Datasheet

1. Scope
This specification shall cover the characteristics of the ceramic resonator ZTB480EC.
2. Specification no.: CQ2.882.480
3. Part no.: ZTB480EC
4. Electrical specification
4-1
Oscillation frequency (Fosc)
480kHz ± 2.0kHz
4-2
Anti-resonant impedance (Ra)
120kΩ Min.
4-3
Resonant impedance (Ro)
20Ω Max.
4-4
Capacitance (Co)
250pF ± 20% Max.
4-5
Temperature characteristics of oscillation
frequency (-20°C to +80°C)
±0.3% Max. (from initial value)
4-6
Rating voltage 50V DC Max. (1 minute)
4-7
Maximum input voltage 15Vp-p
4-8
Insulation resistance
10
9
Ω Min. (at 10V DC)
4-9
Operation temperature
-20°C to +80°C
4-10
Storage temperature
-40°C to +85°C
4-11
Aging rate (for 10 years)
Fosc ± 0.5% Max.
5. Environmental characteristics
Test item Condition of test Performance
requirements
5-1
Moisture
Keep the resonator at 40°C ± 2°C and
90% RH for 1000 hours ± 4 hours.
Then release the resonator into room
condition for 1 hour prior to
measurement.
It shall fulfill the
specifications in Table 1.
5-2
Vibration Subject the resonator to the vibration for
1 hour in each of the following
directions: X, Y and Z. with the
amplitude of 1.5mm and frequency of
10Hz to 55Hz.
It shall fulfill the
specifications in Table 1.
5-3
Mechanical
shock
Drop the resonator randomly on a
concrete floor from the height of 1 meter
3 times.
It shall fulfill the
specifications in Table 1.
5-4
Resistance to
soldering heat
Dip the resonator terminals no closer
than 1.5mm into the solder bath at
350°C ± 10°C for 10 seconds ± 1
second. Then release the resonator into
room condition for 1 hour.
It shall fulfill the
specifications in Table 1.
5-5
Solderability Dip the resonator terminals no closer
than 1.5mm into the solder bath at
230°C ± 5°C for 10 seconds ± 1 second.
Min. 95% of lead
terminals’ surface shall
be covered with solder.
5-6
High
temperature
exposure
Subject the resonator to 80°C ± 5°C for
1000 hours ± 4 hours. Then release the
resonator into room condition for 1 hour.
It shall fulfill the
specifications in Table 1.