FH453M is a dual-row surface-mount female header with 2–40 contacts per row, for 4–80 total contacts. The contact pitch is 0.8mm along each row and 1.2mm between rows. Select the mating header and PCB layout using both dimensions, together with the optional locating-post configuration.
| Characteristic | Value |
|---|---|
| Contact arrangement | 2×2–2×40 |
| Along-row pitch / row centres | 0.8mm / 1.2mm |
| Rated current | 3A |
| Contact resistance | ≤20mΩ |
| Insulation resistance | ≥1000MΩ |
| Dielectric withstand test | 500VAC RMS for 60 seconds |
| Operating temperature | -45°C to +110°C |
| Retention | ≥500gf |
| Insulator | High-temperature material with 30% glass fibre; base polymer unspecified; material group I; UL94V-0 |
| Contact material | Copper alloy |
The 500VAC rating describes the dielectric test; a separate working-voltage rating is unspecified.
The six fields after FH453M are contact arrangement, contact plating, housing colour, pickup support, packing type and post support.
| Field | Code | Selection |
|---|---|---|
| Contacts | 2×2–2×40 | Two rows, 2–40 positions in each row |
| Contact plating | 8 / 6 / 0 | Full gold flash / full tin / selective gold flash |
| Housing colour | B | Black |
| Pickup support | S / X | With pickup / without pickup |
| Packing | T / R / B | Tray / tape on reel / tube |
| Post support | S / X | With locating posts / without locating posts |
N is positions per row, or half the total contact count. The drawing distinguishes the 3mm front-body height from the 3.25mm side seating reference. Add the illustrated locating holes only for the version with posts.
| Reference | Dimension |
|---|---|
| Body length | (0.8N+0.26)mm |
| Contact span | 0.8(N−1)mm |
| Body width / front height | 3.05mm / 3mm |
| Side seating reference | 3.25mm |
| Terminal spread / section | 4.60mm / 0.20×0.30mm |
| Internal contact-point depth reference | 0.85mm REF |
| Locating posts | Ø0.65mm; 1mm projection; 0.8(N−2)mm centre spacing |
| PCB pads | 0.60mm width at 0.8mm pitch; 1.90mm inner transverse gap and 5.20mm outer transverse extent |
| PCB locating holes | Two Ø0.90mm holes at 0.8(N−2)mm centre spacing |
| PCB layout tolerance | ±0.05mm |
