Capacitance [F] Tolerance Case Size Voltage [V] Dielectric Technology Termination Product Type
390 p ± 10 % 0402 50 X7R MLCC Sn Automotive
04025C391K4T2A
SizeVoltageDielectricCapacitance Code (in pF)Capacitance ToleranceFailure RateTerminationsPackagingSpecial Code

0402

0603

0805

1206

1210

1812

10V = Z

16V = Y

25V = 3

50V = 5

100V = 1

200V = 2

250V = V

500V = 7

X7R = C

2 Sig. Digits +

Number of Zeros

e.g. 10 F = 106

F = ±1% (≥10pF)*

G = ±2% (≥10pF)*

J = ±5% (≤1µF)

K = ±10%

M = ±20%

4 = Automotive

T = Plated Ni and Sn

2 = 7” Reel

4 = 13” Reel

A = Std. Product


This legend is Only for explain PartNumber parts, not for order or create specific PartNumber

PN structure example - For more specific information about full Part Numbers building see:
Catalog Series Datasheet - X7R Automotive

rohs_lf
Ceramic schema - X7R & X8L Impedance
Impedance
R0  =  385.5 μΩ
R1  =  535.3 mΩ
R2  =  64.24 Ω
R3  =  21.87 Ω
R4  =  1000 MΩ
L1  =  807.1 pH
L2  =  38.44 nH
L3  =  35.17 nH
C1  =  339.3 pF
C2  =  42.9 pF
C3  =  7.41 pF

Ceramic schema - X7R & X8L ESR
ESR
R0  =  497.5 mΩ
R1  =  481 kΩ
R2  =  22.12 kΩ
R3  =  993.9 Ω
R4  =  42.25 Ω
R5  =  4.007 Ω
R6  =  547.3 mΩ
R7  =  306.7 mΩ
R8  =  284.8 mΩ
R9  =  34.75 mΩ
R10  =  10.16 Ω
R11  =  1.113 Ω
R12  =  134 mΩ
R13  =  68.42 mΩ
L1  =  1.087 pH
L2  =  1.709 pH
L3  =  2.143 pH
L4  =  15.2 pH
L5  =  14.35 pH
C1_8  =  20.33 nF
C9  =  14 nF
C10  =  364.2 pF
C11  =  370.2 pF
Ceramic capacitor case schema Universal

CASE DIMENSIONS: millimeters (inches)

EIA Code L ± 0.1 (± 0.004) W ± 0.1 (± 0.004) T (Height max) t ± 0.15 (± 0.006)
0402 1.0 (0.039) 0.5 (0.02) 0.56 (0.022) 0.25 (0.01)

For more specific information about Part Number Case Size see Catalog Series Datasheet - X7R Automotive