SUPERWORLD ELECTRONICS (S) PTE LTD

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PG. 7

14.11.2008

L816 SERIES

10. RELIABILITY AND TEST CONDITION :

LCR meter.

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

Directions & times : X, Y, Z directions for 2 hours.

A period of 2 hours in each of 3 mutually perpendicular

Irms(A) will cause the coil temperature rise

approximately

T=40°C without core loss

CH16502, Agilent33420A Micro-Ohm Meter.

1. Applied the allowed DC current

60

seconds

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

Solder Temperature : 260±5°C

Solder Temperature : 245±5°C

2. Temperature measured by digital surface thermometer

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.

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

Applied Current : Rated Curent

60

seconds

Time : 500±12 hours

Life Test

Humidity : 90% to 95% RH

Appearance : Cracking, shipping and any other

defects harmful to the characteristics should not

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

No disconnection or short circuit.

be allowed.

Random Vibration Test

directions (Total 6 hours).

Amplitude : 1.52mm

Time : 500±12 hours

1. Appearance : No damage

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

No disconnection or short circuit.

1. Appearance : No damage

Humidity Resistance

Low Temperature

Thermal Shock

Life Test

1-55±3

Temperature : 40±5°C

Total : 5 cycles

Room Temperature

Room Temperature

3

2

4

+125±3

Temperature (°C)

Conditions of 1 cycle.

Step

Time : 500±12 hours

Temperature : -55±5°C

2. Inductance change : Within ±20%

1. Appearance : No significant abnormality

High Temperature

Reliability Test

Solder Heat Resistance

Dip Time : 10±0.5sec.

Temperature : 125±5°C

260°C

150°C

Preheat : 150°C, 60sec.

Flux for lead free : rosin

Solder : Sn-Ag3.0-Cu0.5

150°C

More than 90% of the terminal electrode

should be covered with solder.

Saturation Current (Isat)

Solderability Test

Mechanical Performance Test

Heat Rated Current (Irms)

DCR

Dip Time : 4±1sec.

Flux for lead free : rosin

245°C

Preheat : 150°C, 60sec.

Solder : Sn-Ag3.0-Cu0.5

30±3

30±3

Within 3

Within 3

Times (min.)

4±1

seconds

cooling

10±0.5

seconds

Preheating Dipping Natural

Preheating Dipping Natural

cooling

TEST CONDITION

HP4284A, CH11025, CH3302, CH1320, CH1320S

Refer to standard electrical characteristics list

PERFORMANCE

Electrical Characteristics Test

ITEM

Inductance

HIGH CURRENT MOLDED POWER INDUCTORS