Analog Devices Inc. LT1004CZ-1.2#PBF

Mfr. Part

LT1004CZ-1.2#PBF

Manufacturer

ADI (Analog Devices, Inc.)

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Detailed Description

Precision 1.235 V shunt voltage reference in a TO-92-3 through-hole package. High accuracy ±0.3% initial tolerance, low temperature coefficient (20 ppm/°C typical), and low noise for stable, repeatable references in power and measurement systems. C-grade operating range 0°C to 70°C. RoHS3 compliant. Base product family LT1004. Packaged in bags. Available quantity: 2501 units.

Key Features

Reference type: Shunt

Output voltage (fixed): 1.235 V nominal

Initial accuracy: ±0.3%

Temperature coefficient: 20 ppm/°C typical

Output current capability: up to 20 mA

Low noise over 10 Hz to 10 kHz bandwidth (≈60 µVrms typical; check datasheet)

Through-hole mounting, TO-92-3 package

Operates over 0°C to 70°C (TA)

RoHS3 compliant

Simple two-terminal operation (anode and cathode)

Key Advantages

Tight tolerance reduces calibration effort and improves system accuracy

Low tempco keeps the reference stable across ambient changes

Shunt topology is easy to use: works like a precision Zener with better performance

Low cost and widely supported; ideal for legacy and new designs

Robust TO-92 through-hole package for easy prototyping and field repairs

Stable over time; consistent performance in production

Packaging

Type: TO-92-3 (also referenced as TO-226-3 / TO-226AA)

Material: Molded epoxy plastic body with lead-free (RoHS3) plated leads

Size: Standard TO-92 profile; compact for dense through-hole layouts (see datasheet for exact dimensions)

Pin configuration (typical):

- Pin 1 Anode

- Pin 2 Cathode

- Pin 3 No Connect (NC)

- Verify orientation with the datasheet mechanical drawing

Thermal characteristics:

- Typical θJA ≈ 200°C/W in still air (package-dependent; confirm in datasheet)

- Operating ambient: 0°C to 70°C (C-grade)

Electrical properties (summary):

- VREF: 1.235 V nominal, ±0.3% initial tolerance

- Tempco: 20 ppm/°C typical

- Output (shunt) current: up to 20 mA (limit by power dissipation)

- Noise (10 Hz to 10 kHz): ≈60 µVrms typical

- Low dynamic impedance for good load regulation

Lifecycle

Status: Active and in production (not near discontinuation based on current market data)

Equivalent or alternative models (verify electrical specs, accuracy grade, pinout, and package before substitution):

- Analog Devices LT1634-1.25 (precision shunt reference, SOT-23; 1.25 V)

- Analog Devices ADR5041 (1.250 V micropower shunt reference; SOT-23)

- Texas Instruments TLV431/TLV432 (adjustable shunt references; ~1.24 V nominal)

- Texas Instruments LM4041-1.2 (micropower shunt reference; 1.225 V fixed; multiple grades)

- onsemi LM385-1.2 / LM185-1.2 / LM285-1.2 (1.2 V shunt references; various packages and grades)

- Vishay LMV431 (low-voltage adjustable shunt reference; ~1.24 V)

- Note: Packages, temp ranges, and pinouts differ. For exact drop-in replacements in TO-92-3, contact us.

If you need a direct, pin-compatible alternative or high-volume lifecycle assurance, please contact our sales team via the Y-IC website for the latest cross recommendations and supply options.

Key Application Areas

Precision 1.235 V reference for ADCs, DACs, and comparators

Stable threshold generation and biasing in analog front-ends

Replacement for low-voltage Zener diodes with better accuracy and noise

Instrumentation, test equipment, and sensor excitation

Battery-powered devices needing low current, stable references

Power supplies: reference rails, monitors, and shunt regulation

Industrial control and calibration fixtures

Datasheet

Our website hosts the most authoritative datasheet for LT1004CZ-1.2#PBF. For guaranteed up-to-date specifications, mechanical drawings, pinouts, and application notes, download the datasheet directly from this page now.

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