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TE Connectivity AMP Connectors 644875-3 — Pin Headers

644875-3 TE Connectivity MTA-100 Header 3 Pos 2.54mm Right

MPN644875-3
Active

TE Connectivity AMP Connectors MTA-100, 644875-3, Board to Cable/Wire Header, 3 circuits, 0.100" (2.54mm) pitch, right-angle through-hole, tin-plated male pins, shrouded 1 wall, friction lock, UL94 V-0 natural thermoplastic.

$0.6100Ref. price · indicative, final on quote
RoHSRoHS Compliant
SeriesMTA-100
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

644875-3 key specifications
ParameterValue
SeriesMTA-100
TypeMale Pin
MountingThrough Hole, Right Angle
Connector typeHeader
Fastening typeFriction Lock
Voltage rating250VAC
Current ratingVaries by Wire Gauge
Operating temperature-55°C ~ 105°C
Contact materialCopper Alloy
Insulation colorNatural
Insulation height0.225\" (5.72mm)
Insulation materialThermoplastic

All specifications

644875-3 additional specifications
ParameterValue
Material flammability ratingUL94 V-0
StyleBoard to Cable/Wire
PackageBulk
ShroudingShrouded - 1 Wall
TerminationSolder
ApplicationsGeneral Purpose
Contact shapeSquare
Rows1
Pitch0.100\" (2.54mm)
Positions3
Contact finish - postTin
Contact length - post0.135\" (3.43mm)
Contact finish - matingTin
Contact length - mating0.295\" (7.49mm)

Product details

0.100" pitch header for MTA-100 receptacles

Tin-plated contacts and 250VAC rating

The square male pins measure 0.295" (7.49mm) on the mating side and 0.135" (3.43mm) on the post side, with a 5.72mm insulation height that provides adequate creepage distance for the voltage rating.

Peer alternatives: 644877-3 and 640455-3

The closest functional second-source within the MTA-100 family is the 644877-3, which differs only by the termination style — kinked pin instead of straight solder. The 640455-3 is identical in every spec except the base product number. Both are 3-position, right-angle, tin-plated headers with the same footprint and friction lock. For a BOM line requiring a straight solder tail, the 644875-3 is the direct match.

Frequently asked questions

What is the pinout of the 644875-3?

The 644875-3 is a single-row, 3-position header with all positions loaded. The pinout is a straight 1×3 array on 0.100" (2.54mm) pitch. The mating contacts are square male pins; the solder posts are 0.135" (3.43mm) long.

What is the closest replacement or alternative for the 644875-3?

Within the MTA-100 family, the 644877-3 is the closest functional alternative — it shares the same pitch, position count, plating, and friction lock, but uses a kinked solder pin instead of a straight tail. The 640455-3 is identical in all specs. For a straight-tail solder termination, the 644875-3 remains the direct match.