SUPERWORLD ELECTRONICS (S) PTE LTD

PG. 5

NOTE : Specifications subject to change without notice. Please check our website for latest information.

SMD Power Inductors

16.01.2014

SPS252012E SERIES

7. RELIABILITY AND TEST CONDITION :

Life Test

Solderability Test

Solder Heat Resistance

JEDEC J-STD-020DClassification Reflow Profiles

Preconditioning:Run through IR reflow for 2 times.( IPC/

Refer to standard electrical characteristics list

PERFORMANCE

Electrical Characteristics Test

Inductance L

ITEM

Agilent-4291, Agilent-4287

Agilent-4291

TEST CONDITION

Appearance : No damage.

to drop approximately ΔL(%).

Saturation DC Current (Isat) will cause L0

Agilent-4338

Temperature : 85± 2° C(Inductor)

Base on temp. rise & ΔL/L0A 30%.

≦

Q

SRF

DC Resistance

Rated Current

rise approximately ΔT(°C) without core loss.

Heat Rated Current (Irms) will cause the coil temperature

ΔT 40°CMax

Temperature Rise Test

1.Applied the allowed DC current.

2.Temperature measured by digital surface thermometer

Mechanical Performance Test

Inductance : within± 10% of initial value

Q : Shall not exceed the specification value.

More than 95% of terminal electrode should be

covered with solder.

Reliability Test

Agilent-4192, Agilent-4285

RDC : within ± 15% of initial value and shall not

exceed the specification value

260± 5

(solder temp)

(° C)

ramp/immersion

Temperature

Temperature

and emersion rate

10± 1

(s)

Time

of heat

Number

cycles

25mm/s± 6 mm/s

1

Depth: completely cover the termination

Solder : Sn99.5%-Cu0. 5%

Temperature : 245± 5° C

Preheat : 150° C,60sec

Flux for lead free : Rosin. 9.5%

Dip time : 4± 1sec

Depth : completely cover the termination

Appearance : No damage.

Inductance : within± 10% of initial value

Q : Shall not exceed the specification value.

RDC : within ± 15% of initial value and shall not

exceed the specification value

Applied current : rated current

Duration : 1000± 12hrs

Measured at room temperature after placing for 24± 2 hrs

Thermal shock

JEDEC J-STD-020DClassification Reflow Profiles

Step1 : -40± 2° C 30± 5min

Preconditioning:Run through IR reflow for 2 times.( IPC/

Step2 : 25±2°C

0.5min

≦

Step3 : 105± 2° C 30± 5min

Number of cycles : 500

Measured at room fempraturc after placing for 24± 2 hrs

Humidity Resistance Test

JEDEC J-STD-020DClassification Reflow Profiles

Humidity : 85±2﹪R.H

Preconditioning:Run through IR reflow for 2 times.( IPC/

Temperature : 85° C± 2° C

Duration : 1000hrs Min. with 100% rated current

Measured at room temperature after placing for 24± 2 hrs

Vibration Test

JEDEC J-STD-020DClassification Reflow Profiles

Oscillation Frequency : 10～2K～10Hz for 20 minutes

Preconditioning:Run through IR reflow for 2 times.( IPC/

Equipment : Vibration checker

Total Amplitude : 1.52mm± 10%

Testing Time : 12 hours(20 minutes, 12 cycles each of 3

orientations)