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SUPERWORLD ELECTRONICS (S) PTE LTD

PG. 3

05.05.2008

HIGH CURRENT POWER INDUCTORS

SDL1310 SERIES

7. RELIABILITY AND TEST CONDITION :

approximately

T=40°C without core loss

Total : 5 cycles

Humidity Resistance

2. Inductance : Within ±20% of initial value.

No disconnection or short circuit.

1. Appearance : No damage

Measure at room temperature after placing for 2 to 3 hrs.

Measure at room temperature after placing for 2 to 3 hrs.

Applied Current : Rated Curent

Time : 500±12 hours

Humidity : 90% to 95%

Temperature : 40±5°C

10±0.5

seconds

Life Test

1. Appearance : No damage

Thermal Shock

2. Inductance : Within ±20% of initial value.

No disconnection or short circuit.

High Temperature

Low Temperature

Life Test

Reliability Test

60

seconds

150°C

cooling

230°C

Solder Heat Resistance

1. Appearance : No significant abnormality

2. Inductance change : Within ±20%

260°C

Dipping

Preheating

Natural

cooling

60

seconds

150°C

4±1

seconds

Mechanical Performance Test

Solderability Test

Saturation Current (Isat)

More than 90% of the terminal electrode

should be covered with solder.

Dipping

Preheating

Natural

Time : 500±12 hours

Times (min.)

Measure at room temperature after placing for 2 to 3 hrs.

Room Temperature

Room Temperature

+125±3

3

4

1

2

30±3

Within 3

-55±3

30±3

Within 3

Temperature (°C)

Conditions of 1 cycle.

Step

Measure at room temperature after placing for 2 to 3 hrs.

Temperature : 125±5°C

Time : 500±12 hours

Temperature : -55±5°C

Flux for lead free : rosin

Preheat : 150°C, 60sec.

Solder Temperature : 260±5°C

Flux for lead free : rosin

Dip Time : 10±0.5sec.

Solder : Sn-Ag3.0-Cu0.5

Dip Time : 4±1sec.

Isat(A) will cause Lo to drop approximately 20%

2. Temperature measured by digital surface thermometer

Solder Temperature : 230±5°C

Solder : Sn-Ag3.0-Cu0.5

Preheat : 150°C, 60sec.

1. Applied the allowed DC current

Electrical Characteristics Test

Heat Rated Current (Irms)

Inductance

DCR

ITEM

Refer to standard electrical characteristics list

PERFORMANCE

Irms(A) will cause the coil temperature rise

HP4284A, CH11025, CH3302, CH1320, CH1320S

CH16502, Agilent33420A Micro-Ohm Meter.

LCR meter.

TEST CONDITION