LM4132CMF-1.8 Equivalent & Substitute Parts

Part Overview

The LM4132CMF-1.8 is a series voltage reference IC manufactured by Texas Instruments, designed for precision fixed 1.8V output applications in power management circuits. This component delivers ±0.2% output tolerance with a maximum output current of 20 mA and operates across the industrial temperature range of -40°C to 125°C. The part is classified as obsolete, making identification of functionally equivalent alternatives essential for ongoing design support and production continuity.

Substiute Parts

LM4132CMF-1.8

Texas InstrumentsIn Stock: 2338LM4132CMF-1.8 Datasheet

Current PartRFQ

LM4132CMF-1.8/NOPB

Texas InstrumentsIn Stock: 2298LM4132CMF-1.8/NOPB Datasheet

DirectRFQ

LM4132CMFX-1.8/NOPB

Texas InstrumentsIn Stock: 632LM4132CMFX-1.8/NOPB Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the LM4132CMF-1.8 is determined by strict equivalence across the following critical parameters:

• Fixed output voltage of 1.8V
• Output tolerance of ±0.2%
• Maximum output current of 20 mA
• Temperature coefficient of 20 ppm/°C
• Input voltage range of 2.2V ~ 5.5V
• Supply current of 100 µA
• Operating temperature range of -40°C ~ 125°C
• SOT-23-5 package configuration
• Series reference type with fixed output

The identified substitute parts maintain identical electrical specifications and mechanical compatibility, differing only in product status and compliance certifications.

Parameter Comparison

Engineering Selection Recommendations

Both LM4132CMF-1.8/NOPB and LM4132CMFX-1.8/NOPB are direct functional equivalents to the obsolete LM4132CMF-1.8. Selection between these active alternatives should be based on the following factors:

LM4132CMF-1.8/NOPB is the primary direct substitute, maintaining the original part designation with NOPB (No Plumbum/Lead-Free) designation. This part carries ROHS3 compliance and is available in Tape & Reel packaging with 2227 units in current inventory.

LM4132CMFX-1.8/NOPB is a parametric equivalent variant with identical electrical performance. The "X" suffix indicates extended processing or qualification. This part also carries ROHS3 compliance and Tape & Reel packaging, with 609 units in current inventory.

Both substitute parts eliminate the RoHS non-compliance issue of the original obsolete component while maintaining complete electrical and mechanical compatibility. Selection may be influenced by packaging requirements, inventory availability, or specific procurement specifications.

Frequently Asked Questions (FAQ)

Q: Can LM4132CMF-1.8/NOPB be used as a direct replacement for LM4132CMF-1.8?

A: Yes. The LM4132CMF-1.8/NOPB is a direct substitute with identical electrical specifications, output voltage, tolerance, temperature coefficient, and SOT-23-5 package configuration. The primary differences are product status (Active vs. Obsolete) and RoHS compliance (ROHS3 vs. non-compliant).

Q: What is the difference between LM4132CMF-1.8/NOPB and LM4132CMFX-1.8/NOPB?

A: Both parts are parametric equivalents with identical electrical and mechanical specifications. The "X" suffix in LM4132CMFX-1.8/NOPB indicates a variant designation. Both are active products with ROHS3 compliance and SOT-23-5 packaging. Selection depends on availability and procurement requirements.

Q: Are the substitute parts compatible with existing PCB layouts designed for LM4132CMF-1.8?

A: Yes. Both substitute parts use the identical SOT-23-5 package configuration (SC-74A, SOT-753), ensuring pin-for-pin compatibility and direct PCB layout compatibility without design modifications.

Q: Does the NOPB designation affect electrical performance?

A: No. NOPB (No Plumbum/Lead-Free) is a packaging and material designation indicating RoHS compliance. Electrical performance, output voltage, tolerance, and all functional parameters remain identical to the original part.

Q: What is the significance of the product status change from Obsolete to Active?

A: Active product status ensures ongoing availability, manufacturing support, and compliance with current environmental regulations. The substitute parts provide long-term supply security and eliminate obsolescence risk associated with the original LM4132CMF-1.8.