LTM450EW datasheet(4/4 Pages) SHOULDER

Part #	LTM450EW

Description	CENTER FREQUENCY SHALL BE DEFIED AS THE CENTRAL VALUE OF THE BAND WITH AT 6 dB

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Manufacturer	SHOULDER [Shoulder Electronics Limited.]

Direct Link	http://www.shoulder.cn/

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SPECIFICATIONS IN TABLE 1.

6-3

LOW TEMPERATURE EXPOSURE

SUBJECT THE

FILTER TO -20℃ FOR 96 HOURS.

THEN RELEASE THE

FILTER INTO THE ROOM CONDITIONS FOR 2 HOURS PRIOR

TO THE

MEASUREMENT.

IT SHALL

FULFILL

THE SPECIFICATIONS IN

TABLE 1.

6-4

TEMPERATURE CYCLING

SUBJECT

THE

FILTER

TO A LOW TEMPERATURE OF -20℃ FOR 30

MINUTES. FOLLOWSING BY A HIGH TEMPERATURE

OF +80℃ FOR 30

MINUTES. THEN RELEASE THE FILTER INTOTHE ROOM

CONDITIONS

FOR

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 260℃ ±10℃ FOR 10±1 SEC. THEN RELEASE THE

FILTER

INTO

THE

ROOM

CONDITIONS

FOR 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 INITIALL

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 SHALL SATISFY

ALL THE INITIAL ELECTRICAL CHARACTERISTICS.

TABLE 1

ITEM

SPECIFICATION

CENTRE FREQUENCY(f。)

455

±1.0 KHz

BAND WIDTH(6 dB)

±3.0 KHz Min

SELECTIVITY(40dB)

±9.0 KHz Max

STOP BAND ATTENUATION

60.0 dB Min

RIPPLE

2.0 dB Max

INSERTION LOSS

6.0 dB Max

Http://www.shoulder.cn

SHOULDER ELECTRONICS LIMITED

Page: 4

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