SAW Components Data Sheet R 821 SAW Components R 821 Resonator 315,00 MHz Data Sheet Ceramic package QCC4A Features 1,2 ■ 1-port resonator ■ Provides reliable, fundamental mode, quartz fre- 1 2 0,8 4 quency stabilization i.e. in transmitters or local oscillators ■ Protection layer: Elpas ■ AEC-Q200 qualified component family 3 1,45 0,5 Terminals 3,5 ■ Ni, gold plated 5,0 Dimensions in mm, approx. weight 0,1 g Pin configuration C1 1 3 2,4 Input Output, grounded in 1-port conf. Ground (case) R1 L1 C0 1 Type R 821 Ordering code B39321-R 821-H210 Marking and Package Packing according to according to C61157-A7-A86 F61074-V8175-Z000 Electrostatic Sensitive Device (ESD) Maximum ratings Operable temperature range Storage temperature range DC voltage Source power TA Tstg VDC Ps –40/+125 –40/+125 12 0 2 ˚C ˚C V dBm between any terminals Oct 11, 2004 3 SAW Components R 821 Resonator 315,00 MHz Data Sheet Characteristics TA = 25 ˚C ZS = 50 Ω ZL = 50 Ω Reference temperature: Terminating source impedance: Terminating load impedance: min. Center fc frequency 1) Minimum insertion attenuation Unloaded quality factor Temperature coefficient of frequency 3) Turnover temperature 1) Center 2) If max. 315,00 αmin — 1,5 1,9 QU 9400 13000 — — — C1 L1 R1 C0 — — — — 2,136 119,5 18 2,8 — — 25 — fF µH Ω pF TCf — –0,032 — ppm/K2 T0 20 — 50 ˚C Ageing of fc Equivalent circuit elements Motional capacitance Motional inductance Motional resistance Parallel capacitance 2) typ. 314,925 315,075 MHz dB –50/+50 ppm frequency is defined as maximum of the real part of the admittance used in two port configuration (pin 1-input, pin 3-output) C0 is reduced by approx. 0,3 pF. 3)Temperature dependence of fc: fc(TA) = fc(T0)(1 + TCf(TA – T0)2) 3 Oct 11, 2004 SAW Components R 821 Resonator 315,00 MHz Data Sheet Published by EPCOS AG Surface Acoustic Wave Components Division, SAW CE AE PD P.O. Box 80 17 09, D-81617 München EPCOS AG 2004. All Rights Reserved. Reproduction, publication and dissemination of this brochure and the information contained therein without EPCOS’ prior express consent is prohibited. The information contained in this brochure describes the type of component and shall not be considered as guaranteed characteristics. Purchase orders are subject to the General Conditions for the Supply of Products and Services of the Electrical and Electronics Industry recommended by the ZVEI (German Electrical and Electronic Manufacturers’ Association), unless otherwise agreed. This brochure replaces the previous edition. For questions on technology, prices and delivery please contact the Sales Offices of EPCOS AG or the international Representatives. Due to technical requirements components may contain dangerous substances. For information on the type in question please also contact one of our Sales Offices. 4 Oct 11, 2004