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TE Connectivity AMP Connectors 3-644456-2 — Pin Headers

3-644456-2 TE Connectivity MTA-100 Header 2-Pin 2.54mm Tin

MPN3-644456-2
Active

TE Connectivity AMP Connectors MTA-100 series, 3-644456-2: unshrouded single-row header, 2 positions, 0.100" (2.54mm) pitch, through-hole solder termination, tin-plated contacts, UL94 V-0 thermoplastic housing, natural color.

$0.2000Ref. price · indicative, final on quote
RoHSROHS3 Compliant
SeriesMTA-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 China distributor & sourcing agent· Listing updated Aug 2026

Specifications

3-644456-2 key specifications
ParameterValue
SeriesMTA-100
TypeMale Pin
MountingThrough Hole
Connector typeHeader
Voltage rating250VAC
Current ratingVaries by Wire Gauge
Operating temperature-55°C ~ 105°C
Contact materialCopper Alloy
Insulation colorNatural
Insulation height0.100\" (2.54mm)
Insulation materialThermoplastic
Material flammability ratingUL94 V-0

All specifications

3-644456-2 additional specifications
ParameterValue
StyleBoard to Cable/Wire
PackageBulk
ShroudingUnshrouded
TerminationSolder
ApplicationsGeneral Purpose
Contact shapeSquare
Rows1
Pitch0.100\" (2.54mm)
Positions2
Contact finish - postTin
Contact length - post0.110\" (2.79mm)
Overall contact length0.505\" (12.83mm)
Contact finish - matingTin
Contact length - mating0.295\" (7.49mm)
Contact finish thickness - post150.0µin (3.81µm)
Contact finish thickness - mating150.0µin (3.81µm)

Product details

0.100" pitch, 2-position unshrouded header for MTA-100 IDC receptacles

The 150 µinch thickness is well above flash tin — it resists fretting corrosion better than thinner tin layers, which matters in applications where the connector sees thermal cycling or vibration.

Active production — no replacement on record

Sourced through independent distribution against the BOM quantity.

Board-to-cable/wire termination — solder tail length 0.110"

The header terminates to the PCB via through-hole solder. The mating side is unshrouded — the pins are exposed. The mating receptacle (MTA-100 IDC, sold separately) latches onto the pins; the header itself has no locking feature.

Frequently asked questions

Is 3-644456-2 RoHS compliant?

Yes, the part is ROHS3 compliant per the manufacturer's listing.

Can 3-644456-2 be used for wire-to-board applications?

Yes, the style is Board to Cable/Wire. It mates with an MTA-100 IDC receptacle that terminates discrete wires.