Pitch, positions, and what locks it
The 1744057-7: This is a single-row, 7-position header on a 0.156" (3.96 mm) pitch — a common footprint for TE's Economy Power line, used in general-purpose, industrial, and lighting applications.

TE Connectivity AMP Connectors, Economy Power series, Board to Cable/Wire header, 1744057-7, 7 positions, 0.156" (3.96 mm) pitch, single row, shrouded - 1 wall, through hole solder termination, tin-plated male square pins, friction lock, 7.5 A, 250 VAC, UL94 V-0.
| Parameter | Value |
|---|---|
| Series | Economy Power |
| Type | Male Pin |
| Mounting | Through Hole |
| Connector type | Header |
| Fastening type | Friction Lock |
| Voltage rating | 250VAC |
| Current rating | 7.5A |
| Operating temperature | -25°C ~ 105°C |
| Contact material | Brass |
| Insulation color | Natural |
| Insulation height | 0.127\" (3.22mm) |
| Insulation material | Polyamide (PA66), Nylon 6/6 |
| Parameter | Value |
|---|---|
| Material flammability rating | UL94 V-0 |
| Style | Board to Cable/Wire |
| Package | Bulk |
| Features | Board Guide |
| Shrouding | Shrouded - 1 Wall |
| Termination | Solder |
| Applications | General Purpose, Industrial, Lighting |
| Contact shape | Square |
| Rows | 1 |
| Pitch | 0.156\" (3.96mm) |
| Positions | 7 |
| Contact finish - post | Tin |
| Contact length - post | 0.145\" (3.68mm) |
| Overall contact length | 0.575\" (14.60mm) |
| Contact finish - mating | Tin |
| Contact length - mating | 0.303\" (7.70mm) |
| Contact finish thickness - post | 120.0µin (3.05µm) |
| Contact finish thickness - mating | 120.0µin (3.05µm) |
The 1744057-7: This is a single-row, 7-position header on a 0.156" (3.96 mm) pitch — a common footprint for TE's Economy Power line, used in general-purpose, industrial, and lighting applications.
This header mates with a TE Economy Power receptacle housing (e.g., 1-292164-1 series) and the matching crimp terminals. The friction lock keying aligns with the receptacle's locking ramp.