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5 / 19 page Nickel Barrier Multilayer Ceramic Capacitors Page 5 27/04/06 V1.0 Item Performance Test or Inspection Method Temperature Characteristic of Capacitance Temperatures Coefficient The temperature coefficient is determined using the capacitance measured in step 3 as a reference. Test the specimen from step 1through step 5, the capacitance shall be within the specified tolerance for the capacitance coefficient and capacitance change as left table. Solderabiliy New solder to over 95% of termination Completely soak both terminal electrodes in solder at specified temperature for 3 ±0.5 second a. For Tin-Lead Sn/Pb) Termination product: 235 ±5°C. b. For Lead-free (Pure Sn) Termination product: 245 ±5°C. Leaching Completely soak both terminal electrodes in solder at 270 ±5°C for 40 ±1second. Soldering to heat External Appearance No mechanical Damage Completely immerse both terminations in solder at 270 ±5°C for 10 ±3 second. Leave the capacitors in ambient condition for 2 4 ±2 hours before measurement. *Preconditioning: F(only for Class 2): Perform a heat treatment at 150 +0-10°C for one hour and then let sit for 24 ±2 hours at room temperature. Perform the initial measurement. Capacitance Change ( ∆ C/C) NPO X7R/X5 R Z5U Y5V ±2.5% or ±0.25 pF maximum (Whichever is larger) ±7.5% ±20% ±20% DF NPO: C ≥30pF : Q ≥ 1000 C <30pF:Q ≥ 400 + 20°C PS: C : Nominal Capacitance (pF) X7R, X5R, Y5V, Z5U : (Maximum Value) IR NPO: 100,000MW minimum or R x C ≥1000W x F (Whichever is smaller) X7R, X5R, Y5V, Z5U: 10,000MW minimum or R x C ≥1000W x F (Whichever is smaller) Code Temperature Coefficient 1 Base Temperature (25°C) ±2°C 2 Minimum Operation Temperature ±2°C 3 Base Temperature (25°C) ±2°C 4 Minimum Operation Temperature ±2°C 5 Base Temperature (25°C) ±2°C TC Operating Temperature Capacitance Change (DC) NPO -55 ~ +125°C 0 ±30 (ppm/°C) X7R -55 ~ +125°C ±15% X5R -55 ~ +85°C ±15% Y5V -55 ~ +125°C +22% ~ -82% Z5U -55 ~ +125°C +22% ~ -56% T.C. ≥≥ 50V 25V 16V ≤≤10V X7R/ X5R 2.5% 3.0% 3.5% 5.0% Z5U 4.0% - - - Y5V 5.0% 7.5% 9.0% 12.5% |
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