What This 20-Pin SMT Header Fits
The 20021121-00020C4LF: The 1.27mm row spacing matches the mating pitch, so the receptacle footprint mirrors the header layout. The tin-plated solder tails (50µin) are standard for SMT reflow; the gold is only where the contact wipes.
Lifecycle status is Active with ROHS3 compliance — no end-of-life notice, no lead-free exemption expiry to track.
Mating Half and Board-to-Board Fit
As an unshrouded header, this mates with any Minitek127 1.27mm pitch receptacle that has 20 positions in a dual-row layout — typically a socket with a similar pin-out. The 0.120" (3.05mm) mating pin length gives enough wipe for a standard receptacle contact beam — the receptacle should have a mating depth of at least 3mm to fully engage the gold interface.
What It Does Not Do — And Why That Matters
This is a signal header, not a power interconnect. The unshrouded design also means no polarization keying; if the mating receptacle is inserted backwards, the pins can bend. Verify orientation in the assembly fixture.