| Part Number: | ULO | - | MP421D | - | M | B | N | 8 | 4 |
|---|---|---|---|---|---|---|---|---|---|
| Explanation: |
Brand ULO - ULO |
Model MP421D - 2V2; solder cup |
Connector Type M - Male |
Colour B - Black |
Shell Plating N - Front shell nickel plated; back shell tin plated |
Contact Plating 8 - Full gold flash |
Power-contact Current 1 - 10A; MP421D–MP421I only |
These machined-contact D-sub connectors carry power through every contact. Choose the exact layout, termination and male or female interface. The V and W layouts have distinct contact profiles even where their flange dimensions match.
| Layout | Power contacts | Solder-cup model | Right-angle PCB model | Straight PCB model |
|---|---|---|---|---|
| 2V2 | 2 | ULO-MP421D | ULO-MP422G | ULO-MP422P |
| 2W2 | 2 | ULO-MP421E | ULO-MP422H | ULO-MP422Q |
| 3V3 | 3 | ULO-MP421F | ULO-MP422I | ULO-MP422R |
| 3W3 | 3 | ULO-MP421G | ULO-MP422J | ULO-MP422S |
| 5W5 | 5 | ULO-MP421H | ULO-MP422K | ULO-MP422T |
| 8W8 | 8 | ULO-MP421I | ULO-MP422L | ULO-MP422U |
Solder-cup models offer 10A, 20A, 30A or 40A contact versions. The right-angle and straight PCB models are rated 40A. Select the solder-cup current code together with the corresponding cup dimensions.
| Characteristic | All 18 models |
|---|---|
| Rated voltage | 300V |
| Insulation resistance | ≥1000MΩ |
| Contact impedance | ≤20mΩ |
| Dielectric withstand test | 500VAC for 1 minute |
| Operating temperature | -45°C to +110°C |
| Durability | 500 cycles |
| Retention | ≥1000gf |
| Insulator | PBT with 30% glass fibre, material group I |
| Material flammability grade | UL94V-0 |
| Contact material | Copper alloy |
| Shell material | Steel |
| Field | Code and meaning | Applicability |
|---|---|---|
| Connector type | M: male; F: female | All models |
| Insulator colour | B: black; W: white; L: blue | All models |
| Shell plating | N: nickel front shell, tin back shell | All models |
| Contact plating | 8: full gold flash; C: full 3µin gold | All models |
| Current option | 1: 10A; 2: 20A; 3: 30A; 4: 40A | MP421D, MP421E, MP421F, MP421G, MP421H and MP421I |
The six solder-cup models share the following current and cup-size options. ØA and ØB correspond to the terminal cross-sections in each drawing; dimensions are in millimetres.
| Current code | Contact rating | ØA | ØB |
|---|---|---|---|
| 1 | 10A | 1.7 | 2.5 |
| 2 | 20A | 2.7 | 3.6 |
| 3 | 30A | 3.6 | 4.5 |
| 4 | 40A | 4.6 | 5.5 |






The table compares mating dimensions across the six layouts. All values are in millimetres. Models sharing a layout use the same listed flange dimensions across the three termination styles.
| Layout | Overall flange length | Mounting centres | Female mating width | Male mating width | Contact-position references |
|---|---|---|---|---|---|
| 2V2 | 30.80 | 24.99 | 16.33 | 17.90 | 6.75 between contacts |
| 2W2 | 30.80 | 24.99 | 16.33 | 17.90 | 6.75 between contacts |
| 3V3 | 39.14 | 33.32 | 24.66 | 26.50 | 6.85 between adjacent contacts; 13.70 outer span |
| 3W3 | 39.14 | 33.32 | 24.66 | 26.50 | 6.85 between adjacent contacts; 13.70 outer span |
| 5W5 | 53.04 | 47.04 | 38.38 | 40.00 | Female front-view intervals: 8.54, 6.80, 6.81, 6.81; male front view reverses this order; centre offset reference 0.86 |
| 8W8 | 69.32 | 63.50 | 54.84 | 56.50 | 45.72 outer contact span; the indicated adjacent interval is 6.35 |
All layouts show a 12.50mm flange height, 7.90mm female mating-height reference and 9.20mm male mating-height reference. Mating projections are 5.8mm for female connectors and 6.1mm for male connectors. The 5W5 and 8W8 contact patterns are not uniformly spaced; use their exact front views when matching contact positions.
MP421D through MP421I show an 8.5mm termination projection and Ø5.50mm outer cup reference. The type-specific ØA and ØB values above define the selected current option.






MP422G through MP422L have bent PCB tails, a 40A contact rating and a 12.6mm flange-to-tail-centre reference. Their four ordering fields select gender, colour, shell plating and contact plating.












MP422P through MP422U have straight through-hole tails and a 40A contact rating. Each shows Ø2.80mm tails and a 7.4mm tail-length reference. Select the exact layout and gender before preparing the PCB footprint.











