Molex KK254 header, breakaway, order code 0022288204, 20 positions, single row, 0.100" (2.54 mm) pitch, gold-plated mating contacts, through-hole right-angle, solder termination, unshrouded, UL94 V-0.
Molex 0022288204 KK254 Header, 20 Pos, 0.100" Pitch
MPN0022288204
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Molex KK254 header, breakaway, order code 0022288204, 20 positions, single row, 0.100" (2.54 mm) pitch, gold-plated mating contacts, through-hole right-angle, solder termination, unshrouded, UL94 V-0.
$1.0315Ref. price · indicative, final on quote
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Independent supplier — new & surplus connector stock· Listing updated Aug 2026
Specifications
| Parameter | Value |
|---|---|
| Series | KK254, 42377 |
| Type | Male Pin |
| Mounting | Through Hole, Right Angle |
| Connector type | Header, Breakaway |
| Fastening type | Push-Pull |
| Insulation color | Black |
| Insulation height | 0.098\" (2.50mm) |
| Insulation material | Polyamide (PA), Nylon, Glass Filled |
| Material flammability rating | UL94 V-0 |
| Style | Board to Board or Cable |
| Package | Bulk |
| Shrouding | Unshrouded |
All specifications
| Parameter | Value |
|---|---|
| Termination | Solder |
| Applications | Automotive, General Purpose, Medical, Telecommunications |
| Contact shape | Square |
| Rows | 1 |
| Pitch | 0.100\" (2.54mm) |
| Positions | 20 |
| Contact finish - post | Tin |
| Contact length - post | 0.120\" (3.05mm) |
| Contact finish - mating | Gold |
| Contact length - mating | 0.244\" (6.20mm) |
| Contact finish thickness - post | 100.0µin (2.54µm) |
| Contact finish thickness - mating | 30.0µin (0.76µm) |
Product details
Frequently asked questions
What does the split plating mean for the application?
Gold on the mating face (30 µin) handles repeated plug cycles and maintains low contact resistance at engagement; tin on the solder tail (100 µin) gives a solder-wettable surface that tolerates wave or hand soldering without gold scavenging.
What is the mating half for this header?
The 0022288204 mates with the matching KK254 receptacle housing or IDC socket in the same 0.100" pitch, 20-position single-row configuration. The header is unshrouded, so polarisation is handled by the mating housing's keying features — confirm those before specifying.
What is the insulation height and why does it matter?
Insulation height is 0.098" (2.50 mm) measured from the board surface to the underside of the housing. This is the clearance the header occupies above the PCB — relevant when routing traces or placing low-profile components underneath the header footprint.