NS-21R Datasheet, PDF (1/2 Pages) Epson ToYoCom – SAW RESONATOR

Crystal unit
SAW RESONATOR
For Automotive
NS - 21R
Frequency range : 300 MHz to 500 MHz
External dimensions : 2.5 × 2.0 × 0.86 mm
Overtone order
: Fundamental
Applications
: Remote keyless entry(RKE)
(Please contact us for except RKE use.)
High reliability and excellent temperature characteristic.
The small package size.
Actual size
Product Number (please contact us)
Q25NS21Rxxxxx00
Specifications (characteristics)
Item
Nominal frequency range
Storage temperature
Operating temperature
Level of drive
Frequency tolerance (standard)
Symbol
f_nom
T_stg
T_use
DL
f_tol
Turnover temperature
Ti
Parabolic coefficient
Harmonic ratio
Motional resistance(ESR)
Frequency aging
Shock resistance
B
RS/ R1
R1
f_age
S.R.
Specifications
300 MHz to 500 MHz
-40 C to +85 C
-40 C to +85 C
2 mW Max.
±50 × 10^-6, ±100 × 10^-6, ±150 × 10^-6
+20 C 20 C
-(1.6±0.4) × 10^-8 / °C²
2 Min.
20  Max.
±10 × 10^-6 / year Max.
±10 × 10^-6 Max.
Conditions / Remarks
Please contact us about available frequencies.
Storage as single product.
+25 C
Please contact us for inquires about
Peak temperature
+25 C
Nine drops on a concrete surface from 1500 mm
Product name
(Standard form)
NS-21R 312.00000MHz 99.0 +50.0-50.0
①
②
③
④
①Model ②Frequency ③Load capacitance(99.0=)
④Frequency tolerance(× 10^-6, +25 C)
External dimensions
(Unit:mm)ç ç ç Footprint (Recommended)
(Unit:mm)ç
2.50.1
#4
#3
Marking
#1
#2
0.1
#3
#4
C0.3
#2
0.9 ^#1
Pin map
Pin Connection
1
Input
2
GND
3
Output
4
GND
#2,#4 are connected to the cover.
1.7
1.2