Type：connector，adapter
Spec: 14 pin
IP rating: IP67
Material: plastic
Terminal:621-1.5B
The RH71450C-1.8-21/173852-1 is a high-performance 14-pin automotive connector designed specifically for female terminals, featuring IP67 waterproof protection and PCB mounting capability. This connector falls under the Plastic 14 Hole category and represents a significant advancement in wire-to-board interconnect technology. Whether you are designing automotive electronic control units, industrial sensors, marine equipment, or outdoor lighting systems, this connector delivers reliable sealing performance, secure contact retention, and ease of assembly.
One of the standout features of this connector is its IP67 ingress protection rating. This means the connector is completely dust-tight (6) and can withstand immersion in water up to 1 meter deep for 30 minutes (7). The IP67 rating makes this connector ideal for applications exposed to rain, washdowns, splashes, condensation, or temporary submersion. Common use cases include automotive engine compartments, door modules, exterior lighting, electric vehicle battery packs, industrial control cabinets, and outdoor communication equipment. The waterproof sealing is achieved through integrated silicone seals that prevent moisture and contaminants from reaching the terminals.
The connector features 14 positions arranged with contacts spaced at a 2.5 mm centerline. This fine pitch allows for high circuit density on the PCB, saving valuable board space while still providing adequate creepage and clearance for 12V automotive signals and low-power circuits. The compact 14-pin layout is ideal for applications requiring multiple signal connections in a small footprint, such as sensor interfaces, actuator controls, and communication buses.
This connector is designed to work with 621-1.5B terminals. These female terminals feature a 1.5mm contact size, providing reliable electrical conductivity and mechanical retention. The terminals are inserted into the plug housing, where they are secured by a double-lock mechanism. Using the recommended 621-1.5B terminals ensures proper fit, insertion force, and long-term reliability.
The contacting point of each receptacle contact is designed to be protected. This means the critical electrical interface is shielded from physical damage during handling, assembly, and mating. Protected contacts reduce the risk of bent or deformed terminals, which can lead to intermittent connections or complete circuit failure. This feature is particularly valuable in high-volume manufacturing environments where connectors are handled by automated equipment or manual assembly lines.
The connector housing is manufactured from high-quality plastic material that provides excellent dimensional stability, flame retardancy, and resistance to automotive fluids such as oil, grease, and mild solvents. The plastic housing is lightweight yet durable, capable of withstanding the vibration and thermal demands of automotive environments. The integrated seals are typically made of silicone rubber, which remains flexible across the operating temperature range.
The RH71450C-1.8-21 is designed to operate reliably across a wide temperature range. Based on the terminal and housing materials, the connector typically supports -40°C to 105°C or higher, making it suitable for under-hood and outdoor applications. The IP67 seal maintains its effectiveness across this range, ensuring consistent waterproof protection.
This connector is ideal for:
Automotive electronic control units (ECUs)
Engine control modules
Transmission control units
Door module electronics
Exterior lighting (headlamps, tail lamps, fog lights)
Electric vehicle battery management systems (BMS)
Industrial sensors and actuators
Marine electronics
Outdoor LED lighting
HVAC control boards
Robotics and automation equipment
| Features | Contacts are spaced at 2.5 mm centerline. |
| Connectors are easy to handle. | |
| Connectors consist of plug housings, receptacle contacts for wire termination, and cap housing assemblies for horizontal and vertical mountings on PC boards. | |
| The contacting point of a receptacle contact is designed to be protected. | |
| The plug housings are provided with a double-lock mechanism integrated into the body, which ensures complete contact insertions into housings. | |
| The cap housing assemblies of 36, 48, 64 positions of horizontal board mounting types are also available with hybrid styles to accept signal circuits with .040 series and power circuits with .070. |
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