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Rectangular Connectors - Spring Loaded

Image Part Number Description / PDF Quantity Rfq
3800520013

3800520013

Vitelec / Cinch Connectivity Solutions

CONN SPRING MOD 51POS SMD

17
3800520001

3800520001

Vitelec / Cinch Connectivity Solutions

CONN SPRING MOD 25POS SMD

16

Rectangular Connectors - Spring Loaded

1. Overview

Spring loaded rectangular connectors are a specialized type of electrical interconnect system featuring spring-actuated contact elements. Their design enables reliable electrical connections in applications requiring high mating cycles, vibration resistance, and precise alignment compensation. These connectors play a critical role in modern electronics by enabling robust power and signal transmission in challenging environments such as automotive testing, industrial automation, and medical equipment.

2. Main Types and Functional Classification

TypeFunctional CharacteristicsApplication Examples
Board-to-BoardSelf-aligning contacts for PCB stackingTelecom backplanes, server racks
Wire-to-BoardDaisy-chain wiring solutionsIndustrial sensors, test equipment
High-DensityMiniaturized contact arraysMedical imaging devices, UAVs
High-CurrentMulti-point contact design for >50AEVTOL charging systems, battery packs
HermeticSealed against environmental factorsAerospace avionics, underwater sensors

3. Structure and Components

Typical construction includes:

  • Contact Elements: Phosphor bronze or beryllium copper with gold plating
  • Insulation Housing: High-temperature thermoplastics (LCP, PPS)
  • Actuation Mechanism: Precision compression springs (0.5-5N force range)
  • Shielding: Optional EMI/RFI protection layers
  • Retention System: Mechanical latches or magnetic assist

4. Key Technical Specifications

ParameterTypical RangeImportance
Current Rating1-200A/contactDetermines power capacity
Contact Resistance5-20m Affects signal integrity
Dielectric Strength500-2500VACSafety isolation
Mating Cycles10k-100kService lifetime
Operating Temp-55 C to +150 CEnvironmental tolerance
Vibration Resistance20G-50GReliability in motion

5. Application Fields

Primary industries:

  • Telecommunications: 5G base stations, optical transceivers
  • Industrial Automation: Robotic arms, conveyor systems
  • Military/Aviation: Radar systems, flight control panels
  • Medical: Patient monitoring systems, MRI equipment
  • Automotive: EV battery test fixtures, autonomous driving sensors

6. Leading Manufacturers and Products

ManufacturerProduct SeriesKey Features
AmphenolBLADE SeriesModular design, 100G vibration resistance
MolexPogo Pin SystemSelf-cleaning contacts, 100k cycles
TE ConnectivityMICROCHOICE0.8mm pitch, 10GB/s data rate
SamtecSEARAYHigh-density array, IP68 rating
ITT CannonVI-LINKOptical-electrical hybrid integration

7. Selection Guidelines

Key considerations:

  1. Determine current/voltage requirements with safety margins
  2. Evaluate environmental conditions (temperature, humidity, shock)
  3. Match contact pitch with PCB layout constraints
  4. Consider termination type (solder, crimp, press-fit)
  5. Verify compliance with standards (IPC, MIL-STD)
  6. Calculate total cost of ownership including maintenance

8. Industry Trends

Emerging developments:

  • Miniaturization: 0.4mm pitch connectors for wearable devices
  • High-speed capabilities: 56Gbps differential pairs
  • Smart integration: Embedded sensors for condition monitoring
  • Eco-friendly materials: Halogen-free polymers and lead-free plating
  • Automated mating: Robotics-compatible alignment systems

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