Texas Instruments LM4041AIM3-1.2/NOPB

Mfr. Part

LM4041AIM3-1.2/NOPB

Manufacturer

Luminary Micro/Texas Instruments. Y-IC is a quality distributor of Texas Instruments products. We provide genuine parts, fast service, and expert support to help you choose and use this device with confidence.

Detailed Description

Precision micropower shunt voltage reference, fixed 1.225 V output, 0.1% initial accuracy, SOT-23-3 package, RoHS3 compliant (lead-free, “/NOPB” finish). Designed for simple two-terminal reference regulation with an external series resistor. Operating temperature range -40°C to +85°C (TA). Surface-mount, supplied in tape and reel for automated assembly.

Key Features

Reference type: Shunt (two-terminal operation with series resistor)

Fixed output voltage: 1.225 V

Initial accuracy: ±0.1%

Temperature coefficient: 100 ppm/°C

Output capability: up to 12 mA (per provided spec)

Low power operation, micropower design

Small footprint: SOT-23-3 / TO-236-3 / SC-59

ROHS3 compliant, lead-free “NOPB” finish

Noise (10 Hz to 10 kHz): 20 Vrms (as provided; please verify in datasheet)

Operating temperature: -40°C to +85°C

Mounting type: Surface Mount (SMD)

Base product number family: LM4041

Quantity available: 9195 units (subject to change)

Key Advantages

Simple, cost-effective reference solution with minimal external components

Two-terminal shunt architecture is easy to drop into existing designs

High precision (0.1%) reduces calibration effort and improves system accuracy

Micropower operation helps extend battery life in portable devices

Small SOT-23-3 package saves board space and supports dense layouts

Broad use across analog front-ends, monitors, and control loops

TI quality and wide ecosystem support

Packaging

Type: Tape & Reel (TR) for high-volume pick-and-place

Package / Case: SOT-23-3 (also referred to as TO-236-3 or SC-59)

Supplier Device Package: SOT-23-3

Material: Molded epoxy body with copper leadframe; matte-tin lead finish (NOPB lead-free)

Approximate size: about 3.0 mm x 1.75 mm x 1.3 mm (typical for SOT-23; confirm in datasheet)

Pin configuration (typical for fixed shunt reference in SOT-23-3): Cathode, Anode, and a third pin that may be reference or no-connect depending on variant; check exact pinout in datasheet

Thermal characteristics: SOT-23 packages have relatively high thermal resistance; use adequate copper area for heat spreading; confirm θJA/θJC in datasheet for your PCB stack-up

Electrical properties (per provided parameters): 1.225 V fixed output, ±0.1% tolerance, 100 ppm/°C tempco, up to 12 mA output capability; “Current Cathode: 65 A” appears non-typical for SOT-23 shunt references—please verify with the datasheet

Compliance: RoHS3 compliant, lead-free, halogen-free typical

Lifecycle

Status: Active and widely supported by Texas Instruments; not near discontinuation based on current industry status

Direct family options: Other LM4041 variants may offer different accuracy grades, output voltages (adjustable versions), and packages; verify exact suffixes and specifications on our site

Equivalent or alternative models (verify pinout, accuracy, tempco, and voltage before substituting):

- Analog Devices ADR130 (1.225 V shunt reference, micropower)

- Diodes Incorporated ZXRE125 (≈1.25 V shunt reference)

- TI TLV431 / TLVH431 (adjustable shunt references, ~1.24 V reference; can be configured near 1.225 V)

- ON Semiconductor TLV431/NLV431 series (adjustable shunt, ~1.24 V)

If you need an exact functional and pin-compatible replacement, or if none of the above meets your requirements, please contact our sales team via the Y-IC website. We will help you validate drop-in compatibility and performance for your design.

Key Application Areas

Precision reference for ADCs, DACs, and comparators

Battery-powered and portable electronics (micropower reference)

Sensor interfaces and instrumentation front-ends

Power monitors, supervisors, and threshold detection

Current sources and shunt regulation loops

Calibration references for low-voltage analog circuits

Embedded systems needing a stable low-voltage reference

Datasheet

Our website hosts the most authoritative datasheet for LM4041AIM3-1.2/NOPB. For accurate pinout, electrical limits, thermal data, and application examples, download the datasheet directly on this page. We strongly recommend verifying any unusual parameters (e.g., noise and cathode current) against the datasheet.

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