LM431CCMX Equivalent & Substitute Parts Reference

Part Overview

The LM431CCMX from Texas Instruments is a shunt voltage reference IC in the Power Management (PMIC) category. It provides an adjustable output voltage between 2.5V and 37V with a precision tolerance of -0.6%/+0.4% and an output current capability of 100 mA. The IC features surface mount packaging in an 8-SOIC form factor. The LM431CCMX is marked as obsolete, necessitating the identification of equivalent or substitute parts to maintain supply continuity and design compatibility in existing systems.

Substiute Parts

LM431CCMX

Texas InstrumentsIn Stock: 4651LM431CCMX Datasheet

Current PartRFQ

TL431BCD

onsemiIn Stock: 1918TL431BCD Datasheet

DirectRFQ

TL431BCDR

Texas InstrumentsIn Stock: 2485TL431BCDR Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for LM431CCMX are identified based on strict equivalence in the following key electrical and mechanical parameters: reference type (shunt), output type (adjustable), voltage output range (minimum and maximum values), output current capability, tolerance, temperature coefficient, cathode current, operating temperature range, mounting type, and package specifications. Substitutes are only listed if they match these values within the provided specifications for proper drop-in compatibility.

Parameter Comparison

Engineering Selection Recommendations

When selecting a substitute for the LM431CCMX, consider both product status and compliance criteria. The LM431CCMX and TL431BCDR are ROHS3 compliant and REACH unaffected; TL431BCD is RoHS non-compliant. All parts listed feature the same package, mounting type, and meet the operating temperature requirements. TL431BCDR is listed as active, LM431CCMX and TL431BCD are obsolete.

Frequently Asked Questions (FAQ)

Q1: What substitute parts are available for LM431CCMX?
A1: TL431BCD from onsemi and TL431BCDR from Texas Instruments are substitute parts. Selection should be based on electrical parameters and compliance requirements.

Q2: Are the mechanical dimensions and package types identical across substitutes?
A2: All substitute parts provided use the 8-SOIC (0.154", 3.90mm Width) package, matching LM431CCMX for footprints and surface mount compatibility.

Q3: Does RoHS compliance differ between listed substitutes?
A3: LM431CCMX and TL431BCDR are ROHS3 compliant; TL431BCD is RoHS non-compliant.

Q4: Can the substitute parts be used in the same operating temperature range?
A4: All parts support 0°C ~ 70°C operating temperature range.

Q5: Are tolerances and electrical outputs closely matched?
A5: Tolerances for the substitutes are within -0.6%/+0.4% and ±0.4%/±0.5%. Output voltages and currents are closely matched.

Q6: Is the product status relevant for engineering selection?
A6: TL431BCDR is active, while LM431CCMX and TL431BCD are marked as obsolete; for new designs, active status may be preferred within provided parameters.