Types MCH and MCHN
Multilayer High RF Power Capacitors
2500 & 4000 Volt RF Capacitors for Medical Imaging Coils, Plasma Generators,
VHF/UHF Power Amplifiers and Antenna Tuning with Nonmagnetic Option
The flexible aluminum silicate dielectric eliminates
cracking and permits soldering to 260 °C. These high
voltage, RF capacitors need no voltage derating at
temperatures up to 125 ºC and voltages to 4000 Vdc.
Exceptionally low ESR and superior thermal qualities
set the MCH/MCHN chip capacitors apart from
ordinary RF capacitors.
Highlights
Specifications
No thermal cracking
FR4 compatible and wave solderable
Extremely high Q above 50 MHz
Nonmagnetic option available
Ultra stable: no change with (t), (V) and (f)
Excellent for tuning and impedance matching
High flashover level
Withstands 2 mm bend test
Better than porcelain
Applications
MRI Coils
RF Ablation Systems
Transmitters
RF Generators
Antenna Tuning
Lasers
RF Power Amplifiers
MRI Generators
Capacitance and Voltage Ratings:
Capacitance Tolerance:
Temperature Range:
Case Size:
Temperature Characteristics:
RoHS Compliant
10 – 220 pF at 4kVdc and 270 – 1000 pF at
2500 Vdc (other ratings available)
±5% standard (±2% available)
–55 ºC to +125 ºC (with no voltage derating)
3838 (9.7 x 9.7 mm)
Temp. Coefficient
0 to +50 ppm/ºC
Cap Drift
±(0.05%+0.1 pF)
Engineering Design Kits
High Q, Low ESR Construction for RF Power Applications
Resin Coating
Glass
Terminal
MCH2500VKIT8, MCH4000VKIT10
Nonmagnetic MCHN2500VKIT9, MCHN4000VKIT11
High Q, Low ESR Multilayer
Construction for RF Power Applications
Mica
2500 V kits 5 each of 8 values 270 to 1000 pF
4000 V kits 5 each of 10 values 10 – 220 pF
Sn Plating
Conductive Resin
Ni Electrode: Type MC
Cu Electrode: Nonmagnetic Type MCN
Ag Electrode
CDE Cornell Dubilier • 1605 E. Rodney French Blvd. • New Bedford, MA 02744 • Phone: (508)996-8561 • Fax: (508)996-3830 • www.cde.com
Types MCH and MCHN
Multilayer High RF Power Capacitors
Outline Drawing
Marking on
Top
(10
405”
.3
mm
max
)m
ax
.405” max
(10.3 mm) max
L
T max
see chart
Soldering Pattern
←
.425” (10.8 mm) min.
→
↑
.405”
(10.3 mm)
min
←←←←
.
W
Side
Terminal:
(Ni Sn plating) MCH
(Cu Sn plating) MCHN
0.016” to 0.060”
(
0.4 to 1.5 mm)
↓
←
.050”
→ ←
(8.3.325”
→ ←
.050”
→
(1.3 mm)
mm)
(1.3 mm)
min
min
min
Part Numbering System
MCH
Type
MCH
= Standard
MCHN
= Nonmagnetic
38
Case
Code
38 =
.380x.380
F
Temperature
Coefficient
F=0
to +50 ppm/ºC
K
Voltage
K =
2500 Vdc
M=4000
Vdc
271
J
–Y
Package
Blank
= Bulk (100 per bag)
–Y
= Tray pack (100 per tray)
Capacitance Tolerance
100
= 10 pF
271
= 270 pF
J
= ±5%
G
= ±2%
Ratings (additional ratings available)
Cap
(pF)
10
12
15
18
22
27
33
39
47
56
68
82
100
120
150
180
220
270
330
390
470
560
680
820
1000
Catalog
Part Number*
MCH38FM100D-Y
MCH38FM120J-Y
MCH38FM150J-Y
MCH38FM180J-Y
MCH38FM220J-Y
MCH38FM270J-Y
MCH38FM330J-Y
MCH38FM390J-Y
MCH38FM470J-Y
MCH38FM560J-Y
MCH38FM680J-Y
MCH38FM820J-Y
MCH38FM101J-Y
MCH38FM121J-Y
MCH38FM151J-Y
MCH38FM181J-Y
MCH38FM221J-Y
MCH38FK271J-Y
MCH38FK331J-Y
MCH38FK391J-Y
MCH38FK471J-Y
MCH38FK561J-Y
MCH38FK681J-Y
MCH38FK821J-Y
MCH38FK102J-Y
2500 Vdc
0.380
4000 Vdc
Voltage
(Vdc)
102
= 1000 pF
D
=
± 0.5 pF
RoHS Compliant
Length
Width
T max
Inches (mm)
Inches (mm) Inches (mm)
0.080 (2.03 mm)
0.120 (3.05 mm)
0.380
+0.025 / -0
(9.65 mm
+0.65 / -0)
0.160 (4.06 mm)
+0.025 / -0
(9.65 mm
+0.65 /- 0)
0.240 (6.10 mm)
0.160 (4.06 mm)
0.240 (6.10 mm)
0.270 (6.86 mm)
*For nonmagnetic version change P/N prefix to MCHN
CDE Cornell Dubilier • 1605 E. Rodney French Blvd. • New Bedford, MA 02744 • Phone: (508)996-8561 • Fax: (508)996-3830 • www.cde.com
Types MCH and MCHN
Multilayer High RF Power Capacitors
Typical Performance Data
ESR vs. Frequency for 470 pF
1
Porcelain (3838)
MCH (3838)
0.1
ESR (
Ω
)
0.01
0.001
1
10
100
f (MHz)
1000
10000
MCH (3838) 2.5 kVdc
Porcelain (3838) 2.5 kVdc
Current Rating (IRMS) for 470 pF at 60 ºC Rise
100
RMS Current
(Amps)
MCH (3838)
10
Porcelain (3838)
1
1
10
100
f (MHz)
1000
10000
Porcelain (3838) 2.5 kV 11.4 A @ 64 MHz
MCH38K471J (3838) 2.5 kV 14.2 A @ 64 MHz
CDE Cornell Dubilier • 1605 E. Rodney French Blvd. • New Bedford, MA 02744 • Phone: (508)996-8561 • Fax: (508)996-3830 • www.cde.com
Types MCH and MCHN
Multilayer High RF Power Capacitors
Typical Performance Data
Environmental Specifications
Humidity (No Load):
+40 ºC ±2 ºC @ 90%
Electrical Specifications
Dielectric Strength:
2500 Vdc:
to 95% RH, 500 hrs.
1.5 x Rated Voltage
Measure after 24 hrs, cap
for 5 seconds
is ±3% of initial, DF ≤150%
4000 Vdc:
4
of original, IR 3x10
MΩ,
1.2 x Rated Voltage
no visual damage
for 5 seconds
Storage Method:
Store at 0 to +40 ºC at
Dissipation Factor (DF):
≤0.1% @ 1 MHz and
≤5 Vrms
≤60% RH,
use within
Insulation Resistance:
100K MΩ minimum
6 months of receipt, if
@ 500 Vdc ±10%
6 months is exceeded,
check solderability
CDE Cornell Dubilier • 1605 E. Rodney French Blvd. • New Bedford, MA 02744 • Phone: (508)996-8561 • Fax: (508)996-3830 • www.cde.com
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