LM4120IM5-4.1 Equivalent & Substitute Parts

Part Overview

The LM4120IM5-4.1 is a Series Voltage Reference IC from Texas Instruments, delivering a fixed 4.096V output with ±0.5% tolerance in a SOT-23-5 surface mount package. This component is classified as obsolete, making identification of equivalent and substitute parts essential for ongoing design support and production continuity. The part operates across a wide input voltage range of 2V to 12V with a maximum output current of 5 mA, suitable for precision analog applications requiring stable reference voltages.

Substiute Parts

LM4120IM5-4.1

Texas InstrumentsIn Stock: 2334LM4120IM5-4.1 Datasheet

Current PartRFQ

LM4120IM5-4.1/NOPB

Texas InstrumentsIn Stock: 1715LM4120IM5-4.1/NOPB Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the LM4120IM5-4.1 is determined by strict equivalence across the following critical parameters:

• Fixed output voltage of 4.096V
• Output current capability of 5 mA
• Voltage tolerance of ±0.5%
• Temperature coefficient of 50 ppm/°C
• Input voltage range of 2V to 12V
• SOT-23-5 package compatibility
• Noise specifications (0.1Hz to 10Hz: 20 µVp-p; 10Hz to 10kHz: 36 µVp-p)

The LM4120IM5-4.1/NOPB is identified as a parametric equivalent, maintaining identical electrical specifications and package form factor while differing in packaging configuration and product status.

Parameter Comparison

Engineering Selection Recommendations

The LM4120IM5-4.1/NOPB serves as the direct parametric equivalent for the obsolete LM4120IM5-4.1. Both parts maintain identical electrical performance across all specified parameters. The primary distinction lies in product lifecycle status and regulatory compliance:

The original LM4120IM5-4.1 is classified as obsolete, indicating end-of-life status with no further manufacturing or support. The LM4120IM5-4.1/NOPB carries Last Time Buy status, representing the final production window before complete discontinuation. This part additionally achieves ROHS3 compliance, meeting current environmental and regulatory requirements, whereas the original part is RoHS non-compliant.

For new designs or production continuity, the LM4120IM5-4.1/NOPB is the appropriate selection. Both parts are supplied in SOT-23-5 packaging suitable for surface mount assembly, with identical pinout and electrical characteristics ensuring direct functional replacement.

Frequently Asked Questions (FAQ)

Q: Can the LM4120IM5-4.1/NOPB directly replace the LM4120IM5-4.1?

A: Yes. Both parts are electrically identical across all specified parameters, including output voltage, tolerance, temperature coefficient, noise characteristics, and operating ranges. The SOT-23-5 package pinout is identical, enabling direct substitution at the board level.

Q: What is the difference between the two part numbers?

A: The primary differences are packaging configuration and product status. The LM4120IM5-4.1 is supplied in bulk packaging and is obsolete. The LM4120IM5-4.1/NOPB is supplied in Tape & Reel configuration, carries Last Time Buy status, and meets ROHS3 compliance standards.

Q: Why is the original part marked as obsolete?

A: Obsolete status indicates the manufacturer has discontinued production and support. The LM4120IM5-4.1/NOPB represents the final production variant and should be prioritized for new designs or inventory replenishment.

Q: Are there any compatibility concerns when switching between these parts?

A: No compatibility concerns exist. Electrical specifications, package type, and pinout are identical. Both parts operate across the same input voltage range (2V to 12V) and temperature range (-40°C to 85°C).

Q: What is the significance of ROHS3 compliance on the substitute part?

A: ROHS3 compliance indicates the part meets current environmental regulations restricting hazardous substances. This is relevant for applications subject to regulatory requirements or customer specifications mandating RoHS compliance.