SUPERWORLD ELECTRONICS (S) PTE LTD

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

PG. 7

15.01.2008

L812HW SERIES

10. RELIABILITY AND TEST CONDITION :

Inductance

Electrical Characteristics Test

Heat Rated Current (Irms)

Saturation Current (Isat)

Mechanical Performance Test

Solder Heat Resistance

Solderability Test

Reliability Test

High Temperature

Life Test

Life Test

Low Temperature

Thermal Shock

Humidity Resistance

DCR

60

seconds

10±0.5

seconds

Temperature : 125±5°C

Conditions of 1 cycle.

Temperature : -55±5°C

Time : 500±12 hours

Time : 500±12 hours

Step

Total : 5 cycles

Temperature : 40±5°C

Time : 500±12 hours

Applied Current : Rated Curent

Humidity : 90% to 95%

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.

No disconnection or short circuit.

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

1. Appearance : No damage

No disconnection or short circuit.

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

1. Appearance : No damage

30±3

-55±3

1

Room Temperature

Room Temperature

4

2

3

+125±3

Within 3

Within 3

30±3

Temperature (°C)

Times (min.)

2. Temperature measured by digital surface thermometer

Solder : Sn99.95-Cu0.05

Preheat : 150°C, 60sec.

Flux for lead free : rosin

Solder Temperature : 245±5°C

Dip Time : 4±1sec.

245°C

150°C

Dip Time : 10±0.5sec.

Preheat : 150°C, 60sec.

Solder : Sn99.95-Cu0.05

Solder Temperature : 260±5°C

Flux for lead free : rosin

150°C

260°C

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

1. Appearance : No significant abnormality

2. Inductance change : Within ±20%

should be covered with solder.

More than 90% of the terminal electrode

4±1

seconds

Dipping

Preheating

cooling

Natural

60

seconds

Dipping

Preheating

cooling

Natural

1. Applied the allowed DC current

LCR meter.

CH16502, Agilent33420A Micro-Ohm Meter.

HP4284A, CH11025, CH3302, CH1320, CH1320S

approximately

T=40°C without core loss

Irms(A) will cause the coil temperature rise

PERFORMANCE

Refer to standard electrical characteristics list

ITEM

TEST CONDITION

A period of 2 hours in each of 3 mutually perpendicular

directions (Total 6 hours).

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

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

defects harmful to the characteristics should not

Appearance : Cracking, shipping and any other

Random Vibration Test

be allowed.

Amplitude : 1.52mm

HIGH CURRENT MOLDED POWER INDUCTORS