18

Multi-Layer High Frequency

Ceramic Chip Inductors

LCMC Series

TEST CONDITION AND REQUIREMENTS

No.

Item

Test Condition

Requirements

1

Inductance

a. Temperature: 25 ± 3ºC

Within specified tolerance.

b. Relative Humidity: 45 to 75%RH

2

Q Value

a. Temperature: 25 ± 3ºC

In accordance with

b. Relative Humidity: 45 to 75%RH

electrical specification.

3

DC Resistance

a. Temperature: 25 ± 3ºC

In accordance with

b. Relative Humidity: 45 to 75%RH

electrical specification.

c. Measuring equipment: HP 4338.

4

Appearance

Inductors shall be visually inspected for visible evidence of defect.

In accordance with specification.

5

Dimension

Dimension shall be measured with caliper or micrometer

In accordance with dimension

specification.

6

Solderability

Immerse a test sample into a methanol solution containing

More than 75% of the

resin and immerse into molten solder of

terminal electrode part shall

230 ± 5ºC for 5 ± 1 second.

be covered with fresh solder.

7

Bending Strength

Solder the chip to test jig then apply a force in the direction

1. No mechanical damage

shown in below. The soldering shall be done with the reflow

shall be observed.

method and shall be conducted with care so that the soldering

2. Rdc-value: to meet the

is uniform and free of defects such as heat shock.

initial Spec.

8

Resistance to

Immerse a test sample into a methanol solution containing

No visible damage.

Soldering Heat

resin, preheat it at 120 to 150ºC for 1 minute and immerse

Inductance variation within 10%.

into molten solder of 270 ± 5ºC for 10 ± 1 second so that both

Q variation within 20%.

terminal electrodes are completely submerged.

9

Thermal Shock

Solder a test sample to printed circuit board, and conduct

No visible damage.

5 cycles of test under the conditions shown as below.

Inductance variation within 10%.

0201 & 0402 operating temp. range: -55~125ºC

Q variation within 20%.

0603 operating temp. range: -40~85ºC

Cycle: Maximum operating temp. (30 ± 3min)

Minimum operating temp. (30 ± 3min)

10

High Humidity

Keep a test sample in an atmosphere with a temperature of 40 ± 2ºC,

No visible damage.

State Life Test

90~95%RH for 500 ± 12 hours. After the removal from test chamber,

Inductance variation within 10%.

2 to 3 hours of recovery under standard condition, and measurement

Q variation within 20%.

shall be made after 24 ± 2 hrs. of recovery under standard condition.

11

High Humidity

Solder a test sample to printed circuit board then keep the test

No visible damage.

Load Life Test

sample in an atmosphere with a temperature of 40 ± 2ºC, 90~95%RH

Inductance variation within 10%.

for 500 ± 12 hours while supplying the rated current. After the removal

Q variation within 20%.

from test chamber, 2 to 3 hours of recovery under standard condition,

and measurement shall be made after 24 ± 2 hrs. of recovery under

standard condition.

12

High Temperature

Keep a test sample in an atmosphere with a temperature of 85 ± 2ºC

No visible damage.

State Life Test

for 500 ± 12 hours. After the removal from test chamber, 2 to 3 hours

Inductance variation within 10%.

of recovery under standard condition, and measurement shall be

Q variation within 20%.

made after 24 ± 2 hrs. of recovery under standard condition.

13

High Temperature

Solder a test sample to printed circuit board then keep the test

No visible damage.

Load

sample in an atmosphere with a temperature of 85 ± 2ºC for

Inductance variation within 10%.

500 ± 12 hours while supplying the rated current. After the removal

Q variation within 20%.

from test chamber, 2 to 3 hours of recovery under standard condition,

and measurement shall be made after 24 ± 2 hrs. of recovery under

standard condition.

Supports

(Ø5)

Solder

45±2mm

45±2mm

Press Jig

Test PC Board

Sample

20

Press

R230

50

Amplitude 2mm

within 3min

c. Measuring equipment and fixture:

(0603) HP 4291+16192A

(0402) HP 4287+16193A

(0201) HP 4287+16196C

c. Measuring equipment and fixture:

(0603) HP 4291+16192A

(0402) HP 4287+16193A

(0201) HP 4287+16196C

Mounting Samples