| Product Specification

Molex Quad-Row Board-to-Board Connectors

A miniature board-to-board connector for space-constrained applications making electronic circuit designs more robust and efficient.


Connector Pitch0.175mm
Current Rating3 A
Voltage Rating50 V
Insulation Resistance100 M Ohm
Connector Width2.0 mm
ApplicationsTablet PCs, Smartphones, Patient Monitoring Systems, Drones, Unmanned Vehicles, IoT, Smart Home devices.


It's the world's most miniature board-to-board connector designed for space-constrained applications like wearable devices, smartphones, sensors, IoT devices, and more. The connector features high current and voltage ratings for its size, featuring a staggered pin layout with four rows. Designed for compact applications, the Molex Quad-Row Board-to-Board Connector can save up to 30% space on printed circuit boards, making it a suitable option for miniature electronic circuits.

Powerful Features for a Miniature Board-to-Board Connector

Even though the board has a compact size with a width of just 2.00 mm and a mated height of 0.6 mm, it boasts powerful electrical specifications featuring an insulation resistance of up to 100 MOhms. It can withstand a dielectric voltage of up to 250 Volts and has a relatively high current rating of 3 Amperes. The pins can bear up to 50 Volts, and the signal contact resistance is 30 milliohms.

These robust features make this connector a valuable product for many applications that might involve such magnitudes of currents and voltages. For instance, it can be a reliable option for drones that typically have high current-consuming motors. Likewise, its miniature size makes it a suited option for microelectronic circuits like IoT devices, smart home applications, smartphones, tablet PCs, and similar circuits.

Other than providing competitive ratings, the board-to-board connector also features robust physical features. It has a copper alloy contact with gold-plated solder tail area and contact area. Moreover, the underplating consists of Nickel plating. An LCP UL94 V-0 housing enables the connector to withstand extreme temperatures ranging from -40 to +85 degrees Celsius.  

Performance-Oriented Design Addressing a Wide Range of Applications

The Molex Quad-Row Board-to-Board Connector has a performance-centric design. It can be easily integrated with PCBs and features an inset-molded and armored nail design to provide additional protection in the interior cover. It also makes the connector more robust and flexible for a variety of electronic applications. 

Hence, the connector can cater to a wide range of applications like therapeutic equipment, surgical equipment, and patient monitoring systems. Its miniature size makes it more convenient for designers to connect multiple boards and save space on PCBs.

Likewise, the connector is quite handy for tech gadgets that tend to experience abrupt and severe movement like shaking, rotating, dropping, etc. The connector is tightly fixed inside such devices, and it ensures that the connected boards don't loosen up either. Hence, it's a suitable option for smartphones, PC tablets, VR and AR headsets, etc.

Moreover, thanks to its current handling capability, the connector also provides useful applications in unmanned vehicles, drones, aircraft, and avionics systems.


Mouser Electronics [Internet]

Mouser Electronics [Internet]


digital fabricationflexible electronicswearable

Continue Reading

The rigid, flex and rigid-flex PCBs are all types of printed circuit boards. The rigid PCB is the traditional board and the base from which the other two variations came about, in response to industry and market needs. Flex PCBs introduced versatility to PCB fabrication and rigid-flex combines both for increased performance. Learn more about these board types, their benefits, disadvantages, and applications in this article.

Printed Circuit Boards: Differences Between Rigid, Flex, and Rigid-Flex PCBs

Cavitation dispersion process improves the properties of materials used in additive manufacturing of circuits. You will learn how one can control hydrodynamic cavitation to produce unique dispersions, formulated inks & pastes, high aspect ratio nanoparticle & ‘2D’ filler particle masterbatches.

Cavitation dispersion process: how it works and how it improves properties of printed materials

Tapis Magique is a pressure-sensitive, knitted electronic textile carpet that generates 3D sensor data based on body gestures and drives an immersive sonic environment in real time.

A choreomusical e-textile interactive carpet