2.54mm KF128 PCB Screw Terminal Blocks
2.54mm KF128 PCB Screw Terminal Blocks
This collection focuses on compact 2.54mm (0.1-inch) pitch KF128-style screw terminal blocks for through-hole PCB wiring. The core products offer fixed 2- to 16-position green terminal blocks, primarily in 5- or 10-piece packs, plus a 30-piece assortment. One mixed-pitch listing includes only 2P and 3P 2.54mm variants, and one product is an RJ45 breakout board fitted with a KF128-9P terminal.
What Is Available
- Fixed-position 2.54mm KF128 terminal blocks from 2P through 16P, depending on the listing
- A dedicated 4-position, 10-piece option
- 5-piece and 10-piece packs across selected position counts
- A 30-piece assortment containing multiple position counts
- 2P and 3P 2.54mm options inside a listing that also contains 3.5mm, 3.81mm, 5.0mm, 5.08mm, 7.5mm and 7.62mm variants
- An RJ45 female breakout board with a 9-position, 2.54mm-pitch screw terminal and vertical or horizontal RJ45 orientation
How to Select
- Confirm the PCB hole-to-hole pitch is 2.54mm, measured center to center.
- Choose the required number of independent circuits or positions.
- Check the complete footprint, including pin diameter, body width, body depth and edge clearance.
- Verify wire range, conductor preparation and tightening requirements for the exact product.
- Confirm package quantity; similar listings use different pack formats.
- For the mixed-pitch listing, explicitly select the 2.54mm variant.
Pitch Is Not the Complete Footprint
Although 2.54mm equals 0.1 inch, that spacing alone does not guarantee compatibility with a breadboard, DIP footprint, shield or another manufacturer’s terminal block. Body size, lead diameter, hole size, wire-entry direction and screwdriver access must also fit the board and enclosure. These terminal blocks are through-hole components, not plug-in breadboard jumpers.
Fixed Blocks vs. Spliceable Listings
The selected 2.54mm options should not be described as universally spliceable. One mixed-pitch source listing specifically states that its 2.54mm 2P and 3P versions cannot be combined in the same way as the larger-pitch variants. Order the required fixed position count unless the exact product documentation confirms side-by-side interlocking.
RJ45 Breakout Board Boundary
The RJ45 adapter is an assembled breakout board, not a loose terminal block. Its nine screw terminals provide access to board connections, but buyers must verify the board’s actual pin mapping before connecting Ethernet or other signals. Connector presence does not guarantee Ethernet-standard wiring, shielding, surge protection or network performance.
Electrical, Wire-Range and Compliance Limits
Several core listings state 150V, 6A and 26–18AWG, but other source text conflicts, including 24–12AWG, 300V/10A and an isolated 1000V field. These values cannot be applied to the entire collection. CE, RoHS and UL references also vary by listing and are not a collection-wide certification guarantee. Use the selected part’s verified datasheet and applicable creepage, clearance, PCB, conductor and environmental requirements.
Brand and Cross-Reference Boundaries
KF128 is used here as a product-format search term. Similar pitch or model wording does not establish that these products are made by, approved by or dimensionally identical to Phoenix Contact, WAGO or another manufacturer. Compare drawings before using an existing library footprint or substituting parts.
Frequently Asked Questions
Is 2.54mm exactly 0.1 inch?
Yes. 2.54mm equals 0.100 inch.
Do these fit every 2.54mm PCB footprint?
No. Verify lead dimensions, hole size, body envelope and wire-entry clearance.
Are all options spliceable?
No. The mixed-pitch listing states that its 2.54mm options are not spliceable like the larger-pitch versions.
Are all products rated 150V and 6A?
No. That value appears on several core listings, but conflicting source specifications require part-level verification.
Can these be used for mains wiring?
Do not decide from pitch or a marketplace rating alone. The complete component approval, PCB spacing, enclosure and applicable safety standard must support the intended circuit.
Is the RJ45 board a passive pin breakout?
Its listing describes an RJ45-to-screw-terminal breakout. Confirm the actual terminal mapping and board construction before use.
Ordering Checklist
Confirm 2.54mm pitch, position count, PCB hole diameter and footprint, body dimensions, wire-entry direction, conductor range, strip length, tightening method, pack quantity, required ratings and documentation.
