JAE Electronics ST20 Stacked 3-in-2 Card Connectors

Introduction

The JAE Electronics ST20 is a compact stacked card connector series designed for mobile and space-constrained electronic products. Its 3-in-2 arrangement provides flexible support for subscriber identity and memory-card combinations while maintaining a slim mechanical profile.

Part Description

ST20 stacked card connectors use a top-and-bottom tray layout to accommodate either a nanoSIM card plus a microSD card or two nanoSIM cards. This makes the connector suitable for devices requiring cellular connectivity, expandable storage, or dual-SIM functionality without dedicating separate board space to multiple card sockets.

The connectors feature a push-pull tray mechanism for straightforward card insertion and removal. Tray detection capability can help a host system identify whether the tray is installed, while misinsertion-prevention features improve reliability by helping prevent incorrect card or tray placement. Their slim form factor is especially useful in compact portable equipment where enclosure height and PCB area are limited.

Applications

• Smartphones
• Tablet computers
• Cellular-enabled handheld terminals
• Vehicle dash cameras
• Drones and unmanned aerial vehicles
• Portable GPS trackers
• Mobile payment terminals
• Rugged field-data collection devices
• Wireless security cameras
• Industrial handheld computers
• Portable medical monitoring devices
• IoT gateways with cellular connectivity

Industries

• Consumer electronics
• Telecommunications
• Automotive electronics
• Drone and robotics
• Security and surveillance
• Industrial automation
• Logistics and asset tracking
• Healthcare electronics
• Smart-city infrastructure
• Retail and payment systems
• Agriculture technology
• Internet of Things (IoT)

Usage Ideas

1. Dual-SIM Fleet Tracker
   Build a vehicle tracking unit with two nanoSIM options for carrier redundancy and a microSD card for local trip, sensor, and diagnostic logging.

2. Cellular Drone Camera System
   Design a drone controller or onboard communications module using a nanoSIM for live telemetry transmission and microSD storage for captured flight video.

3. Compact Dashcam Recorder
   Create a connected dashcam that uses a nanoSIM for remote alerts and cloud uploads while storing high-resolution video files on a microSD card.

Conclusion

The JAE Electronics ST20 stacked 3-in-2 card connector offers an efficient solution for products that need SIM connectivity and removable memory in a minimal footprint. With support for nanoSIM plus microSD or dual-nanoSIM arrangements, push-pull tray operation, tray detection, and misinsertion prevention, it is well suited to compact mobile, automotive, industrial, and connected-device designs.