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TE Connectivity AMP Connectors 3-644754-4 — Pin Headers

3-644754-4 TE Connectivity MTA-156 Header 4 Pos 3.96mm

MPN3-644754-4
Active

TE Connectivity AMP Connectors MTA-156 header, 3-644754-4, 4 positions, 0.156" (3.96mm) pitch, shrouded one wall, right-angle through-hole, friction lock, tin-plated contacts, UL94 V-0, -55°C to 105°C.

$1.1800Ref. price · indicative, final on quote
RoHSROHS3 Compliant
SeriesMTA-156
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

3-644754-4 key specifications
ParameterValue
SeriesMTA-156
TypeMale Pin
MountingThrough Hole, Right Angle
Connector typeHeader
Fastening typeFriction Lock
Voltage rating600VAC
Current ratingVaries by Wire Gauge
Operating temperature-55°C ~ 105°C
Contact materialCopper Alloy
Insulation colorNatural
Insulation height0.300\" (7.62mm)
Insulation materialThermoplastic, Glass Filled

All specifications

3-644754-4 additional specifications
ParameterValue
Material flammability ratingUL94 V-0
StyleBoard to Cable/Wire
PackageBulk
ShroudingShrouded - 1 Wall
TerminationSolder
ApplicationsGeneral Purpose, Industrial
Contact shapeSquare
Rows1
Pitch0.156\" (3.96mm)
Positions4
Contact finish - postTin
Contact length - post0.175\" (4.45mm)
Contact finish - matingTin
Contact length - mating0.400\" (10.16mm)

Product details

In an industrial cabinet where the cable gets tugged during maintenance, that lock keeps the pair mated.

At 0.156" (3.96mm) pitch, the header occupies a compact footprint for a 4-position power/signal interconnect.

Rated voltage, temperature, and flammability

Rated 600VAC, this header can carry line-voltage power in equipment like industrial controls, not just low-voltage signals.

This header mates with MTA-156 receptacle housings (e.g., 3-640440-4 for 4 positions) that accept the corresponding crimp contacts. The tin-plated posts are compatible with lead-free wave solder processes.

RoHS3 compliant per directive 2015/863. No official second source or direct cross-reference is listed; the MTA-156 series is proprietary to TE Connectivity.

Frequently asked questions

What is the pitch of 3-644754-4?

The pitch is 0.156" (3.96mm). This is the centre-to-centre spacing between adjacent pins, and it determines the board footprint and the mating receptacle series.

Is 3-644754-4 through hole or surface mount?

Through hole, right-angle. The solder tails go through the PCB and are soldered on the opposite side, with the connector body sitting parallel to the board.

What is the mating connector for 3-644754-4?

It mates with MTA-156 receptacle housings (4-position, e.g., 3-640440-4) that accept the corresponding crimp terminals. The friction lock on the header engages with the latch on the receptacle.