Key fetures

• Wire gauge range: 16–22 AWG (1.31–0.324 mm² cross-sectional area)

• Available cavity layouts: 8, 14, 23 and 35 positions

• Wire-to-board mounting design for PCB assembly

• Rectangular thermoplastic housing construction

• Mating secured by integrated locking latches

• Built-in wedge lock ensures full terminal seating and boosts terminal retention force

• Optional accessories: cable strain relief, CPA (Connector Position Assurance) locks

• Header Type :Fully Shrouded 

• Connector & Contact Terminates To :Printed Circuit Board

Product Type Features

• Connector Shape :Rectangular 

• Mixed & Hybrid Connector : No 

• Connector & Housing Type :Housing for Female Terminals, PCB header

• Sealable :Yes 

• Primary Locking Feature : Integrated in Housing 

• Connector System :Wire-to-Board

• Connector & Contact Terminates To : Wire & Cable

• Number of Positions : 8, 14, 23, 35

• Number of Rows : 3

• Contact Type : Socket

• Mating Alignment Type : Keyed 

• Terminal Position Assurance :Yes 

• Strain Relief :Without 

• Connector Mounting Type :Cable Mount (Free-Hanging)

• Row-to-Row Spacing : 4 mm [ .157 in ]

• Circuit Application : Power
  

Exploded views

Receptacle housing

Vertical PCB Header

Right Angle PCB Header

Q1: What is the full name of HRB M4021, M4022 series connector?

A1: It is a 4.0mm 3-row waterproof pcb header, 3-row layout with 4.0mm row spacing, fully sealed structure to reach IP69K waterproof grade, designed for wire-to-board connection.

Q2: Does M4021 supply right angle wire to board connector automotive models?

A2: Yes. We provide straight and right-angle versions of the right angle wire to board connector automotive type under M4021 series. The right-angle PCB pin design saves installation space for automotive control modules, motorcycle ECU and vehicle sensors.

Q3: Where can I download M4021 series waterproof connector datasheet?

A3: You can get the M4021 series waterproof connector datasheet by sending an inquiry to our sales team. The datasheet includes complete dimensional drawings, electrical parameters, waterproof test standards, pin layouts and assembly explosion diagrams for your design reference.

Q4: Is the 4.0mm pitch sealed PCB connector for EV available in HRB M4021 series?

A4: Absolutely. Our 4.0mm pitch sealed PCB connector for EV (M4021 series) is widely used for new energy vehicles, battery management systems, EV charging auxiliary modules and marine electrical equipment. The sealed structure resists dust, water splash and vibration in harsh EV working environments.

Q5: What waterproof rating does this 4.0mm double row PCB header reach?

A5: The M4021 4.0mm double row waterproof pcb header passes waterproof and dustproof test. Integrated silicone gasket and single-hole wire seals prevent liquid and dust from entering the contact area.

Q6: What applications fit the right angle wire to board connector?

A6: The right angle wire to board connector automotive variant is ideal for car body control units, automotive cameras, electric two-wheelers, agricultural machinery, as well as new energy EV equipment.

Q7: Can I customize pin counts for the 4.0mm pitch sealed PCB connector for EV?

A7: Yes. Our 4.0mm pitch sealed PCB connector for EV supports custom pin positions from 8P to 35P, with optional housing colors and terminal plating thickness to match your EV project requirements.

Q8: Does the M4021 datasheet contain automotive performance test data?

A8: The official M4021 series waterproof connector datasheet includes automotive-grade test indicators: temperature cycle, vibration resistance, salt spray test and dielectric withstand voltage data, which meets automotive and EV industry certification demands.

Q: What application scenarios is the M4021, M4022 series 4.0mm pitch sealed PCB connector for EV suitable for?

A: Our 4.0mm 3-row waterproof pcb header, also available as the right angle/vertocal wire to board connector automotive, is engineered for electrical applications on engines, transmissions, under the hood, power control units, bulkheads, chassis, or inside cabs of heavy-duty vehicles. You can request the complete M4021 series waterproof connector datasheet from our sales team to view detailed parameters for EV, automotive and industrial powertrain projects.