MCB08 Series

Wire Wound Chip Inductor

MERITEK

WL Series

RoHS

Electrical Performance Test

Item

Requirement

Test Method

Inductance

Refer to standard electrical

characteristic spec.

HP4291 or HP4284

Q

HP4291 or HP4284

SRF

HP4291

DC Resistance DCR

Agilent 34401A

Rated Current IDC

Applied the current to coils, The inductance change should be

less than 10% to initial value

Mechanical Performance Test

Item

Requirement

Test Method

Solderability

The electrodes shall be at least

90% covered with new solder

coating

Lead-free inductor: after fluxing(alpha 100 or equity), inductor

shall be dipped in a melted solder bath at 245±5°C, 5±0.5

seconds

Resistance to Soldering

Heat

Appearance: No damage

Pre-heating: 150°C, 1min.

Solder Temperature: 260±5°C

Immersion Time: 10±1 seconds

Vibration

Appearance: No damage

L change: within±10% Q

change: within±30% DCR:

within specification

Test device shall be soldered on the substrate Oscillation

Frequency: 10 to 55 to 10Hz for 1 min.

Amplitude: 1.5 mm

Time: 2 hrs for each axis (X, Y&Z), total 6 hrs

Climatic Test

Item

Requirement

Test Method

Temperature Cycle

Appearance: No damage

L change: within±10%

Q change: within±30%

DCR: within specification

One cycle:

Step

Temperature (°C)

Time (min.)

1

-25±3

30

2

25±2

3

3

85±3

30

4

25±2

3

Total: 100 cycles

Measured after exposure in the room condition for 24 hrs

Damp Heat with Load

Temperature: 40±2°C

Relative Humidity: 90 ~ 95%

Time: 1000 hrs

Measured after exposure in the room condition for 24 hrs

High Temperature

Storage

Temperature: 85±3°C

Applied Current: Rated Current

Time: 1000 hrs

Measured after exposure in the room condition for 24 hrs

Low Temperature

Storage

Temperature: -25±3°C Time: 1000 hrs

Measured after exposure in the room condition for 24 hrs



Storage Temperature: 25±3°C; Humidity < 80%RH



Operating Temperature Range: -40~+85°C