LM2941T Linear Voltage Regulator Equivalent & Substitute Parts

Part Overview

The LM2941T is a linear voltage regulator IC from Texas Instruments designed for positive adjustable output applications. It delivers 1A output current with input voltage capability up to 26V and adjustable output voltage ranging from 5V to 20V. The device features integrated protection against over-temperature, reverse polarity, and short circuit conditions, making it suitable for power management applications requiring regulated positive voltage outputs.

The LM2941T is currently in Last Time Buy status, indicating limited availability. Identifying equivalent and substitute parts ensures design continuity and supply chain reliability for ongoing production and maintenance requirements.

Substiute Parts

LM2941T

Texas InstrumentsIn Stock: 1161LM2941T Datasheet

Current PartRFQ

LM2941T/NOPB

Texas InstrumentsIn Stock: 2388LM2941T/NOPB Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the LM2941T is determined by strict equivalence across the following critical parameters:

• Output configuration (Positive)
• Output type (Adjustable)
• Voltage specifications (Input Max: 26V, Output range: 5V-20V)
• Current rating (1A output)
• Voltage dropout performance (1V @ 1A)
• Package type (TO-220-5)
• Protection features (Over Temperature, Reverse Polarity, Short Circuit)
• Operating temperature range (-40°C ~ 125°C)
• Regulatory compliance (ROHS3, REACH Unaffected)

The LM2941T/NOPB qualifies as a direct substitute based on identical electrical specifications and package configuration. The primary distinction is product status and packaging format (Tube vs. standard packaging).

Parameter Comparison

Engineering Selection Recommendations

The LM2941T/NOPB is a direct functional equivalent to the LM2941T. Both devices share identical electrical specifications, thermal performance, and protection characteristics. The LM2941T/NOPB maintains Active product status with higher inventory availability (2300 Pcs vs. 1120 Pcs), providing supply chain continuity.

Both parts maintain ROHS3 compliance and REACH Unaffected status, satisfying regulatory requirements for industrial and commercial applications. The packaging difference (Tube format for LM2941T/NOPB) does not affect electrical performance or PCB mounting compatibility in TO-220-5 configuration.

Selection between these parts should prioritize the LM2941T/NOPB due to its Active status and superior inventory position, particularly for new designs or long-term production requirements.

Frequently Asked Questions (FAQ)

Q: Can LM2941T/NOPB be used as a direct replacement for LM2941T?

A: Yes. Both parts are electrically identical with matching voltage specifications (26V input max, 5V-20V adjustable output), current ratings (1A), dropout voltage (1V @ 1A), and protection features. The only difference is product status and packaging format.

Q: What does the "/NOPB" suffix indicate?

A: The "/NOPB" designation indicates the part is supplied in Tube packaging format rather than standard packaging. This affects handling and storage but does not alter electrical performance or PCB compatibility.

Q: Are there any thermal or performance differences between these parts?

A: No. Both devices operate across the same temperature range (-40°C ~ 125°C) with identical quiescent current (10 mA) and supply current specifications (15 mA max).

Q: Why is LM2941T marked as Last Time Buy?

A: Last Time Buy status indicates Texas Instruments is discontinuing this product line. The LM2941T/NOPB, with Active status, represents the current production equivalent and should be specified for new designs.

Q: Are both parts RoHS and REACH compliant?

A: Yes. Both LM2941T and LM2941T/NOPB are ROHS3 Compliant and REACH Unaffected, meeting environmental and regulatory standards for industrial applications.

Q: What is the Moisture Sensitivity Level (MSL) for these parts?

A: Both parts have MSL 1 (Unlimited), indicating no moisture sensitivity restrictions during storage or handling.