LM317EMPAlternatives & Equivalent Parts

LM317EMP is marked OBSOLETE. Compare the equivalents below, check each part's lifecycle, and request a quote on a suitable replacement.

About LM317EMP

LM317EMP is a Integrated Circuit component manufactured by Texas Instruments. It comes in a SOT223 (3-Pin) package. Below you'll find known alternative and equivalent parts that can serve as replacements in your design.

Need pricing on these alternatives?

Get one quote covering all 6 alternatives for LM317EMP — response within 24 hours.

Specification Comparison

ParameterLM317EMPSourceLM317EMPX/NOPBLM317EMPXTAJA105K020RNJ3520220RJT3520390RJT875115452003
ManufacturerTexas InstrumentsTexas InstrumentsTexas InstrumentsAVXTE ConnectivityTE ConnectivityWürth Elektronik
Package TypeSOT223 (3-Pin)SOT223 (3-Pin)SOT223 (3-Pin)Capacitor Moulded PolarisedResistor ChipResistor ChipCapacitor Al Electrolytic
Pin Count4442222
Temperature Range-55.0°C ~ 125.0°C-55.0°C ~ 125.0°C-55.0°C ~ 125.0°C-55.0°C ~ 105.0°C
Price$0.4467$0.5940$0.4131$0.0683$0.0096$0.0533$0.7467
StockIn StockIn StockIn StockIn StockIn StockIn StockIn Stock
LifecycleOBSOLETEACTIVEOBSOLETEACTIVEACTIVEACTIVEACTIVE
Electrical Parameters
Pbfree CodeYesYesNoYesYes
Date Of Intro1997-11-01
YTEOL015010101015
AdjustabilityADJUSTABLEADJUSTABLEADJUSTABLE
Dropout Voltage1-Nom2.25 V2.25 V3 V
Input Voltage-Max40 V40 V
Input Voltage-Min3 V3 V
Input-Output Voltage Differential-Max40 V40 V40 V
Input-Output Voltage Differential-Min3 V3 V3 V
JESD-30 CodeR-PDSO-G3R-PDSO-G4R-PDSO-G3
JESD-609 Codee0e3e0e3
Line Regulation-Max (%/V)0.070.050.07
Load Regulation-Max(%)1.5%1%1.5%
Number of Functions111
Number of Outputs111
Operating Temperature TJ-Max125 °C125 °C125 °C
Output Current1-Max1.5 A1.5 A1 A
Output Voltage1-Max37 V37 V37 V
Output Voltage1-Min1.2 V1.2 V1.2 V
Package Body MaterialPLASTIC/EPOXYPLASTIC/EPOXYPLASTIC/EPOXY
Package Equivalence CodeSOT-223SOT-223
Package ShapeRECTANGULARRECTANGULARRECTANGULARRECTANGULAR PACKAGERECTANGULAR PACKAGERECTANGULAR PACKAGE
Package StyleSMALL OUTLINESMALL OUTLINESMALL OUTLINESMTSMTSMTSMT
Packing MethodTRTRTRTR, PLASTIC, 7 INCHTRTRTR, EMBOSSED PLASTIC, 15 INCH
Peak Reflow Temperature (Cel)260260260
Qualification StatusNot QualifiedNot QualifiedNot Qualified
Regulator TypeADJUSTABLE POSITIVE SINGLE OUTPUT STANDARD REGULATORADJUSTABLE POSITIVE SINGLE OUTPUT STANDARD REGULATORADJUSTABLE POSITIVE SINGLE OUTPUT STANDARD REGULATOR
Surface MountYESYESYESYESYESYESYES
TechnologyBIPOLARBIPOLARBIPOLARMETAL GLAZE/THICK FILMMETAL GLAZE/THICK FILM
Terminal FinishTIN LEADMatte Tin (Sn)TIN LEADMatte Tin (Sn) - with Nickel (Ni) barrier
Terminal FormGULL WINGGULL WINGGULL WING
Terminal Pitch2.3 mm2.3 mm2.3 mm
Terminal PositionDUALDUALDUAL
Voltage Tolerance-Max5%5%
## LM317EMP Alternates Showing resultsImage
Time@Peak Reflow Temperature-Max (s)30
## LM317EMPX/NOPB Alternates Showing resultsImage
## LM317EMPX Alternates Showing resultsImage
Reach Compliance CodeCompliantCompliantCompliantCompliant
Factory Lead Time13 Weeks11 Weeks, 1 Day14 Weeks, 1 Day
Additional FeatureESR AND RIPPLE CURRENT IS MEASURED AT 100KHZESR is MEASURED AT 100KHZ,
Capacitance1 µF100 µF
Capacitor TypeTANTALUM CAPACITORALUMINUM ELECTROLYTIC CAPACITOR
Dielectric MaterialTANTALUM (DRY/SOLID)ALUMINUM (SOLID POLYMER)
ESR9000 mΩ20 mΩ
Height1.6 mm8.7 mm
Leakage Current0.0005 mA0.4 mA
Mounting FeatureSURFACE MOUNTSURFACE MOUNTSURFACE MOUNTSURFACE MOUNT
Negative Tolerance10%20%
PolarityPOLARIZEDPOLARIZED
Positive Tolerance10%20%
Rated (DC) Voltage (URdc)20 V20 V
Ripple Current37 mA175 mA
Size Code1206251225123333
Tan Delta0.040.08
Terminal ShapeJ BENDWRAPAROUNDWRAPAROUNDFLAT
ConstructionRectangularRectangular
Package Height0.6 mm0.6 mm
Package Length6.4 mm6.4 mm
Package Width3.2 mm3.2 mm
Physical Dimension6.4mm x 3.2mm x .6mm6.4mm x 3.2mm x .6mm
Rated Power Dissipation (P)1 W1 W
Rated Temperature70 °C70 °C
Resistance220 Ω390 Ω
Resistor TypeFIXED RESISTORFIXED RESISTOR
Temperature Coefficient200 ppm/°C200 ppm/°C
Tolerance5%5%
Working Voltage200 V200 V
Dimensions: Product Width 3.2 MMProduct Height .024 INCH
Product Height .6 MMProduct Length .252 INCH
Electrical Characteristics: Passive Component Tolerance 5 PCTPower Rating 1 WATT
Resistance Value 220 OHMResistance Class Up to 1kΩ
Product Type Features: Package Size Code 2512Resistor Type Power Resistor
Dimensions: Product Width .126 INCHProduct Length .252 INCH
Product Width 3.2 MMProduct Length 6.4 MM
Electrical Characteristics: Power Rating 1 WATTResistance Class Up to 1kΩ
Operating Voltage 200 VPassive Component Tolerance 5 PCT
Product Type Features: Resistor Type Power ResistorElement Type Thick Film
Diameter8 mm

Cells highlighted in yellow indicate differing values across parts. Always verify with official datasheets before substitution.

Need pricing on these alternatives?

Get one quote covering all 6 alternatives for LM317EMP — response within 24 hours.

Quick Links

LM317EMPX/NOPBby National Semiconductor Corporation Adjustable Positive Standard

Regulator, 1.2V Min, 37V Max, BIPolar, PDSO4

LM317EMPXby Texas Instruments Adjustable Positive Standard

Regulator, 1.2V Min, 37V Max, BIPolar, PDSO3

Why Look for Alternatives?

Finding alternatives for LM317EMP is essential for supply chain resilience. Component shortages, long lead times, and end-of-life notices can disrupt production schedules. Having verified alternative parts ensures your designs remain manufacturable.

When evaluating LM317EMP replacements, consider key parameters such as package compatibility, electrical specifications, and operating temperature range. Our engineering team can help verify pin-to-pin compatibility for your specific application.

Can't Find What You Need?

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FAQ

What is equivalent to LM317EMP?

Known equivalents for LM317EMP include LM317EMPX/NOPB, LM317EMPX, TAJA105K020RNJ. Contact FindMyChip for a full compatibility analysis for your specific application.

Can I use a different manufacturer's part instead of LM317EMP?

In many cases, yes. Cross-manufacturer alternatives exist for most standard components. However, always verify pin compatibility, electrical specs, and package dimensions before substituting in production.

How do I verify LM317EMP alternatives?

Compare the datasheet specifications including pinout, voltage ratings, timing parameters, and package dimensions. FindMyChip's engineering team can help with compatibility verification — submit an RFQ to get started.