LDW43 datasheet(6/7 Pages) LEIDITECH

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Reliability

1-1.Mechanical Performance

Item

Specification

1-1-1

Board Flex

The forces applied on the right

Test device shall be soldered on the substrate

conditions must not damage

Substrate Dimension: 100x40x1.6mm

the terminal electrode and the

Deflection: 2.0mm

ferrite.

Keeping Time: 60 sec

1-1-2

Terminal Strength

The chip must not damage the

Appendix 1 Note(AEC-Q200-005):Force of 1.8 kg for 60

terminal electrode and the ferrite.

seconds.

1-1-3

Solderability

The electrodes shall be at

Pre-heating: 150℃, 1min

least 95% covered with new

Solder Composition: Sn/3.0Ag/0.5Cu

solder coating.

Solder Temperature: 245±5℃

Immersion Time: 4±1sec

1-1-4

Resistance to

Appearance:No damage

Pre-heating: 150℃, 1min

Soldering Heat

Inductance change shall

Solder Composition: Sn/Ag3.0/Cu0.5

be within ±10%.

Solder Temperature: 260±5℃

Immersion Time: 10±1sec

1-1-5 Resistance to Solvents

There must be no change in

Inductors must withstand 6 minutes of alcohol or water.

appearance or obliteration of marking.

1-1-6 Mechanical Shock

The forces applied on the right

Pulse shape：Half-sine waveform

conditions must not damage

Impact acceleration：100 g

the terminal electrode and the

Pulse duration：6 ms

ferrite.

Number of shocks：18 shocks (3 shocks for each face)

Orientation：Bottom, top, left, right, front and rear faces

1-1-7 Vibration

Appearance:No damage

Vibration waveform: Sine waveform

Inductance change shall be

Vibration frequency: 10Hz~2000Hz

within ±10%.

Vibration acceleration: 5g

Sweep rate: 0.764386otcave/minute

Duration of test: 12 cycles each of 3 orientations

20 minutes for each cycle

Vibration axes: X, Y & Z

1-2.Environmental Performance

Item

Specification

1-2-1 High Temperature

Appearance:No damage (for

Temperature: 125±3℃

Exposure (Storage)

microscope of CASTOR MZ-45

Time: 1000hrs

20X)Inductance change shall

Measured after exposure in the room condition for 24hrs

1-2-2 Operational Life

be within ±10%.

Temperature: 125±2℃

Appliend Current : Rated Current

Time: 1000± 24 hrs

Measured after exposure in the room condition for 24hrs

1-2-3 Biased Humidity

Temperature: 85±2℃

Relative Humidity: 85%

Time: 1000hrs

Measured after exposure in the room condition for 24hrs

1-2-4 Temperature Cycling

Total cycles: 1000 cycles

Temperature Cycling Test Conditions : -40 to +125 ℃

Soak Mode Condition : 30 minutes

Measured after exposure in the room condition for 24hrs

1-2-5 ESD

Test mode：Contact Discharge

Discharge level：±6KV, Discharge interval：1 second

Polarity of the output voltage：Positive and negative

Number of discharge：Discharge +/- for 1 time for the 2 test

points.

Test Mode：Air Discharge

Discharge level：±12KV, ±16KV, ±25KV

Discharge interval：＜5 seconds

Polarity of the output voltage：Positive and negative

Number of discharge：Discharge +/- for 1 time for the

1~2 test points.

Test Method

LDW43 Series

Rev :

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01.06.2018

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