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TE Connectivity AMP Connectors 3-644456-9 — Pin Headers

3-644456-9 TE Connectivity MTA-100 Header, 9 Pos

MPN3-644456-9
Active

TE Connectivity AMP Connectors MTA-100 unshrouded header, 3-644456-9, 9 positions single row, 0.100" (2.54 mm) pitch, through-hole solder termination, tin-plated contacts, UL94 V-0 natural thermoplastic, -55°C to 105°C.

$0.6300Ref. 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 supplier — new & surplus connector stock· Listing updated Aug 2026

Specifications

3-644456-9 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

3-644456-9 additional specifications
ParameterValue
StyleBoard to Cable/Wire
PackageBulk
ShroudingUnshrouded
TerminationSolder
ApplicationsGeneral Purpose
Contact shapeSquare
Rows1
Pitch0.100\" (2.54mm)
Positions9
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

150 µinch tin — built for repeated mating in low-cycle harness work

That's a heavy tin plate — it handles 25–50 mating cycles without fretting in dry-circuit applications, and the same thickness on the post ensures good solder fillet formation through the hole. Current rating depends on wire gauge in the mating receptacle — the header itself is not the limiting factor. Voltage rating is 250 VAC, consistent with the MTA-100 family's signal-level duty.

Active production — no cross-reference hunt needed

RoHS3 compliant and UL94 V-0 rated. The natural thermoplastic housing is unpigmented — no colourant to affect dimensional stability.

Frequently asked questions

What is the datasheet for 3-644456-9?

Design engineers need full electrical and mechanical specs to validate fit in their PCB layout.

What is the price and stock of 3-644456-9?

Sourcing buyers compare prices and real-time availability across distributors to fill BOM lines quickly.

Where can I buy 3-644456-9?

Buyers need trusted distributor links to place an order immediately for production or prototyping.

Is 3-644456-9 a replacement for 3-644456-8?

Maintenance techs and buyers need to know if this part can substitute a similar MPN without redesign.

What is the lead time for 3-644456-9?

Manufacturing planners need to know delivery schedules to avoid production delays.

What is the pinout of 3-644456-9?

Engineers validating connections need the exact pin arrangement to match with mating connectors.