|    Change Country Change Location USD
United States United States

Please confirm your currency selection:

US Dollars
Home » NEWEST Products » New by Manufacturer » Amphenol » Amphenol RADSOK Connectors & Contacts
NEWEST Products
Amphenol Industrial RADSOK® Connectors

Amphenol RADSOK® Connectors

Amphenol Industrial RADSOK® ConnectorsAmphenol Industrial RADSOK® Connectors

Amphenol can upgrade many core connectors by simply adding the RADSOK Advantage!

Amphenol RADSOK (RADial SOcKet) is:
  • Socket cylinder within female contact has several equally spaced longitudinal beams twisted into a hyperbolic shape.
  • As male pin is inserted, axial members in the female half deflect, imparting high current flow across the connection with minimal voltage loss.
  • The hyperbolic, stamped grid configuration ensures a large, coaxial, face-to-face surface area engagement.
  • Ideal for crimp termination applications requiring repeated mating cycles and high current with a low millivolt drop.
What does the AmphenolRADSOK Advantage have to offer?
  • High Ampacity
  • High Reliability
  • High Cycle Durability
  • Low Millivolt Drop
  • Low Insertion Force
  • Low T-Rise
The Wide Variety of AmphenolRADSOK Applications include:
  • Replacement of ring terminals (lugs) on threaded studs
  • High current PCBs
  • Communication towers
  • Backplane power
  • Uninterrupted power supplies
  • Fuel cell connectors
  • Hybrid electric vehicles
  • AC inductive drive motors
  • Power distribution modules
  • Busbar terminations (plug-in hardware/modules)
  • "Pluggable" breakers
  • Battery terminals
  • Contacts with RADSOK technology give 50% more ampacity.
  • RADSOK contacts can be designed to fit any housing
  • Developing Military applications of RADSOK technology
  • Combinations of RADSOK and high speed copper contacts in the same interconnect package


Amphenol RADSOK Hyperbolic Grid
RADSOK® Hyperbolic Grid

Amphenol® Amphe®-GT Reverse Bayonet Connectors for Power Applications

Amphenol introduces the new Composite GT series of connectors, with full worldwide approval from a major server manufacturer, for use as the environmental server power connector. Featuring a high-performance composite plug shell, coupling nut, receptacle, and hardware, this GT meets all of the specifications for high power process control and server applications.

Additional features include the RADSOK High Amperage Socket Contact Technology, enabling increased current ratings to 120A on individual contacts.

The RADSOK (RADial SOcKet) High Amperage, Low Insertion Force Socket Contact provides value to your purchasing, engineering, quality and manufacturing objectives. RADSOK technology is based upon a stamped and formed flat grid, uniquely twisted into a hyperbolic geometry to provide robust, high-density contact to the mating pin contact. Most pin and socket technologies rely upon spring (beam element) properties of the contact elements, which tend to weaken over time. Unlike most other pin and socket solutions, RADSOK also utilizes the tensile strength properties of the flat, high conductivity alloy grid. This provides the high normal forces required for conductivity while also providing large conductive surface area. Correspondingly low voltage drop and low temperature rise are also achieved while maintaining low insertion forces.

Compression (setscrew) wire termination to the 4/6AWG or 8/10AWG conductors allows easy field replacement of pin or socket contacts, or complete plug and receptacle assemblies, without requiring specialized tooling.

Additional benefits of the GT Reverse Bayonet product include:
  • Quick positive coupling
  • No lock wiring required
  • Audible, tactile, & visual indication of coupling
  • High shock and vibration capabilities
  • Waterproof (IP67)
  • Silver plated contacts

  • Rail Mass Transit
  • Mil/Aero
  • Heavy Equipment

Amphenol® Amphe®-GTR Reverse Bayonet Connectors Plug Diagram
Amphenol® Amphe®-GTR Reverse Bayonet Connectors Plug Diagram
Amphenol® Amphe®-GTR Reverse Bayonet Connectors Receptacle Diagram
Amphenol® Amphe®-GTR Reverse Bayonet Connectors Receptacle Diagram

Amphenol® RADSOK® PowerBus Amphe-PD™ Connectors

High-powered applications are constantly in need of a solution that is higher in power, smaller in size, and low in cost. The Amphe-PD™ uses Amphenol RADSOK technology to become the ideal solution. The low insertion force, locking, two-pole connector is UL listed at 69A and CSA listed at 55A. It is also TUV Finger Proof with a V0 fire rating. By combining parallel circuits into one circuit, heat generation is reduced and space is saved. Most importantly, reliability is increased.

Amphenol RADSOK PowerBus Amphe-PD Connectors Features
  • Low cost, 100% molded housings
  • Integrated latching mechanism
  • Easy, tool-less assembly
  • Low Insertion Force
  • High reliability
  • High Cycle Durability
  • High Ampacity
  • Tactile and audible locking
  • Proven metal clip contact retention on receptacles
  • TPA device on plug to insure socket locking
Amphenol RADSOK PowerBus Amphe-PD Connectors Markets

The flexibility of wires, busbars, and circuit boards allows the Amphe-PD™ to be used in a wide variety of high power applications. Applications such as Datacom and DC requiring frequent recharge like golf carts or medical equipment.

Amphenol® RADSOK® Amphe-Power® Series Connectors

The Amphe-Power® Series consists of three of the time-tested and reliable families of Amphenol Industrial Connectors, all of which are MIL-5015 styles, medium to heavy duty cylindricals. These series, enhanced with Amphenol RADSOK sockets, can now handle up to 50% higher amperages. Current Amphe-Power® product lines support from 50A to 1000A continuous duty.

Amphe-Power® GT:
  • Reverse bayonet coupling connector with an audible, tactile and visual full mating feature
  • Heavy duty, rugged shells with a wide variety of backshell options
  • Inserts available in Neoprene or Viton
  • Waterproof construction and available with over-molded coupling nut for added damage protection and increased gripping surface
  • Variety of plating options including non-cadmium zinc cobalt (black or green), non-conductive colorized anodic plating
Amphe-Power® 5015:
  • Durable, field proven cylindrical connector derived from MIL-5015 family
  • Threaded coupling connector with resilient Neoprene inserts, single key/keyway polarization
  • Styles include: solid shell for general, non-environmental applications; pressurized style for use on pressurized bulkheads or pressure barriers; environmental resisting style with strain relief; lighter weight and shorter environmental resisting style.

Amphenol® RADSOK® Board Level Connectors

The Amphenol RADSOK Advantage brings more power to the board with three new high amperage products: PowerBlok™, RADSERT™, and PGY™. Amphenol's RADSOK solution offers many options for high current single-point connections to printed circuit boards. The compact footprint design can supply up to 120 Amp to the board which preserves surface area and provides more flexibility in board design. Amphenol RADSOK PCB products are designed to be applied manually press-fit or by a reflow solder process, which eliminates the need for additional wires and/or special crimp tools.


RADSOK PowerBlok provides a high current single-point connection to the PCB with the proven reliability of compliant pin signals. The PowerBlok is designed to bring up to 70 Amps to the board, utilizing our custom 3.0mm RADSOK® design. The compliant pins are press-fit into the board to secure a solid connection and even signal flow.

  • High power to board interconnect in a small package
  • Compact footprint 0.618" x 0.618"
  • 3.0mm Amphenol RADSOK carries up to 70 amperes
  • Backplane power interface with compliant pins for signals
  • Touchproof cover
  • Radial design ensures many points of contact
  • Reduces failure modes, eliminates burn outs
  • No threaded fasteners
  • No special crimp tools required
  • Eliminates possible stress fractures in board
  • Faster through-put
  • RoHs compliant

Choose the Amphenol® RADSERT™ design when you need the most power in a single-point connection to the PCB. The RADSERT allows the board designer to bring power to the board from busbars suspended above the board and all of the board components. Pins from the busbar plug into the RADSOK's which are installed by press fitting the RADSOK into the RADSERT.

The RADSERT is press-fit into plated-through holes in the PCB. It provides the smallest footprint and is available in 2.4mm and 3.6mm for board thicknesses of .250" +/- .025". Other sizes may be custom designed to meet your specific application requirements.

  • High power to board interconnect in a small package
  • Hyperbolic socket design ensures many points of contact
  • Solder version or pre-loaded RADSERTS are installed during board fabrication
  • 2.4mm RADSERT carries up to 35 Amps
  • 3.6mm RADSERT carries up to 70 Amps
  • No special crimp tools required
  • No threaded fasteners
  • Eliminates risk of PTH cracking or delamination in board
  • Faster through-put
  • RoHs compliant

The RADSOK® PGY™ is an orthogonal card edge connector series, available in 3.6mm and 5.7mm contact sizes. The 5.7mm RADSOK PGY is Amphenol's highest current board level product rated to 120 amperes. The RADSOK® PGY connects to the board through a solder reflow process. The busbar pin will mate horizontally with the RADSOK® slightly above the board.

  • Orthogonal connection between card edge and busbar/backplane
  • Compact footprint
  • Legs of the PGY dissipate high power evenly
  • 5.7mm carries up to 120 Amps
  • 3.6mm carries up to 70 Amps
  • No threaded fasteners
  • No special crimp tools required
  • RADSOK's highest power to board level product
  • Faster through-put
  • RoHs compliant

Amphenol® RADSOK® SurLok™ Compression Lugs

Amphenol Industrial now features the SurLok™ Compression Lug. This is a field crimpable contact assembly featuring Amphenol RADSOK technology. This lug is similar to the standard Panduit, Burndy and Thomas and Betts compression lugs, except it has many more features and benefits.

Amphenol® RADSOK® SurLok™ Compression Lug Features
  • Easy Field Install - Crimp with Standard Color-coded Dies (U-die and 4-Indenter)
  • Built in Locking Feature
  • Plastic Housing Feature
    • Use with SurLok™ mating pin for protection from high current
  • Copper Alloy Construction
    • High current ratings and meets RoHS standards
  • High Performance
    • High Reliability
    • Higher Amperage
    • Low Insertion Force
    • High Cycle Durability
Amphenol RADSOK SurLok™ Compression Lug Markets
  • Printed Circuit Boards
  • Telecommunications
  • Oil & Drilling Rigs
  • Heavy Equipment
  • Process Controls
  • Rail/Mass Transit
  • Medical Devices

Any applications that use high current, frequently plugged and unplugged cables, or plug and play setup would be an ideal situation to use the SurLok™ as a solution.

Amphenol® RADSOK® Helios H4 Connector

Amphenol Industrial Operations (AIO) offers products and solutions for all segments of the solar electric system. AIO understands the need for efficient (low loss) power transfer, highly reliable, and cost effective solutions that are required to be competitive in this industry. We can provide panel manufacturers, installers, and OEM's with connectivity products for both thin film and crystalline silicon technologies. has a broad range of technologies to help minimize the cost of inverters and power conditioners. Amphenol Industrial can help you power the planet with the sun. The Helios H4 connector is just one of the solar connector solutions Industrial has to offer.

Amphenol RADSOK Helios H4 Connector Features
  • Fully intermateable with industry standard
  • Meets all new NEC 2008 requirements
  • Quick and easy secure snap lock mating
  • Simple unlocking tool meets NEC requirements
  • Long-term UV and Ozone resistance
  • Highest current rating in industry
  • RoHS compliant
  • Complete Cable Assemblies available
  • Low contact resistance means low power loss
  • Ready for field assembly
  • No assembly required, no small parts to lose
Amphenol® RADSOK® Helios H4 Connector

RADLOK™ High Power Connectors

Amphenol Industrial RADLOK™ High Power Connectors utilize Amphenol's latest R4 RADSOK® technology and are designed to be compact and robust. Power Interconnect products often require additional mounting hardware (washers, clamps, bolts, and nuts), making them prone to costly labor expenses for installation and routine maintenance. Paired with Amphenol's RADLOK™ PIN, the single finger operation lock feature allows end users to connect any power distribution/storage system in a quick and secure manner. Amphenol RADLOK™ devices are ideal for applications requiring a reliable, easy to install, rugged, and cost-effective solution.

  • Voltage Rating: 1000V
  • Current Rating: 70A - 400A
  • Tool-Free Mechanical Locking
  • High cycle durability (500 mating cycles)
  • RoHS compliant
  • Available in Black, Red, Orange (custom colors available upon request)
  • Automotive
  • Heavy equipment
  • Power/battery storage
  • Hybrid-electric system
  • Power interconnect
  • Factory automation

Amphenol Industrial Tru-Loc® Connectors

Amphenol Industrial Tru-Loc® now offers a connector family with 1.5mm socket contacts (contacts sold separately) featuring Amphenol's RADSOK® technology. Tru-Loc®'s rugged, compact, thermoplastic construction makes it ideal for use in harsh environments where high vibration and caustic fluids are present. Offered in a 2-way, 4-way or 6-way plug and receptacle in-line system, Tru-Loc is rated to 13A continuous (with 16 gauge cable). It is designed to perform in demanding environments such as under valve covers on diesel engines to mate to fuel injectors. It can withstand vibrations up to 32 Grms, and the interfacial seal is molded out of a fluroelastomer material to withstand exposure to many chemicals.

Amphenol Industrial Tru-Loc® Connectors Features
  • 2, 4, or 6 pin connector with 1.5mm RADSOK® featured contacts (contacts sold separately)
  • Plug body with secondary latch
  • Fluoroelastomer main joint seal and silicone rubber wire seals to support IP67 rating
  • Dielectric withstanding voltage is 1600 Vac RMS
  • 13 Amp current rating
  • Insulation resistance can meet 100MΩ
  • Matting force less then 70N
  • Contact retention between 60~80N
  • Operating temperature can meet -40°C to +125°C, 100 cycles, 1 hour per cycle
  • Durability is 20 mating cycles

Amphenol Industrial Tru-Loc® Connectors Applications

Tru-Loc connector series is designed to perform in demanding environments, such as under valve covers on diesel engines and in high vibration sensor applications.

Amphenol Industrial ATHD Connector Series

Amphenol Industrial ATHD Connector Series is a sealed single pole, rugged, in-line connection system designed to replace splices as well as provide power wherever needed for size 12 and size 8 power contacts. Using Amphenol's exclusive RADSOK® technology, the connector can reach higher amperages than other connectors in its class. These connectors are ideal for rugged, high vibration applications found in the heavy equipment and mining markets. These sealed, thermoplastic connectors are field installable and repairable, eliminating the need for costly, non-repairable splices. The connection systems also feature clip slots for a variety of harness mounting solutions.The size 8 system is rated to 70A continuous with the RADSOK terminals and has a contact retention of 156N. The size 12 system is rated to 35A continuous with the RADSOK terminals and has a contact retention of 133N.

  • Size 8 crimp contacts are rated to 70A*
  • Size 12 crimp contacts are rated to 35A*
  • Both will meet 100 mating cycles
  • Designed for temperatures of -55°C to 125°C
  • Operating voltage of 1000 VAC
  • Dielectric withstanding voltage of 1500 VAC
  • RoHS compliant
  • Clip slots for a variety of mounting solutions
  • IP67 rated

* Using Amphenol's exclusive RADSOK® technology

  • Class 8 trucks
  • Construction equipment
  • Mining equipment
  • Agriculture/ Forestry
  • Automotive industry
  • Tractors
  • Power generation/ Large engines
  • Rail Mass Transit

Amphenol Industrial PowerLok™ Series Connectors

Amphenol Industrial PowerLok™ Series is the lowest cost cylindrical interconnect solution. Utilizing Amphenol's RADSOK® technology, PowerLok is designed with compactness and robustness in mind. Low insertion force/high cycle durability with secondary lock, prevents unintentional loosening of the contact. Suitable for applications up to 1000V ranging from 70A-500A, the PowerLok is a reliable, easy to use, and cost effective solution. Applications include energy storage, power distribution, and EV/HEV. PowerLok is IP67 when mated and RoHS Compliant.

  • Low profile
  • Mutil polarization
  • Low insertion force and high cycle durability
  • Secondary lock
  • Economical
  • Accept shielded & unshielded cable
  • Water immersion: IP 67, in mated condition
  • Scoop-proof, satisfy the battery or electric box needed
  • ROHS complaint
  • Voltage rating: 1000V
  • Current rating: 70A to 500A
  • Temperature range: -40C to +125C
  • Energy Storage
  • Power Distribution
  • EV/HEV

Amphenol Industrial H4 UTX™ PV Cable Connectors

Amphenol Industrial H4 UTX™ is a robust DC connector triple-certified to EN50521 TUV 1500V- Class A (All Access), UL6703 1000V (Americas) and JET 1500V (Japan) specifications, currently making it the only connector available for usage in all major global PV markets. The H4 UTX utilizes Amphenol's low resistance RADSOK® contact technology and is available in all AWGs, from 14 AWG to 8 AWG. They are fully mateable with all existing H4 PV connectors and the typical PV industry standard connectors. Offering an enhancement over the H4, the H4 UTX utilizes a ratcheting gland back nut, which prevents backspin once the nut is tightened.

  • Triple-Certified to UL 1000V, TUV 1500V - Class A (all access), and JET 1500V
  • Mates with existing H4s and typical PV industry standard
  • NEC Code Compliant (no locking sleeve required)
  • 0.25mΩ low contact resistance RADSOK® contact
  • Accepts wire gauges from 14AWG/2.5mm² to 8 AWG/10mm²
  • IP68 Rating (mated)
  • UL94 V-0 (self extinguishing)
  • RoHS, REACH, PAHS, and Halogen-free compliant
  • Wide operating temperature range (-40°C to 90°C)
Safety Features
  • NEC Code Compliant (no locking sleeve required)
  • UL94 V-0 (self extinguishing)
  • RoHS, REACH, PAHS, and Halogen-free compliant
Mechanical Characteristics
  • Mates with existing H4s and other typical PV industry standards
  • Accepts wire gauges from 14AWG/2.5mm² to 8 AWG/10mm²
  • Wide operating temperature range (-40°C to 90°C)
  • UL94 V-0 (self extinguishing)
Electrical Characteristics
  • Triple-Certified to UL 1000V, TUV 1500V - Class A (all access), and JET 1500V
  • 0.25mΩ low resistance RADSOK® contact
  • Accepts wire gauges from 14AWG/2.5mm² to 8 AWG/10mm²

UPC Connectors for HEV

Amphenol Industrial UPC (Ultimate Power Connector) Connectors for HEV are a series of plastic power connectors designed for use in the hybrid electric vehicle market. The 2-pole and 3-pole connectors incorporate RADSOK® technology for higher amperage, lower T-rise and voltage drop, and less resistance. RADSOK’s twisted grid configuration allows for up to 50% more current to pass through the same size pin, while providing increased reliability and cycle durability as well as lower mating forces. The compact, plastic shell structure is lightweight with a small footprint. The robust structure has continuous power at 250A or 400A and is field installable and repairable.

  • Plastic shell, light weight
  • Compact design for space considerations with EVs
  • Wide amperage range (200-400A)
  • Max continuous amperage for 9.1mm system is 250A (50mm2 cable)
  • Low mating/un-mating force
  • Touch-Proof (UL 2251)
  • UL 94V-0 flammability
  • HVIL (High Voltage Interlock Loop)
  • EMI Shielding (60db/100M)
  • Amphenol
  • Connectors|Connector-Circular