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HigH Voltage Polyterm® CeramiC CaPaCitors
Standard MLCCs are prone to cracking due to mishandling, depanelization, and board flexing. In response to customer requests for higher resistance to mechanical stress, and as a result of continuous efforts to improve our products, JDI has introduced PolyTerm® termination ceramic capacitors to meet those customer requirements for increased resistance to flexure cracking. PolyTerm® is a conductive epoxy termination material loaded with silver, allowing it to absorb much more bending force than standard termination material. after termination PolyTerm® parts are nickel and tin plated using the same process as standard parts. There is no effect on solderability or capability to withstand the soldering process. PolyTerm® capacitors are ideal for use in telecom, power supply, inverter, and modem applications.
100% Sn External Termination Ceramic Body 100% Sn External Termination Ni Barrier PolyTerm®
Pd/Ag Internal Electrodes
Features
• Lead Free Terminations 100% Sn, Final Termination • Electrodes: Pd/Ag • Core Termination: PolyTerm® • Middle Barrier Layer: Ni • External Termination Layer: 100% Sn • NP0 and X7R temperature coefficient • Highly reliable performance • Industry standard case sizes
How to order
302
VOLTAGE 1st two digits are significant; third digit denotes number of zeros to follow eg: 302 = 3000 VDCW
R29
CASE SIZE R15 = 0805 R18 = 1206 S41 = 1210 S43 = 1812 S47 = 2220 S48 = 2225 S49 = 1825
N
DIELECTRIC N = NP0 W = x7R
1R0
CAPACITANCE 1st two digits are significant; third digit denotes number of zeros to follow eg: 101 = 100 pF R denotes decimal eg: 1R0 = 1.0 pF
C
TOLERANCE B = ± 0.1 pF C = ± 0.25 pF D = ± 0.5 pF J = ± 5% K = ± 10% M = ± 20%
F
TERMINATION F = PolyTerm®
4
MARKING 4 = Unmarked
E
TAPE CODE E = 7” Plastic T = Paper 7” reel
Safety Certified capacitor p/ns end with “-****-SC” and are rated at 250 Volts aC.
Example Part Number: 302R29N1R0CF4E
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15191 Bledsoe Street, Sylmar, California 91342 • (818) 364-9800• Fax (818) 364-6100
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HigH Voltage Polyterm® aVailability - NP0 dielectric
SIZE
Voltage
0805
1000V 500V 630V 500V
1206
1000V 2000V 3000V 630V 500V
1210
1000V 2000V 3000V 1000V 630V 500V 630V
1808
2000V 3000V 4000V 5000V X2Y3 X1Y2 500V 630V
1812
1000V 2000V 3000V 4000V 5000V
2211
Y2 •
1.0 pF 10 pF 12 pF 15 pF 18 pF 22 pF 27 pF 33 pF 39 pF 47 pF 56 pF 68 pF 82 pF 100 pF 120 pF 150 pF 180 pF 220 pF 270 pF 330 pF 390 pF 470 pF 560 pF 680 pF 820 pF 1.0 nF 1.2 nF 1.5 nF 1.8 nF 2.2 nF 2.7 nF 3.3 nF 3.9 nF 4.7 nF 5.6 nF 6.8 nF 8.2 nF 10 nF • • • • • • • • • • • • • • • • • • • •
Note: Part values marked with “•” have better availability and shorter lead times.
15191 Bledsoe Street, Sylmar, California 91342 • (818) 364-9800• Fax (818) 364-6100
2
www.johanson dielectrics.com
HigH Voltage Polyterm® aVailability - NP0 dielectric
SIZE
Voltage
500V 630V
1825
1000V 2000V 3000V 4000V 5000V 500V 630V
2220
1000V 2000V 3000V 4000V 5000V 500V 630V
2225
1000V 2000V 3000V 4000V 5000V
1.0 pF 10 pF 15 pF 18 pF 22 pF 27 pF 33 pF 47 pF 56 pF 68 pF 82 pF 100 pF 150 pF 180 pF 220 pF 270 pF 330 pF 470 pF 560 pF 680 pF 820 pF 1.0 nF 1.2 nF 1.5 nF 1.8 nF 2.2 nF 2.7 nF 3.3 nF 4.7 nF 5.6 nF 6.8 nF 8.2 nF 10 nF 12 nF 15 nF 18 nF 22 nF 27 nF 33 nF 39 nF 47 nF
Note: Part values marked with ‘•’ have better availability and shorter lead times.
3
15191 Bledsoe Street, Sylmar, California 91342 • (818) 364-9800• Fax (818) 364-6100
www.johanson dielectrics.com
HigH Voltage Polyterm® aVailability - X7r dielectric
SIZE
Voltage
0805
1000V 500V 630V 500V
1206
1000V 2000V 3000V 630V 500V
1210
1000V 2000V 3000V 1000V 630V 500V 630V
1808
2000V 3000V 4000V 5000V 1000V X2Y3 X1Y2 500V 630V
1812
2000V 3000V 4000V 5000V X2Y3
2211
Y2 •
100 pF 150 pF 180 pF 220 pF 270 pF 330 pF 470 pF 560 pF 680 pF 820 pF 1.0 nF 1.2 nF 1.5 nF 1.8 nF 2.2 nF 2.7 nF 3.3 nF 3.9 nF 4.7 nF 5.6 nF 6.8 nF 8.2 nF 10 nF 12 nF 15 nF 18 nF 22 nF 27 nF 33 nF 39 nF 47 nF 56 nF 68 nF 82 nF 100 nF 120 nF 150 nF 180 nF • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • •
Note: Part values marked with “•” have better availability and shorter lead times.
15191 Bledsoe Street, Sylmar, California 91342 • (818) 364-9800• Fax (818) 364-6100
4
www.johanson dielectrics.com
HigH Voltage Polyterm® aVailability - X7r dielectric
SIZE
Voltage
500V 630V
1825
1000V 2000V 3000V 4000V 5000V 1000V 500V 630V
2220
2000V 3000V 4000V 5000V X1Y2 500V 630V
2225
1000V 2000V 3000V 4000V 5000V
270 pF 330 pF 470 pF 560 pF 680 pF 820 pF 1.0 nF 1.2 nF 1.5 nF 1.8 nF 2.2 nF 2.7 nF 3.3 nF 3.9 nF 4.7 nF 5.6 nF 6.8 nF 8.2 nF 10 nF 12 nF 15 nF 18 nF 22 nF 27 nF 33 nF 39 nF 47 nF 56 nF 68 nF 82 nF 100 nF 120 nF 150 nF 180 nF 220 nF 270 nF 330 nF 390 nF 470 nF 560 nF 680 nF • • •
Note: Part values marked with ‘•’ have better availability and shorter lead times.
5
15191 Bledsoe Street, Sylmar, California 91342 • (818) 364-9800• Fax (818) 364-6100
www.johanson dielectrics.com
beNd test descriPtioN
The test board is designed so that the capacitance of the part can be measured while the part is being flexed (See figure 1). The capacitor is mounted at the center of the board. The testing equipment has a pressing block that is located so that it applies force at the center of the test board from below the part at a constant rate. Since the edges of the board are held in place by the support pins, this causes the board to flex. The amount of flex is measured in millimeters from the center of the board to the edge, please see “A” in Figure 2.
20
+
+
R2.5
R340
“A”
Pressing Block
A
Probes Support Pins
40 45±2 45±2
Figure 1
Units: mm
Figure 2 As the test board is flexed, the capacitance is constantly being measured by a capacitance meter which is connected to the test boards through capacitance probes. The capacitance is first measured at 0mm flex to establish the nominal value. The test board is then flexed to 1mm and held for at least on second, then the capacitance is measured, it is then flexed to 2mm, and so on up to 5mm. Any change in capacitance that exceeds 5% of the nominal value is considered a failure.
Bend Test Results 1808 size
100 % 90% 80% 70% 60% 50% 40% 30% 20% 10% 0%
% of Parts that Fail
Po ly Te rm Standa rd P r oduc t
3 mm
4 mm
5 mm
6 mm
8 mm
10 mm
Board Flex (mm)
15191 Bledsoe Street, Sylmar, California 91342 • (818) 364-9800• Fax (818) 364-6100
6
www.johanson dielectrics.com
eXamPle oF customer aPPlicatioN
Johanson Dielectrics receives a lot of requests from our customers to help them with cracking issues. One customer had cracking at a rate of 16% on 1206 size high voltage capacitors during their process. The top picture of Figure 3 shows a clear mechanical crack with a 45 degree angle at the termination solder pad interface. Repopulating the same board with PolyTerm® capacitors showed no cracking failures. The bottom picture of Figure 3 shows how PolyTerm® Capacitors solved these problems. No cracking was exhibited on any of the PolyTerm® capacitors during the customer assembly process.
Figure 3
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15191 Bledsoe Street, Sylmar, California 91342 • (818) 364-9800• Fax (818) 364-6100
