【Deke Products】FL terminal connector丨4.14mm pitch, a benchmark for stable, multi-pole heavy-duty connections!
- Categories:Product News
- Author:Shenzhen Deke Electric Co., Ltd.
- Origin:https://www.de-ke.cn/
- Time of issue:2026-02-26 21:35
- Views:
【Deke Products】FL terminal connector丨4.14mm pitch, a benchmark for stable, multi-pole heavy-duty connections!
- Categories:Product News
- Author:Shenzhen Deke Electric Co., Ltd.
- Origin:https://www.de-ke.cn/
- Time of issue:2026-02-26 21:35
- Views:
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FL terminal connector
4.14mm pitch, a benchmark for stable, multi-pole heavy-duty connections!
In demanding scenarios such as industrial equipment and high-power home appliances that impose strict requirements on connection reliability and compatibility, a connector that balances load-bearing capacity and multiple specifications is essential.The FL Series Bar Connectors launched by Guangdong DEKE Electric Co., Ltd. include complete components such as terminals and multi-specification housings.All performance parameters are derived from actual testing with no false labeling. Adopting a standard 4.14mm pitch to meet diverse needs, they provide long-lasting and stable connection assurance for equipment.

Core Performance of the FL Series Unveiled
Verifiable & Authentic Parameters, More Flexible for Heavy-Duty Applications!
The robust strength of the FL Series lies in every set of traceable measured data, enabling precise matching for medium and heavy‑duty connection scenarios:
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Basic Compatibility Designed with a standard 4.14 mm pitch, covering 1–15P configurations. Fully compatible with AWG #18–#22 wires. Ensures stable crimping for both signal transmission and medium‑low power power supply, eliminating poor contact caused by mismatched wire gauges.
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Electrical Safety Rated current: 7 A–8 ARated voltage: up to 300 V AC/DCInitial contact resistance: ≤ 15 mΩ (≤ 20 mΩ for some models)Insulation resistance: ≥ 1000 MΩWithstands 1500 V AC withstand voltage test for 1 minute without breakdown or arcing. Effectively prevents electric leakage and signal attenuation in medium and heavy‑duty environments, meeting equipment requirements across various power levels.
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Environmental Resistance Stable operation over a wide temperature range: -25 °C to 85 °CAfter 96 hours of high‑temperature (105 °C ± 2 °C) and low‑temperature (-25 °C ± 2 °C) testing: no visible damage, contact resistance ≤ 20 mΩ.After 96 hours under steady humid heat (40 °C ± 2 °C, 90%–95% RH): insulation performance remains reliable, adapting to complex working conditions.

FL Core Components Analysis
Working Together to Build a Secure Connection Defense Line
(I) Terminal: The Core of Transmission, Delivering Strong Load Capacity
As the key carrier for current transmission, the terminal is made of high-conductivity phosphor bronze with tin-plated surface, featuring excellent elasticity and oxidation resistance. It maintains reliable contact even after long-term plugging and unplugging.
The tensile strength of the crimped area shows outstanding performance in actual measurement:
- AWG#18 wire: 80.1N MIN
- AWG#20 wire: 62.3N MIN
- AWG#22 wire: 48.9N MIN
It remains firmly connected without detachment under a tensile speed ≤25 mm/min, fundamentally avoiding connection loosening under medium and heavy-duty conditions.
(II) Housing: Insulation Protection, Multi‑specification Adaptation
The housing is made of nylon (PA66) material, with a flammability rating reaching UL94 V‑0, providing excellent insulation performance and mechanical strength.The product surface is free of obvious scars, dents, or cracks, with strictly controlled key dimensions:
- 4.14 mm pitch with tight tolerance
- Outline dimensions: 8.28±0.2 mm, 13.94±0.2 mm, 23.6±0.2 mm, etc.
These fit assembly requirements for different pin counts.
The housing series includes FL‑1P/R, FL‑2P/R, FL‑3P/R and multi‑row types (such as FL‑22P/R, FL‑35P/R), flexibly matching pin requirements from 1P to 15P, suitable for diverse applications from simple circuits to complex wiring.
(III) Supported by Strict FL Tests: Withstands Multiple Challenges for Durability
1. Mechanical Strength Test: Pull‑out & Vibration Resistance, Defying External Forces
Clear tensile strength standards are defined for the crimped area for different wire gauges:
- AWG#18: ≥80.1N
- AWG#20: ≥62.3N
- AWG#22: ≥48.9N
Effectively prevents terminal and wire detachment from accidental pulling.The retention force between housing and terminal is verified under an axial pull‑out force ≥40N, avoiding loosening caused by vibration or impact after insertion.
The product passes 3‑axis swept‑sine vibration testing:
- 10–55 Hz (amplitude ±1.5 mm)
- 55–500 Hz (acceleration 50 m/s²)
No damage after 2 hours of continuous testing;contact resistance stably ≤20 mΩ,signal interruption time ≤1 μs.Suitable for high‑vibration equipment such as machine tools and robots.
2. Environmental Adaptation Test: Withstanding Harsh Working Conditions
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Salt Spray Test:After 16 hours of continuous spraying with 5% sodium chloride solution,metal parts show no severe corrosion exposing base metal;only slight non‑performance‑affecting corrosion is allowed on blanking surfaces.Adaptable to humid, high‑salt outdoor or coastal environments.
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Temperature Cycle Test:Alternating cycles between −25 °C (0.5 h) and +105 °C (0.5 h) for 5 cycles.Withstand voltage and insulation performance remain unchanged after recovery,adapting to outdoor equipment with large day‑night temperature differences.
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Steady Damp Heat Test:Stored for 96 hours at 40 °C±2 °C, relative humidity 90%–95%.No appearance damage and normal electrical performance after testing,suitable for humid workshops, basements, etc.
3. Electrical & Lifetime Test: Long‑term Stability Guaranteed
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Mechanical Life:After 50 insertion/extraction cycles at 10 cycles/min,contact resistance still ≤20 mΩ,fully meeting repeated plugging for equipment maintenance and replacement.
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Temperature Rise Test:Under maximum rated current, temperature rise ≤30 °C,effectively preventing overheating and aging during long‑term operation.

FL Series Multi‑Scene Application
Empowering All Industries,The Premier Choice for Medium & Heavy‑Duty Connections
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Automation Equipment Ideal for wiring in assembly lines, small robots, and other automated equipment, adapting to long‑term, high‑frequency operation.
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Home Appliances Suitable for internal wiring in high‑power household appliances such as air conditioners, washing machines, and water heaters. Flame‑retardant materials ensure enhanced safety.
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Instruments & Meters Used for power and signal connections in testing equipment and industrial instruments, supporting multi‑pin configurations for complex wiring.
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Industrial Control Equipment Applied to wiring in PLCs, sensors, and motor drive modules, resistant to vibration and capable of operating in wide‑temperature environments.

Made by DEKE
Technological Innovation & Quality Assurance
Strict Certifications Build a Quality Defense Line and Consolidate the Foundation for Development
DEKE Electric attaches great importance to the establishment of its quality management system. The company has successively obtained the IATF 16949 international automotive quality management system certification and the ISO 9001 quality management system certification, implementing standardized control over the entire process from raw material procurement to finished product delivery.
Products have passed many international and domestic safety certifications including UL, RoHS, and REACH, ensuring stable operation in applications such as new energy charging piles and smart grids.
In 2025, with outstanding performance in key indicators including terminal insertion‑extraction life and anti‑electromagnetic interference, the company was awarded the Connector Industry Standard Leader certification, marking that its product performance has reached an internationally advanced level.
→ Details of Relevant Qualifications/Environmental Certificates (Click here to view)

Made by DEKE
High Quality • Affordable Cost • Excellent Value
For more details about our FL series terminals / connectors or to customize a dedicated connection solution, please contact Guangdong DEKE Electric Co., Ltd.Let us empower the intelligent future together with precision connection technology.

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