B4B-PH-K-S(LF)(SN)

B4B-PH-K-S(LF)(SN) is the 4-position top-entry through-hole header of JST's PH series — 2.0 mm pitch, vertical mount — as listed in JST's PH series catalogue, which notes this code displays (LF)(SN) on its label (JST's lead-free tin-plating designation, part of the orderable code). The series ratings from the same catalogue: current 2 A AC/DC (at AWG #24), voltage 100 V AC/DC, temperature range −40 °C to +105 °C, initial contact resistance 10 mΩ maximum, withstanding voltage 800 V AC for one minute. The selection point is the PH standard in 4 circuits — the battery and sensor connector of compact consumer and industrial devices, with a wider temperature range than the XH series. Selection advice: PH and XH are not interchangeable systems (2.0 mm against 2.5 mm pitch); the 2-position B2B-PH-K-S(LF)(SN) also listed here is the same series in two circuits.