| PartNumber | 531138-5 | 531138-4 | 531138-2 |
| Description | Headers & Wire Housings 3ROW BOX REC 165P 100CL UNSEAL | Headers & Wire Housings 3ROW BOX REC 150P 100CL UNSEAL | Headers & Wire Housings 3ROW BOX REC 105P 100CL UNSEAL |
| Manufacturer | TE Connectivity | TE Connectivity | TE Connectivity |
| Product Category | Headers & Wire Housings | Headers & Wire Housings | Headers & Wire Housings |
| Brand | TE Connectivity | TE Connectivity / AMP | TE Connectivity / AMP |
| Product Type | Headers & Wire Housings | Headers & Wire Housings | Headers & Wire Housings |
| Factory Pack Quantity | 1 | 1 | 1 |
| Subcategory | Headers & Wire Housings | Headers & Wire Housings | Headers & Wire Housings |
| Part # Aliases | 531138-5 | 531138-4 | 531138-2 |
| Number of Positions | - | 30 Position | 26 Position |
| Pitch | - | 2.54 mm | 2.54 mm |
| Number of Rows | - | 3 Row | 3 Row |
| Mounting Style | - | - | - |
| Termination Style | - | Through Hole | Through Hole |
| Contact Gender | - | Socket (Female) | Socket (Female) |
| Contact Plating | - | Gold | Gold |