100 MHz fixed-frequency reference in a 7x5 QFM
The LMK61E2-100M00SIAR is a 100 MHz clock oscillator from Texas Instruments, built in a 6-SMD Module package (6-QFM, 7x5 mm footprint).
The 162 mA supply current is the total draw from that rail; it sets the minimum current rating for the LDO or switching regulator feeding this oscillator, and it contributes to the local thermal rise inside the 7x5 mm QFM package. In a dense board with multiple oscillators, the aggregate current on the 3.3 V plane needs to be summed for the PSU budget.
Industrial temperature grade — deployment envelope
The 100 MHz output holds its frequency accuracy across this range — the datasheet's frequency stability specification (not carried in this listing) would be the next check for a PLL that cannot tolerate more than ±50 ppm drift.
Package and footprint — layout notes
The 6-SMD Module package is a 6-QFM (Quad Flatpack No-lead) measuring 7x5 mm. The six pads are on the bottom of the package — no leads to bend or break. The land pattern should follow TI's recommended footprint for the LMK61E2 family, which typically includes a large thermal pad underneath the package body. The 0.50 mm pad pitch is fine for standard SMT assembly, but the exposed pad requires a solder paste stencil aperture that covers at least 50% of the pad area to avoid voids.