Board-to-Wire Header for Tight Enclosures
Where the Current Rating Lands
In practice, with 20 AWG wire and the matching Micro MATE-N-LOK crimp terminal, expect around 5 A per circuit at a 30°C rise; derate for higher ambient or bundled wires.
3-1445055-2 TE Connectivity Micro MATE-N-LOK Header, 12 Pos
MPN3-1445055-2
Active
TE Connectivity AMP Connectors Micro MATE-N-LOK header, 12 circuits, single row, 3.00 mm pitch, shrouded 4-wall, right-angle through-hole solder, tin-plated male pins, board lock, locking ramp, UL94 V-0, -40°C to 105°C.
$1.8707Ref. price · indicative, final on quote
Source DocumentedChannel stated on listing & quote
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Independent supplier — new & surplus connector stock· Listing updated Aug 2026
Specifications
| Parameter | Value |
|---|---|
| Series | Micro MATE-N-LOK |
| Type | Male Pin |
| Mounting | Through Hole, Right Angle |
| Connector type | Header |
| Fastening type | Locking Ramp |
| Voltage rating | 250V |
| Current rating | Varies by Wire Gauge |
| Operating temperature | -40°C~105°C |
| Contact material | Brass |
| Insulation color | Black |
| Insulation height | 0.152\" (3.85mm) |
| Insulation material | Polyamide (PA), Nylon |
All specifications
| Parameter | Value |
|---|---|
| Material flammability rating | UL94 V-0 |
| Style | Board to Cable/Wire |
| Package | Tray |
| Features | Board Lock |
| Shrouding | Shrouded - 4 Wall |
| Termination | Solder |
| Applications | General Purpose |
| Contact shape | Square |
| Rows | 1 |
| Pitch | 0.118\" (3.00mm) |
| Positions | 12 |
| Contact finish - post | Tin |
| Contact length - post | 0.138\" (3.50mm) |
| Contact finish - mating | Tin |
| Contact finish thickness - post | 100.0µin (2.54µm) |
| Contact finish thickness - mating | 100.0µin (2.54µm) |
Product details
Frequently asked questions
What mates with 3-1445055-2?
The mating half uses the same 3.00 mm pitch and locking ramp interface. Confirm the circuit count and keying position on the receptacle side before ordering.
How do I get a datasheet for 3-1445055-2?
The base product number is 1445055. TE Connectivity publishes a product drawing and application specification under that base number. The spec table on this page lists the verified ratings from that documentation.