RH71280A-1.5-21/2-1703639-1 12 V / 24 V / 48 V, 12 Position, Automotive Housing for Female Terminals,Heavy Duty Sealed Connector

Product Overview

The RH71280A-1.5-21/2-1703639-1 is a high-performance, heavy-duty sealed automotive connector housing designed for female terminals. Engineered for reliability in demanding environments, this 12-position rectangular connector supports multiple voltage architectures (12V, 24V, and 48V) and is part of the AMP MCP 1.5K series. It is ideally suited for wire-to-wire applications requiring robust sealing, high current capacity, and thermal stability. Whether used in commercial vehicles, construction equipment, agricultural machinery, or electric vehicle systems, this connector delivers consistent performance under extreme conditions.

Key Features & Benefits
1. Robust Electrical Performance

Voltage Compatibility: Supports 12V, 24V, and 48V nominal voltage architectures, with a maximum operating voltage of 60 VDC. This flexibility makes it suitable for a wide range of automotive and industrial electrical systems.
High Current Rating: Each contact supports up to 20A maximum, with a contact size of 1.5K and mating tab width of 1.5 mm (0.059 in). This ensures reliable power transmission even in high-load circuits.
Circuit Application: Dedicated for power circuits, ensuring stable and efficient energy distribution.

2. Environmental Sealing & Durability

IP67 Rating: Fully sealed against dust and temporary immersion in water, making it ideal for exposed under-hood, chassis, or outdoor applications.
Wide Operating Temperature: Withstands temperatures from -40°C to +140°C (-40°F to 284°F), enabling deployment in extreme climates and high-heat engine compartments.
PBT GF30 Housing: The housing is molded from PBT with 30% glass fiber reinforcement, offering excellent mechanical strength, dimensional stability, and resistance to chemicals, moisture, and vibration.

3. Mechanical Design & Assembly

Cable Exit Angles: Supports both 90° and 180° cable exit options, providing flexibility for tight or constrained routing paths.
Connector System: Wire-to-wire configuration, with cable mount (free-hanging) installation.
Mating Alignment: Features keyed alignment to prevent incorrect mating, reducing assembly errors and improving production efficiency.
Primary Locking Feature: Locking occurs directly on the terminal, ensuring secure retention and reliable electrical contact.
Terminal Position Assurance (TPA): Not included, but the design allows for straightforward terminal insertion and removal when needed.
Strain Relief: Not integrated; external strain relief may be added depending on application requirements.

4. Dimensional Specifications

Number of Positions: 12 (arranged in 2 rows)
Centerline (Pitch): 4 mm (0.157 in)
Connector Height: 31.25 mm (1.23 in)
Product Length: 54.1 mm (2.13 in)
Product Width: 25.7 mm (1.012 in)
Color: Black
Connector & Keying Code: B
These compact dimensions allow the connector to be integrated into space-constrained assemblies while maintaining easy handling and serviceability.

Material & Compliance

Housing Material: PBT GF30 (Polybutylene Terephthalate with 30% glass fiber) – provides high heat deflection temperature, low moisture absorption, and excellent creep resistance.
Contact Type: Receptacle (female terminal housing)
Sealable: Yes – integrated sealing system prevents ingress of moisture, dust, and other contaminants.
Mixed & Hybrid Connector: No – all positions accept the same terminal type, simplifying inventory and assembly.

Applications

Thanks to its rugged construction and electrical versatility, the RH71280A-1.5-21/2-1703639-1 is suitable for a wide array of applications, including but not limited to:
Commercial vehicles (trucks, buses, trailers)
Construction & agricultural equipment (excavators, tractors, harvesters)
Electric and hybrid electric vehicles (EV/HEV low-voltage systems)
Industrial automation (power distribution modules, control cabinets)
Marine and off-road vehicles (exposed to moisture and vibration)
Battery management systems (BMS) and power distribution units (PDU)

Installation & Handling Notes

Mating Connector: Requires a corresponding male connector housing with 1.5mm tab terminals (not included).
Terminals: Use AMP MCP 1.5K series female terminals – crimp tooling recommended for consistent quality.
Cable Exit Direction: Field-configurable between 90° and 180° via housing design – no additional adapters needed.
Sealing Maintenance: Ensure the integral seal is free from damage before mating; do not exceed 140°C operating temperature to preserve seal elasticity.

Ordering & Part Number Information

Part Number: RH71280A-1.5-21/2-1703639-1
Product Category: Plastic 12 Hole
Description: 12POS, AMP MCP1.5K, REC HSG, ASSY
For bulk orders, custom cable assemblies, or value-added services (e.g., pre-loaded terminals, custom packaging), please contact our sales team.