Integration of SMT and through-hole components for hybrid products.

All processes, including SMT, through-hole, and hand add, meet industry standards. Electrostatic discharge management aligns with ANSI/ESD S20.20 standards. Craftsmanship adheres to IPC-J-Std-001 and IPC-A-610 Class III specifications.

Protective coatings available in urethane, acrylic, and perylene.

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Our State-of-the-Art Equipment for Electronics Manufacturing

Q: Surface Mount Technology (SMT)

Two high-capacity lines with a placement rate of 52,000 components per hour. Supports components ranging from 0.01" x 0.02" (0201) to 2.17" x 2.17". Regular placement of BGAs and fine-pitch parts.

Q: Through-Hole Assembly

Selective wave, wave soldering, or manual assembly by IPC-A-610 Classl III-trained staff, following IPC-J-Std-001 standards.

Q: Flex Circuit Assemblies

Versatile solutions for flexible circuit applications.

Q: Programming Capabilities

FPGA and EEPROM programming are available.

Discover our commitment to precision with a visit to our 42,000-square-foot facility at S&K Electronics, Inc. We are strategically located between Missoula and Kalispell, MT, in the heart of the Mission Valley. Our facility is spread across three buildings and houses advanced automated equipment for manufacturing, inspection, and testing. In addition, we have a fully equipped machine shop to support our capabilities in delivering high-quality custom cable assemblies and wire harness assemblies, electromechanical box builds, and circuit card assemblies, all on schedule.

Circuit Card Manufacturing Equipment

Manufacturer And Model Overview

We use a variety of advanced equipment to ensure precision and quality in every circuit board assembly project:

Grieve / 333 (qty 4) – Curing Ovens
Mirtec MV-6 OMNI (qty 2): 3D Inspection Systems
Cencorp / 1001SR – Panel Router / Depanelizer
Universal / Fuzion XC (qty 2): Pick & Place Systems
Universal / Fuzion 1 -11 (qty 2): Pick & Place Systems
FKN Systek / K3000S Linear Blade Depanelizer
Hepco / Model 8000-1: Axial Lead Cutting & Forming System
Hepco / Model 3000-2: Lead Cutting System
Electrovert Aquastorm 100C: DI Wash System
Electrovert AQFSM Chem Wash System
Rehm / VXS 522
Rehm / VXS 523
Ace Productions / KNG-40: Nitrogen Generation System
Dispense Works / RP-1215: Epoxy Dispenser
Ace Productions / KISS-103: Selective Wave Solder System
Ace Productions / KISS-103 Gen II: Selective Wave Solder System
Seika Machinery / DXU-1001 (qty 2): Temp/Humidity Chambers
Seika Machinery / MCU-301 SE: Temp/Humidity Chamber
Aqueous Technologies / AQ-201SC: Ultrasonic Stencil Cleaner
Dek Horizon 03ix / Dek NeoHorizon 03ix
ERSA / IR/PL 650A: BGA Rework Station
TYCO / Model BMEP-5T: Electric Press
AON 3D / M2 V1.0.05: 3D Printer
Ultimake S5: Large-Format 3D Printer
SCS / PC V: Precision Coat V

Cabling

Equipment Overview

We utilize a range of top-tier equipment for high-precision cable manufacturing:

Molex / T42: Crimp Presses
Ideal / 45-754: Wire Processing Machine
Penta Power: Cable Braider
Grieve / Model 333: Industrial Oven with Chart Recorder
Schleuniger / HS4140: Hot Stamp Cable Marker
Schleuniger / StripCrimp 75: Cut/Strip/Crimp Press
Schleuniger / CoaxStrip 5300: Coaxial Cable Stripper
Schleuniger / PowerStrip 9500: Automatic Cutter and Stripper
Schleuniger / PreFeeder 220/9500: Wire Cutter/Stripper
RTMC Spectrum Tech
WD-1RX-25: Laser Wire Stripper
Tri-Star M100-L/10: Laser Wire Marker

RF Testing Capabilities

We specialize in RF testing, including insertion loss and VSWR measurement up to 40 GHz using:

HP8720D VNA
Anritsu S820E-040 SiteMaster

Our advanced equipment ensures precision and reliability in every cable assembly and testing process.

Inspection and Testing

Model Description And Manufacturer Overview

Our comprehensive inspection and testing capabilities are supported by high-precision tools:

Yxlon Y-Cougar SMT BGA: X-Ray Station
Daniels/Alphatron/MPT-2000A: Wire Crimp Pull Tester
DITMCO International/2650: Wiring Analyzer (1000-point)
DITMCO International/2650: Wiring Analyzer (3000-point)
Keysight i3070 S6 In Circuit Tester (ICT)
Aqueous Tech ZI-100A: Zero Ion Cleanliness Tester
Cirris/Signature 1000 H+: Cable/Harness Tester
Checksum/EMS/FT: Manufacturing Defect Analyzer
Ransco/7303-1: Thermal Shock Chamber
Sun Electronics/EC13HA: Thermal Test Chamber Qty: 2
Cirris/Signature 1000HX: Cable/Harness Tester
Mirtec MV-6 OMNI: 3D (qty 2)
Hioki/1240-01: X-Y In Circuit HiTester
Cirris Signature 1100R+: Cable/Harness Tester
Keyence IM7020: Optical Comparator
Keyence XM-1200 CMM System
Bowman P series XRF System

Additionally, we use standard bench test equipment to support custom functional testing.

Machine Shop

Manufacturer and Model Description

Our machine shop is equipped with advanced tools to support precision manufacturing:

Bridgeport 9 X 42 Trackmill: With Powerfeed
Fadal/EMC 3-Axis CNC Milling Centers
Birmingham 9 X 48 Vertical Mill
SGS/Model 18M: 6” X 18” Surface Grinder
Takisawa/TSL-800D: Engine Lathe (14” Swing & 48” Bed)
J & L/MBS1014W-3: Horizontal Band Saw
RPM/TRAK DPMSX2: TRAK DPM2

These tools allow us to deliver high-quality, precise manufacturing solutions.

Here's an alt tag for the image: Microchip on circuit board glowing blue.

Precision Electronics Assembly With Proven Expertise

With 40 years of experience, we specialize in producing high-quality cable and wire harness assemblies, electromechanical box builds, and circuit card assemblies. Our electronics manufacturing services at S&K Electronics, Inc. include surface mount, through-hole, mixed technologies, selective wave, hand add, and wave soldering.

Innovation and Reliability in Every Product

Backed by a skilled workforce and cutting-edge engineering, we prioritize delivering exceptional products on time, every time. Flexibility, scalability, and innovative manufacturing processes ensure we exceed our clients’ expectations consistently.

Close-up of a circuit board with microchip.

Circuit Card Assemblies

S&K Electronics, Inc. provides a range of circuit card assembly (CCA) solutions tailored to meet diverse product needs. Our advanced methods include:

Surface Mount Technology (SMT)

PCA Test Capabilities

In-circuit testing conducted using Hewlett-Packard Series II systems.
Hioki 1240 X-Y Flying Probe tester ensures precise circuit evaluations.
Comprehensive testing with Checksum EMS FT systems.
Functional testing solution by S&K Electronics skilled engineering team.
Environmental stress screening (ESS) for durability and reliability.
Every product undergoes 100% inspection and testing for guaranteed quality.

Through-Hole Assembly

Mixed Technology

Flex Circuit Assemblies

Quality Conformance

Programming Capabilities

Conformal Coating

All units assembled in a controlled electrostatic discharge (ESD) environment.

Wiring Solutions

At S&K Electronics, Inc., our cable and wire harness assembly processes utilize advanced automated equipment from Schleuniger. These tools efficiently cut, strip, and, if necessary, mark wires.

Wire types: insulated, bus, shielded, coaxial, twisted, and semi-rigid
Laser stripping of wires
Hand lacing for added flexibility
Solder and crimping connector services
Cable lengths from under an inch to over 100 feet
Wire gauges ranging from 28 AWG to 0 AWG
Handling both low- and high-volume orders
Injection Molding and potting capabilities for durable assemblies

Simple to intricate designs, from straight to multi-branched configurations
State-of-the-art automated wire processing and crimping equipment
Adherence to IPC-J-Std-001 and IPC/WHMA-A-620 standards for superior workmanship
Automated testing using DITMCO, Cirris, and Custom systems
Every product undergoes thorough 100% inspection and testing for quality assurance.

Here's an alt tag for the image: Blue Ethernet cable, RJ45 connectors.

Electromechanical Box Builds

We deliver complete electromechanical assembly solutions by integrating circuit card sub-assemblies, wiring, and metal or plastic enclosures. We specialize in projects ranging from straightforward wire and crimp-pin assemblies to complex interconnect boxes involving over 20 connectors and up to 500 individual wires. Our assemblies meet both military and commercial standards.

Seamless Integration into Electromechanical Box Builds

Our dedicated team oversees the manufacturing of all subassemblies, ensuring seamless integration and the timely delivery of high-quality products every time.

Assembly: full racks, compact boxes, or simple wire crimps
Potting, encapsulation, and heat shrink techniques
Dependable supply chain for plastic and metal components
In-house circuit card assembly capabilities
In-house wire harness assembly services
Testing capabilities, including functional testing and environmental stress screening (ESS)
Riveting and hardware installation
Compliance with IPC-J-Std-001, IPC-A-610, and IPC/WHMA-A-620 Class III workmanship standards
All products undergo rigorous 100% inspection and testing
Custom special processes tailored to meet critical assembly requirements

Trusted Provider of NBC Heater Units

For over 40 years, S&K Electronics, Inc. has been a trusted supplier to the Department of Defense, delivering over 250,000 NBC (Nuclear-Biological-Chemical) Heater assembly units. Designed and qualified by our in-house experts, this electromechanical assembly is built to meet rigorous government specifications. Our continuous use of lean manufacturing techniques has ensured that these units remain cost-effective while maintaining the highest quality standards.

NBC Heater Key Specifications

MIL-PRF-51191
NSN: 4240-00-807-6856
Heater, air, electrical, M3

Additional Value-Added Processes

We are capable of performing a variety of value-added processes, ensuring each NBC Heater unit is tailored to meet specific operational needs.

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