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RAST 2.5 IDC Connector with IDT Technology | HRB Connector M728X

HRB RAST 2.5 IDC connectors are designed for compact and reliable wire-to-board connections in household appliances, industrial electronics, and smart control systems.
Featuring advanced Insulation Displacement Technology (IDT), the M728X series enables fast and efficient wire termination without stripping or crimping, helping reduce assembly time and improve production consistency.
With standardized RAST 2.5 keying structures and secure locking mechanisms, these connectors effectively prevent mismating and ensure stable electrical performance in demanding applications.
The compact design, reliable signal transmission, and flexible coding options make HRB RAST 2.5 connectors ideal for modern electronic systems requiring safe, durable, and space-saving connectivity solutions.

Availability:
Quantity:
  • M728X

  • HRB

  • 8536909000

HRB Coding Description&Mating Interface

Series

Pos. No.

Contact Pitch

Description

Mating with

M7280

2-20pin

2.5mm

RAST 2.5 connector for indirect mating, insulation

displacement technology (IDT), with keying rib

M7230

M7268

M7281

3-19pin

5.0mm

RAST 2.5 connector for indirect mating, insulation

displacement technology (IDT), with keying rib

M7264

M7284

2-20pin

2.5mm

RAST 2.5 connector for direct mating, insulation displacement technology (IDT), alternatively with or without keying rib and closed sides, for individual conductors

PCB

M7285

3-19pin

5.0mm

RAST 2.5 connector for direct mating, insulation displacement technology (IDT), alternatively with or without keying rib and closed sides, for individual conductors

PCB

M7286

2-20pin

2.5mm

RAST 2.5 connector for direct mating, insulation displacement technology (IDT), with locking on printed circuit board by means of lateral locking hooks, with keying rib, for individual conductors.

PCB

M7287

3-19pin

5.0mm

RAST 2.5 connector for direct mating, insulation displacement technology (IDT), with locking on printed circuit board by means of lateral locking hooks, with keying rib, for individual conductors

PCB

M7288

2-20pin

2.5mm

RAST 2.5 connector for direct mating, insulation displacement technology (IDT), with locking on printed circuit board by means of locking hooks, alternatively with or without keying rib and closed sides, for individual conductors

PCB

M7289

3-19pin

5.0mm

RAST 2.5 connector for direct mating, insulation displacement technology (IDT), with locking on printed circuit board by means of locking hooks, alternatively with or without keying rib and closed sides, for individual conductors

PCB

M7290

2-20pin

2.5mm

RAST 2.5 connector for direct mating, insulation displacement technology (IDT), with locking on printed circuit board by means of locking hooks, alternatively with or without keying rib and closed sides, for individual conductors

PCB

M7291

3-19pin

5.0mm

RAST 2.5 connector for direct mating, insulation displacement technology (IDT), with locking on printed circuit board by means of locking hooks, alternatively with or without keying rib and closed sides, for individual conductors

PCB

Advantages of IDC Technology

  • Fast and efficient cable termination

  • Reduced assembly errors

  • Stable and reliable electrical contact

  • Simplified wiring harness design

  • Lower labor and production costs

  • Improved connection consistency

  • High durability during transportation and installation

Product Features

  • RAST 2.5 standardized interface

  • Reliable IDT wire termination

  • Compact wire-to-board design

  • Secure locking and polarization options

  • Fast assembly and reduced labor cost

  • Stable electrical performance

  • Flexible coding configurations

  • Suitable for automated production

Compliance

  • EU RoHS Directive(EU) 2015/863 amending Annex II to Directive 2011/65/EU

  • End-of Life Vehicles Directive(2000/53/EC)

  • AfPS GS 2019: 01 PAK-Polycylic Aromatic Hydrocarbons(PAHs)

  • European Regulation POPs (EU) 2019/1021

  • European Regulation POPs (EU) 2024/2570

  • European Regulation POPs (EU) 2025/718

  • European Regulation POPs (EU) 2023/1608

  • European Regulation POPs (EU) 2019/1021

  • European Regulation POPs (EU) 2025/843

  • European Regulation POPs (EU) 2025/1930

  • Regulation (EC) Np 1907/2006 concerning the REACHUS California Proposition 65

Product certificates

Safety approvals&certification: VDE, UL, cUL

UL Flammability Rating: UL 94V-0


Typical Applications

  • Home appliances and washing machines

  • Industrial control systems

  • Automotive electronic modules

  • Smart home devices

  • Power supply equipment

  • Commercial appliance systems

  • Office automation equipment

  • Communication and networking devices


Rated Current
3A AC DC
Rated Voltage
32V AC DC
250V AC DC
Operating temperature
-40˚C ~ +120˚C
Contact resistance
10mΩ max.
Insulation resistance
1000MΩ. min.
Withstand voltage
1400V AC/minute
Material
Housing: Nylon 66 UL94V-0
Terminal: Phosphor bronze
Terminal finish
Tin plated
Silver plated
Gold plated
Wire range
AWG 24 to 22(0.22-0.35mm²)
GWT
750˚C

Q: Why Choose RAST 2.5 & RAST 5.0?

A: Dual Pitch Flexibility: RAST 2.5 for compact, low-to-medium power; RAST 5.0 for high-current, rugged applications.

High Efficiency: HRB connectors feature IDC termination that eliminates wire stripping and crimping, cutting assembly time by 50%+ for automated lines.

Proven Reliability: 4-point contact design, glow-wire compliance, and positive locking ensure long-term performance in extreme conditions.

Global Standardization: Interchangeable with RAST-compliant connectors from leading manufacturers, reducing supply chain risks.

From compact smart home devices to heavy-duty industrial machinery, RAST 2.5 and RAST 5.0 connectors deliver unmatched versatility, reliability, and cost-efficiency for modern electronic design.


Q: What is the difference between RAST 2.5 and RAST 5.0 connectors?

A: The main difference lies in pitch size and current rating. RAST 2.5 adopts 2.5mm compact pitch for space-saving and low to medium power connection; RAST 5.0 features 5.0mm pitch, suitable for high-current and high-power applications. Both follow unified industry standard structure with foolproof mating and locking design.


Q: What are the main application scenarios of RAST series connectors?

A: They are widely used in household white goods, smart home devices, HVAC systems, building automation, automotive interior electronics, industrial control panels and power supply equipment, covering wire-to-board, board-to-board and wire-to-wire connection needs.


Q: Are RAST connectors resistant to high temperature and vibration?

A: Definitely. The series adopts high-quality insulation materials and optimized structural design, with excellent temperature tolerance and anti-vibration performance, stable for long-term operation in household, HVAC and automotive harsh working environments.


Q: Does HRB RAST series support IDC termination?

A: Yes. HRB RAST 2.5 and RAST 5.0 connectors support professional IDC termination technology, which omits wire stripping and crimping procedures, greatly improving production efficiency and suitable for automated mass assembly lines.

Q: Do RAST 2.5 and RAST 5.0 have anti-misinsertion function?

A: Yes. Built-in polarization and keying structure effectively prevent mismating. Equipped with secure locking mechanism to avoid loose connection caused by vibration, ensuring connection stability and safety.

Q: Can HRB RAST series replace conventional standard connectors?

A: Yes. HRB RAST 2.5 and RAST 5.0 follow universal industry standard dimensions and installation specifications, with good compatibility, which can perfectly replace conventional standard interconnect components and reduce procurement costs.


Q: What wiring methods are available for RAST connectors?

A: It supports IDC insulation displacement connection and traditional crimping wiring methods, flexible for different production processes, manual assembly and automatic assembly lines are both applicable.


Q: What is the packaging method of RAST 2.5 IDC Connector M728X? 

A: Our RAST 2.5 IDC connectors adopt standard reel packaging suitable for automatic SMT mounting. 




RAST 2.5 & RAST 5.0 Connectors: Core Application Fields

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