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TE Connectivity AMP Connectors 3-644893-3 — Pin Headers

3-644893-3 TE Connectivity CST-100 Header 3 Pos 2.54 mm

MPN3-644893-3
Active

TE Connectivity AMP Connectors CST-100 series, 3-644893-3, Board to Cable/Wire header, 3 positions, 0.100" (2.54 mm) pitch, single row, shrouded - 4 wall, friction lock, through-hole solder, tin-plated male pins, UL94 V-0, ROHS3 compliant.

$1.0000Ref. price · indicative, final on quote
RoHSROHS3 Compliant
SeriesCST-100
Source DocumentedChannel stated on listing & quote
Condition PhotosReal unit photos / video on request
WhatsApp AnswersFast human replies for stock & sourcing questions
Worldwide DispatchDHL/FedEx — transit quoted per order
Independent supplier — new & surplus connector stock· Listing updated Aug 2026

Specifications

3-644893-3 key specifications
ParameterValue
SeriesCST-100
TypeMale Pin
MountingThrough Hole
Connector typeHeader
Fastening typeFriction Lock
Voltage rating250VAC
Current ratingVaries by Wire Gauge
Operating temperature-55°C ~ 105°C
Contact materialCopper Alloy
Insulation colorBlack
Insulation height0.410\" (10.41mm)
Insulation materialPolyester

All specifications

3-644893-3 additional specifications
ParameterValue
Material flammability ratingUL94 V-0
StyleBoard to Cable/Wire
PackageBulk
FeaturesBoard Guide
ShroudingShrouded - 4 Wall
TerminationSolder
ApplicationsGeneral Purpose, Lighting
Contact shapeSquare
Rows1
Pitch0.100\" (2.54mm)
Positions3
Contact finish - postTin
Contact length - post0.140\" (3.56mm)
Overall contact length0.520\" (13.21mm)
Contact finish - matingTin
Contact length - mating0.280\" (7.11mm)

Product details

This is a workhorse part for control boards, LED lighting drivers, and general-purpose signal or low-power distribution.

Pitch, positions, and board footprint

The single row keeps the header narrow — useful for compact PCBs where board-edge real estate is tight. The header loads all 3 positions (no skipped pins). The mating pin length is 0.280" (7.11 mm), which clears the shroud height of 0.410" (10.41 mm).

Current, voltage, and temperature range

The part is ROHS3 compliant, with no lead or restricted substances — ready for global shipping.

Frequently asked questions

Is 3-644893-3 RoHS compliant?

Yes, it is ROHS3 compliant — no lead, mercury, cadmium, or other restricted substances above the threshold limits.

What mates with 3-644893-3?

The friction lock requires a matching housing with a lock ramp — check the receptacle's fastening type.