TL4050B50IDCKT Equivalent & Substitute Parts

Part Overview

The TL4050B50IDCKT is a shunt voltage reference IC from Texas Instruments, delivering a fixed 5V output with ±0.2% tolerance. This component is classified as a Power Management (PMIC) device and is packaged in SC-70-5 (5-TSSOP, SOT-353) surface mount configuration. The part is discontinued at DiGi Electronics, necessitating identification of equivalent alternatives that maintain electrical and mechanical compatibility for ongoing production and repair applications.

Substiute Parts

TL4050B50IDCKT

Texas InstrumentsIn Stock: 1229TL4050B50IDCKT Datasheet

Current PartRFQ

LM4040BIM7-5.0/NOPB

Texas InstrumentsIn Stock: 4531LM4040BIM7-5.0/NOPB Datasheet

DirectRFQ

LM4040DIM7-5.0/NOPB

Texas InstrumentsIn Stock: 3299LM4040DIM7-5.0/NOPB Datasheet

MFR RecommendedRFQ

TL4050B50IDCKR

Texas InstrumentsIn Stock: 1288TL4050B50IDCKR Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for shunt voltage reference ICs is determined by the following critical parameters: output voltage (5V fixed), output current capability (15 mA), package type (SC-70-5), operating temperature range (-40°C ~ 85°C), and compliance certifications (ROHS3, REACH Unaffected). Tolerance, temperature coefficient, and noise specifications define performance tier classifications and determine application suitability.

The substitute parts are grouped as follows:

Parametric Equivalent (TL4050B50IDCKR): Identical electrical specifications to the main part with matching tolerance (±0.2%), temperature coefficient (50ppm/°C), and noise performance (93µVrms). Differs only in packaging format (Tape & Reel vs. tube) and product status (Active vs. Discontinued).

Direct Manufacturer Equivalent (LM4040BIM7-5.0/NOPB): Maintains core electrical parameters (5V output, 15 mA, ±0.2% tolerance, SC-70-5 package). Differs in temperature coefficient (100ppm/°C vs. 50ppm/°C) and noise specification (80µVrms vs. 93µVrms), representing a performance variant within acceptable substitution criteria.

MFR Recommended Alternative (LM4040DIM7-5.0/NOPB): Shares package, output voltage, and current specifications. Tolerance is relaxed to ±1%, temperature coefficient is higher (150ppm/°C), and cathode current is slightly elevated (85 µA vs. 80 µA). This part is suitable for applications where ±1% tolerance is acceptable.

Parameter Comparison

Engineering Selection Recommendations

TL4050B50IDCKR is the primary substitute for the discontinued TL4050B50IDCKT. Both parts are manufactured by Texas Instruments with identical electrical specifications, operating temperature range, and compliance certifications. The only distinction is packaging format (Tape & Reel vs. tube) and active product status. This part is suitable for direct replacement in all applications.

LM4040BIM7-5.0/NOPB is a direct manufacturer equivalent offering improved noise performance (80µVrms vs. 93µVrms) while maintaining ±0.2% tolerance and SC-70-5 packaging. The higher temperature coefficient (100ppm/°C vs. 50ppm/°C) may impact long-term stability in temperature-sensitive applications. This part is suitable for applications where noise reduction is beneficial and temperature coefficient variance is acceptable.

LM4040DIM7-5.0/NOPB is the manufacturer-recommended alternative for applications where ±1% tolerance is acceptable. The relaxed tolerance specification, combined with higher temperature coefficient (150ppm/°C) and marginally elevated cathode current (85 µA), positions this part for cost-optimized designs. All parts maintain ROHS3 compliance and MSL-1 moisture sensitivity rating, ensuring compatibility with standard manufacturing and storage protocols.

Frequently Asked Questions (FAQ)

Q: Can TL4050B50IDCKR replace TL4050B50IDCKT in production?

A: Yes. Both parts are identical in electrical specifications, operating temperature range, and compliance certifications. The difference is packaging format (Tape & Reel vs. tube). TL4050B50IDCKR is active and available for procurement.

Q: What is the key difference between LM4040BIM7-5.0/NOPB and the main part?

A: LM4040BIM7-5.0/NOPB maintains ±0.2% tolerance and SC-70-5 packaging but has a higher temperature coefficient (100ppm/°C vs. 50ppm/°C) and lower noise (80µVrms vs. 93µVrms). Applications requiring stable performance across temperature extremes should account for this variance.

Q: Is LM4040DIM7-5.0/NOPB suitable for precision reference applications?

A: LM4040DIM7-5.0/NOPB has ±1% tolerance compared to ±0.2% for the main part. It is suitable for applications where ±1% accuracy is acceptable. The higher temperature coefficient (150ppm/°C) requires evaluation for temperature-dependent drift requirements.

Q: Are all substitute parts in the same package?

A: Yes. All parts use 5-TSSOP, SC-70-5, SOT-353 packaging, ensuring mechanical and electrical compatibility on PCBs designed for the TL4050B50IDCKT.

Q: Do all substitute parts meet RoHS and REACH compliance?

A: Yes. All listed parts are ROHS3 compliant and REACH unaffected, maintaining regulatory compliance for EU and global markets.

Q: What is the operating temperature range for all parts?

A: All parts operate across -40°C to 85°C (TA), ensuring compatibility in industrial and commercial temperature environments.