EXPERIMENTAL INVESTIGATION OF THE CURRENT-DEPENDENT ELECTRICAL CONTACT RESISTANCE OF GOLD-PLATED FLEXIBLE PINS WITHIN CONNECTORS

Yinnan Zhang; Chao Zhang; Zhaojun Yang; Wanbin Ren

doi:10.1049/icp.2025.3729

EXPERIMENTAL INVESTIGATION OF THE CURRENT-DEPENDENT ELECTRICAL CONTACT RESISTANCE OF GOLD-PLATED FLEXIBLE PINS WITHIN CONNECTORS

Yinnan Zhang
, Chao Zhang^*
, Zhaojun Yang
, Wanbin Ren

^*Corresponding author for this work

School of Electrical Engineering and Automation, Harbin Institute of Technology
Harbin Institute of Technology
China Aero-Polytechnology Establishment

Research output: Contribution to journal › Conference article › peer-review

Abstract

For high-speed backplane connectors,it is necessary to achieve low and stable electrical contact resistance. This study experimentally investigates the electrical contact behavior of gold-plated flexible pins in connectors. Nonlinear variations in contact resistance (Rc) as a function of loading force (Fc) with a constant current are observed and analyzed. The effects of test currents (100 μA, 1 mA, and 10 mA) on the Rc-Fc characteristics are systematically compared. The results indicate that an increase in the current level can enlarge the real electrical conduction area, further reducing contact resistance. The observed decline in contact resistance is attributed to localized thermal effects induced by higher currents.

Original language	English
Pages (from-to)	1549-1554
Number of pages	6
Journal	IET Conference Proceedings
Volume	2025
Issue number	35
DOIs	https://doi.org/10.1049/icp.2025.3729
State	Published - 1 Dec 2025
Externally published	Yes
Event	15th International Conference on Quality, Reliability, Risk, Maintenance, and Safety Engineering, QR2MSE 2025 - Hohhot, China Duration: 23 Jul 2025 → 26 Jul 2025

Keywords

ELECTRICAL CONTACT RESISTANCE
GOLD-PLATED CONTACT SURFACE
HIGH-SPEED BACKPLANE CONNECTOR
THERMAL EFFECT

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10.1049/icp.2025.3729

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title = "EXPERIMENTAL INVESTIGATION OF THE CURRENT-DEPENDENT ELECTRICAL CONTACT RESISTANCE OF GOLD-PLATED FLEXIBLE PINS WITHIN CONNECTORS",

abstract = "For high-speed backplane connectors,it is necessary to achieve low and stable electrical contact resistance. This study experimentally investigates the electrical contact behavior of gold-plated flexible pins in connectors. Nonlinear variations in contact resistance (Rc) as a function of loading force (Fc) with a constant current are observed and analyzed. The effects of test currents (100 μA, 1 mA, and 10 mA) on the Rc-Fc characteristics are systematically compared. The results indicate that an increase in the current level can enlarge the real electrical conduction area, further reducing contact resistance. The observed decline in contact resistance is attributed to localized thermal effects induced by higher currents.",

keywords = "ELECTRICAL CONTACT RESISTANCE, GOLD-PLATED CONTACT SURFACE, HIGH-SPEED BACKPLANE CONNECTOR, THERMAL EFFECT",

author = "Yinnan Zhang and Chao Zhang and Zhaojun Yang and Wanbin Ren",

note = "Publisher Copyright: {\textcopyright} The Institution of Engineering \& Technology 2025.; 15th International Conference on Quality, Reliability, Risk, Maintenance, and Safety Engineering, QR2MSE 2025 ; Conference date: 23-07-2025 Through 26-07-2025",

year = "2025",

month = dec,

day = "1",

doi = "10.1049/icp.2025.3729",

language = "英语",

volume = "2025",

pages = "1549--1554",

journal = "IET Conference Proceedings",

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TY - JOUR

T1 - EXPERIMENTAL INVESTIGATION OF THE CURRENT-DEPENDENT ELECTRICAL CONTACT RESISTANCE OF GOLD-PLATED FLEXIBLE PINS WITHIN CONNECTORS

AU - Zhang, Yinnan

AU - Zhang, Chao

AU - Yang, Zhaojun

AU - Ren, Wanbin

N1 - Publisher Copyright: © The Institution of Engineering & Technology 2025.

PY - 2025/12/1

Y1 - 2025/12/1

N2 - For high-speed backplane connectors,it is necessary to achieve low and stable electrical contact resistance. This study experimentally investigates the electrical contact behavior of gold-plated flexible pins in connectors. Nonlinear variations in contact resistance (Rc) as a function of loading force (Fc) with a constant current are observed and analyzed. The effects of test currents (100 μA, 1 mA, and 10 mA) on the Rc-Fc characteristics are systematically compared. The results indicate that an increase in the current level can enlarge the real electrical conduction area, further reducing contact resistance. The observed decline in contact resistance is attributed to localized thermal effects induced by higher currents.

AB - For high-speed backplane connectors,it is necessary to achieve low and stable electrical contact resistance. This study experimentally investigates the electrical contact behavior of gold-plated flexible pins in connectors. Nonlinear variations in contact resistance (Rc) as a function of loading force (Fc) with a constant current are observed and analyzed. The effects of test currents (100 μA, 1 mA, and 10 mA) on the Rc-Fc characteristics are systematically compared. The results indicate that an increase in the current level can enlarge the real electrical conduction area, further reducing contact resistance. The observed decline in contact resistance is attributed to localized thermal effects induced by higher currents.

KW - ELECTRICAL CONTACT RESISTANCE

KW - GOLD-PLATED CONTACT SURFACE

KW - HIGH-SPEED BACKPLANE CONNECTOR

KW - THERMAL EFFECT

UR - https://www.scopus.com/pages/publications/105038515338

U2 - 10.1049/icp.2025.3729

DO - 10.1049/icp.2025.3729

M3 - 会议文章

AN - SCOPUS:105038515338

SN - 2732-4494

VL - 2025

SP - 1549

EP - 1554

JO - IET Conference Proceedings

JF - IET Conference Proceedings

IS - 35

T2 - 15th International Conference on Quality, Reliability, Risk, Maintenance, and Safety Engineering, QR2MSE 2025

Y2 - 23 July 2025 through 26 July 2025

ER -

EXPERIMENTAL INVESTIGATION OF THE CURRENT-DEPENDENT ELECTRICAL CONTACT RESISTANCE OF GOLD-PLATED FLEXIBLE PINS WITHIN CONNECTORS

Abstract

Keywords

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