LTM455CU datasheet(4/4 Pages) SHOULDER

4 / 4 page

FILTER INTO THE ROOM CONDITIONS FOR 1 TO 2 HOURS PRIOR

THE MEASUREMENT.

IT SHALL

FULFILL

THE SPECIFICATIONS IN

TABLE 1.

6-4

TEMPERATURE CYCLING

SUBJECT

THE

FILTER

TO A LOW TEMPERATURE OF -55℃ FOR 30

MINUTES. FOLLOWSING BY A HIGH TEMPERATURE

OF +85℃ FOR 30

MINUTES. THEN RELEASE THE FILTER INTO THE ROOM

CONDITIONS

FOR 1 TO 2 HOURS PRIOR TO THE MESUREMENT. IT SHALL MEET THE

SPECIFICATIONS IN TABLE 1.

6-5

RESISTANCE

TO SOLDER HEAT

DIP THE FILTER TERMINALS NO

CLOSER

THAN

1.5mm

INTO THE

SOLDER BATH AT 270℃ ±10℃ FOR 10±1 SEC. THEN RELEASE THE

FILTER

INTO

THE

ROOM

CONDITIONS

FOR 1 TO 2 HOURS. THE

FILTER SHALL MEET THE SPECIFICATIONS IN TABLE 1.

6-6

MECHANICAL SHOCK

DROP THE FILTER RANDOMLY ONTO THE

CONCRETE FLOOR FROM

THE

HEIGHT OF 30cm 3

TIMES.THE FILTER

SHALL FULFILL

THE

SPECIFICATIONS IN TABLE 1.

6-7

VIBRATION

SUBJECT THE FILTER TO THE

VIBRATION FOR 1 HOUR EACH IN X,Y

AND

Z AXES WITH THE

AMPLITUDE OF 1.5 mm AT 10 TO 55 Hz. THE

FILTER

SHALL

FULFILLTHE SPECIFICATIONS IN TABLE 1.

6-8

LEAD FATIGUE

6-8-1

PULLING TEST

WEIGHT

ALONG WITH THE DIRECTION OF LEAD WITHOUT AN

SHOCK 3 KG.

THE

FILTER SHALL SATISFY ALL THE

INITIAL

CHARACTERISTICS.

6-8-2

BENDING TEST

LEAD

SHALL BE SUBJECT TO

WITHSTAND

AGAINST

90℃

BENDING IN THE DERECTION OF THICKNESS. THIS OPERATION

SHALL BE

DONE

TOWARD

BOTH

DIRECTION. THE FILTER

SHALL SHOW

NO EVIDENCE OF DAMAGE AND SHALLSATISFY

ALL THE INITIAL ELECTRICAL CHARACTERISTICS.

TABLE 1

ITEM

SPECIFICATION

CENTRE FREQUENCY(f。)

450

±1.5 KHz Max

BAND WIDTH(6 dB)

±10.0 KHz Min

SELECTIVITY(40dB)

±20 KHz Max

STOP BAND ATTENUATION

30 dB Min

RIPPLE

2.5 dB Max

INSERTION LOSS

4 dB Max

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