Ceramic Resonators (Type EC)
Ceramic Resonators
(Built-In Capacitor Type)
Type:
EC (2.0 to 50.0 MHz)
Ceramic Resonator, Built-In Capacitor Type, includes
two capacitors constructing “Colpitts oscillation circuits”.
■ Features
■ Recommended Applications
● Wide range of oscillation frequency: 2.0 to 50 MHz
● No need for capacitors in oscillation circuit
● High accuracy, high stability
Initial frequency tolerance: ±0.3 to 0.5 %
● Excellent temperature characteristics (Nominal Freq.:
3.58 to 50 MHz)
Frequency drift: ±0.1 % max. –10 to 60 °C
● Saves height on P.C. board (Height: 5 mm max.)
● Taped version is available for automatic insertion
● RoHS compliant
● Clock pulse generator for micro-processors
● Carrier between telecommunication equipment
(telephone to telephone, personal computer to printer)
■ Handling Precautions (See Page 187 to 188)
■ Packaging Specifications
See Page 208
■ Explanation of Part Numbers
1
2
3
4
5
E
F
O
E
6
7
8
9
10
11
12
C
Design No.
Product Code
EFO Ceramic Resonators
Type
EC Built-In Capacitors Type
(Case Type with 3 Terminals)
Nominal Oscillation
Frequency
4004
2005
4.0 MHz
20.0 MHz
(Example)
A
T
S
Frequency
Tolerance
Packaging Style
Bulk Pack
Taping
Lead Forming
3
4
5
±0.3 %
±0.5 %
±1.0 %
■ Ratings and Characteristics
Part Number
Oscillation
Frequency
Loop Gain
(G)
Temperature
Characteristics
14 dB
Maximum Frequency drift:
±0.6 %, –10 to 60 °C
(±1.0 %, –20 to 80 °C)
Bulk Pack
Taping
EFOEC2004A5
EFOEC2004T5
2.00 MHz ±1.0 %
EFOEC3584A4
EFOEC3584T4
3.58 MHz ±0.5 %
EFOEC4004A4
EFOEC4004T4
4.00 MHz ±0.5 %
EFOEC4194A4
EFOEC4194T4
4.19 MHz ±0.5 %
EFOEC5004A4
EFOEC5004T4
5.00 MHz ±0.5 %
EFOEC6004A4
EFOEC6004T4
6.00 MHz ±0.5 %
EFOEC8004A4
EFOEC8004T4
8.00 MHz ±0.5 %
EFOEC1005A4
EFOEC1005T4
10.00 MHz ±0.5 %
6 dB
EFOEC2005A4
EFOEC2005T4
20.00 MHz ±0.5 %
14 dB
EFOEC3385A4
EFOEC3385T4
33.868 MHz ±0.5 %
8 dB
12 dB
10 dB
● Operating Temperature Range: –20 to 80 °C
● Frequency Drift: 0.3 % max./10 years
Maximum frequency drift:
±0.1 %, –10 to 60 °C
(±0.2 %, –20 to 80 °C)
Note : If customer used other frequency, please ask us separately.
Design and specifications are each subject to change without notice. Ask factory for the current technical specifications before purchase and/or use.
Should a safety concern arise regarding this product, please be sure to contact us immediately.
Feb. 2006
