TE Connectivity Grace Inertia Series Straight Through Hole PCB Header, 2 Contact(s), 2.5mm Pitch, 1 Row(s), Shrouded

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£1.90

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£2.30

(inc. VAT)

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  • 999,999,990 unit(s) shipping from 26 March 2026
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Per unit
Per Pack*
10 - 240£0.19£1.90
250 - 490£0.171£1.71
500 - 990£0.161£1.61
1000 - 1990£0.151£1.51
2000 +£0.142£1.42

*price indicative

RS Stock No.:
123-3890
Mfr. Part No.:
2-1971800-3
Brand:
TE Connectivity
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Brand

TE Connectivity

Series

Grace Inertia

Pitch

2.5mm

Number of Contacts

2

Number of Rows

1

Body Orientation

Straight

Shrouded/Unshrouded

Shrouded

Connector System

Wire to Board

Mounting Type

Through Hole

Termination Method

Solder

Contact Material

Copper Alloy

Contact Plating

Tin

Current Rating

3.0A

Voltage Rating

50.0 V

TE Connectivity Grace Inertia 2.5 Mark II PCB Headers


Grace Inertia 2.5 Mark II PCB headers with a 2.5mm pitch. These Grace Inertia 2.5 mm Mark II PCB headers are designed to prevent human error during assembly by using an inertia locking mechanism which is built into the housing. The inertia locking mechanism simultaneously completes the circuit and locks the connector. An audible 'click' is produced to confirm mating. If improper mating is attempted the receptacle and the header contacts are prevented from making contact. This locking mechanism prevents defective products caused by half-mating and ensures that reliable connections are made. The inertia locking mechanism also prevents unmating caused by external forces providing a reliable connection when the connector is in use.
These Grace Inertia 2.5 Mark II PCB headers have a compact space saving 2.5 mm pitch and an ergonomic design for easy manual operation. The new design of these Grace Inertia 2.5 Mark II connectors also reduces contact insertion force by up to 59% during assembly. Polarizing pegs or bosses on these Grace Inertia 2.5 Mark II PCB headers provide accurate alignment on the PCB. Part numbers X-1971798-X have a 1.0mm diameter peg and part numbers X-1971800-X have a 1.5mm diameter peg. These Grace Inertia 2.5 PCB headers feature four colour coded keying methods to avoid mis-matching and blind mating.

Features and Benefits


Compact, space saving design with 2.5 mm pitch
Ergonomic design for easy manual operation
Reduction in contact insertion force of up to 59% during assembly
Inertia locking mechanism for accurate mating and secure and reliable connection
Audible mating confirmation
Colour coded keying for easy identification and accurate mating
Locating pegs for accurate placement on PCB

Applications


These Grace Inertia 2.5 Mark II PCB headers are suitable for use in a wide range of large electrical products. Applications include Air Conditioning, refrigerators, cookers, microwave ovens, dishwashers and industrial control boxes

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