| Part Number: | ULO | - | TB26 | - | 245 | / | 5.0 | - | 02 | P | - | 4 | 000A |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Explanation: |
Brand ULO - Product brand |
Series Code TB26 - 245/5.0 |
Model 245 - Single-level spring-cage PCB terminal block; this breakdown covers single-level versions |
Pitch 5.0 - 5mm; TB26, 2-24 poles |
Positions 01-24 - Pole count as a two-digit code; select only the range listed for the chosen pitch |
Position Unit P - Poles |
Color 1 - Gray |
Product Version 000A - Standard product |
The 245 family provides fixed PCB connections using stainless-steel springs. Single-level blocks cover 5mm, 5.08mm, 7.5mm, 7.62mm, 10mm and 10.16mm pitches. H2 and H3 versions provide two and three connection levels at 5mm or 5.08mm. Match the complete model, pole count and PCB pattern before selecting a block.
| Model | Pitch | Connection levels | Positions per level | Ordering series code |
|---|---|---|---|---|
| 245/5.0 | 5mm | 1 | 2–24 | TB26 |
| 245H2/5.0 | 2 | |||
| 245H3/5.0 | 3 | |||
| 245/5.08 | 5.08mm | 1 | TB32 | |
| 245H2/5.08 | 2 | |||
| 245H3/5.08 | 3 | |||
| 245/7.5 | 7.5mm | 1 | 2–16 | TB38 |
| 245/7.62 | 7.62mm | 1–16 | TB44 | |
| 245/10.0 | 10mm | TB45 | ||
| 245/10.16 | 10.16mm |
Apply the rating for the specified overvoltage category and pollution degree. Single-level blocks have a 17A IEC rating; H2 and H3 versions have an 18A IEC rating. These values do not replace the separate UL use-group ratings.
| Models | Overvoltage category | Pollution degree | IEC current | Rated voltage | Impulse voltage |
|---|---|---|---|---|---|
| 245/5.0, 245/5.08 | III | 3 | 17A | 320V | 4kV |
| 2 | |||||
| II | 630V | ||||
| 245H2/5.0, 245H3/5.0, 245H2/5.08, 245H3/5.08 | III | 18A | 450V | 2.5kV | |
| 245/7.5, 245/7.62, 245/10.0, 245/10.16 | 17A | 750V | 4kV |
| Models | UL group B | UL group C | UL group D | UL conductor range |
|---|---|---|---|---|
| All single-level 245 models | 15A, 300V | Not specified | 10A, 300V | 28–12AWG |
| All 245H2 and 245H3 models | 10A, 300V |
| Connection parameter | All models |
|---|---|
| Connection method | Spring cage |
| Solid conductor cross-section | 0.2–2.5mm² |
| Flexible conductor cross-section | 0.2–2.5mm² |
| Flexible conductor with ferrule | 0.2–2.5mm² |
| Stripping length | 5–6mm |
| Connection or fixing screw torque | Not applicable to the spring-cage connection |
| Component or property | Specification |
|---|---|
| Single-level housing and cover | PA66, UL94V-0 |
| Partition on 7.5mm, 7.62mm, 10mm and 10.16mm single-level versions | PA66, UL94V-0 |
| H2 and H3 inner housing, side housing and cover | PA66, UL94V-0 |
| Single-level solder pins | Tin-plated brass |
| H2 and H3 pin header 1 | Tin-plated copper alloy |
| H2 pin header 2; H3 pin headers 2 and 3 | Tin-plated copper |
| Spring | Stainless steel |
| Insulation material group | I |
| Protection level | IP20 |
| Operating temperature | -40°C to 105°C |
| Material compliance | RoHS |
All dimensions below are in millimetres. For single-level models, N is the number of poles. Each pole has two solder pins on PCB rows 5mm apart. The body is 14.1mm deep and 12.8mm high, with 0.7×0.75mm pins and 1.2mm PCB holes. Pin projection is 4±0.3mm, except that the 7.5mm outline specifies 4mm without an individual tolerance.
| Model | Body length | First-to-last pole span | Right end reference | PCB row spacing | Row-to-edge reference |
|---|---|---|---|---|---|
| 245/5.0 | 5N+1 | 5(N−1) | 2.85 | 5 | 5 |
| 245/5.08 | 5.08N+1 | 5.08(N−1) | 2.93 | ||
| 245/7.5 | 7.5(N−1)+6 | 7.5(N−1) | 2.85 | ||
| 245/7.62 | 7.62(N−1)+6 | 7.62(N−1) | |||
| 245/10.0 | 10(N−1)+6 | 10(N−1) | |||
| 245/10.16 | 10.16(N−1)+6.16 | 10.16(N−1) |
For the 5mm H2 and H3 drawings, N denotes total contacts across both or all three levels. For the 5.08mm drawings, N denotes positions per level. H2 has one PCB pin per connection on two rows; H3 has one per connection on three rows. All use 0.7×0.75mm pins projecting 4±0.3mm below the housing.
| Model | Body length | Pole span per level | Body depth | Body height | PCB row spacing | PCB hole diameter |
|---|---|---|---|---|---|---|
| 245H2/5.0 | 5(N/2)+1 | 5(N/2−1) | 21 | 26.5 | 15 | 1.2 |
| 245H3/5.0 | 5(N/3)+1 | 5(N/3−1) | 31 | 40 | 10 and 15 | 1.3 |
| 245H2/5.08 | 5.08N+1 | 5.08(N−1) | 21 | 26.5 | 15 | 1.2 |
| 245H3/5.08 | 31 | 40 | 10 and 15 | 1.3 |
The 5mm H2 and H3 outlines show a 2.85mm longitudinal end reference. H2 has a 1.9mm transverse edge reference. H3 shows 4.1mm at one side; the 5.08mm PCB layout also dimensions the opposite edge at 1.9mm. Use the corresponding drawing to orient the staggered levels and PCB pattern.
The following general tolerances apply where an individual dimension has no specific tolerance. Ranges and deviations are in millimetres.
| Dimension range | Total pitch tolerance | Nominal dimension tolerance |
|---|---|---|
| 0–30 | ±0.18 | ±0.20 |
| >30–53 | ±0.20 | ±0.25 |
| >53–70 | ±0.25 | ±0.30 |
| >70–90 | ±0.30 | ±0.35 |
| >90–115 | ±0.35 | ±0.44 |
| >115–150 | ±0.44 | ±0.55 |
| >150–200 | ±0.55 | ±0.70 |
| >200–250 | ±0.70 | ±0.80 |
| >250–320 | ±0.75 | ±0.90 |
| Geometric property | Range | Tolerance |
|---|---|---|
| Perpendicularity | Up to 10mm | 0.2mm |
| Over 10mm | 0.3mm | |
| Symmetry | All dimensions | 0.3mm |
| Straightness | Up to 100mm | 0.2mm |
| Parallelism | 100–150mm | 0.3mm |
| Over 150mm | 0.5mm |
Select the series code, complete model and pitch from the model table. Use XXP for single-level pole counts, 2×XXP for H2 and 3×XXP for H3; XX is the number of positions on one level. The standard suffix is Y000A, with Y representing the colour code. Available pole counts follow the model-specific ranges above.
| Colour code | Colour |
|---|---|
| 1 | Grey |
| 2 | Blue |
| 3 | Black |
| 4 | Green |
| 5 | Orange |
| 6 | Red |
| 7 | Transparent |
| 8 | Yellow |
| 9 | White |
