7.5mm and 7.62mm PCB Terminal Blocks
7.5mm and 7.62mm PCB Terminal Blocks
This collection covers selected 7.5mm and 7.62mm pitch PCB terminal-block options across eight mixed listings. The range includes fixed through-hole screw blocks, 7.62mm cable-docking plug pairs, and top-entry or side-entry spring terminal blocks. Many products also contain smaller or larger pitches, so buyers must select the exact variant.
Formats in This Collection
- KF128-style 7.5mm and 7.62mm fixed screw blocks in 2P and 3P options
- 7620-series 7.62mm fixed screw blocks in 2P and 3P options
- A multi-pitch assortment containing 7.62mm 2P and 3P blocks
- 2EDGRK and 2EDGK 7.62mm cable-to-cable docking components, sold as female only, male pin only or complete pairs
- KF142V vertical/top-entry and KF142R right-angle/side-entry 7.62mm spring terminal blocks in selected 2P–12P sizes
7.5mm vs. 7.62mm Pitch
7.5mm and 7.62mm are different pitches. They are not interchangeable on the same PCB or within the same mating connector system. 7.62mm equals 0.3 inch, while 7.5mm does not. Verify center-to-center spacing and the complete mechanical drawing.
How to Select
- Choose the exact 7.5mm or 7.62mm variant.
- Select fixed screw, spring clamp or cable-docking construction.
- Choose the required number of positions.
- For spring blocks, select vertical/top entry or right-angle/side entry.
- For docking connectors, confirm female only, male only or complete male/female pairs.
- Check PCB hole pattern, lead diameter, body dimensions, wire-entry clearance and enclosure space.
- Verify conductor range, strip length, electrical ratings and approvals for the exact selected item.
Mixed-Pitch Boundaries
The listings also include 2.54mm, 3.5mm, 3.81mm, 5.0mm, 5.08mm, 6.35mm and 9.5mm variants. These options do not belong to the 7.5mm/7.62mm mechanical system. The assortment combines multiple pitches with different source ratings, and only its 7.62mm components are relevant here.
Fixed Blocks, Docking Pairs and Spring Clamps
Fixed screw blocks solder to the PCB and clamp wire directly. The 2EDGRK/2EDGK products form a detachable cable-docking connection and may be sold as one half or a pair. KF142V and KF142R blocks use spring termination and differ by entry direction. Equal pitch does not make these formats mutually compatible.
Electrical and Safety Limits
Current and voltage claims vary substantially. Some fixed blocks state 300V/30A and 22–10AWG; the assortment publishes separate UL and IEC values; other KF128 listings state 300V/10A; and spring listings use their own specifications. A universal 300V/24A or 450V/24A rating is not supported across all products. Wider pitch alone does not establish suitability for three-phase power, mains wiring, pollution-degree conditions or a specific creepage requirement. Validate the exact component and complete equipment design.
Brand and Compatibility Boundaries
KF128, 7620, 2EDGRK, 2EDGK, KF142V/KF142R and FFKDS are search and identification terms from the listings. They do not prove original manufacture, regulatory approval or interchangeability with similarly named parts. Confirm polarization, contact orientation, latch geometry, mating depth and drawings.
Frequently Asked Questions
Can a 7.5mm block replace a 7.62mm block?
No. The pitch difference causes PCB-hole misalignment.
Are all eight listings fixed screw blocks?
No. The range also includes detachable docking connectors and spring-clamp blocks.
Are all parts rated 24A?
No. Source ratings differ by product and terminal technology.
Does wider pitch automatically make a connector suitable for high voltage?
No. Safety depends on verified ratings, insulation, creepage, clearance, PCB layout, enclosure and applicable standards.
Do docking listings always include both halves?
No. Select female only, male only or a complete pair as required.
Ordering Checklist
Confirm exact pitch, terminal technology, positions, entry direction, plug or pair configuration, PCB footprint, mating geometry, conductor range, package quantity, ratings and compliance documentation.
