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Select all	Attribute	Value
	Brand	3M
	Product Type	Flat Cable
	Cable Type	Round
	Pitch	1.27mm
	Voltage	300V
	American Wire Gauge	28AWG
	Number of Conductors	9
	Conductor Type	Round
	Series	3659
	Jacket Material	Polyvinyl Chloride
	Standards/Approvals	RoHS
	Hi-Flex	No
	Jacket Colour	Black
	Core Strands	7
	Fire Behaviour	VW-1
	Conductor Material	Tin Plated Copper
	Minimum Operating Temperature	-20°C
	Maximum Operating Temperature	80°C

	Select all
	Brand 3M
	Product Type Flat Cable
	Cable Type Round
	Pitch 1.27mm
	Voltage 300V
	American Wire Gauge 28AWG
	Number of Conductors 9
	Conductor Type Round
	Series 3659
	Jacket Material Polyvinyl Chloride
	Standards/Approvals RoHS
	Hi-Flex No
	Jacket Colour Black
	Core Strands 7
	Fire Behaviour VW-1
	Conductor Material Tin Plated Copper
	Minimum Operating Temperature -20°C
	Maximum Operating Temperature 80°C

Datasheet - 3659/09

RoHS Status: Exempt

COO (Country of Origin):: US

3M 3659 Series Flat Cable, 9 Conductors, 1.27mm Pitch - 3659/09

This flat cable provides multi-conductor connectivity for internal electronic and automation wiring, delivering a Compact ribbon-style solution for signal and low-voltage power distribution. It is intended for installations where organised, parallel conductor routing and compatibility with pitch-mated connectors are required, and it operates within common equipment temperature ranges.

Features and Benefits:

• 9 conductors enable consolidated wiring and simplified routing
• 28AWG tin-plated copper minimises contact resistance and corrosion
• 1.27mm pitch supports standard IDC connector mating
• PVC jacket with VW-1 rating offers flame resistance in confined spaces
• Rated to 300V for typical low-voltage control and signal circuits
• Operates between -20°C and 80°C for varied indoor environments

Applications

• Suitable for internal wiring in control panels and enclosures
• Ideal for ribbon-to-board connector assemblies on devices
• Used with automation harnesses for Compact signal distribution
• Can be used for interconnects in electrical test rigs and fixtures
• Used for cable runs in production machinery requiring organised conductors

How are the individual conductors constructed to handle flexing?

Each conductor is formed from seven fine strands of tin-plated copper to provide some flexibility while maintaining conductivity.

What insulation and sheathing materials protect against abrasion and heat?

Conductors are insulated and enveloped in a black polyvinyl chloride jacket selected for mechanical protection and thermal performance up to its maximum operating temperature.

Is the cable suitable for substitution where high-flex continuous motion is required?

It is not specified as a high-flex variant, so it is more appropriate for stationary or limited-movement internal wiring rather than continuous-flex applications.

Which safety or material restrictions govern its use in assemblies?

The construction meets RoHS requirements, restricting certain hazardous substances in component materials.

How does the cable’s geometry affect connector compatibility?

The flat arrangement with 1.27mm conductor spacing aligns with IDC-style connector pitches commonly used in electronics.

3M 3659 Series Flat Cable, Round, 1.27 mm Pitch, 9

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