BOM-fit check: pitch, circuit count, and plating
The 1-825440-6: The gold mating finish (3.90µin) is a step above the tin finish on peer 1379030-3, which limits that part to fewer mating cycles and a lower temperature ceiling.

TE Connectivity AMP Connectors AMPMODU Mod II unshrouded header, 32 positions, 0.100" (2.54mm) pitch, dual-row, through-hole, male pin, gold mating finish, UL94 V-0, Bulk
| Parameter | Value |
|---|---|
| Series | AMPMODU Mod II |
| Type | Male Pin |
| Mounting | Through Hole |
| Connector type | Header |
| Fastening type | Push-Pull |
| Operating temperature | -65°C ~ 105°C |
| Contact material | Brass |
| Insulation color | Green |
| Insulation height | 0.110\" (2.79mm) |
| Insulation material | Polybutylene Terephthalate (PBT) |
| Material flammability rating | UL94 V-0 |
| Style | Board to Board or Cable |
| Parameter | Value |
|---|---|
| Package | Bulk |
| Shrouding | Unshrouded |
| Termination | Solder |
| Contact shape | Square |
| Rows | 2 |
| Pitch | 0.100\" (2.54mm) |
| Positions | 32 |
| Row spacing - mating | 0.100\" (2.54mm) |
| Contact finish - post | Tin |
| Contact length - post | 0.126\" (3.20mm) |
| Overall contact length | 0.500\" (12.70mm) |
| Contact finish - mating | Gold |
| Contact length - mating | 0.264\" (6.70mm) |
| Contact finish thickness - post | 98.4µin (2.50µm) |
| Contact finish thickness - mating | 3.90µin (0.099µm) |
The 1-825440-6: The gold mating finish (3.90µin) is a step above the tin finish on peer 1379030-3, which limits that part to fewer mating cycles and a lower temperature ceiling.
0.100" (2.54mm) pitch, 32 positions loaded in two rows with 0.100" (2.54mm) row spacing.
Sourced to order against the BOM quantity. Availability and pricing confirmed at quote time.