I-PEX 82873-100B-02-D CABLINE®-CAL 40AWG/50Ω series ultra-thin coaxial cable assembly replacement

How to confirm the model of an extremely fine coaxial cable connector?

For engineers and procurement personnel, confirming the model of a very fine coaxial cable connector cannot be done solely by looking at the connector's appearance. It also requires a comprehensive judgment based on the cable product material number, pin count, pitch, connection direction, connector structure, and wire specifications. Taking I-PEX 82873-100B-02-D as an example, this product belongs to the CABLINE®-CAL 30Pin very fine coaxial cable, using a 40AWG Micro-Coaxial Cable, with a cable length of 100±5mm, and wire positions defined as 1-N. The connector model used at the cable material end is 20777-030T-01, corresponding to the CABLINE®-CAL 30Pin Plug Housing. For alternative development, it is first necessary to confirm the original cable product material number, and then cross-check through corresponding PDF drawings, BOM, and connector models to avoid incorrectly selecting the model based solely on single parameters such as "30Pin, 0.4mm pitch".

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Why is the connector model a key parameter in the replacement of extremely thin coaxial cable assemblies?

Extremely fine coaxial cable assemblies typically involve multiple stages, including connectors, extremely fine coaxial cables, shielding structures, terminal crimping, and wire positioning definition, among others. The connector model directly affects the actual assembly dimensions and mechanical fit. The I-PEX CABLINE®-CAL uses a 0.4mm pitch, horizontal insertion, and 0.73±0.07mm mating height design, and supports 30Pin and 40Pin specifications; its mechanical lock needs to be locked only after the male and female connectors are fully mated, which helps reduce the risk of semi-mating and loosening. Therefore, when engineers confirm the connector model, they should further check the Pin number, connection direction, mating height, lock structure, and matching relationship with the PCB end Receptacle. For 82873-100B-02-D, the 30Pin 20777-030T-01 cannot be mixed with the 40Pin 20777-040T-01, otherwise, even if they look similar, they may not meet the actual assembly requirements.

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When replacing the 82873-100B-02-D, what harness parameters need to be confirmed?

From the perspective of engineering applications, confirming the connector model is just the first step. When truly engaging in compatibility and replacement, it is necessary to correspond the connector with the electrical and mechanical parameters of the entire harness. The I-PEX 82873-100B-02-D uses a 30-core 40AWG, 50Ω Micro-Coaxial Cable, with a length of 100.0±5.0mm. Both ends use the CABLINE®-CAL structure, with the wire position defined as 1-N reverse correspondence, that is, one end Pin 30 corresponds to the other end Pin 1, Pin 29 corresponds to Pin 2, and so on, with Pin 1 corresponding to Pin 30. It is especially important to note that 1-N is not a 1-1 direct connection definition. If the wire position of the replacement harness is mistakenly made as 1-1, even if the connector and cable material are completely matched, it may still lead to signal channel errors. At the same time, it is also necessary to confirm performance indicators such as impedance, insertion loss, return loss, crosstalk, and shielding in combination with actual high-speed signal applications, to ensure that the replacement product not only "fits on" but also meets the whole machine's signal integrity requirements.

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Selection, compatibility, and alternative solutions reference and suggestions

For purchasing personnel, when replacing I-PEX ultra-fine coaxial cable assemblies, it is recommended to use the basic verification logic of "manufacturer part number + connector model + cable specification + cable length + pin count + wire position definition." Further confirmation of the drawing dimensions and electrical performance is also required. For this product, key information to be confirmed includes I-PEX 82873-100B-02-D, CABLINE®-CAL 30Pin, connector model 20777-030T-01, 40AWG Micro-Coax, 50Ω, 100±5mm, and 1-N wire position definition. For engineers, it is necessary to focus on verifying the mechanical match of the connector, high-speed signal integrity, and the correctness of the wire position; for purchasing personnel, it is essential to confirm the consistency of the alternative material number, specifications, bulk supply capability, and quality stability. Our company can provide: I-PEX 82873-100B-02-D compatible alternative cable assembly solutions, which can match the connector, cable, length, pin count, and wire position definition of ultra-fine coaxial cables according to the specifications of the original product, providing customers with a domestic alternative selection reference.

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Confirm the connector model before making a fine coaxial cable replacement.
Confirmation of the model for ultra-fine coaxial cable assemblies requires a shift from simply "looking at the model" to further consideration of "specifications, structure, and application." Taking I-PEX 82873-100B-02-D as an example, the connector model 20777-030T-01, 30Pin, 0.4mm Pitch, 40AWG Micro-Coax, 100±5mm, and 1-N wire position definition collectively constitute the key identification information of this cable assembly. I am【3W Electronic Components Network】Custom production of extremely fine coaxial cable assemblies and matching connectors, terminal blocks, and board-to-board connectors. If you require technical evaluation or project cooperation, please contact:Manager Zhang 18913228573 (WeChat number the same)For projects that require domestic substitution, only when the connector is matched with wire, size, wire position, and high-speed transmission performance as a whole, can reliable compatibility and substitution be truly achieved. For engineers and procurement personnel, this is also an important method to reduce selection errors and improve the efficiency of substitution verification.