Yeonhab Precision Co., Ltd. is a specialized company established in 1980, leading the localization of core electrical and electronic components. Its capabilities include the development and production of slip rings, special connectors, cable harnesses, and data link systems for the defense and aerospace sectors. The company secures competitiveness in domestic and international markets through high-reliability products and unique technological expertise. A strong focus on developing defense and space-grade components resilient to extreme environments is evident. The company contributes to technological self-reliance through continuous R&D investment.YeonhabPrecisionCo.,Ltd.isaspecializedcompanyestablishedin1980,leadingthelocalizationofcoreelectricalandelectroniccomponents.Itscapabilitiesincludethedevelopmentandproductionofsliprings,specialconnectors,cableharnesses,anddatalinksystemsforthedefenseandaerospacesectors.Thecompanysecurescompetitivenessindomesticandinternationalmarketsthroughhigh-reliabilityproductsanduniquetechnologicalexpertise.Astrongfocusondevelopingdefenseandspace-gradecomponentsresilienttoextremeenvironmentsisevident.Thecompanycontributestotechnologicalself-reliancethroughcontinuousR&Dinvestment.
Key Products/TechnologiesKeyProducts/Technologies
Cable Assembly: A diverse product line including cable assemblies for warships, guided weapons, tracked vehicles, antennas, power, engines, signals, wired communication lines, and Cable Assembly Accessories. Possessing core structural design technology and in-house production capabilities for world-class harness components. Expertise in EMI shielded cable assembly technology.CableAssembly:Adiverseproductlineincludingcableassembliesforwarships,guidedweapons,trackedvehicles,antennas,power,engines,signals,wiredcommunicationlines,andCableAssemblyAccessories.Possessingcorestructuraldesigntechnologyandin-houseproductioncapabilitiesforworld-classharnesscomponents.ExpertiseinEMIshieldedcableassemblytechnology.
Connectors: Based on YH CONNECTOR manufacturing technology, the company has localized over 104 types of connectors, including MIL-DTL-26482 Series II and MIL-DTL-38999 Series I. Production of high-reliability, ultra-small, and lightweight Micro-D Subminiature connectors meeting MIL-DTL-83513 standards. Offering various models such as YH38999 I/III/IV Style, YH26482 I/II Style, and YH5015 Style. Products are applied in extreme field environments, medical equipment, electric vehicles, and industrial machine tools requiring high reliability.Connectors:BasedonYHCONNECTORmanufacturingtechnology,thecompanyhaslocalizedover104typesofconnectors,includingMIL-DTL-26482SeriesIIandMIL-DTL-38999SeriesI.Productionofhigh-reliability,ultra-small,andlightweightMicro-DSubminiatureconnectorsmeetingMIL-DTL-83513standards.OfferingvariousmodelssuchasYH38999I/III/IVStyle,YH26482I/IIStyle,andYH5015Style.Productsareappliedinextremefieldenvironments,medicalequipment,electricvehicles,andindustrialmachinetoolsrequiringhighreliability.
Slip Rings: Core components for weapon systems such as K-2 tanks, K-9 self-propelled howitzer turrets, and radar systems. Successful localization of de-icing slip rings for Korean Utility Helicopters (KUH). Capabilities in developing high-performance slip rings through concentric axis stabilized MIL-grade rotor manufacturing technology and optical design technology.SlipRings:CorecomponentsforweaponsystemssuchasK-2tanks,K-9self-propelledhowitzerturrets,andradarsystems.Successfullocalizationofde-icingslipringsforKoreanUtilityHelicopters(KUH).Capabilitiesindevelopinghigh-performanceslipringsthroughconcentricaxisstabilizedMIL-graderotormanufacturingtechnologyandopticaldesigntechnology.
Data Link Systems: Development of 10Mbps C-Band data link systems for long-distance operation of small and medium-sized unmanned aerial vehicles. Capable of real-time transmission of video and control signals, achieving communication distances of over 100km. Development and production capabilities for integrated communication assemblies for UAV data links.DataLinkSystems:Developmentof10MbpsC-Banddatalinksystemsforlong-distanceoperationofsmallandmedium-sizedunmannedaerialvehicles.Capableofreal-timetransmissionofvideoandcontrolsignals,achievingcommunicationdistancesofover100km.DevelopmentandproductioncapabilitiesforintegratedcommunicationassembliesforUAVdatalinks.
Communication Devices and Systems: Expertise in wireless and wired complex communication devices, Ad-hoc networks, and SDR radio design technologies. Track record of developing Korean Intercom VIC-7K communication sets and digital vehicle intercom systems (VIC-9K).CommunicationDevicesandSystems:Expertiseinwirelessandwiredcomplexcommunicationdevices,Ad-hocnetworks,andSDRradiodesigntechnologies.TrackrecordofdevelopingKoreanIntercomVIC-7Kcommunicationsetsanddigitalvehicleintercomsystems(VIC-9K).
Power/Control Devices: Diverse power and control solutions for unmanned aerial vehicles (UAVs), including Power Management Units (PMU), Battery Control and Charging Units (BCCU), TRU, and inspection equipment. Application of power conversion efficiency over 85%, power factor over 0.9, and 60Hz input to 400Hz output conversion technology.Power/ControlDevices:Diversepowerandcontrolsolutionsforunmannedaerialvehicles(UAVs),includingPowerManagementUnits(PMU),BatteryControlandChargingUnits(BCCU),TRU,andinspectionequipment.Applicationofpowerconversionefficiencyover85%,powerfactorover0.9,and60Hzinputto400Hzoutputconversiontechnology.
Core AdvantagesCoreAdvantages
Leading Localization Company: Since its establishment in 1980, the company has focused on localizing components for over 30 years, successfully localizing over 3,000 types of components. This effort has resulted in foreign exchange savings of approximately 670 billion KRW.LeadingLocalizationCompany:Sinceitsestablishmentin1980,thecompanyhasfocusedonlocalizingcomponentsforover30years,successfullylocalizingover3,000typesofcomponents.Thisefforthasresultedinforeignexchangesavingsofapproximately670billionKRW.
High Reliability and Extreme Environment Response Technology: Possessing high-reliability product design and manufacturing technology ensuring stable performance in extreme operational environments for land, sea, and air weapon systems and aerospace platforms. Successful localization of space-grade connectors capable of withstanding vacuum, cryogenic, and high-temperature conditions in space.HighReliabilityandExtremeEnvironmentResponseTechnology:Possessinghigh-reliabilityproductdesignandmanufacturingtechnologyensuringstableperformanceinextremeoperationalenvironmentsforland,sea,andairweaponsystemsandaerospaceplatforms.Successfullocalizationofspace-gradeconnectorscapableofwithstandingvacuum,cryogenic,andhigh-temperatureconditionsinspace.
International Certifications and Quality Competitiveness: Multiple QPL (Qualified Products List) certifications from the U.S. Defense Logistics Agency (DLA), the first in Asia. World-class quality competitiveness meeting strict military specifications (MIL-SPEC) for products like MIL-DTL-38999 Series IV, SAE AS22759 Wire, and MIL-DTL-26482 II. Holding various quality certifications including CMMI Level 3, National Defense Mark, and KOLAS International Accredited Testing Laboratory (for EMI shielding).InternationalCertificationsandQualityCompetitiveness:MultipleQPL(QualifiedProductsList)certificationsfromtheU.S.DefenseLogisticsAgency(DLA),thefirstinAsia.World-classqualitycompetitivenessmeetingstrictmilitaryspecifications(MIL-SPEC)forproductslikeMIL-DTL-38999SeriesIV,SAEAS22759Wire,andMIL-DTL-26482II.HoldingvariousqualitycertificationsincludingCMMILevel3,NationalDefenseMark,andKOLASInternationalAccreditedTestingLaboratory(forEMIshielding).
Unique Technology and R&D Investment: Accumulation of unique technological expertise through numerous government R&D projects since the establishment of its technology research institute in 1996. Continuous technological development capabilities supported by over 80 veteran researchers.UniqueTechnologyandR&DInvestment:AccumulationofuniquetechnologicalexpertisethroughnumerousgovernmentR&Dprojectssincetheestablishmentofitstechnologyresearchinstitutein1996.Continuoustechnologicaldevelopmentcapabilitiessupportedbyover80veteranresearchers.
Cost-effectiveness and Production Know-how: Possessing production know-how that enables timely delivery at prices 90% lower than foreign-made components. A multi-product, small-batch production system for flexible response to customer demands.Cost-effectivenessandProductionKnow-how:Possessingproductionknow-howthatenablestimelydeliveryatprices90%lowerthanforeign-madecomponents.Amulti-product,small-batchproductionsystemforflexibleresponsetocustomerdemands.
Expansion of Business Areas: Successful development of space-grade connectors for space launch vehicles and satellites, expanding beyond traditional defense and aerospace components. This represents a significant growth driver for the company.ExpansionofBusinessAreas:Successfuldevelopmentofspace-gradeconnectorsforspacelaunchvehiclesandsatellites,expandingbeyondtraditionaldefenseandaerospacecomponents.Thisrepresentsasignificantgrowthdriverforthecompany.
Target IndustrieTargetIndustrie
Defense Industry (Land, Sea, Air weapon systems, tanks, guided weapons, warships, combat vehicles, self-propelled howitzers)DefenseIndustry(Land,Sea,Airweaponsystems,tanks,guidedweapons,warships,combatvehicles,self-propelledhowitzers)
Aerospace Industry (Aircraft, helicopters, unmanned aerial vehicles (UAVs), space launch vehicles, satellites)AerospaceIndustry(Aircraft,helicopters,unmannedaerialvehicles(UAVs),spacelaunchvehicles,satellites)
Industrial Electrical and Electronics SectorIndustrialElectricalandElectronicsSector
Certifications: Multiple QPL (Qualified Products List) certifications from the U.S. Defense Logistics Agency (DLA) (MIL-DTL-38999 Series IV, SAE AS22759 Wire, SAE AS81044 Wire, MIL-DTL-26482 II, MIL-DTL-83513 (A-F), MIL-DTL-83723 III, NEMA WC27500-2020 Electrical cable, MIL-DTL-83513 (G), MIL-DTL-38999/51, /52).Certifications:MultipleQPL(QualifiedProductsList)certificationsfromtheU.S.DefenseLogisticsAgency(DLA)(MIL-DTL-38999SeriesIV,SAEAS22759Wire,SAEAS81044Wire,MIL-DTL-26482II,MIL-DTL-83513(A-F),MIL-DTL-83723III,NEMAWC27500-2020Electricalcable,MIL-DTL-83513(G),MIL-DTL-38999/51,/52).
Certifications: Holding CMMI Level 3 certification, National Defense Mark certification, KOLAS International Accredited Testing Laboratory certification (for EMI shielding), ISO 9001 certification, KS certification, Venture Company certification, and Productivity Management System certification.Certifications:HoldingCMMILevel3certification,NationalDefenseMarkcertification,KOLASInternationalAccreditedTestingLaboratorycertification(forEMIshielding),ISO9001certification,KScertification,VentureCompanycertification,andProductivityManagementSystemcertification.
Technical Competence: Capabilities in MIL-STD-810 and MIL-STD-202 military specification environmental testing. High-level technical expertise including EMI shielding/explosion-proof filter design technology.TechnicalCompetence:CapabilitiesinMIL-STD-810andMIL-STD-202militaryspecificationenvironmentaltesting.High-leveltechnicalexpertiseincludingEMIshielding/explosion-prooffilterdesigntechnology.