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TE Connectivity AMP Connectors 1776259-4 — Wire-to-Board Headers

1776259-4 TE Buchanan Terminal Block, 4 Pos, 5.00mm, 10A

MPN1776259-4
Active

TE Connectivity Buchanan, PCB terminal block, 1776259-4, 4 positions, 5.00mm pitch, 10 A, 300 V, through hole, screwless push-in spring termination, green.

$4.5300Ref. price · indicative, final on quote
RoHSROHS3 Compliant
SeriesBuchanan
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

1776259-4 specifications
ParameterValue
SeriesBuchanan
MountingThrough Hole
Voltage300 V
Current10 A
Wire gauge14-22 AWG
Wire terminationScrewless - Leg Spring, Push-In Spring
Operating temperature-55°C ~ 105°C
ColorGreen
Housing materialPolyamide (PA66), Nylon 6/6
Clamp material - platingSteel, Stainless
Contact material - platingBrass - Nickel Tin Plated
Pitch0.197\" (5.00mm)
PackageBulk
Number of levels1
Mating orientationVertical with Board
Positions per level4

Product details

5.00 mm Pitch, 4-Position PCB Terminal Block with Push-In Spring Clamp

It mounts vertically with the board — wire entry is top-facing, perpendicular to the PCB. The green polyamide (PA66) housing is the standard color for industrial terminal blocks, aiding field identification in panel builds. This is an active-production member of the Buchanan series, a long-running TE family for board-level wire termination.

Screwless Push-In Termination — No Tool Needed for Solid Wire

The defining feature here is the screwless leg spring, push-in termination. Strip the wire, push it into the clamp opening — the spring leg grips the conductor and holds it against the current bar. No screwdriver, no torque spec, no risk of backing out under vibration. For solid or ferruled stranded wire in the 14-22 AWG range, this is faster to terminate than a screw clamp and more repeatable on a production line. The clamp material is steel, stainless; the contact material is brass with nickel tin plating — adequate for the 10 A rating in dry indoor environments.

Rated 10 A and 300 V, this block handles typical panel power distribution — control transformers, power supplies, motor starters — where each circuit carries a few amps at line voltage.

No end-of-life notice on record.

Frequently asked questions

Can 1776259-4 be used for 14 AWG wire?

Yes, the wire range is 14-22 AWG. The push-in spring clamp accepts solid or ferruled stranded 14 AWG wire directly — no ferrule required for solid, but a ferrule is recommended for stranded to prevent strand fan-out during insertion.

What is the overall height of 1776259-4?

The overall height is not listed in the available specifications. The block mounts vertically with the board; the height above the PCB depends on the specific product drawing. Refer to the TE Buchanan series dimensional drawing for the exact stack height.