Campbell Collins Ltd is now TTI

Campbell Collins Ltd, now TTI Inc, is a specialist, niche supplier of Power Supplies, Capacitors and Hi-Rel Power Semiconductors to Electronic OEM's in the UK. We offer products from several major global manufacturers, including MTM Power, PowerMate P-Duke, Phihong, Fisher & Tausche, ICEL and MS Kennedy, giving full franchised design-in and post design support.

Through our extensive product portfolio, we are able to address the Military, Avionic, Aerospace, Space, Medical, Industrial, Transportation and Telecom marketplaces with devices specifically designed for use within these fields. Using our carefully selected franchised partners, we are able to offer customers in the UK the most technologically advanced and cost competitive solutions for your application, covering the following types of product and many more:

  • Isolated DC/DC Converters
  • Non-Isolated Point of Load Converters
  • AC/DC Power Supplies
  • DC/AC Inverters
  • LED Power Supplies/Drivers
  • Hermetic High Voltage / High Power Rectifiers
  • Hermetic Zeners, Schottkys, TVS's, FETs, Bipolar Transistors & IGBTs
  • Power Hybrids
  • Motor Controllers
  • Operational Amplifiers
  • Other Hi-Rel Semiconductor Products
  • DMS & Obsolescence Management
  • Ceramic & Tantalum Capacitors
  • Aluminium Electrolytic Capacitors
  • Large Can Capacitors
  • Plastic Film Capacitors
  • Metalized Film Capacitors
  • Snubber Capacitors
  • Precision Capacitors
  • High Voltage / High Current Capacitors
  • Long Life / High Temp Capacitors
  • EMI Suppression Filters

Power Supplies

Campbell Collins has an extensive array of Power Supplies covering a wide range of technologies and applications including:

  • Isolated DC/DC converters - Industry Standard Footprints & Fractional Bricks
  • Point of load (POL) non-isolated DC/DC converters - both POLA & DOSA
  • EMC Filter Modules & Protection Modules including EN50155 & RIA12 Front Ends
  • AC/DC board mounted modules - pinned for integration into a PCB
  • AC/DC embedded power supplies - Open Frame, U-Channel, Enclosed, DIN Rail
  • AC/DC Eurocard Power Supplies
  • Low voltage AC/DC Power Supplies - 48Vac inputs
  • IP64/65/67 rated Power Supplies for outdoor applications
  • LED Power Supplies & Driversv
  • UL/EN60601-1 Medical Grade Power Suppliesv
  • Linear and Switching Regulators
  • Laptop style and Wall Plug style adapters
  • ATX & IPC Computer Power Supplies
  • LCD TV Power Supplies
  • Power over Ethernet (PoE) Injectors, Splitters, Extenders & Midspans


Offering one of the broadest ranges of capacitors in the industry, we can offer devices using the following technologies:

  • Ceramic
  • Tantalum
  • Film & Paper
  • Electrolytic
  • High Voltage Current

Hi-Rel Power Semiconductors

From discrete semiconductor devices, to complete power hybrids and Diminishing Supply IC's, we can offer products such as:

  • Motor Controllers
  • Power Hybrids
  • Voltage Regulators
  • Amplifiers
  • Rad Hard Products
  • Rectifiers
  • Schottkys
  • Bridges
  • Zeners & TVS's
  • Thyristors
  • MOSFET's & IGBT's
  • DMS/Obsolete IC's

Power Supplies


Murata Power Solutions (MPS)

offer DC/DC Converters, AC/DC Power Supplies, Panel Meters and Magnetic Components including Inductors & Common Mode Chokes


Power Modules provide High Efficiency, Extremely Reliable DC/DC Converters for the Telecom/Datacom and Industrial market places. Products include both Isolated and Non-Isolated devices
MTM Power

MTM Power

provides AC/DC and DC/DC Power Modules in various industry standard formats to the Transportation and Industrial Markets

PowerMate (P-Duke)

provide a wide range of affordable DC/DC Power Modules in both Isolated and Non-Isolated formats
N2 Power

N2 Power

offer ultra small, high efficiency AC/DC and DC/DC Power Supplies, reducing power, heat and cost within applications such as Servers & Routers, Switches & Telecom Gear, RAID's, NSU's and other processor based equipment.


offer a range of desktop and wall mount adapters, LED Drivers, Power over Ethernet (PoE) injectors, midspans, extenders and splitters, and open frame or redundant AC/DC Converters.




offers the world's most complete line of surface-mount and through-hole capacitor technologies across tantalum, ceramic, film, aluminium, electrolytic, and paper dielectrics
BHC Components


is one of Europe's leading manufacturers of large can Aluminium Electrolytic Capacitors, offering a wide product range


is a leading producer of plastic film and metallised plastic film capacitors for suppression and filtering applications, as well as offering a large range of EMC / RFI filter products including IEC Inlet Filters
Evox Rifa

Evox Rifa

provide a wide range of Electrolytic, Plastic Film and Paper Capacitors
Fischer & Tausche

Fischer & Tausche

Capacitors Group offer a range of Electrolytic and Film Capacitors covering a broad spectrum of applications from high specification Audio devices to Power & Motor start units
ICEL Capacitors


produces plastic film capacitors, R-C Networks and Interference Suppressors for motor start, power electronics, medical, industrial, traction drives, UPS, SMPS and telecom applications

Hi-Rel Power Semiconductors & DMS

MS Kennedy

MS Kennedy

is a leader in the design and production of high performance analogue microelectronics for the Military and Aerospace markets. Products include Op-Amps, Motor Drives, Power Hybrids and Linear & Switching Regulators

Whether you are starting a new design, having problems sourcing an existing or obsolete product, need technical design assistance, or have pricing or lead-time issues, our Sales Team will be pleased to help solve your problem. Please contact us using the details below.

Mailing Address

TTI, Inc. UK Branch
Suite S06
Business & Technology Centre
Bessemer Drive


+44 (0) 1438 794 170


+44 (0) 1438 791 139