0.55mm Pitch High-Performance Coaxial Harness
The TSL series is a next-generation coaxial harness built for high-speed differential transmission, developed under the concept “NeGSSUC”: Next Generation Super Speed Micro (μ) Coaxial Connector. It was created to answer the demands of 5G, IoT, and AI.
32Gbps Differential Transmission
The TSL series supports high-speed differential transmission up to 32Gbps at a harness length of 1,000mm.
At 0.55mm pitch with 31 pins, the harness carries 10 differential pairs (20 coaxial AWG#32 wires), for an aggregate of 320Gbps across a single harness. Low loss and low skew are what make that high-speed signal support possible.
Impedance control
Impedance is controlled by tuning the material, shape, and dimensions of the connector, which improves attenuation. Beyond impedance control, resonance is addressed by keeping the ground connection points and the transmission path gradual rather than abrupt.
Reduced insertion depth and minimal stubs
Effective mating length for contact reliability is 0.5mm, which holds down how far the mating part penetrates. Stub length, which directly affects transmission characteristics, is optimally designed as well.
Multi-point grounding
The right-angle type (TSL00-31L) has 24 ground points; the straight type (TSL00-31S) has 15. A multi-point spring contact handles the ground between connectors.
The TSL carries over the multi-point grounding mechanism already proven in KEL’s conventional micro-coaxial cable connectors, along with a metal shell cover that surrounds the entire connector, for stronger noise suppression.
Paired with RUOTA High-Performance Coaxial Cable
Low loss and low skew are achieved by combining the connector with RUOTA, a high-performance coaxial cable from Totoku Electric with little attenuation and delay. Using RUOTA is what allows the connector’s performance to be fully realized at 32Gbps.
Cable length and bit rate
• Harness length is supported from 100mm to 6,000mm. Contact KEL for shorter or longer runs.
• Recommended coaxial cables are AWG#32 and AWG#36.
Guaranteed as a harness product
In high-speed transmission, the quality of the cable assembly is said to determine performance. KEL processes harnesses at designated factories and inspects every part before delivery, so the TSL is guaranteed as a harness product rather than sold as loose components.
For RUOTA AWG#32 up to 1,000mm, intra-pair skew is guaranteed at 10ps.
Skew under bending
Skew measurements taken with the cable bent show the harness can be used without issue even inside small equipment.
Variations and Pin Assignment
Variations
• The connection method supports both vertical and horizontal connection.
• The straight type (TSL00-31S) includes a suction tape and supports automatic mounting.
Pin assignment
• AWG#32: 20 coaxial connections across 10 differential pairs.
• AWG#36: full connection, all 31 coax.
Other arrangements can be accommodated flexibly. Contact KEL to discuss.
Lock Mechanism
The connector uses a lock structure with a positive click feel. A pull tape is fitted, so the connector unlocks by pulling the tape alone, making removal easy and reliable and improving workability.
Target Equipment
The TSL fits three broad jobs: replacing optical fiber cable to reduce cost, long in-equipment wiring runs (for example 5Gbps at 5,000mm), and high-speed in-equipment signal wiring (for example 32Gbps at 1,000mm).
Markets:
• 5G and IoT peripheral equipment
• Broadcast and imaging: IP transmission equipment, 4K/8K cameras, video servers
• Communication: fixed and mobile communication equipment, spectrum analyzers, server equipment
• Medical: image diagnostic equipment, medical cameras. Non Magnetic version available (TSL-NM2)
• Automotive: automotive cameras, ADAS
Specifications
Insulator material: LCP (with glass fiber), UL94V-0, black
Contact material: Copper alloy
Contact finish: Nickel plated base / gold plated finish
Shell material: PCB side, copper alloy; cable side, stainless
Shell finish: Nickel plated base / gold plated finish
Ground bar material: Copper alloy
Ground bar finish: Nickel plated base / tin plated finish
Rated current: 0.8A per terminal (when using RUOTA)
Contact resistance: 100mΩ max
Withstand voltage: AC200V, 1 minute
Insulation resistance: DC250V, 100MΩ min
Operating temperature range: -40°C to +85°C
Insertion and removal durability: 100 times
Recommended cables: AWG#32 / #36 coaxial cables
Contact a KEL sales representative for the specifications of the cable to be used.
Custom Harness Support
KEL builds custom harness products to customer specifications. Harness specialists handle the design, and KEL procures and manages cables and other parts. The quality of the finished harness is guaranteed.
Examples from KEL’s custom harness track record:
• Ferrite core mounting
• PTFE tape binding
• Tape applied near the connector
• Braided wire sleeve mounting
• Shrink tube mounting
• Partial tape mounting
• Spiral tube mounting
• Binding band mounting