuit board layout and thermal requirements permit surface-mount implementation.

Parameter Comparison

Engineering Selection Recommendations

The TLV431AIDBZR is the active product replacement for the obsolete TLV431ACLPE3. Both components maintain identical electrical performance specifications and regulatory compliance status (ROHS3 Compliant, REACH Unaffected). Selection between these parts depends on circuit implementation requirements: the TLV431ACLPE3 is suitable only for through-hole PCB designs with operating conditions within 0°C to 70°C, while the TLV431AIDBZR accommodates surface-mount assembly and extended temperature operation from -40°C to 85°C. For new designs or system upgrades, the TLV431AIDBZR is the recommended choice due to active product status and broader operational temperature range.

Frequently Asked Questions (FAQ)

Q: Can TLV431AIDBZR directly replace TLV431ACLPE3 in existing circuits?

A: Electrical substitution is valid. The TLV431AIDBZR provides identical voltage reference output, tolerance, and current specifications. Physical substitution requires either PCB redesign to accommodate SOT-23-3 surface-mount footprint or use of adapter components for through-hole mounting.

Q: What is the primary difference between these parts?

A: The main differences are packaging format (through-hole TO-92-3 versus surface-mount SOT-23-3) and operating temperature range (0°C ~ 70°C versus -40°C ~ 85°C). Electrical performance is equivalent.

Q: Why is the TLV431ACLPE3 listed as obsolete?

A: The TLV431ACLPE3 has been discontinued by Texas Instruments. The TLV431AIDBZR represents the active product line continuation with improved temperature specifications and modern surface-mount packaging.

Q: Are there compliance differences between these parts?

A: Both parts maintain identical RoHS3 compliance and REACH unaffected status. No compliance barriers exist for substitution.

Q: What inventory considerations apply?

A: The TLV431ACLPE3 has limited remaining stock (4,545 pcs). The TLV431AIDBZR has significantly higher availability (68,400 pcs), supporting both immediate and long-term supply requirements.