| Part Number: | ULO | - | TB440 | - | 8VCB | - | 5.0 | - | 02 | P |
|---|---|---|---|---|---|---|---|---|---|---|
| Explanation: |
Manufacturer ULO - ULO Electronics |
Series TB440 - 5.0mm pitch |
Mating Orientation 8VCB - Vertical PCB header |
Pitch 5.0 - 5.0mm, TB440 only |
Poles 02–24 - 2–24 poles, written with two digits |
Pole Unit P - Poles |
MCS 8VCB and 8RCB headers provide a single row of PCB contacts with shrouded mating interfaces. Choose 8VCB for vertical mating or 8RCB for right-angle mating. The 5mm and 7.5mm versions have separate body-length formulas and electrical ratings. Each model is offered with 2–24 poles.
| Model | Pitch | Mating orientation | Poles | Body length A |
|---|---|---|---|---|
| TB440-8VCB/5.0 | 5mm | Vertical | 2–24 | 5(P−1)+8.2mm |
| TB440-8RCB/5.0 | Right-angle | |||
| TB460-8VCB/7.5 | 7.5mm | Vertical | 7.5(P−1)+8mm | |
| TB460-8RCB/7.5 | Right-angle |
P denotes the number of poles. Select the full model and pole count together with its matching outline and PCB contact layout.
| Models | IEC rated current | IEC rated voltage | Overvoltage category | Pollution degree | Rated impulse voltage |
|---|---|---|---|---|---|
| TB440-8VCB/5.0; TB440-8RCB/5.0 | 12A | 250V | III | 3 | 4kV |
| TB460-8VCB/7.5; TB460-8RCB/7.5 | 400V | 6kV |
| Models | UL use group | Rated current | Rated voltage |
|---|---|---|---|
| All four models | B | 10A | 300V |
| C | Not specified | Not specified | |
| D |
| Property | All four models |
|---|---|
| Contact arrangement | Single row in a straight line |
| Insulation material | PA66 |
| Insulation material group | I |
| Flammability classification | UL94V-0 |
| Contact material | Brass |
| Contact finish | Tin-plated |
| Protection level | IP20 |
| Operating temperature | -40°C to +105°C |
The 5mm drawings show 4.1mm end margins and a 12mm header body dimension. The 30mm dimension includes the illustrated mating component. Use the section views to distinguish header, contact-tail and assembled dimensions.


The 7.5mm drawings use 4mm end margins and A=7.5(P−1)+8mm. Their 30mm assembled dimension includes the illustrated mating component. Match the mating interface and contact layout before choosing a counterpart.


The following general tolerances apply to dimensions without a specific tolerance on the drawings.
| Dimension range | Total pitch tolerance | Nominal dimension tolerance |
|---|---|---|
| Over 0–30mm | ±0.18mm | ±0.20mm |
| Over 30–53mm | ±0.20mm | ±0.25mm |
| Over 53–70mm | ±0.25mm | ±0.30mm |
| Over 70–90mm | ±0.30mm | ±0.35mm |
| Over 90–115mm | ±0.35mm | ±0.44mm |
| Over 115–150mm | ±0.44mm | ±0.55mm |
| Over 150–200mm | ±0.55mm | ±0.70mm |
| Over 200–250mm | ±0.70mm | ±0.80mm |
| Over 250–320mm | ±0.75mm | ±0.90mm |
| Geometric tolerance | Applicable range | Value |
|---|---|---|
| Perpendicularity | 0–10mm | 0.2mm |
| Over 10mm | 0.3mm | |
| Symmetry | All | 0.3mm |
| Straightness | Over 0–100mm | 0.2mm |
| Parallelism | Over 100–150mm | 0.3mm |
| Over 150mm | 0.5mm |