The 2.54mm black shorting cap with long handle is a quick circuit short‑connection component specially designed for 2.54mm pitch pin headers. It features a long‑handle press structure and a black insulating housing, with the advantages of easy plugging, stable connection and insulation protection. It is widely used in PCB circuit debugging, GPIO port configuration, industrial control equipment jumper settings and other scenarios, serving as an efficient basic component for circuit signal conduction and function switching.
I. Company Introduction
We are a high‑tech enterprise specializing in the R&D, production and sales of precision connectors and supporting components. With more than 10 years of experience in pin headers, socket headers, shorting caps and connector accessories, we have built a complete industrial chain covering precision mold development, injection molding, automatic assembly and reliability testing.
Equipped with professional equipment such as insertion‑extraction force testers, insulation resistance testers and thermal shock test chambers, our monthly capacity of 2.54mm black long‑handle shorting caps exceeds 50 million pieces, enabling us to efficiently undertake mass orders and personalized customization.
We strictly implement the ISO9001 quality management system, and our products comply with RoHS, REACH and other international environmental standards. Each batch undergoes full inspection including contact resistance, insulation performance and insertion‑extraction durability, with complete quality traceability records.
With highly adaptable and reliable products, we provide cost‑effective connection solutions for customers in industrial control, consumer electronics, smart devices and communication equipment, winning long‑term trust from domestic and overseas markets.
II. Core Product Features
Precise 2.54mm Pitch, Perfectly Fits Standard Pin Headers
The internal spring pitch is precisely controlled at 2.54mm, fully compatible with mainstream single‑row and dual‑row 2.54mm pin headers. It can stably lock between 2‑pin, 3‑pin and other pin headers to achieve fast circuit short‑connection.
The spring is made of high‑elasticity phosphor bronze with stamping precision ≤±0.02mm, ensuring tight contact without looseness or falling off, guaranteeing stable signal transmission.
Long‑Handle Press Design, Easy & Efficient Operation
The extended handle is about 30% longer than standard versions, enabling easy manual operation even on densely populated PCBs, greatly improving efficiency in circuit debugging and jumper configuration.
The handle surface has anti‑slip texture for stable grip. The even pressure distribution avoids spring deformation or pin damage, suitable for mass rapid jumper operations.
Black Insulating Housing, Excellent Protection
The housing is made of UL94 V‑0 flame‑retardant engineering plastic, with insulation resistance ≥1000MΩ and withstand voltage ≥AC500V, effectively isolating short‑circuit points and preventing electric leakage and short‑circuit risks.
The black housing provides good light shielding to avoid interference with photosensitive components and helps quickly identify short‑circuit positions for easy maintenance. All edges are rounded with no burrs to protect PCBs and operators.
High‑Elasticity Wear‑Resistant Spring, High Durability
The internal conductive spring uses phosphor bronze with tin plating, featuring excellent conductivity and contact resistance ≤20mΩ for low signal loss. The uniform coating delivers outstanding oxidation and wear resistance for long‑term use in harsh environments.
With excellent elastic recovery, the insertion‑extraction life exceeds 5000 cycles, maintaining stable clamping force after repeated use for long‑term equipment debugging and maintenance.
Lightweight & Compact Structure for Dense Layouts
The product is compact with a thickness of only 1.2mm, ideal for densely populated PCBs without occupying excessive space, suitable for industrial control boards, smart hardware control boards and other high‑density circuit layouts.
Stackable mounting (selected models) supports multi‑layer short‑connection on the same pin header, enhancing circuit configuration flexibility.
III. Product Advantages
Strong Adaptability & Wide Compatibility
Standard 2.54mm pitch fits all same‑spec pin headers without brand‑specific customization, greatly reducing procurement and inventory costs. The long‑handle design supports manual and simple tool operation for improved efficiency.
Safe & Reliable
Flame‑retardant insulating housing and low contact resistance springs ensure stable circuit conduction and eliminate risks of electric leakage and short‑circuit, meeting industrial‑grade safety standards.
High Cost‑Performance & Stable Supply
Standard mass production lowers unit cost. Regular models are in sufficient stock with short lead times. Tape‑and‑reel packaging supports automatic production lines for large‑batch delivery.
Flexible Customization & Fast Response
We support customization of housing color, handle length, spring material and other parameters. High‑temperature resistant (-40℃~125℃) or anti‑static versions are available for special environments.
Regular custom samples are delivered within 2 working days, with controllable mass production lead times.
IV. Product Applications
Industrial Control
Used in PLC control cabinets, industrial motherboards, servo drives for GPIO port configuration, circuit parameter debugging and mode switching.
Smart Hardware
Applied to MCU development boards, Raspberry Pi expansion boards, sensor modules for circuit jumpers, rapid function verification and prototype debugging.
Communication Equipment
Used in routers, switches and base stations for port signal short‑circuit testing and circuit path configuration to ensure stable communication.
Consumer Electronics
Suitable for smart home control boards, audio amplifier boards for function module activation and mode switching.
V. FAQ
Q1: Can this long‑handle shorting cap fit dual‑row 2.54mm pin headers?
A1: Yes. The standard version fits any two adjacent pins of dual‑row pin headers. We also provide dedicated dual‑row shorting caps to short corresponding pins simultaneously for various circuit requirements.
Q2: Does the spring deform easily during insertion and extraction?
A2: No. The internal spring is made of high‑elasticity phosphor bronze with optimized mechanical structure. It will not deform under normal operation. Please avoid violent clamping with tools such as needle‑nose pliers to prevent damage.
Q3: Is anti‑static packaging available?
A3: Yes. For electrostatic‑sensitive applications, we provide anti‑static bags or anti‑static tape‑and‑reel packaging to protect products from ESD damage during transportation and storage, meeting electronic manufacturing ESD requirements.
