TE Connectivity AMP Connectors MTA-156 series, 644749-3, unshrouded header, 3 positions, 0.156" (3.96mm) pitch, through-hole solder termination, tin-plated copper alloy contacts, UL94 V-0 natural thermoplastic housing.
| Parameter | Value |
|---|---|
| Series | MTA-156 |
| Type | Male Pin |
| Mounting | Through Hole |
| Connector type | Header |
| Voltage rating | 600VAC |
| Current rating | Varies by Wire Gauge |
| Operating temperature | -55°C ~ 105°C |
| Contact material | Copper Alloy |
| Insulation color | Natural |
| Insulation height | 0.125\" (3.18mm) |
| Insulation material | Thermoplastic, Glass Filled |
| Material flammability rating | UL94 V-0 |
| Parameter | Value |
|---|---|
| Style | Board to Cable/Wire |
| Package | Bulk |
| Shrouding | Unshrouded |
| Termination | Solder |
| Applications | General Purpose, Industrial |
| Contact shape | Square |
| Rows | 1 |
| Pitch | 0.156\" (3.96mm) |
| Positions | 3 |
| Contact finish - post | Tin |
| Contact length - post | 0.175\" (4.45mm) |
| Overall contact length | 0.700\" (17.78mm) |
| Contact finish - mating | Tin |
| Contact length - mating | 0.400\" (10.16mm) |
The 644749-3: The 0.156" (3.96mm) pitch sets the PCB footprint and the per-contact current ceiling — at the rated voltage of 600VAC, the current is limited by the attached wire gauge, not the header itself.
The through-hole mounting with a 0.175" (4.45mm) post length provides a solid solder joint for wire-to-board connections.
The pitch is 0.156" (3.96mm), which sets the PCB footprint and the per-contact current ceiling.
Yes, it is RoHS Compliant per the current directive.