| Part Number: | ULO | - | TB18 | - | 141V | / | 2.54 | - | 02 | P | - | 4 | 000A |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Explanation: |
Manufacturer ULO - ULO Electronics |
Series TB18 - 2.54mm spring clamp terminal blocks |
Model 141V - Vertical spring clamp configuration |
Pitch 2.54 - 2.54mm |
Poles 02–24 - 2–24 poles, written with two digits |
Pole Unit P - Poles |
Color 1 - Grey |
Customer Code 000A - Fixed customer requirements code shown in the drawing |
TB18-141V/2.54 and TB18-141R/2.54 provide spring clamp wire connections in two mounting orientations. Both have 2.54mm pole pitch, one connection row and two solder pins per pole. Select V or R to match the board layout and access to the wire openings and levers.
| Characteristic | Both models |
|---|---|
| Pole pitch | 2.54mm |
| Pole count | 2–24 |
| Connection | Straight-through spring connection with lever |
| Mounting | Through-hole PCB soldering |
| Protection level | IP20 |
| Operating temperature | -40°C to +105°C |
Both models are rated 6A at 130V under IEC overvoltage category III, pollution degree 2. UL ratings and conductor ranges are listed separately.
| IEC overvoltage category | Pollution degree | Rated voltage | Rated impulse voltage |
|---|---|---|---|
| III | 3 | Not specified | Not specified |
| 2 | 130V | 2.5kV | |
| II | Not specified | Not specified |
| UL use group | Rated current | Rated voltage |
|---|---|---|
| B | 2A | 150V |
| C | ||
| D |
| Wiring parameter | Both models |
|---|---|
| UL conductor range | 24–20AWG |
| Solid conductor | 0.2–1.0mm² |
| Flexible conductor | 0.2–1.0mm² |
| Flexible conductor with ferrule | 0.2–1.0mm² |
| Stripping length | 11mm |
| Clamping screw and torque | Not applicable to the spring connection |
| Separate fixing screw and torque | Not specified |
| Component | 141V | 141R |
|---|---|---|
| Housing, cover and lever | PA66, UL94V-0 | |
| Insulation material group | I | |
| Conductive component specified by model | Tin-plated phosphor-bronze clamp | Tin-plated brass solder pin |
| Spring | Stainless steel | Stainless-steel coil spring |
| Material compliance | RoHS compliance declared | |
Certificate file numbers, package quantities and accessories are unspecified.
| Field | Selection |
|---|---|
| Series | TB18 |
| Model and pitch | 141V/2.54 or 141R/2.54 |
| Pole count | 02P–24P |
| Colour code | 1 grey; 2 blue; 3 black; 4 green; 5 orange; 6 red; 7 transparent; 8 yellow; 9 white |
| Customer suffix | 000A after the colour field |
| General standard-product field | 0A |
| General screw fields | The shared legend defines 0 slot / 1 cross and 0 screw down / 1 screw up; these do not introduce screw connections on 141V or 141R |
The general legend's two-digit 02–99 pole field covers a wider terminal range. These models are specified for 2–24 poles.
N is the pole count. Dimensions below are in millimetres. The V and R housings have different height and depth references; use the matching outline and footprint.
| Dimension | TB18-141V/2.54 | TB18-141R/2.54 |
|---|---|---|
| Height excluding pins | 13.60 | 12.60 |
| Housing depth | 12.60 | 13.60 |
| Overall length | 12.70 for the depicted four-pole outline; other pole-count lengths are not dimensioned | 2.54 × (N + 1) |
| First-to-last pin span | 2.54 × (N − 1) | |
| Solder-tail projection | 3.50 | |
| Pin section | 0.80 × 0.50 | |
| PCB hole diameter | Ø1.20 | |
| PCB pin-row spacing | 5.08 | |
| Pin-row distance from indicated upper outline edge | 4.62 | Not dimensioned |
| Pin-row distance from indicated opposite body edge | 2.90 | |
| Indicated end-to-first-pin offset | Not dimensioned | 1.80 |


Individual dimension tolerances take precedence over the 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 |