TLVH431BILPR Equivalent & Substitute Parts

Part Overview

The TLVH431BILPR is a shunt voltage reference IC manufactured by Texas Instruments, designed for precision voltage regulation applications. This adjustable reference device operates with a minimum output voltage of 1.24V and maximum output voltage of 18V, delivering up to 70mA output current with ±0.5% tolerance. The device is packaged in TO-92-3 (through-hole) configuration and is currently classified as Last Time Buy, indicating end-of-life status. Finding equivalent substitute parts is necessary to ensure continued design support and maintain supply chain continuity for new production runs and long-term applications.

Substiute Parts

TLVH431BILPR

Texas InstrumentsIn Stock: 5751TLVH431BILPR Datasheet

Current PartRFQ

TLVH431BIDBZR

Texas InstrumentsIn Stock: 35375TLVH431BIDBZR Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the TLVH431BILPR is determined by electrical parameter equivalence across the following criteria:

Electrical Equivalence Requirements:

• Reference Type: Shunt (identical functional classification)
• Output Type: Adjustable (same voltage adjustment capability)
• Voltage - Output (Min/Fixed): 1.24V (identical minimum output)
• Voltage - Output (Max): 18V (identical maximum output)
• Current - Output: 70mA (identical output current rating)
• Tolerance: ±0.5% (identical accuracy specification)
• Current - Cathode: 100µA (identical cathode current)
• Operating Temperature: -40°C ~ 85°C (identical thermal range)

Mechanical Compatibility: The TLVH431BILPR uses TO-92-3 through-hole packaging. Substitutes may employ alternative packaging technologies (such as surface-mount SOT-23-3) provided all electrical parameters remain identical. Package selection depends on circuit board design and assembly capabilities.

Compliance Requirements: All substitute parts must maintain ROHS3 compliance and REACH Unaffected status to meet regulatory requirements.

Parameter Comparison

Engineering Selection Recommendations

The TLVH431BIDBZR is the manufacturer-recommended substitute for the TLVH431BILPR. Both devices share identical electrical specifications and are manufactured by Texas Instruments under the same base product number (TLVH431).

Primary Advantage: The TLVH431BIDBZR maintains Active product status, ensuring long-term availability and continued manufacturer support, whereas the TLVH431BILPR is designated Last Time Buy. This transition is critical for designs requiring sustained production or future product revisions.

Packaging Consideration: The substitute employs SOT-23-3 surface-mount packaging instead of TO-92-3 through-hole packaging. This requires circuit board redesign if the original design uses through-hole assembly. Both packages are electrically equivalent and maintain identical performance specifications.

Compliance: Both parts maintain ROHS3 compliance and REACH Unaffected status, satisfying regulatory requirements for equivalent substitution.

Frequently Asked Questions (FAQ)

Q: Are the TLVH431BILPR and TLVH431BIDBZR electrically identical?

A: Yes. Both devices are shunt voltage reference ICs with identical electrical specifications: 1.24V minimum output, 18V maximum output, 70mA output current, ±0.5% tolerance, 100µA cathode current, and -40°C to 85°C operating temperature range.

Q: What is the primary difference between these parts?

A: The TLVH431BILPR uses TO-92-3 through-hole packaging for traditional PCB assembly, while the TLVH431BIDBZR uses SOT-23-3 surface-mount packaging for automated assembly. The TLVH431BIDBZR is also in Active product status, whereas the TLVH431BILPR is Last Time Buy.

Q: Can I use the TLVH431BIDBZR as a direct replacement in existing designs?

A: Electrical substitution is direct. However, mechanical substitution requires circuit board redesign due to different package types. Through-hole designs cannot accommodate surface-mount components without PCB layout modifications.

Q: Why is the TLVH431BILPR being discontinued?

A: The TLVH431BILPR is designated Last Time Buy, indicating Texas Instruments is transitioning production to the TLVH431BIDBZR. This is a standard product lifecycle management practice to consolidate manufacturing around surface-mount technology.

Q: Are both parts RoHS compliant?

A: Yes. Both the TLVH431BILPR and TLVH431BIDBZR are ROHS3 compliant and REACH Unaffected, meeting current regulatory requirements.

Q: What inventory status should I consider?

A: The TLVH431BIDBZR has significantly higher inventory availability (35,300 pcs) compared to the TLVH431BILPR (5,699 pcs), reflecting its Active status and ongoing production.