CDB455C4 Datasheet, PDF (2/3 Pages) Shoulder Electronics Limited. – This specification is applicable to ceramic discriminator CDB455C4 use for SANYO IC LA8610.

1. Application
This specification is applicable to ceramic discriminator CDB455C4 use for SANYO IC
LA8610.
2. Electrical Characteristics
This discriminator must need following performance.
2-1) Anti-resonate frequency (Fa) : 470±1.5 kHz.
2-2) Resonant Impedance (Ri) : 300 ΩMax.
2-3) ΔF(Fa-Fr)
: 43±2.0 kHz.
Fr: resonant frequency
2-4) Capacitance (at 1 kHz)
: 140 pF±20%.
3. Environmental Test
3-1) Temperature Characteristics
At the temperature range of 25±5℃,the discriminators shall meet the electrical properties
in item 2-1~2-4,and at –20~+80℃ the Anti-resonant frequency shall not very more than
±2.0 kHz.
3-2) Vibration
The discriminators shall suffer no mechanical damage and meet the 2-1~2-4 electrical
Characteristics after being vibrated with a sine wave motion having an amplitude of 1.0
mm from 10 to 55KHz per 1 minute, applied for 30 minutes in three different directions
(x,y,z).
3-3) Humidity
The discriminators shall be place in a humidity chamber at 90~95% relative
humidity and 40~45℃ for a period of minimum 8 hours. The discriminators shall be left
for the period of more than 24 hours at the room temperature after its removal from the
humidity chamber.The discriminators shall meet the 2-1~2-4 electrical characteristics and
the appearance of discriminators is to be normal.
3-4) Dropped Shock
The discriminators shall suffer no mechanical damage and meet the 2-1~2-4
electrical characteristics outlined on this specification after being dropped 3 times to
concrete floor from the 30 cm height.
3-5) Solder ability
The terminal surface shall be covered over 3/4 by the solder after dipped the leads
into 230±5℃ solder pot containing (Sn 63% Pb 37%) molten alloy for 3±1 seconds.
3-6) Soldering Heat-Resistance
The discriminators shall be assembled to the 1 mm “through-hole” P.C. bored and placed in
solder solution (Sn63% Pb37%) at 250±10℃ for duration of 3±1 seconds. After removal
from the solder solution chamber, the discriminators may be cleaned with chlorothene and
left for more then 24 hours at the room temperature. The discriminators shall meet the
2-1~2-4 electrical characteristics are to be normal.
3-7) Lead Strength
The discriminators shall suffer no mechanical damage and meet the 2-1~2-4 electrical
characteristics outlined on this specification after static load of 1.0 kg for 1 minute is
applied in the direction of the insertion side.
3-8) Temperature
The discriminators shall be held at each cycle consist of three temperature
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