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RKM - 18 ( 155.520 MHz )

Specifications

Miniature Fundamental Mode Crystal Units



Surface mount package TSS-2   Scale 4:1
PARAMETERS VALUES
Frequency range, MHz 155.520
Calibration tolerance at 25 °C, D f/fn, ppm ± 50 ~ ± 100
Temperature stability, D f/fn, ppm ± 25
Operating temperature range, ° C -40 to +85 °C
Circuit condition: series resonance or load capacitance, CL, pF 8 ~ 30
Equivalent series resistance, typ./max,
 R1 Ohm		 10/15
Shunt capacitance, Ñ0, pF 1.5 ~ 2.0
Capacitance coefficient r = Ñ0/Ñ1 400
Quality factor, Q 10 ~ 25
Aging, first year, D f/fn, ppm (max) ± 20
Drive level, mW, (max) 0,1
Features
Fundamental mode
Inverted mesa crystal
Miniature package

These fundamental mode crystal units are based on inverted mesa blanks having unique surface finish quality provided by an original ion-thinning technology. Are applied in voltage controlled crystal oscillators of the system of SONET communication.