TLV431AILPE3 Equivalent & Substitute Parts

Part Overview

The TLV431AILPE3 is a shunt voltage reference IC with adjustable output, designed for precision voltage regulation applications. This component provides a fixed 1.24V reference with adjustable output up to 6V, delivering 15mA output current in a through-hole TO-92-3 package. The part is classified as obsolete, making identification of active equivalent components essential for new designs and production continuity.

Substiute Parts

TLV431AILPE3

Texas InstrumentsIn Stock: 2700TLV431AILPE3 Datasheet

Current PartRFQ

TLV431AIDBZR

Texas InstrumentsIn Stock: 68481TLV431AIDBZR Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the TLV431AILPE3 is determined by electrical parameter equivalence across the TLV431 base product family. The primary substitute, TLV431AIDBZR, maintains identical electrical specifications: shunt reference type, adjustable output topology, 1.24V to 6V output range, 15mA output current, ±1% tolerance, 80µA cathode current, and -40°C to 85°C operating temperature range.

The key differentiator between these parts is packaging and mounting technology. The TLV431AILPE3 uses through-hole TO-92-3 packaging, while the TLV431AIDBZR uses surface-mount SOT-23-3 packaging. Both parts share the same base product number (TLV431) and maintain full electrical compatibility within their specified parameters.

Substitution is valid when:

• Reference type remains shunt
• Output type remains adjustable
• Voltage output range (1.24V to 6V) is maintained
• Current specifications (15mA output, 80µA cathode) are preserved
• Tolerance (±1%) is maintained
• Operating temperature range (-40°C to 85°C) is acceptable for the application

Parameter Comparison

Engineering Selection Recommendations

The TLV431AIDBZR is the active equivalent for the obsolete TLV431AILPE3. Both parts maintain identical electrical specifications and are ROHS3 compliant. Selection between these parts depends on board design requirements:

For through-hole PCB designs, the TLV431AILPE3 remains available in inventory (2659 pcs) but carries obsolete status. For new designs or production transitions, the TLV431AIDBZR is recommended due to active product status and significantly higher inventory availability (68400 pcs). The TLV431AIDBZR requires surface-mount assembly capability and PCB layout modifications to accommodate SOT-23-3 packaging instead of TO-92-3.

Both parts carry identical compliance certifications (ROHS3, REACH Unaffected, EAR99 ECCN classification) and are suitable for applications requiring precision adjustable voltage reference functionality across the specified operating temperature range.

Frequently Asked Questions (FAQ)

Q: Can TLV431AIDBZR directly replace TLV431AILPE3 in existing through-hole designs?

A: Electrical substitution is valid; however, physical replacement requires PCB redesign. The TLV431AIDBZR uses SOT-23-3 surface-mount packaging while the TLV431AILPE3 uses TO-92-3 through-hole packaging. Board layout and assembly process modifications are necessary.

Q: Are the electrical specifications identical between these parts?

A: Yes. Both parts share identical specifications for reference type (shunt), output type (adjustable), voltage range (1.24V to 6V), output current (15mA), tolerance (±1%), cathode current (80µA), and operating temperature range (-40°C to 85°C).

Q: Why is the TLV431AILPE3 marked as obsolete?

A: Product status reflects Texas Instruments' lifecycle management. The TLV431AIDBZR represents the active continuation of this product line with equivalent electrical performance in modern surface-mount packaging.

Q: What are the compliance differences between these parts?

A: Both parts are ROHS3 compliant and REACH unaffected. The TLV431AIDBZR carries MSL rating 1 (Unlimited) while the TLV431AILPE3 lists MSL as Not Applicable. Both share identical ECCN (EAR99) and HTSUS (8542.39.0001) classifications.

Q: Can I use either part interchangeably in new designs?

A: Electrically, yes. Practically, new designs should specify the TLV431AIDBZR due to active product status and superior inventory availability. The TLV431AILPE3 should be reserved for legacy system maintenance only.