| Part Number: | ULO | - | TB44 | - | 24 | / | 2 | / | A | - | 2x02 | P | - | 3 | 100A |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Explanation: |
Code Prefix |
Series Number |
Structure 24 - Standard double-row body; termination 1 or 2 |
Termination 1 - PCB solder pins; 24 or 24B |
Mounting A - End mounting flanges; 24/1 and 24/2 only |
Position Code 2x02–2x24 - 24/2 and 24/2/A: 2–24 contacts per row in two rows |
Position Unit |
Color 1 - Grey |
Customer Configuration 100A - Fixed customer-configuration tail |
The 24 terminal family provides screw connections in two rows, with a 3.81mm longitudinal stagger between rows. Choose /1 for narrow PCB solder pins or /2 for longer solder lugs with eyelets. The /A suffix adds mounting flanges. The 24B/1 has a separate body and contact arrangement and must be selected using its own ratings and footprint.
| Model | Termination | Mounting flanges | Position configuration |
|---|---|---|---|
| TB44-24/1 | PCB solder pins | No | Two rows of 2–24 contacts; 4–48 total |
| TB44-24/1/A | Yes | ||
| TB44-24/2 | Solder lugs with eyelets | No | |
| TB44-24/2/A | Yes | ||
| TB44-24B/1 | PCB solder pins, distinct two-level body | No standard /A flanges | Listed position code range 02–24; correspondence to total contacts is not established |
For 24B/1, the illustrated rows have unequal numbers of contacts. Specify both row counts and the complete part code before finalizing a board layout; the 02–24 code range must not be assumed to mean every total count from 2 to 24.
| Models | IEC category / pollution degree | Rated voltage | Rated current | Impulse voltage |
|---|---|---|---|---|
| 24/1, 24/1/A, 24/2, 24/2/A | III / 3 | 400V | 24A | 4kV |
| III / 2 | 600V | 6kV | ||
| II / 2 | ||||
| 24B/1 | III / 3 | Unspecified | Unspecified | 2.5kV |
| III / 2 | 250V | 8A | ||
| II / 2 | Unspecified | Unspecified |
| Models | UL group B | UL group D | UL wire range | Metric conductor specification |
|---|---|---|---|---|
| 24/1, 24/1/A, 24/2, 24/2/A | 15A / 300V | 10A / 300V | 22–14AWG | 1.5mm² nominal |
| 24B/1 | 8A / 300V | 0.5–2.5mm² solid, flexible or ferruled flexible | ||
UL group C values are unspecified. All models use M3 clamp screws with 0.5N·m tightening torque, have IP20 protection and an operating range of -40°C to +105°C. Strip length is unspecified.
| Component | 24/1, 24/1/A, 24/2, 24/2/A | 24B/1 |
|---|---|---|
| Housing | PA66, material group I, UL94V-0 | PBT, UL94V-0 |
| Pins | Tin-plated copper alloy, long and short elements | Gold-plated copper alloy |
| Clamps | Not separately specified | Gold-plated bronze, long and short elements |
| Primary screws | Nickel-plated steel | |
| Additional hardware | Not separately specified | Zinc-plated steel nut and second screw; nickel-plated steel washer and ring; copper-alloy second nut |
| Covers | PC, UL94V-2 | Two PC cover components, UL94V-2 |
| Label | Paper | Unspecified |
For the four standard models, let N be the total number of contacts across both equal rows. The contact span within one row is (N/2−1) × 7.62mm. Body depth is 19.5mm, body height is 22.7mm, transverse pin-row spacing is 9.2mm, and the longitudinal stagger is 3.81mm.
| Feature | 24/1 | 24/1/A | 24/2 | 24/2/A |
|---|---|---|---|---|
| Central body length | (N/2) × 7.62mm + 5.73mm | |||
| Overall length with flanges | Not applicable | (N/2) × 7.62mm + 18.53mm | Not applicable | (N/2) × 7.62mm + 18.53mm |
| Flange mounting centers | Not applicable | (N/2) × 7.62mm + 11.5mm | Not applicable | (N/2) × 7.62mm + 11.5mm |
| Tail length below body | 4.2±0.3mm | 9.8±0.3mm | ||
| Tail section | 1±0.1 × 0.8±0.1mm | 3.1±0.1 × 0.8±0.1mm | ||
| PCB opening | 1.56×1.36mm | 3.66×1.36mm | ||
| Lug eyelet width | Not applicable | 1.4mm | ||
| Flange slot width | Not applicable | 3mm | Not applicable | 3.1mm |
| Feature | 24B/1 dimension |
|---|---|
| Body depth | 18mm |
| Upper body height reference | 27.8mm |
| Lower base reference | 8mm |
| Transverse pin-row spacing | 8.4mm |
| Longitudinal stagger | 3.81mm |
| Pin-row edge reference | 4.8mm |
| Solder-tail length | 3.5±0.3mm |
| Pin section | 1±0.1 × 0.8±0.1mm |
| PCB hole dimensions | 1.43×1.36mm |
The length formulas in the 24B/1 drawing depend on its unequal row counts. Overall length is not assigned from the order code here.
Specify TB44, the full 24 model suffix, row counts, color and customer configuration. The /2 order format explicitly uses 2×XXP. The /1 formats use XXP, so state contacts per row and total contacts together. The Y100A suffix contains the color code and customer requirements.
| Field | Code meanings |
|---|---|
| Color Y | 1 grey; 2 blue; 3 black; 4 green; 5 orange; 6 red; 7 transparent; 8 yellow; 9 white |
| General screw-head field | 0 slotted; 1 cross-head |
| General clamp-position field | 0 screw down; 1 screw up |
| General standard suffix | 0A |
