Netcom connector / SD card socket series

Micro SD card socket

Model: WK-3039-40

Applications

communicationcar
Micro SD card socket

Description

WK-3039-40 is a high-performance, ultra-thin Micro SD card socket. This product features a self-popping structure with a height of only 1.28mm, significantly saving PCB layout space. It is particularly suitable for portable electronic devices such as smartphones, tablet computers, and digital cameras. Its terminals are made of phosphor bronze and plated with gold, while the housing is made of stainless steel, ensuring excellent electrical connection stability, corrosion resistance, and a mechanical lifespan of up to 5000 cycles. It supports 12V voltage and hot-swapping functionality, complies with RoHS environmental standards, and is an ideal choice for embedded storage applications.

Features

  • Self-popping structure, where pressing achieves insertion locking and popping, making operation convenient.
  • With an ultra-thin design, the overall height is only 1.28mm, making it suitable for portable devices with limited space.
  • Hot-swappable, supporting safe insertion and removal of memory cards while the device is running.
  • It can withstand at least 5000 insertion and extraction cycles.
  • Compliant with the standard interface specification of Micro SD card, with 8Pin definition
  • Resistant to corrosion, with a stainless steel shell made of SUS301 and gold-plated terminals, ensuring stable connection

Specifications

shellOverall gold plating 1u", with a nickel plating layer of 50u" on the bottom
sliderPA9T black
springSUS301, L=9.80mm
pull rodSUS304-H, L=3.85mm
terminalPhosphor bronze (C5210-H), T0=0.15mm; selective gold plating on contact area 1u", with underlying nickel 80u"; gold plating on soldering area 1u"
insulatorHigh-temperature thermoplastic, LCP SZ6505HF, black, UL94V-0
rated current0.5A AC/DC
rated voltage12V AC/DC
Operating Humidity95% R.H.
contact resistance100mΩ
Operating Temperature-25℃ ~ +85℃
insulation resistance1000MΩ min. / 500VDC
insertion and removal cycles5000 times

Whitepapers