TE Connectivity AMP Connectors MTA-100 series, 3-644457-7: unshrouded header, 7 positions, 0.100" (2.54mm) pitch, right-angle through-hole solder termination, tin-plated contacts, UL94 V-0 natural thermoplastic housing.
| Parameter | Value |
|---|---|
| Series | MTA-100 |
| Type | Male Pin |
| Mounting | Through Hole, Right Angle |
| Connector type | Header |
| Voltage rating | 250VAC |
| Current rating | Varies by Wire Gauge |
| Operating temperature | -55°C~105°C |
| Contact material | Copper Alloy |
| Insulation color | Natural |
| Insulation height | 0.100\" (2.54mm) |
| Insulation material | Thermoplastic |
| Material flammability rating | UL94 V-0 |
| Parameter | Value |
|---|---|
| Style | Board to Cable/Wire |
| Package | Bulk |
| Shrouding | Unshrouded |
| Termination | Solder |
| Applications | General Purpose |
| Contact shape | Square |
| Rows | 1 |
| Pitch | 0.100\" (2.54mm) |
| Positions | 7 |
| Contact finish - post | Tin |
| Contact length - post | 0.110\" (2.79mm) |
| Contact finish - mating | Tin |
| Contact length - mating | 0.260\" (6.60mm) |
| Contact finish thickness - post | 150.0µin (3.81µm) |
| Contact finish thickness - mating | 150.0µin (3.81µm) |
The 3-644457-7: It mates with MTA-100 receptacle housings for a board-to-cable/wire connection.
The closest functional second-source is the 1-292164-1 from the CT series — also a right-angle through-hole header, but shrouded with a detent lock and 11 positions at 0.079" (2.00mm) pitch. The 3-644457-7 is unshrouded, which means the pins are exposed after soldering — easier to probe during test but less protected against accidental shorting.
Yes — the 3-644457-7 is an unshrouded header. The pins are exposed after soldering, which means the mating receptacle provides the physical protection. It mates with standard MTA-100 receptacle housings.