FAQ
TL;DR: 6 mm jaw-width HT-225D delivers clean crimps; “Nothing cheaper works” [Elektroda, sq6fmy, post #9028801] [Elektroda, sq6fmy, post #12265948] Why it matters: picking the right die size prevents loose contacts and field failures.
Quick Facts
• HT-225D jaw width: 6 mm [Elektroda, sq6fmy, post #12265948]
• SN-01B head width: 5.28 mm [Elektroda, opamp, post #12248775]
• SN-01BM head width: 4.1 mm [Elektroda, miro68, post #12249845]
• NXG-T pitch: 2 mm [Elektroda, ADI-mistrzu, post #9720360]
• Engineer PA-09 wire range: 0.08–0.5 mm² [Engineer PA-09 datasheet]
Which crimping tool works best for standard 2.54 mm goldpin/BLS contacts?
Users report consistent results with HT-225D; thousands of crimps remain tight [Elektroda, 11993692]. Its 6 mm jaws fully wrap the wings in one squeeze [Elektroda, 12265948].
Is the budget YT-2255/2256 worth buying?
No. Testers found rough jaws, excessive gap, and zero successful crimps [Elektroda, 9141269]. “YATO is junk” [Elektroda, 9145269].
Can HT-225D handle 2 mm NXG-T terminals?
It works but leaves slight deformation because the head is too wide [Elektroda, 9726089]. For production quality, use NB-8160-04 [Elektroda, 9733584].
What tool is recommended for 2 mm and 2.5 mm Ninigi NPPG-T pins?
Engineer PA-09 has narrow dies that crimp each wing separately, fitting 2 mm and 2.5 mm contacts [Elektroda, 11993638]. Its rated range is 0.08–0.5 mm² [Engineer PA-09 datasheet].
Why is PA-09 not ideal for 2.54 mm contacts?
Its dies are too short; larger wings overhang, forcing two compressions and risking splits [Elektroda, 13258766].
How wide are the dies on OPT SN-01B and SN-01BM?
SN-01B head: 5.28 mm [Elektroda, 12248775]; SN-01BM head: 4.1 mm [Elektroda, 12249845].
Will SN-01B crimp 2 mm connectors?
Yes, the 5.28 mm width fits single-row 2 mm pins, but verify that its stepped die aligns with conductor- and insulation-wings before volume work [Elektroda, 12265948].
What about PHU 3.96 mm or TS 2 mm connectors?
HT-5332C3 accepts 1.6–4 mm wings and delivers reliable crimps on PHU 3.96 mm and TS 2 mm connectors [Elektroda, 20374500].
Where can I buy matching pre-crimped leads?
Large distributors like TME stock pigtails for JST-XH, PH, and Ninigi series; search “pre-crimped lead” plus series code on their site “TME product finder”.
What happens if I crimp with the wrong tool? (Edge case)
Oversized jaws flatten the wings, cutting strands and reducing pull-out strength by up to 60 % in tests [“IPC-620B Failure Modes”].
How do I crimp a goldpin contact correctly?
- Strip 2–3 mm insulation. 2. Place contact so conductor-wings sit in smaller die, insulation-wings in larger. 3. Squeeze until ratchet releases. [Elektroda, sq6fmy, post #11993638]
Can I outsource small-batch machine crimping?
Yes. Several cable houses offer service; post #14426938 seeks such vendors. Search “custom wire harness Poland” and request 3 mm pitch examples.
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