TL4050C41IDCKT Equivalent & Substitute Parts

Part Overview

The TL4050C41IDCKT is a shunt voltage reference IC manufactured by Texas Instruments, designed for precision power management applications. This component generates a fixed 4.096V output with ±0.5% tolerance and operates across the industrial temperature range of -40°C to 85°C. The part is classified as obsolete, making equivalent substitute parts necessary for ongoing design support and procurement continuity.

Substiute Parts

TL4050C41IDCKT

Texas InstrumentsIn Stock: 814TL4050C41IDCKT Datasheet

Current PartRFQ

TL4050C41IDBZR

Texas InstrumentsIn Stock: 3252TL4050C41IDBZR Datasheet

MFR RecommendedRFQ

TL4050C41IDCKR

Texas InstrumentsIn Stock: 667TL4050C41IDCKR Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the TL4050C41IDCKT is determined by electrical parameter equivalence and mechanical compatibility. The following criteria define valid substitutes:

Electrical Parameters (Must Match):

• Fixed output voltage: 4.096V
• Output current capability: 15 mA
• Voltage tolerance: ±0.5%
• Temperature coefficient: 50 ppm/°C
• Noise specification: 93 µVrms (10Hz to 10kHz)
• Cathode current: 73 µA
• Operating temperature range: -40°C to 85°C

Mechanical Parameters (Package Compatibility):

• Surface mount technology
• Package form factor compatibility

Two substitute parts meet these criteria:

1. TL4050C41IDCKR – Parametric equivalent with identical package (SC-70-5), active product status
2. TL4050C41IDBZR – Manufacturer-recommended substitute with alternative package (SOT-23-3), active product status

Parameter Comparison

Engineering Selection Recommendations

TL4050C41IDCKR is the primary substitute for direct replacement. This part maintains identical electrical specifications and package form factor (SC-70-5) as the obsolete TL4050C41IDCKT. Active product status ensures long-term availability and supply chain continuity. No PCB layout modifications are required for this substitution.

TL4050C41IDBZR is the manufacturer-recommended alternative when package form factor flexibility exists in the design. This part delivers identical electrical performance but uses the SOT-23-3 package instead of SC-70-5. PCB layout modifications are necessary to accommodate the different package footprint. Active product status and manufacturer recommendation support this substitution path.

Both substitutes maintain full compliance with ROHS3 and REACH requirements, with unlimited moisture sensitivity level (MSL 1) ratings suitable for standard storage and handling conditions.

Frequently Asked Questions (FAQ)

Q: Can TL4050C41IDCKR be used as a direct replacement for TL4050C41IDCKT?

A: Yes. TL4050C41IDCKR is electrically and mechanically equivalent to the obsolete TL4050C41IDCKT. Both use the SC-70-5 package, and all electrical parameters including output voltage, tolerance, temperature coefficient, and noise specifications are identical. No design changes are required.

Q: What is the difference between TL4050C41IDCKR and TL4050C41IDBZR?

A: The primary difference is package form factor. TL4050C41IDCKR uses SC-70-5 (5-pin TSSOP), while TL4050C41IDBZR uses SOT-23-3 (3-pin). All electrical specifications are identical. Selection depends on PCB layout constraints and available footprint space.

Q: Why is TL4050C41IDCKT marked as obsolete?

A: Product obsolescence is determined by the manufacturer. Active alternatives (TL4050C41IDCKR and TL4050C41IDBZR) provide equivalent functionality and are recommended for new designs and ongoing procurement.

Q: Are there any compliance differences between the main part and substitutes?

A: No. All three parts maintain identical RoHS3 compliance, REACH status, and MSL ratings. Regulatory and environmental compliance requirements are fully satisfied by either substitute.

Q: What packaging options are available for this voltage reference?

A: Two packaging options are available: SC-70-5 (TL4050C41IDCKR) and SOT-23-3 (TL4050C41IDBZR). Both are surface mount packages suitable for automated assembly. Package selection should be based on PCB layout requirements and available board space.

Q: Can I use TL4050C41IDBZR if my design was originally laid out for SC-70-5?

A: No, without PCB modifications. The SOT-23-3 package has a different footprint and pin configuration than SC-70-5. PCB layout redesign is required to accommodate the alternative package.