| PartNumber | 81020-660C04 | 81020-660C01 | 81020-660C01-RB |
| Description | Headers & Wire Housings 20/MHDR/STR/SMT30AVG LEJINS/PSTMNT/90:10 | Headers & Wire Housings 20P 4WL TRIPLR HDR LNG EJECT STRT HDR | Headers & Wire Housings 20 CNTCT LONG EJECT NO BOARD MOUNT |
| Manufacturer | 3M | 3M | 3M |
| Product Category | Headers & Wire Housings | Headers & Wire Housings | Headers & Wire Housings |
| Product | Headers | Headers | Headers |
| Type | Latch / Eject | Latch / Eject | Ribbon Cable |
| Pitch | 1.27 mm | 1.27 mm | 1.27 mm |
| Number of Rows | 2 Row | 2 Row | 2 Row |
| Mounting Style | - | - | SMD |
| Termination Style | Through Hole | Through Hole | SMD/SMT |
| Contact Plating | Gold | Gold | Gold |
| Series | 810 | 810 | 810 |
| Current Rating | 500 mA | 500 mA | 750 mA |
| Brand | 3M Electronic Solutions Division | 3M Electronic Solutions Division | 3M Electronic Solutions Division |
| Contact Material | Copper Alloy | Copper Alloy | Copper Alloy |
| Product Type | Headers & Wire Housings | Headers & Wire Housings | Headers & Wire Housings |
| Factory Pack Quantity | 200 | 200 | 200 |
| Subcategory | Headers & Wire Housings | Headers & Wire Housings | Headers & Wire Housings |
| Part # Aliases | 05113860765 80610463442 | 05113882086 80610484448 | 05111991935 80001211186 |
| Unit Weight | 0.019917 oz | 0.013998 oz | 0.081986 oz |
| RoHS | - | N | - |
| Number of Positions | - | - | 20 Position |
| Mounting Angle | - | - | Straight |
| Contact Gender | - | - | Pin (Male) |
| Mating Post Length | - | - | 3.56 mm |
| Accessory Type | - | - | - |
| Contact Type | - | - | - |
| Housing Material | - | - | Liquid Crystal Polymer (LCP) |
| Flammability Rating | - | - | UL 94 V-0 |
| Row Spacing | - | - | 2.54 mm |
| Latching Type | - | - | Ejector Latch |
| Maximum Operating Temperature | - | - | + 105 C |
| Minimum Operating Temperature | - | - | - 55 C |