JAE ST20 Series: Compact nanoSIM and microSD™ Connector Saves up to 50% PCB Space
With the new ST20 Series, JAE (Japan Aviation Electronics Industry) introduces an exceptionally compact stacked-tray combo connector for nanoSIM and microSD™ cards. By stacking the cards vertically, the connector requires approximately 50% less PCB mounting area compared with the previous ST19 Series.
The ST20 Series is particularly suitable for developers of compact electronic devices where cellular connectivity and additional storage need to be integrated within a minimum PCB footprint.
Two Cards in Minimum Space
The key difference compared with conventional combo card connectors lies in its design. Instead of positioning the nanoSIM and microSD™ cards side by side, the JAE ST20 Series uses a two-level stacked-tray concept.
The cards are positioned on the upper and lower sides of a common tray. According to JAE, this reduces the required PCB mounting area by approximately 50% compared with the ST19 Series.
Especially in space-constrained devices, this creates additional room for larger batteries, sensors, wireless modules or other electronic functions.
nanoSIM + microSD™ or Dual nanoSIM
Another advantage of the ST20 Series is its flexible card configuration. Depending on the application, the connector can be used for:
- 1 × nanoSIM + 1 × microSD™
- 2 × nanoSIM
This allows a common connector platform to be used across different device variants and configurations.
Compact Dimensions of Just 2.35 × 15.2 × 15.9 mm
Despite accommodating two cards, the JAE ST20 remains extremely compact. Its dimensions are only:
2.35 × 15.2 × 15.9 mm (H × W × D)
The connector consists of two reflow-solderable components – the socket and block – which together form the card slot after PCB assembly.
No additional mechanical connection mechanism between the two components is required. This contributes to the compact design and simplifies integration into space-constrained applications.
Technical Features of the JAE ST20 Series
| Feature | JAE ST20 Series |
|---|---|
| Connector type | Stacked-Tray Combo Card Connector |
| Supported cards | nanoSIM / microSD™ |
| Configuration | nanoSIM + microSD™ or nanoSIM + nanoSIM |
| Card arrangement | Stacked / two levels |
| Operation | Push-Pull Tray |
| Dimensions | 2.35 × 15.2 × 15.9 mm (H × W × D) |
| PCB mounting area | Approx. 50% smaller than ST19 |
| Tray detection | Normally Closed Detection Switch |
| Contact design | Anti-Buckling Contact Design |
| Protection | Protection against incorrect card insertion |
| Mounting | Reflow soldering |
Designed for Compact IoT, Communication and Mobile Devices
The demand for cellular connectivity and local data storage continues to grow, even as electronic devices become increasingly compact. JAE specifically mentions smartphones, drones and dashcams as typical applications.
The ST20 concept is also attractive for a wide range of IoT and wireless applications where a nanoSIM card is required for cellular connectivity and a microSD™ card for local data storage.
Typical applications include:
IoT Devices · Wireless Devices · Drones · Dashcams · Telematics · Mobile Communication Devices · Compact Embedded Systems
Less PCB Space – More Freedom in Device Design
With the ST20 Series, JAE addresses a key challenge in modern electronics development: devices are expected to become smaller or integrate more functionality, while communication, storage and power supply functions compete for increasingly limited PCB space.
The combination of stacked-tray technology, approximately 50% reduced PCB mounting area and flexible nanoSIM/microSD™ or Dual-nanoSIM configuration makes the ST20 Series particularly attractive for new compact device designs.
JAE ST20 from wittig ELECTRONIC
As a partner for electronic components, wittig ELECTRONIC supports engineers and purchasing professionals in selecting suitable JAE connectors and card connector solutions.
Are you planning a new design using nanoSIM, microSD™ or Dual nanoSIM?
Contact us. We can support you with technical information, product selection, samples and project inquiries for the JAE ST20 Series.