| Part Number: | ULO | - | MJS415A | - | 2 | A | B | 8 | 0 | 1 |
|---|---|---|---|---|---|---|---|---|---|---|
| Explanation: |
Prefix |
Model MJS415 - 2.54mm two-contact jumper |
Contacts or Ports 2 - Two contacts; MJS415, MJS415A or MJS416 |
Housing A - Open |
Colour B - Black; all models |
Plating 8 - Full gold flash; MJS415A only |
Height A 0 - 6.0mm; MJS415, MJS415A or MJS415B |
Assembly 1 - One DS1021 connector and one DS1027 jumper; MJS415A only |
MJS jumpers provide removable shorting connections for pin-header arrangements. Select the exact pitch and body form before choosing height, colour and finish. The 2.0mm and 2.54mm versions have different mating dimensions.
| Model | Pitch | Construction | Housing styles | Profile height A | Housing material |
|---|---|---|---|---|---|
| ULO-MJS415 | 2.54mm | Two-contact jumper | Open, closed, long | 6.0mm or 6.47mm; long form has its own outline | Thermoplastic |
| ULO-MJS415A | 2.54mm | Two-contact jumper and pin connector assembly | Open or closed | 6.0mm jumper profile | PBT |
| ULO-MJS415B | 2.54mm | Ganged, 3-10 ports | Open or closed | 6.0mm | PBT |
| ULO-MJS416 | 2.0mm | Two-contact jumper | Open or closed | 3.50mm or 5.00mm | PBT |
| ULO-MJS416A | 2.0mm | Ganged, 3-10 ports | Open or closed | 4.30mm | PBT |
| Characteristic | Specification |
|---|---|
| Insulation resistance | ≥500MΩ |
| Contact impedance | ≤30mΩ |
| Dielectric withstand test | 250VAC RMS for 1 minute |
| Operating temperature | -20°C to +80°C |
| Contact material | Copper alloy |
| Insulating material group | I |
| Housing flammability classification | UL94V-0 |
| Rated operating voltage and current | Unspecified |
The 250VAC value is a withstand-test condition and does not define a continuous working-voltage rating. Contact finish is selected through the ordering code; plating thickness is unspecified.
| Option | Code | Meaning | Applicable models |
|---|---|---|---|
| Housing colour | B | Black | All five models |
| Housing colour | U, Y, W, E, R | Blue, yellow, white, green, red, respectively | MJS415, MJS415B, MJS416, MJS416A |
| Contact finish | F1 | Full gold flash | MJS415, MJS415B, MJS416, MJS416A |
| Contact finish | N | Nickel | MJS415, MJS415B, MJS416, MJS416A |
| Contact finish | 2 | Gold and nickel | MJS415, MJS415B, MJS416, MJS416A |
| Contact finish | 8 | Full gold flash | MJS415A only |
The standard body is 5.00mm wide and 2.50mm thick, with a 2.54mm mating pitch. The long housing extends to 13.50mm and has a separate 2.40mm thickness dimension.
| Ordering field | Code and option |
|---|---|
| Contacts | 2: two contacts |
| Housing | A: open; B: closed; L: long |
| Height A | 0: 6.0mm; 1: 6.47mm |


This version combines one DS1021 connector with one DS1027 jumper component. The assembly has 2.54mm pin spacing and square pin sections of 0.64mm × 0.64mm, with the drawing marking a ±0.05mm pin-size tolerance. The pin extension is 3.00mm; overall axial dimensions are 11.5mm to the upper edge and 10.5mm to the inner reference surface.
| Ordering field | Code and option |
|---|---|
| Contacts | 2: two contacts |
| Housing | A: open; B: closed |
| Colour | B: black |
| Finish | 8: full gold flash |
| Height A | 0: 6.0mm |
| Connector quantity | 1: two components, one DS1021 and one DS1027 |


MJS415B groups 3-10 ports in one housing. Port spacing is 2.54mm, the transverse body dimension is 5.00mm and profile height A is 6.0mm. For N ports, the end-port centre distance is (N−1) × 2.54mm and overall length is N × 2.54mm ±0.3mm.
| Ordering field | Code and option |
|---|---|
| Port count | 3, 4, 5, 6, 7, 8, 9 or 10: corresponding number of ports |
| Housing | A: open; B: closed |
| Height A | 0: 6.0mm |


MJS416 has a 3.90mm body width, 1.90mm thickness and 2.00mm contact spacing. Select a 3.50mm or 5.00mm profile through the height code and use the corresponding open or closed outline.
| Ordering field | Code and option |
|---|---|
| Contacts | 2: two contacts |
| Housing | A: open; B: closed |
| Height A | 1: 3.50mm; 2: 5.00mm |


MJS416A offers 3-10 ports at 2.00mm spacing. The transverse body dimension is 3.90mm and profile height is 4.30mm. Overall length is N × 2.0mm ±0.3mm, with an end-port centre distance of (N−1) × 2.0mm.
| Ordering field | Code and option |
|---|---|
| Port count | 3, 4, 5, 6, 7, 8, 9 or 10: corresponding number of ports |
| Housing | A: open; B: closed |
| Height A | 3: 4.30mm |

