Rev. 7a

 

Multilayer Ceramic Capacitors

HQ Series

(High Q)

 

No.

Item

Test Conditions

Requirements

4.

Dielectric

Strength

* To apply voltage: 250% of rated voltage.

* Duration: 1 to 5 sec.

* Charge and discharge current less than 50mA.

* No evidence of damage or flash over during test.

5.

Insulation

Resistance

To apply rated voltage for max. 120 sec.

≥10GΩ

6.

Temperature

Coefficient

With no electrical load.

Operating temperature: -55~125°C at 25°C

* Capacitance change: within ±30ppm/°C

7.

Adhesive

Strength of

Termination

* Pressurizing force：

5N (≤0603) and 10N (>0603)

* Test time: 10±1 sec.

* No remarkable damage or removal of the terminations.

8.

Vibration

Resistance

* Vibration frequency: 10~55 Hz/min.

* Total amplitude: 1.5mm

* Test time: 6 hrs. (Two hours each in three mutually

perpendicular directions.)

* No remarkable damage.

* Cap change and Q/D.F.: To meet initial spec.

9.

Solderability

* Solder temperature: 235±5°C

* Dipping time: 2±0.5 sec.

95% min. coverage of all metalized area.

10. Bending Test

* The middle part of substrate shall be pressurized by

means of the pressurizing rod at a rate of about 1 mm per

second until the deflection becomes 1 mm and then the

pressure shall be maintained for 5±1 sec.

* Measurement to be made after keeping at room temp for

24±2 hrs.

* No remarkable damage.

* Cap change: within ±5.0% or ±0.5pF whichever is larger.

(This capacitance change means the change of capacitance

under specified flexure of substrate from the capacitance

measured before the test.)

11. Resistance to

Soldering

Heat

* Solder temperature: 270±5°C

* Dipping time: 10±1 sec

* Preheating: 120 to 150°C for 1 minute before immerse the

capacitor in a eutectic solder.

* Measurement to be made after keeping at room temp for

24±2 hrs. (Class I) or 48±4 hrs. (Class II).

* No remarkable damage.

* Cap change: within ±2.5% or ±0.25pF whichever is larger.

* Q/D.F., I.R. and dielectric strength: To meet initial requirements.

* 25% max leaching on each edge.

12. Temperature

Cycle

* Conduct the five cycles according to the temperatures and

time.

Step

Temp. (°C)

Time (min.)

1

Min. operating temp. +0/-3

30±3

2

Room temp.

2~3

3

Max operating temp. +3/-0

30±3

4

Room temp.

2~3

* Measurement to be made after keeping at room temp for

24±2 hrs.

* No remarkable damage.

* Cap change：within ±2.5％ or ±0.25pF whichever is larger.

* Q/D.F., I.R. and dielectric strength: To meet initial requirements.

13. Humidity

(Damp Heat)

Steady State

* Test temp.: 40±2°C

* Humidity: 90~95% RH

* Test time: 500+24/-0hrs.

* Measurement to be made after keeping at room temp for

24±2 hrs.

* No remarkable damage.

* Cap change: within ±5.0% or ±0.5pF whichever is larger.

* Q/D.F. value:

NP0: Cap≥30pF, Q≥350; 10pF≤Cap<30pF, Q≥275+2.5C

Cap<10pF; Q≥200+10C

* I.R.: ≥1GΩ.

14. Humidity

(Damp Heat)

Load

* Test temp.: 40±2°C

* Humidity: 90~95%RH

* Test time: 500+24/-0 hrs.

* To apply voltage：rated voltage

* Measurement to be made after keeping at room temp for

24±2 hrs.

* No remarkable damage.

* Cap change: within ±7.5% or ±0.75pF whichever is larger.

* Q/D.F. value:

NP0: Cap≥30pF, Q≥200; Cap<30pF, Q≥100+10/3C

* I.R.: ≥500MΩ.