SUPERWORLD ELECTRONICS (S) PTE LTD

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PG. 6

15.01.2008

L822HW SERIES

10. RELIABILITY AND TEST CONDITION :

Electrical Characteristics Test

No disconnection or short circuit.

Time : 500±12 hours

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

Heat Rated Current (Irms)

Mechanical Performance Test

Humidity Resistance

Thermal Shock

Reliability Test

Life Test

Life Test

Low Temperature

High Temperature

Solder Heat Resistance

Saturation Current (Isat)

Solderability Test

Inductance

DCR

Dipping

Temperature (°C)

Room Temperature

Room Temperature

10±0.5

seconds

Applied Current : Rated Curent

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

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

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

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

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

1. Appearance : No damage

No disconnection or short circuit.

4

Total : 5 cycles

Temperature : 40±5°C

Humidity : 90% to 95%

Step

Conditions of 1 cycle.

1-55±3

3

2

+125±3

1. Appearance : No damage

Temperature : -55±5°C

Time : 500±12 hours

Time : 500±12 hours

Temperature : 125±5°C

150°C

260°C

60

seconds

Preheating

Within 3

30±3

Within 3

30±3

Times (min.)

cooling

Natural

Solder Temperature : 230±5°C

2. Temperature measured by digital surface thermometer

1. Applied the allowed DC current

Dipping

4±1

seconds

CH16502, Agilent33420A Micro-Ohm Meter.

HP4284A, CH11025, CH3302, CH1320, CH1320S

approximately

T=40°C without core loss

Solder Temperature : 260±5°C

Irms(A) will cause the coil temperature rise

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

Flux for lead free : rosin

1. Appearance : No significant abnormally

2. Inductance changed : Within ±20%

60

seconds

Dip Time : 10±0.5sec.

Preheat : 150°C, 60sec.

Solder : Sn99.95-Cu0.05

Flux for lead free : rosin

Dip Time : 4±1sec.

150°C

230°C

Preheating

Refer to standard electrical characteristics list

More than 90% of the terminal electrode

should be covered with solder.

Solder : Sn99.95-Cu0.05

Preheat : 150°C, 60sec.

LCR meter.

cooling

Natural

ITEM

TEST CONDITION

PERFORMANCE

HIGH CURRENT MOLDED POWER INDUCTORS