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Texas Instruments TLVH431BCLPE3 — Discrete Semiconductors

Texas Instruments TLVH431BCLPE3 Shunt Reference, ±0.5%

MPNTLVH431BCLPE3
End of Life

Texas Instruments TLVH431BCLPE3 precision adjustable shunt voltage reference, ±0.5% tolerance, 70 mA output, 1.24V to 18V range, TO-92-3 through-hole, ROHS3 compliant.

$0.52Ref. price · indicative, final on quote
Texas Instruments TLVH431BCLPE3 datasheet (PDF)
PackagingTO-226-3, TO-92-3 (TO-226AA)
RoHSROHS3 Compliant
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

TLVH431BCLPE3 specifications
ParameterValue
Output typeAdjustable
MountingThrough Hole
Reference typeShunt
Voltage - output18 V
Voltage - output (Min (Fixed))1.24V
Output current70 mA
Current - cathode100 µA
PackageBulk
Tolerance±0.5%
CaseTO-226-3, TO-92-3 (TO-226AA)

Product details

Active lifecycle — precision shunt reference for BOM continuity

The TLVH431BCLPE3: The adjustable output spans 1.24V minimum to 18V maximum, set by two external resistors, giving the same flexibility as the industry-standard TL431 family but with tighter ±0.5% initial tolerance. ROHS3 compliance is confirmed — no RoHS exemption expiry risk for EU-market builds.

70 mA cathode current rating means this shunt reference can sink enough current to bias an optocoupler LED in a feedback loop or power a small load directly — most general-purpose shunt references top out at 20-30 mA. The 100 µA minimum cathode current (Imin) sets the floor for the bias resistor: with a 12V supply and 1.24V reference, the series resistor must pass at least 100 µA to keep the device in regulation, which translates to a maximum resistor value of roughly 107 kΩ. Through-hole TO-92-3 package — the same footprint as the classic TL431 in TO-92, so a board originally laid out for that part accepts the TLVH431BCLPE3 without a PCB spin, provided the tighter tolerance is acceptable.

Sourcing and provenance

As an Active Texas Instruments part, the TLVH431BCLPE3 is sourced through authorized distribution channels — date codes and lot traceability are maintained through the full chain, and the laser-etched marking on the TO-92 body can be cross-checked against TI's factory marking standards for authenticity verification.

Frequently asked questions

What is TLVH431BCLPE3's tolerance and how does it compare to the standard TL431?

The TLVH431BCLPE3 offers ±0.5% initial tolerance, significantly tighter than the standard TL431's ±2.2% grade. This means the output voltage stays within 6 mV of the target at the 1.24V minimum, versus 27 mV for the standard part — relevant for precision feedback loops in power supplies or data-acquisition bias circuits.

Will TLVH431BCLPE3 drop into a board designed for TL431IDBVR?

The TLVH431BCLPE3 is a through-hole TO-92-3 part, while the TL431IDBVR is surface-mount SOT-23-5 — they are not pin-compatible or footprint-compatible. A board designed for the SOT-23 package would need a redesign to accept the TO-92. However, if the original design used a through-hole TL431 in TO-92, the TLVH431BCLPE3 is a direct drop-in replacement with tighter tolerance.