ATC is a QPL Approved Supplier for MIL-PRF-55681/4 and /5 Products Listed Below
This manual covers the general requirements for established reliability fixed, multilayer, unencapsulated, monolithic
porcelain and ceramic dielectric capacitors. These capacitors are intended for use in RF solid state circuitry up to and
including 25 gigahertz and cannot be replaced in the field. The porcelain dielectric (Characteristic BG) has a temperature
coefficient of +90 ±20 PPM/°C over the temperature range of -55°C to +125°C. The ceramic dielectric (Characteristic BP) has
a temperature coefficient of 0 ±30 PPM/°C over the temperature range of -55°C to +125°C. The minimum, self-resonant
frequencies of the capacitors are specified. For example, a 1 pF size B is specified as 6 GHz. minimum.
ATC PART NUMBER CODE:
CDR
DESIGNATION: Identifies
established reliability, ceramic
dielectric, fixed, chip capacitors.
12
B
G
101 A
F
W
S
FAILURE RATE LEVEL
(Established at 90% confidence):
M - - 1% per 1000 hours
P - - 0.1% per 1000 hours
R
- - 0.01% per 1000 hours
S
- - 0.001% per 1000 hours
TERMINATION FINISH:
N - Gold over Nickel over Silver (CDR11, CDR13)
S - Solder Coated, Final (CDR12, CDR14, CDR23, CDR25)
T - Silver (CDR21, CDR22, CDR24)
U - Solder Coated, Nickel Barrier (CDR12, CDR14)
N and U - Terminations preferred for best solder-
ability, thermocompression bonding, leach and mig-
ration resistance, and shelf life for chips and pellets.
W - Solder plated, nickel barrier (CDR12, CDR14)
STYLE: Identifies dimensions of the
capacitor and lead type, where applicable.
RATED TEMP: -55°C to +125°C
VOLTAGE TEMP. (T.C.) LIMITS:
G = +90 ±20 PPM/°C; P = 0 ±30 PPM/°C
CAPACITANCE CODE: The first two digits represent
significant figures and the last digit specifies the number
of zeros to follow. When fractional values of pF are required,
the letter R shall be used to indicate the decimal point.
RATED DC VOLTAGE @ 125°C:
A - - 50 VDC, B - - 100 VDC, C - - 200 VDC,
D - - 300 VDC, E - - 500 VDC, K - - 150 VDC
CAPACITANCE TOLERANCE:
B (±0.1 pF), C (±0.25 pF), D (±0.5 pF), F (±1%),
G (±2%), J (+5%), K (±10%), M (±20%)
TABLE I - STYLES CDR11 AND CDR12 CAPACITOR CHARACTERISTICS
TYPE DESIGNATION*
CAPACITANCE
RANGE (pF)
0.1 pF to 0.2 pF
0.3 pF to 0.4 pF
0.5 pF to 2.2 pF
2.4 pF to 6.2 pF
6.8 pF to 9.1 pF
10 pF to 100 pF
110 pF to 1000 pF
CAPACITANCE
TOLERANCE
AVAILABLE
B
B, C
B, C, D
B, C, D
B, C, J, K, M
F, G, J, K, M
F, G, J, K, M
RATED TEMP. AND
VOLTAGE-TEMP.
LIMITS
Characteristic BG
(+90 ±20 PPM/°C)
and
Characteristic BP
(0 ±30 PPM/°C)
BP
RATED DC
VOLTAGE
CDR1-B-0R1AB-- to CDR1-B-0R2AB--
CDR1-B-0R3A--- to CDR1-B-0R4A---
CDR1-B-0R5A--- to CDR1-B-2R2A---**
CDR1-B-2R4A--- to CDR1-B-6R2A---***
CDR1-B-6R8A--- to CDR1-B-9R1A---***
CDR1-B-100A--- to CDR1-B-101A---***
CDR1-BP111A--- to CDR1-BP102A---***
150 = K
50 = A
TABLE II - STYLES CDR13 AND CDR14 CAPACITOR CHARACTERISTICS
TYPE DESIGNATION*
CAPACITANCE
RANGE (pF)
0.1 pF to 0.2 pF
0.3 pF to 0.4 pF
0.5 pF to 2.2 pF
2.4 pF to 6.2 pF
6.8 pF to 9.1 pF
10 pF to 100 pF
110 pF to 200 pF
220 pF to 470 pF
510 pF to 620 pF
680 pF to 1000 pF
1100 pF to 5100 pF
CAPACITANCE
TOLERANCE
AVAILABLE
B
B, C
B, C, D
B, C, D
B, C, J, K, M
RATED TEMP. AND
VOLTAGE-TEMP.
LIMITS
RATED DC
VOLTAGE
CDR1-B-0R1EB-- to CDR1-B-0R2EB--
CDR1-B-0R3E--- to CDR1-B-0R4E---
CDR1-B--0R5E--- to CDR1-B-2R2E---**
CDR1-B-2R4E--- to CDR1-B-6R2E---***
CDR1-B-6R8E--- to CDR1-B-9R1E---***
CDR1-B-100E--- to CDR1-B-101E---***
CDR1-B-111D--- to CDR1-B-201D---***
CDR1-B-221C--- to CDR1-B-471C---***
CDR1-B-511B--- to CDR1-B-621B---***
CDR1-B-681A--- to CDR1-B-102A---***
CDR1-BP112A--- to CDR1-BP512A---***
*
Characteristic BG
(+90 ±20 PPM/°C)
and
Characteristic BP
(0 ±30 PPM/°C)
500 = E
F, G, J, K, M
300 = D
200 = C
100 = B
50 = A
BP
Complete type designation will include additional symbols to indicate style, voltage-temperature limits, capacitance tolerance
(where applicable), termination finish, and failure rate level.
** Intermediate values in this category are in 0.1 pF steps.
*** Intermediate values in each category are given by the RETMA 5% Table as follows: 10, 11, 12, 13, 15, 16, 18, 20, 22, 24, 27, 30, 33, 36,
39, 43, 47, 51, 56, 62, 68, 75, 82, 91.
A M E R I C A N
T E C H N I C A L
ATC Europe
sales@atceramics-europe.com
C E R A M I C S
ATC Asia
+86-755-8366-4318 sales@atceramics-asia.com
2
ATC North America
631-622-4700 sales@atceramics.com
+46 8 6800410
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ATC is a QPL Approved Supplier for MIL-PRF-55681/4 and /5 Products Listed Below
TABLE III - STYLES CDR21 TO CDR25 CAPACITOR CHARACTERISTICS
TYPE DESIGNATION*
CAPACITANCE
RANGE (pF)
0.1 pF to 0.2 pF
0.3 pF to 0.4 pF
0.5 pF to 2.2 pF
2.4 pF to 6.2 pF
6.8 pF to 9.1 pF
10 pF to 100 pF
110 pF to 200 pF
220 pF to 470 pF
510 pF to 620 pF
680 pF to 1000 pF
1100 pF to 5100 pF
CAPACITANCE
TOLERANCE
AVAILABLE
B
B, C
B, C, D
B, C, D
B, C, J, K, M
RATED TEMP. AND
VOLTAGE-TEMP.
LIMITS
RATED DC
VOLTAGE
CDR2-B-0R1EB-- to CDR2-B-0R2EB--
CDR2-B-0R3E--- to CDR2-B-0R4E---
CDR2-B--0R5E--- to CDR2-B-2R2E---**
CDR2-B-2R4E--- to CDR2-B-6R2E---***
CDR2-B-6R8E--- to CDR2-B-9R1E---***
CDR21-B-100E--- to CDR2-B-101E---***
CDR2-B-111D--- to CDR2-B-201D---***
CDR2-B-221C--- to CDR2-B-471C---***
CDR2-B-511B--- to CDR2-B-621B---***
CDR2-B-681A--- to CDR2-B-102A---***
CDR2-BP112A--- to CDR2-BP512A---***
*
Characteristic BG
(+90 ±20 PPM/°C)
and
Characteristic BP
(0 ±30 PPM/°C)
500 = E
F, G, J, K, M
BP
300 = D
200 = C
100 = B
50 = A
Complete type designation will include additional symbols to indicate style, voltage-temperature limits, capacitance tolerance
(where applicable), termination finish (T for styles CDR21, CDR22 and CDR24, and S for styles CDR23 and CDR25), and failure rate level.
Please note:
Leaded devices CDR 21 through CDR 25 are available to the R Failure Rate Level only.
** Intermediate values in this category are in 0.1 pF steps.
*** Intermediate values in each category are given by the RETMA 5% Table as follows: 10, 11, 12, 13, 15, 16, 18, 20, 22, 24, 27, 30, 33, 36, 39, 43, 47, 51, 56, 62, 68, 75, 82, 91.
MECHANICAL CONFIGURATIONS
MIL-PRF-
55681
STYLES
CDR 11
CASE
SIZE
A
CA
L
BODY DIMENSIONS
TYPE
Chip
OUTLINES
LENGTH
WIDTH
THICKNESS
LEAD AND TERMINATION
DIMENSIONS
AND MATERIALS
N - Gold Over Nickel
Over Silver
N is ATC's UNI-TERM®
W
T
.055 ±.015
(1.4 ±0.38)
.110 ±.020
(2.79 ±0.51)
.055 ±.025
(1.4 ±0.63)
T
.020/.057
(0.51/1.45)
.030/.102
(0.76/2.59)
.020/.057
(0.51/1.45)
.030/.102
(0.76/2.59)
.020/.057
(0.51/1.45)
.030/.102
(0.76/2.59)
CDR 13
B
CA
Chip
W/T IS A
TERMINATION SURFACE
CDR 12
A
P
Pellet
L
W
.055 ±.015
(1.4 ±0.38)
.110 ±.020
(2.79 ±0.51)
CDR 14
B
P
Pellet
W/T IS A
TERMINATION SURFACE
.110 +.035 -.020
(2.79 +0.89 -0.51)
S - Solder Coated, Final
U - Solder Coated,
Nickel Barrier
U is ATC's BARRIER/CAP®
CDR 12
A
Solder Plate
W
L
W
T
.055 ±.015
(1.4 ±0.38)
.110 ±.020
(2.79 ±0.51)
W - Nickel Barrier,
Solder Plate.
CDR 14
B
B
Solder Plate
W
W/T IS A
TERMINATION SURFACE
TL
LL
WL
CDR 21
Microstrip
MS
L
LENGTH
W
T
TL
WIDTH
THICK-
NESS
CDR 22
B
AR
Axial
Ribbon
Radial
Ribbon
LL
WL
W
L
LL
.250 (6.35)
min.
T
.093
±.005
(2.36
±0.13)
.004
±.001
(0.10
±0.03)
CDR 24
B
RR
W
L
T
WL
.135 ±.015
(3.43 ±0.38)
.110 ±.015
(2.79 ±0.38)
.060/.100
(1.52/2.54)
(Termination T - Silver)
CDR 23
B
Radial
Wire
RW
Axial
Wire
LL
• •
L
LL
T
W
CDR 25
B
AW
.50 (12.7)
min.
•
T
••
L
#26 AWG
.016 (.375)
dia. nom.
W
(Termination S - Solder Coated)
All leads and ribbon are silver and are attached with high temperature solder.
All dimensions are in inches, except those in parentheses which are in millimeters.
STYLE
CDR11
CDR12
CDR13
CDR14
EQUIV. ATC PART NO.
CHARACTERISTICS
BG
BP
100A
100A
100B
100B
700A
700A
700B
700B
STYLE
CDR21
CDR22
CDR23
CDR24
CDR25
EQUIV. ATC PART NO.
CHARACTERISTICS
BG
BP
100B ------ MS
100B ------ AR
100B ------ RW
100B ------ RR
100B ------ AW
700B ------ MS
700B ------ AR
700B ------ RW
700B ------ RR
700B ------ AW
A M E R I C A N
ATC North America
631-622-4700 sales@atceramics.com
T E C H N I C A L
ATC Europe
sales@atceramics-europe.com
C E R A M I C S
ATC Asia
+86-755-8366-4318 sales@atceramics-asia.com
+46 8 6800410
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PCB Design
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