Molex CP-3.3 Wire-to-Wire, Wire-to-Board Connectors
The Molex CP-3.3 Wire-to-Wire Connector System is designed to provide enhanced safety and protection against moisture seepage in a wide range of applications, including consumer electronics, white goods, industrial equipment, and medical devices.
One of the key features of this connector system is its full keying and color-pairing capabilities. By utilizing these features, users can easily identify and match the correct plug and receptacle housings, ensuring fool-proof mating of the wired assembly. This not only simplifies the installation process but also minimizes the risk of incorrect connections or mismatches.
In terms of configuration options, the CP-3.3 Wire-to-Wire Connector System offers both single-row and dual-row configurations. These configurations are fully polarized with color-coded housings for easy identification and compatibility. Whether it's a single-row or dual-row setup, these connectors provide reliable electrical connections that meet industry standards.
Furthermore, this connector system boasts impressive performance specifications. With a maximum rating of 500V, it can handle various voltage requirements in different applications. Additionally, it operates within a temperature range from -40°C to +105°C, making it suitable for use in extreme environments where temperature fluctuations may occur.
When it comes to current ranges, the CP-3.3 Wire-to-Wire Connector System offers flexibility depending on the configuration chosen. For single-row setups, current ranges from 2.5A to 7.5A are supported while dual-row configurations support currents ranging from 2.0A to 7.A0A.This versatility allows designers and engineers to select the appropriate connector based on their specific power requirements.

Features
- Single row configuration
- Fully polarized and color-coded plug (right, 504694) and receptacle (left, 504693) housings
- Allows multiple same-circuit-sized connectors to be used in an application
- Speeds up assembly, as the colors make it easy to identify the correct mating connector
- Reduces the cost of quality by preventing mismating during assembly
- Inertial lock on receptacle housing (504693)
- Ensures complete, low-insertion-force locking
- Provides a tactile and audible ‘click’ when mated
- Female crimped lead (50397 or 505607)
- Male crimped lead (50398 or 505608)
- Retainer (504695), provides end-to-end protection against moisture ingression into the connected assembly and moisture drainage
- Dual row configuration
- Fully polarized and color-coded plug (right, 505606) and receptacle (left, 505605) housing
- Allows multiple same-circuit-sized connectors to be used in an application
- Speeds up assembly, as the colors make it easy to identify the correct mating connector
- Reduces the cost of quality by preventing mismating during assembly
- Inertial lock on receptacle housing (505605)
- Ensures complete, low-insertion-force locking
- Provides a tactile and audible ‘click’ when mated
- Female crimped lead (50397 or 505607)
- Male crimped lead (50398 or 505608)
- TPA retainer (504695)
- Ensures terminals are fully inserted
- Offers a secondary terminal retention feature
- Housing ribs between each cavity of the mated housings
- Increase creepage and clearance distances
- Helps prevent arcing in the presence of moisture or other contaminants

Specifications
- 500V maximum rating
- Maximum current ranges
- 2.5A to 7.5A for single-row configuration
- 2.0A to 7.0A for dual-row configuration
- 20mΩ maximum contact resistance
- 1000VAC dielectric withstanding voltage for 1 minute
- 1000MΩ minimum insulation resistance
- -40°C to +105°C operating temperature range
- 30-cycle durability
- 9.8N maximum contact insertion force
- 19.6N minimum contact retention to housing
- UL 94V-0 rated, PBT housings and retainers
- Copper Alloy contacts
- 0.9µ" minimum plating
Molex CP-3.3 Connector P/N and Specs
Molex CP-3.3 Wire-to-Wire, Wire-to-Board Connector Applications
The Molex CP-3.3 Wire-to-Wire, Wire-to-Board Connector is a versatile and reliable component that serves a wide range of applications in various industries, particularly in the home appliance and consumer electronics sectors. Its robust design, high performance, and adaptability make it ideal for devices and systems where dependable electrical connections are crucial.
Home Appliances
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- Air Conditioners: The CP-3.3 connector ensures stable power and signal transmission in air conditioning units, contributing to the reliable operation of temperature control systems.
- Refrigerators: Withstanding both low and high temperatures, the connector helps ensure continuous electrical connectivity within the complex circuits of modern refrigerators.
- Microwave Ovens: In microwave ovens, this connector helps maintain consistent power and control signals, ensuring the safe and efficient heating of food.
- Washing Machines: It supports the interconnection of various internal systems, including motor controls and water level sensors, ensuring operational efficiency.
- Water Heaters: In electric water heaters, the connector provides a safe, moisture-resistant connection for temperature control and power transmission.
Vending Machines
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- The CP-3.3 connector is used in vending machines to facilitate communication between the main control unit and various subsystems, such as payment mechanisms, product dispensers, and temperature controls for refrigeration units.
Consumer Electronics
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- Fitness Equipment: The connector plays a crucial role in fitness devices, providing stable connections in treadmills, elliptical trainers, and other workout machines to maintain functionality and accurate performance monitoring.
- Home Entertainment Systems: It is used in audio and visual equipment such as home theater systems, ensuring secure connections for sound and video transmission.
- Home Office Equipment: From computers to printers and other office peripherals, this connector supports efficient power and data transfer in home office setups.
- Home Security Systems: The CP-3.3 connector can be found in security cameras, alarm systems, and monitoring devices, where reliable electrical connections are vital for safety and uninterrupted surveillance.
Medical Equipment
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- Autoclaves: In the medical field, the connector is utilized in autoclaves (sterilization machines) where it ensures stable electrical performance in high-temperature environments, critical for sterilization processes.
While the applications listed above highlight some of the more common uses for the Molex CP-3.3 Wire-to-Wire Connector, this is by no means a definitive list. The connector’s flexibility in supporting various wire sizes and its ability to handle diverse operating conditions make it suitable for many other electrical and electronic systems across different industries. Whether it's for complex machinery or everyday consumer products, the Molex CP-3.3 delivers reliable performance in challenging environments.
Support Custom Wire Harness Assembly
- Connectors series: 212209, 504693, 504694, 505605, and 505606.
- Connector circuits: 2 - 12 Pins
- Wire Gauge: 28AWG - 18AWG
- Wire Colors: Available in a wide range including white, black, red, yellow, blue, green, brown, orange, purple, grey, and more.
- Wire Length: Fully customizable to your specifications.
- Wiring Diagram: Tailor-made to meet your project needs.
- Custom type:
- Wire both ends with the same connector, same orientation
- Wire both ends with the same connector, opposite orientation
- Wire one side connector, another side open-end
- Wire one side connector, another side tinned end
- Other types
- Minimum Order: 100 pieces per order.

Customize Your Wire Harness
Send your sample or drawing/schematic for quote price→ Feedback with quotation(1~3 days) → Confirm quotation → Arrange sample you for approval→ [Make mold if needed (7 days) →Mold test] → Making samples(1~3 days)→ Samples test(Approval) → place order for Mass production(2~3 weeks)→ Quality checking→ Packing → Delivery → After Service → Repeat Order.