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TE Connectivity AMP Connectors 3-643820-7 — Panel-Mount & In-Line Circular

TE Connectivity 3-643820-7 MTA-156 Receptacle, 7 Pos

MPN3-643820-7
Active

TE Connectivity MTA-156 IDC receptacle, 7 positions, 0.156" (3.96mm) pitch, 1 row, tin contacts, 24 AWG, free-hanging, locking ramp, white.

$0.6000Ref. price · indicative, final on quote
RoHSROHS3 Compliant
SeriesMTA-156
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

3-643820-7 specifications
ParameterValue
SeriesMTA-156
Wire typeDiscrete or Ribbon Cable
TypeFemale Socket
MountingFree Hanging (In-Line)
Connector typeReceptacle
Fastening typeLocking Ramp
Wire gauge24 AWG
Cable terminationIDC
ColorWhite
Pitch0.156\" (3.96mm)
PackageBulk
FeaturesClosed End, Polarizing Key
Contact finishTin
Rows1
Positions7
Contact finish thickness80.0µin (2.03µm)

Product details

7-Position IDC Receptacle at 0.156" Pitch

It terminates 24 AWG wire through the insulation-displacement slot — no stripping or crimping needed. The 0.156" (3.96mm) pitch matches the standard MTA-156 header footprint, and the single-row layout keeps the cable exit inline with the board edge.

Termination and Wire Sizing

It is sized for 24 AWG only; the slot geometry does not accept other gauges reliably. Tin is adequate for one-time assembly into a harness; for repeated disconnect-reconnect duty, the mating header should use tin contacts as well to avoid galvanic mismatch.

The polarizing key ensures the connector cannot be inserted backward. For panel-feed applications, the closed end blocks the connector from passing through a cutout, which keeps the termination inside the enclosure.

Frequently asked questions

What wire gauge does 3-643820-7 accept?

This IDC receptacle is designed for 24 AWG discrete or ribbon cable. The slot geometry is fixed for that gauge and does not accept other wire sizes.

Is 3-643820-7 RoHS compliant?

Yes, it is ROHS3 Compliant, covering the full restricted substance list including the four phthalates.

What is the pitch of 3-643820-7?

The pitch is 0.156" (3.96mm), which is the standard MTA-156 spacing and matches the corresponding header footprint.