3

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Pin assignment

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Signal Integrity

To match 100 ohm differential impedance and to reduce crosstalk, a staggered GSSG pin assignment is recommended for

FX18. (G=ground and S=signal)

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Function Chart

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Right Angle Receptacle

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Right Angle Header

【 FX18-**S-0.8SH 】

【 FX18-**P-0.8SH 】

【 FX18-**P-0.8SV 】

【 FX18-**S-0.8SV15 】

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Straight Header

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Straight Receptacle

【 FX18-**S-0.8SV20 】

【 FX18-**P-0.8SV10 】

Coplanar

connection

Vertical connection

Stacking

connection

Contact

No.1

Contact

No.21

Contact

No.20

Contact

No.40

Outer row

Inner row

Signal pin

Diff pair

Ground pin

Pin assignment ( In case of 40 pos. )

Cross section of mating (coplanar connection)

Inner row

Outer row

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Stacking connections Heights

Stacking Variation

FX18-**P-0.8SV

FX18-**P-0.8SV10

FX18-**S-0.8SV15

15mm

25mm

FX18-**S-0.8SV20

20mm

30mm

Straight Receptacle

FX18-**S-0.8SV**

Straight Header

FX18-**P-0.8SV**