• Package size: 2.0 mm x 1.2 mm x 0.5 mm
• Frequency: 32.768 kHz
• Temperature range: -40°C ~ 85°C
• Load capacitance: 12.5 pF
• Tolerance: ±20 ppm
• ESR: 50 kΩ Max.
• RoHS 3 and REACH compliant

Proudly known for their 32.768 kHz tuning fork crystals, ECS Inc. was the first to offer the world’s smallest SMD tuning fork crystal in the frequency control industry. The groundbreaking parts were the ECX-1210 and the ECX-1210B offering a 1.2mm x 1.0mm package in two- and four-pad options. The SMD tuning fork is ideal for wearable, drug delivery devices and hearing aids. The ECX-12RR is a compact surface mount 32.768 kHz tuning fork that comes in a 2.0 mm x 1.2 mm x 0.5 mm package. The ECX-12RR offers a low ESR of 50 kΩ Max. and tolerance of ±20 ppm available over the standard industrial temperature range of -40°C ~ 85°C. This component is ideal for industrial, IoT and wearable applications. This component is recommended for the STM32 via the AN2867.