28-position breakaway header, 0.100" pitch
The 77313-124-28: Mating contacts are gold or GXT plated, rated for repeated insertion cycles; the post finish is tin for solderability.
Amphenol ICC (FCI) lists the 77313-124-28 as Obsolete.

Amphenol ICC (FCI) BERGSTIK header, breakaway, order code 77313-124-28, 28 positions, dual row, 0.100" (2.54mm) pitch, gold or GXT mating contact, through-hole, solder termination.
| Parameter | Value |
|---|---|
| Series | BERGSTIK® |
| Type | Male Pin |
| Mounting | Through Hole |
| Connector type | Header, Breakaway |
| Fastening type | Push-Pull |
| Contact material | Phosphor Bronze |
| Insulation color | Black |
| Insulation height | 0.100\" (2.54mm) |
| Insulation material | Thermoplastic |
| Material flammability rating | UL94 V-0 |
| Style | Board to Board or Cable |
| Package | Bulk |
| Parameter | Value |
|---|---|
| Shrouding | Unshrouded |
| Termination | Solder |
| Contact shape | Square |
| Rows | 2 |
| Pitch | 0.100\" (2.54mm) |
| Positions | 28 |
| Row spacing - mating | 0.100\" (2.54mm) |
| Contact finish - post | Tin |
| Contact length - post | 0.114\" (2.90mm) |
| Overall contact length | 0.480\" (12.19mm) |
| Contact finish - mating | Gold or Gold, GXT™ |
| Contact length - mating | 0.266\" (6.75mm) |
| Contact finish thickness - post | 78.7µin (2.00µm) |
| Contact finish thickness - mating | 30.0µin (0.76µm) |
The 77313-124-28: Mating contacts are gold or GXT plated, rated for repeated insertion cycles; the post finish is tin for solderability.
Amphenol ICC (FCI) lists the 77313-124-28 as Obsolete.
The 77313-124-28 is available through independent surplus channels.