Categorization：Harness Component
I-PEX 82999-100B-01-D belongs to the CABLINE®-CAL series 30Pin ultra-thin coaxial cable assembly, the official evaluation model corresponds to a 40AWG Micro-Coaxial Cable, with a length of 200mm and a 1-1 cable assembly structure. The cable assembly is paired with the wire end connector model 20777-030T-01, with wire position defined as 1-1, meaning that both ends of the cable assembly are terminated with connectors. The CABLINE®-CAL connector uses a 0.4mm Pitch, horizontal insertion structure, with a mating height of 0.73±0.07mm. The official high-speed test conditions use AWG #40, 45Ω, 100mm Micro-Coax cable, and are tested with the GSSGSSG Pin Assignment. For engineers, these parameters mean that when replacing designs, one cannot only focus on "whether it can be plugged in," but also need to control the wire diameter, impedance, cable length, termination quality, and high-speed signal integrity simultaneously.
The signal attenuation of extremely thin coaxial cables is usually related to factors such as conductor loss, dielectric loss, impedance discontinuity, connector termination, and cable length. For high-speed signals, engineering design should first ensure that the characteristic impedance of the extremely thin coaxial cable matches the system to avoid impedance突变 causing reflections; secondly, under the condition of meeting the structural installation requirements, reasonable control of the cable length is necessary because as the transmission distance increases, insertion loss usually also increases. The 82999-100B-01-D uses a 200mm length, so during the replacement production, it should be kept as consistent as possible with the original length, cable specifications, and signal topology. At the same time, if there are size deviations in the crimping, stripping, welding, or termination area, it may also cause local impedance changes, so the assembly accuracy of the connector and cable material is also an important link in reducing signal attenuation. The official I-PEX CABLINE®-CAL supports AWG38, 40, 42, 44 Micro-Coax, and provides related test data for high-speed signal integrity, indicating that the cable material and connection structure in high-speed applications need to be designed as a whole.
For engineers and purchasers who need to replace the original I-PEX cable harness, the selection of 82999-100B-01-D cannot be simply understood as "a 30Pin connector and a very thin coaxial cable." In the actual replacement, it is crucial to confirm the consistency of the CABLINE®-CAL 0.4mm Pitch interface, 30Pin specification, 20777-030T-01 connector, 40AWG Micro-Coax, 200mm cable length, and 1-1 wire position definition; at the same time, it is also necessary to confirm the characteristics such as impedance, insertion loss, return loss, and crosstalk according to the high-speed interface and signal integrity requirements of the whole machine. The official specification of CABLINE®-CAL refers to the transmission capability of 40Gbps/lane PAM3, and is applicable to high-speed application scenarios such as USB4 Gen4, Thunderbolt 5, but the actual performance that the cable harness can achieve is still related to the wire material, length, connector termination, and system PCB design, so it is recommended to carry out actual SI testing during the engineering verification stage rather than judging solely based on the theoretical speed of the connector.
If the customer's original scheme adopts I-PEX 82999-100B-01-D, it is recommended to use "Connector Model + Pin Number + Cable Specification + Cable Length + Wire Position Definition + Electrical Performance" as the core matching condition. Among them, 20777-030T-01 is a CABLINE®-CAL 30Pin Plug Housing model, and the I-PEX official materials also list it as a recommended material number for CABLINE-CAL; 82999-100B-01-D belongs to a 30Pin, 40AWG, 200mm, 1-1 structure official evaluation cable model. Our company can provide: I-PEX 82999-100B-01-D compatible cable solution, which can match and develop according to the customer's original drawings and application requirements, for cable length, wire position, connector termination, ultra-thin coaxial cable specification, and high-speed signal performance, to provide ultra-thin coaxial cable束replacement support for engineering verification, sample making, and bulk procurement. For purchasing personnel, it is recommended to provide the original model, connector material number, cable length, Pin number, and wire position definition at the same time when inquiring, in order to reduce the specification confirmation and sample verification cycle.
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