70-Position, 0.50 mm Pitch JMD Receptacle for High-Density FPC Interconnects
The JST 70R-JMDSS-G-1-TF(S)(LF)(SN) is a 70-position receptacle from the JMD series, designed for high-density board-to-FPC (flexible printed circuit) interconnects. The 0.020" (0.50 mm) pitch and dual-row layout pack 70 circuits into a compact footprint, making this connector suited for space-constrained designs in consumer electronics, handheld devices, and display interfaces where routing density is the primary constraint.
With a height above board of 0.122" (3.10 mm) and mated stacking heights of 4.5 mm, 5 mm, and 6 mm, this receptacle accommodates multiple mezzanine spacing options from a single PCB footprint. The 0.50 mm pitch demands careful trace routing — the narrow pitch limits per-circuit current to signal levels, not power delivery.
Position Count Variants in the JMD Series
The JMD series includes 70-position and 80-position receptacles at the same 0.50 mm pitch and 3.10 mm board height. The 70R-JMDSS-G-1-TF(S)(LF)(SN) carries 70 circuits; the 80R-JMDSS-G-1-TF and 80R-JMDSS-G-1-TF(LF)(SN) carry 80 positions. The choice between them is driven by the signal count on the FPC — the footprint and stack height are identical, so a board laid out for one can accept the other if the flex circuit is re-laid out for the higher count.