Mission Critical Sales LLC


We serve a limited number of manufacturers to deliver factory-level product depth, mindshare, and responsiveness to our customers and principals.


We are degreed engineers with years of experience in Telecom, Military, Data Center, and Utility markets as well as Medical, Test, and Scientific OEMs and End Users.


We work from C-suite to staff to communicate, present and deliver the value of our products with perspicacity, alacrity, and integrity.


RF/Microwave, Power, and Test & Measurement.   COTS, modified standard, and full custom solutions to demanding requirements.


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Isolators & Circulators
Mil Spec, Ferrite, High Power

Wide range of standard and custom waveguide, coaxial, microstrip, drop-in, and hybrid configurations, from 40MHz to 40GHz. High power up to 25kW.

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RF & Microwave Filters
Satcom, Radar and Medical

Waveguide and Coax, Combline, Interdigital and Cavity structures. From 100MHz to 50GHz. Fast delivery from stock and custom models. No NRE on standard design modifications.

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Waveguide Components
Diplexers, Combiners & Couplers

Standard and custom OMTs and magic tees, couplers, straights, bends, twistflex, feed horns, coaxial and waveguide transitions, rotary joints. Challenging specifications with little or no NRE.

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RF & Microwave Amplifiers
From DC to 40GHz

RF & Microwave amplifiers available from stock and quickly modified. Amplifiers are tuned for exceptional amplitude flatness as well as low noise. Octave band and broadband, high power and low noise.

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RF & Microwave Control
Switches & Attenuators

PIN diode switches up to SP12T, solid state and relay attenuators from DC to 18GHz. Hermetic and MIL screening, fast modifications, and custom assemblies are competitively priced.

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Precision Noise Sources
From 100Hz to 110GHz

White Gaussian Noise modules. DIP, SMT, drop-in, coax or waveguide packages. Temp ranges from -55°C to +125°C. Calibrated broadband modules for BITE, high output ENR

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Waveguide Assemblies
Custom design or Build-to-Print

Combine passive filters and components for less weight, loss, and cost. Simple to complex assemblies for radar, medical and satcom markets using standard, thin wall, half height, double-ridged, flexi or flex-twist waveguide. 100MHz to 50GHz.


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Custom Power Assemblies
Box, Shelf, or Full Racks

Application specific solutions from standard or modified power modules. Plug-compatible legacy upgrades. Options include sliders, breakers, LVD, battery, and control systems.

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Energy Storage Systems
Lithium Battery Systems

Precise monitoring and charge control down to the cell level. Ideal VRLA replacement. Integrated battery balancing to increase longevity. 24, 36 and 48VDC

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High Power
Up to 150kW

Benchtop bipolar to 1kW, unipolar from 5kW to 15kW, and full racks to 150kW. Local, analog or digital programmable.

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Mission Critical Power
Sealed and Submersible

Sealed power modules ideal for harsh or unusual environments such as railroad/mass transit, military, marine, and industrial applications. Fault-tolerant design, eliminating single point of failure and hot swap capability.

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Embedded DC/DC Subsystems
COTS, Telecom & Industrial

Rugged and compact power systems for embedded, high-performance computing, and telecom. High density convection cooled modules in standard and custom packaging.

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Extreme Environments

Ultracapacitors up to 370F in a single D cell, to -55°C or +150°C, 1000G shock and hermetically sealed for MIL/Avionics, Pulse RADAR, actuators, energy, and industrial applications.

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AC/DC Power Supplies
Up to 3kW

Standard and modified, low profile, open frame or enclosed. UL, CE, RoHS compliant. Remotely programmable, linear, switch mode, medical and ferroresonant models.

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Lithium Battery Packs
Custom Turnkey Solutions

Smart chargers mated with application-optimized Li-Ion chemistries and integrated smart battery management. Turnkey design, certification, manufacturing and test for medical, robotic and UAV applications.

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High Density DC/DC Converters
Board Mounted, POL

Highest density, 1/32 to full brick isolated board mounted power modules and non-isolated POL converters. Standard and Rugged/COTS encapsulated versions. DOSA compatible, wide input.

Test & Measurement

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Electronic Loads
1KW to 5kW

Up to 600 Volts DC and up to 800 amperes per module. Constant E, I, P, I/E, E/I. Air Cooled. Local, Remote Analog Control and USB Standard with optional GPIB and Ethernet.

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Signal Conditioning
Airborne or Lab

Robust, flight qualified Airborne Charge Amplifiers, Differential Charge Amplifiers, In-Line Charge Converters, Constant Current Power Supplies and ICP Compliant.

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Hot Swappable Power Systems
Low Profile and High Power

Rugged, N+1 redundant systems from 1U to multi-rack designs with distribution and control. Fan or convection cooled, keyed for reliable field replacement.

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Linear Precision Power Supplies
Ultra Quiet, Fast, and Stable

Ultra low ripple, unipolar or bipolar transitioning between source and sink, capable of driving highly inductive or capacitive loads.

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High Voltage
Up to 2kV

Fast and ultra low noise linear programmable systems, 40W and 200W. Local or digitally controlled via GPIB.

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White Gaussian Noise Instruments
From 10MHz to 40GHz

Standard and custom noise test solutions for commercial, SATCOM, and military applications. Programmable, rugged and economical for wireless system and component signal testing and simulation.

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Force Balance Inertial Grade & Piezo

Ultra low noise, radiation resistant, and robust for industrial, military and commercial avionics, rail, and engine monitoring. Precise DC and near-DC measurements in demanding shock and wide band vibration environments.

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Sensors & Transducers
Military and Industrial

Piezoelectric vibration and pressure sensors, strain gage aircraft mainframe fatigue sensors, and precision linear variable differential transducers.

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Fiber Optic Pressure Seals
Up to 25 fibers per housing

Designed to provide a safe, convenient, reliable method of exiting fiber optic data lines through a structure while preserving the integrity of either a pressure or vacuum environment.


Exclusive New England sales representatives for these industry leaders, ready to support you.

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A1 Microwave

Designer and manufacturer of filters, diplexers, power combiners, couplers and adaptors for satcom, telecom, radar, medical and scientific markets. In house CNC machining, turning, brazing, soldering and bending facilities, plus proprietary design and simulation software to for precise manufacturing and fast delivery.

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Amplical designs and manufactures high performance, cost-effective RF and microwave amplifiers, switches and control components up to 40GHz. Quick delivery from comprehensive catalog offerings. Complete electrical and mechanical customization available for full custom amplifiers, switches, attenuators, phase shifters, switch matrices, limiters, and multi-function assemblies.

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Aerospace, military and industrial sensors. Force balance inertial grade accelerometers & inclinometers, piezoelectric accelerometers, vibration & temperature, dynamic pressure sensors, strain gage fatigue sensors, and signal conditioning instruments.

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FastCAP Systems

High performance Ultracapacitors using vertically aligned carbon nanotubes. Standard sizes and custom modules to -55°C and up to +150°C go where others cannot.

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Kepco designs and manufactures modular and instrument power supplies, specializing in digital and analog-controlled fast-programmable, 4-quadrant, linear and switch-mode a-c to d-c converters. Kepco provides solutions to your most challenging power supply requirements.

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Lithium Power, Inc. offers turn-key lithium battery pack solutions from design, pilot and certification to production that meet unique requirements of cost, performance, reliability, and efficiency. Optimized SWaP for mission critical applications.

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NetPower Technologies

High density DC/DC board-mounted power modules and POL converters, standard and modified from 1/32 to full brick. Subsystems for COTS, embedded computing, telecom, and industrial applictions.

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Premier supplier of noise diodes, coaxial and waveguide sources, and precision noise instrumentation to 110GHz. Offering the most reliable, most advanced, and most cost effective noise products while providing unmatched, superior service for defense, aerospace, communications, test, and instrumentation.

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Sonoma Scientific

Preeminent manufacturer of specialty RF circulators and isolators, 40MHz to 40GHz. Waveguide, coax, drop-in, microstrip and hybrid. Multi-kW solutions; extremely low loss, exceptional IMD performance. Advanced ferrimagnetic, mechanical and electrical engineering for Mil, SATCOM, Medical, and Public Safety.