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Memory Connectors - PC Cards - Adapters

Image Part Number Description / PDF Quantity Rfq
5014710900

5014710900

Woodhead - Molex

CONN ADAPTER MINI SD TO SD

0

Memory Connectors - PC Cards - Adapters

1. Overview

Memory Connectors, PC Cards, and Adapters are critical components enabling data transfer and device interoperability in electronics. Memory connectors establish electrical connections between memory modules (e.g., RAM) and PCBs. PC Cards (Personal Computer Memory Card International Association standards) are removable hardware expansion devices. Adapters bridge incompatible interfaces, ensuring compatibility across systems. These components are foundational in computing, telecommunications, and industrial systems, supporting scalability and legacy system integration.

2. Main Types & Functional Classification

Type Function & Features Application Examples
Memory Connectors Electrical bridging of memory modules to motherboards; gold-plated contacts for corrosion resistance Desktop/server RAM (DIMM), laptops (SO-DIMM)
PC Cards Hot-swappable expansion cards with standardized form factors Type I: Storage; Type II: Modems; Type III: Ruggedized storage
Adapters Protocol conversion (e.g., USB-C to HDMI); voltage level translation Peripheral connectivity, legacy hardware integration

3. Structure & Components

Memory connectors typically feature:

  • Contact pins (phosphor bronze with gold plating)
  • Insulating housing (high-temperature resistant LCP)
  • Retention mechanism (latches or friction locks)

PC Cards include:

  • 68-pin interface with EMI shielding
  • Internal circuitry for protocol handling
  • CardBus controllers (32-bit PCI interface)

Adapters integrate:

  • Multi-layer PCB with bridge chips
  • Passive components (resistors, capacitors)
  • Encapsulation materials (ABS plastic)

4. Key Technical Parameters

Parameter Description Importance
Transfer Speed Up to 6400MT/s (DIMM), 5Gbps (USB-C) Determines system bandwidth capacity
Contact Resistance 5-20m (memory connectors) Impacts signal integrity
Insertion Force 35-70N (DIMM), 10-20N (SO-DIMM) Affects mechanical durability
Operating Temperature -55 C to +85 C Ensures reliability in harsh environments
Compliance Standards JEDEC, PCMCIA, RoHS Regulatory and interoperability assurance

5. Application Fields

  • Consumer Electronics: Smartphones (microSD adapters), gaming consoles
  • Industrial Automation: PLCs, CNC machines (PC Card-based I/O expansion)
  • Medical Devices: MRI scanners (high-speed memory connectors)
  • Telecommunications: 5G base stations (PCIe card adapters)

6. Leading Manufacturers & Products

Manufacturer Product Examples Key Features
Amphenol RAM Buddy DIMM sockets 0.5 " gold contacts, 2000 insertion cycles
TE Connectivity Mini Memory Card adapters Multi-card format support (SD/CF)
StarTech.com USB-C to SATA adapter UASP support, 6Gbps transfer rates
Samtec High-speed memory connectors 100+ Gbps differential signaling capability

7. Selection Guidelines

  • Verify interface compatibility (e.g., DDR5 vs DDR4)
  • Evaluate environmental requirements (temperature, vibration)
  • Assess throughput needs vs physical size constraints
  • Consider total cost of ownership (durability + maintenance)
  • Check compliance with industry-specific certifications

8. Industry Trends

Key developments include:

  • Transition to DDR5/OPI memory interfaces (8400MT/s speeds)
  • Miniaturization (M.2 NVMe adapters replacing legacy SATA)
  • Integration of active components in passive adapters
  • Adoption of hybrid connectors supporting power + data
  • Increased focus on recyclable materials (RoHS 3 compliance)
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