| Part Number: | ULO | - | TB44 | - | 24VHM | - | 07 | P | - | 3 | 000A |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Explanation: |
Manufacturer ULO - ULO Electronics |
Series TB44 - 7-pole PCB header configuration |
Header Type 24VHM - 7.0mm pluggable PCB header with mounting nuts |
Poles 07 - 7 poles |
Pole Unit P - Poles |
Color 3 - Black |
Customer Code 000A - Fixed customer requirements code shown in the drawing |
TB44-24VHM/7.0 headers are offered in 7-pole and 18-pole versions at 7.0mm contact pitch. The 7-pole version has two staggered contact rows, with four contacts in one row and three in the other. The product photograph illustrates the longer 18-pole version.
| Characteristic | 7-pole version | 18-pole version |
|---|---|---|
| Base model | TB44-24VHM/7.0 | |
| Contact pitch | 7.0mm | |
| Contact arrangement | Two staggered rows, 4+3 contacts | Two rows, 18 contacts |
| Insulation | Glass-fibre PA66 | PA66 |
| Insulation group and flammability | Material group I; UL94V-0 | |
| Contacts | Tin-plated brass | Tin-plated copper alloy |
| End fixing nuts | M3, nickel-plated brass | Thread and material not specified |
| Protection level | IP20 | |
| Operating temperature | -40°C to +105°C | |
| Material compliance | RoHS compliance declared | Not specified |
The 7-pole dimensions below are specific to that version. Dimensions and row offsets for the 18-pole version are unspecified. Check the intended mating part's contact pattern, keying and fixing positions before selection.
The general IEC rating is 15A, 320V. Condition-specific ratings are listed below.
| Version | Overvoltage category | Pollution degree | Rated voltage | Rated impulse voltage |
|---|---|---|---|---|
| 7-pole and 18-pole | III | 3 | Not specified | Not specified |
| 2 | 320V | 4kV | ||
| II | Not specified | Not specified |
| UL use group | Rated current | Rated voltage |
|---|---|---|
| B | 10A | 300V |
| C | Not specified | Not specified |
| D |
The 7-pole version has a dielectric withstand test of 1500VAC for 1 minute. A dielectric test value for the 18-pole version and certificate file numbers are unspecified.
| Field | Meaning |
|---|---|
| Series and model | TB44; 24VHM/7.0 |
| Pole selection | 7 or 18 poles; the 7-pole drawing specifies 07P |
| 7-pole drawing suffix | 3000A: colour 3, black, with customer suffix 000A |
| General colour legend | 1 grey; 2 blue; 3 black; 4 green; 5 orange; 6 red; 7 transparent; 8 yellow; 9 white |
| General screw-head field | 0 slot; 1 cross |
| General screw-clamping field | 0 screw down; 1 screw up |
| General standard-product field | 0A |
The general legend applies across the terminal range. Its 02–99 pole field does not establish additional sizes for this header, and its screw-clamping fields do not define a wire clamp on the PCB header. The illustrated product is black; other colour combinations are unspecified.
| 7-pole outline dimension | Value |
|---|---|
| Housing length | 35.30mm |
| Housing width | 19.00mm |
| Housing height | 7.60mm |
| Fixing nut centre span | 27.90mm |
| Fixing nut thread | M3 |
| Fixing row edge reference | 4.60mm |
| Solder pin width and thickness | 1.00mm × 0.80mm |
| Solder-tail projection | 3.10±0.20mm |
| Upper projection reference | 0.70mm |
| Lower stand-off reference | 1.15mm |
| Four-contact row span | 21.00mm |
| 7-pole PCB layout dimension | Value |
|---|---|
| Pitch within each row | 7.00mm |
| Longitudinal stagger between rows | 3.50mm |
| Distance between rows | 8.30mm |
| PCB hole diameter | Ø1.60mm |
| Lower row to body boundary reference | 6.10mm |

Individual dimension tolerances take precedence over these general values.
| Dimension range | Total pitch tolerance | Nominal dimension tolerance |
|---|---|---|
| Over 0mm to 30mm | ±0.18mm | ±0.20mm |
| Over 30mm to 53mm | ±0.20mm | ±0.25mm |
| Over 53mm to 70mm | ±0.25mm | ±0.30mm |
| Over 70mm to 90mm | ±0.30mm | ±0.35mm |
| Over 90mm to 115mm | ±0.35mm | ±0.44mm |
| Over 115mm to 150mm | ±0.44mm | ±0.55mm |
| Over 150mm to 200mm | ±0.55mm | ±0.70mm |
| Over 200mm to 250mm | ±0.70mm | ±0.80mm |
| Over 250mm to 320mm | ±0.75mm | ±0.90mm |
| Geometric characteristic | Applicable dimension | Tolerance |
|---|---|---|
| Perpendicularity | 0–10mm | 0.2mm |
| Over 10mm | 0.3mm | |
| Symmetry | All | 0.3mm |
| Straightness | Over 0mm to 100mm | 0.2mm |
| Parallelism | Over 100mm to 150mm | 0.3mm |
| Over 150mm | 0.5mm |