TE Connectivity AMP Connectors AMPMODU Mod II header, breakaway, 40 positions, single row, 0.100" (2.54 mm) pitch, unshrouded, through-hole solder termination, gold mating finish, 3 A rating.
| Parameter | Value |
|---|---|
| Series | AMPMODU Mod II |
| Type | Male Pin |
| Mounting | Through Hole |
| Connector type | Header, Breakaway |
| Fastening type | Push-Pull |
| Current rating | 3A |
| Operating temperature | -65°C ~ 105°C |
| Contact material | Copper Alloy |
| Insulation color | Black |
| Insulation height | 0.090\" (2.29mm) |
| Insulation material | Liquid Crystal Polymer (LCP) |
| Material flammability rating | UL94 V-0 |
| Parameter | Value |
|---|---|
| Style | Board to Board or Cable |
| Package | Bulk |
| Shrouding | Unshrouded |
| Termination | Solder |
| Contact shape | Square |
| Rows | 1 |
| Pitch | 0.100\" (2.54mm) |
| Positions | 40 |
| Contact finish - post | Tin |
| Contact length - post | 0.120\" (3.05mm) |
| Overall contact length | 0.440\" (11.18mm) |
| Contact finish - mating | Gold |
| Contact length - mating | 0.230\" (5.84mm) |
| Contact finish thickness - post | 100.0µin (2.54µm) |
| Contact finish thickness - mating | 30.0µin (0.76µm) |
The key difference is the mating gold thickness: 9-146281-0 carries 30.0 µinch (0.76 µm) gold, while 1376779-2 has 8.00 µinch (0.203 µm) gold — a factor of nearly 4× in plating thickness, which directly affects mating cycle life in field-service applications.
The square male pins are 0.025" square, standard for wire-wrap or crimp-socket termination.
The closest functional alternative is 1376779-2, also an AMPMODU Mod II single-row unshrouded header. The main difference is the mating gold thickness: 9-146281-0 has 30.0 µinch gold, while 1376779-2 has 8.00 µinch gold.