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Texas Instruments LM385BLPE3-1-2 — Analog & Data Acquisition

LM385BLPE3-1-2 Shunt Voltage Reference, 1.235 V Fixed, ±1%

MPNLM385BLPE3-1-2
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Texas Instruments LM385 series shunt voltage reference, LM385BLPE3-1-2, fixed 1.235 V output, ±1% tolerance, 20 ppm/°C typical, TO-92-3 through-hole package, 0°C to 70°C.

$0.9600Ref. price · indicative, final on quote
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

LM385BLPE3-1-2 specifications
ParameterValue
Output typeFixed
MountingThrough Hole
Reference typeShunt
Voltage - output (Min (Fixed))1.235V
Output current20 mA
Current - cathode15 µA
Operating temperature0°C~70°C(TA)
PackageBulk
Tolerance±1%
CaseTO-226-3, TO-92-3 (TO-226AA)
Noise - 10Hz to 10kHz60µVrms
Temperature coefficient20ppm/°CTypical

Product details

Fixed 1.235 V shunt reference in a TO-92-3

It operates as a two-terminal shunt device, requiring only a series resistor from the supply to bias the 15 µA minimum cathode current.

Output current and noise floor

The shunt can sink up to 20 mA of output current while maintaining regulation. Noise from 10 Hz to 10 kHz is specified at 60 µVrms typical, low enough for most 8- to 12-bit ADC reference or comparator threshold applications. The 15 µA minimum cathode current allows the reference to operate from high-impedance bias networks without dropping out.

Through-hole TO-92-3 package

Housed in a TO-226-3 / TO-92-3 (TO-226AA) through-hole package with a supplier device package designation of TO-92-3. The three leads are spaced on 0.100-inch pitch, compatible with standard prototyping boards and socket strips.

Frequently asked questions

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