SMD Tuning Fork Crystal Resonators / kHz Band Crystal Resonators DST311S/DST310S Features 3215 size miniature and lightweight SMD tuning fork crystal resonator with a low profile of 0.75mm. A ceramic package with a metal lid providing high precision and Pb-Free reliability. Metal lid connected to GND terminal to reduce EMI (DST311S). Noise sensitive applications (smart meter etc.) (DST311S). Series Resistance 50k max. available. AEC-Q200 Compliant (DST310S ) Actual size DST311S RoHS Compliant Applications Mobile communications, radio-controlled clock, digital home appliances. Automotive applications such as multimedia devices (AEC-Q200 Compliant). DST310S Actual size Standard Specification Item Type DST311S DST310S Frequency Range 32.768kHz Load Capacitance 7pF, 9pF, 12.5pF Drive Level 0.2W1.0W max. 20x10-6at 25 Frequency Tolerance Series Resistance 50k max./80k max. Turnover Temperature 255 -0.04x10-6/ 2 max. Parabolic Coefficient Operating Temperature Range -40 to 85 Storage Temperature Range -40 to 85 Shunt Capacitance 0.9pF typ. 1.3pF typ. Packing Unit (1) 3000pcs./reel180 (1)Moisture prevention packing is unnecessary. Moisture Sensitivity Level : LEVEL 1(IPC/JEDEC J-STD-033) DST311S mm DST310S Internal Connections TopView Top View Dimensions 3.20.1 #4 #3 #1 #2 Country LotNo. 1&4connectedtoquartzelement 2&3connectedtothecover 2&3recommendedGNDconnection Logo Recommended Land Pattern Top View 2.35 2.5 1.05 0.65 Country Top View 2.5 2.35 0.75 0.4 #4 LotNo. Recommended Land Pattern TopView #2 0.9 #1 TopView Frequency #3 1.8 Frequency 0.750.1 Logo Internal Connections Top View TopView 701 1.50.1 D A 701 C 1.3 1.50.1 3.20.1 mm 0.750.1 Dimensions Index Consult our sales representative for other specifications. 1.0 0.65 1.0