TE Connectivity AMP Connectors MTA-100, 3-644456-4, Board to Cable/Wire Header, 4 circuits, 0.100" (2.54mm) pitch, unshrouded, through hole, tin mating finish, UL94 V-0
| Parameter | Value |
|---|---|
| Series | MTA-100 |
| Type | Male Pin |
| Mounting | Through Hole |
| 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 | 4 |
| Contact finish - post | Tin |
| Contact length - post | 0.110\" (2.79mm) |
| Overall contact length | 0.505\" (12.83mm) |
| Contact finish - mating | Tin |
| Contact length - mating | 0.295\" (7.49mm) |
| Contact finish thickness - post | 150.0µin (3.81µm) |
| Contact finish thickness - mating | 150.0µin (3.81µm) |
The 3-644456-4: At 4 positions and 0.100" pitch, this header matches the footprint of a standard MTA-100 receptacle, such as the 3-640441-4 (4-position IDC socket). The unshrouded design allows direct access to pins for probing or manual wiring.
Sourced per RFQ against BOM quantities; no stock-holding claim. Confirm the mating half (e.g., MTA-100 receptacle) and wire gauge for current derating before ordering.
Yes, this header mates with standard MTA-100 crimp receptacles (e.g., 3-640441-4 series). The 0.100" pitch and unshrouded design align with the MTA-100 wire-to-board system. Confirm the receptacle's position count matches the 4-position header.
The current rating varies by wire gauge. For the header itself, the tin-plated contacts and 0.100" pitch typically support up to 5A per circuit with appropriate wire, but derate based on ambient temperature and number of adjacent circuits. Refer to the MTA-100 application note for specific derating curves.