| Voltage Rating | - |
| Termination | Solder |
| Style | Board to Board or Cable |
| Shrouding | Shrouded - 4 Wall |
| Series | Milli-Grid 87831 |
| Row Spacing - Mating | 0.079" (2.00mm) |
| Pitch - Mating | 0.079" (2.00mm) |
| Packaging | Tube |
| Overall Contact Length | - |
| Other Names | 087831-4020
087831-4020-E
0878314020
0878314020-E
87831-4020-E
87831-4020-TB12
878314020
878314020-E
WM18566 |
| Operating Temperature | - |
| Number of Rows | 2 |
| Number of Positions Loaded | All |
| Number of Positions | 40 |
| Mounting Type | Through Hole |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) |
| Material Flammability Rating | UL94 V-0 |
| Mated Stacking Heights | - |
| Manufacturer Standard Lead Time | 10 Weeks |
| Lead Free Status / RoHS Status | Lead free / RoHS Compliant |
| Insulation Material | Polyamide (PA), Nylon, Glass Filled |
| Insulation Height | 0.252" (6.40mm) |
| Insulation Color | Black |
| Ingress Protection | - |
| Features | Keying Slot |
| Fastening Type | Latch Holder |
| Detailed Description | Connector Header Through Hole 40 position 0.079" (2.00mm) |
| Current Rating | - |
| Contact Type | Male Pin |
| Contact Shape | Square |
| Contact Material | Phosphor Bronze |
| Contact Length - Post | 0.098" (2.50mm) |
| Contact Length - Mating | 0.141" (3.60mm) |
| Contact Finish Thickness - Post | 74.8µin (1.90µm) |
| Contact Finish Thickness - Mating | 15.0µin (0.38µm) |
| Contact Finish - Post | Tin |
| Contact Finish - Mating | Gold |
| Connector Type | Header |
| Applications | Automotive, General Purpose, Telecommunications |