Single Layer Microwave Capacitors

Note our Single Sheet ordering instructions have recently changed. Please see the SLC Microwaves brochure for details.

Wright Capacitors Inc.’s single sheet (SS) ceramic capacitors chips are intended for DC block, decoupling, filtering, tuning and hybrid applications from direct current through GHz frequencies. Their dual plate construction and low profile make them ideally suited for microwave stripline applications. They display ultra-low series resistance and inductance with high series resonance frequencies. WCI’s SS capacitors use the finest ceramic and electrode materials resulting in a high quality, stable, hermetic device which is unaffected by static discharges.

Terminations are high quality vapor deposited gold, suitable for thermo compression or ultrasonic wire bonding, soldering, or epoxy mounting. Pd Ag terminations are also available.

Microwave capacitors are available in all three dielectric classes. With a wide range of dielectric constants from our new, ultra high Q / high frequency (100GHz +), P9 porcelain to our k=30,000 GBBL dielectric.

Terminations are high quality vapor deposited gold or thick film gold suitable for thermo compression, wire and ribbon bonding, soldering or epoxy. Palladium / Silver and Silver only terminations are also available. Not all termination options are available on all dielectrics. Please consult the factory with any questions.

All units tested to MIL-PRF-49464.

Case Size 1010 1515 2020 2525
Length Inch
(mm)
.010 ± .003
(.254 ± .076)
.015 ± .003
(.381 ± .076)
.020 ± .003
(.508 ± .076)
.025 ± .003
(.635 ± .076)
Width Inch
(mm)
.010 ± .003
(.254 ± .076)
.015 ± .003
(.381 ± .076)
.020 ± .003
(.508 ± .076)
.025 ± .003
(.635 ± .076)
Thick Inch
(mm)
.007 ± .003
(.178 ± .076)
.007 ± .003
(.178 ± .076)
.007 ± .003
(.178 ± .076)
.007 ± .003
(.178 ± .076)
Volt / Cap (pF)  
50V 100V Tol 50V 100V Tol 50V 100V Tol 50V 100V Tol
P (High Q / Fq) Min N/A N/A N/A N/A N/A P 0.08 0.05 P,A 0.14 0.09 A
Max 0.06 N/A P 0.12 0.07 P,A 0.18 0.12 A 0.28 0.17 A
NPQ Min 0.05 0.03 P 0.15 0.1 P,A 0.3 0.2 A,B 0.7 0.4 B,C
Max 0.22 0.12 A 0.4 0.25 A,B 0.7 0.4 B,C 1 0.6 B,C,D
NPO Min 0.2 0.14 A 0.6 0.4 A,B 1.2 0.8 A,B 2 1.3 A,B,C
Max 0.9 0.5 A,B 1.6 1 C,D 2.6 1.6 C,D 4 2.4 C,D
X7R Min 5.5 3.5 K,M 16 10 K,M 32 20 K,M 54 34 K,M
Max 23 13 K,M 43 26 K,M 70 42 K,M 100 64 K,M
Z5U Min N/A N/A M 45 30 M 90 60 M 150 100 M
Max N/A N/A M 125 75 M 200 120 M 300 180 M
Y5V Min N/A N/A M 70 44 M 140 90 M 230 150 M
Max N/A N/A M 180 110 M 300 180 M 460 270 M
 
Max Min Tol Max Min Tol Max Min Tol
GBBL 16V and 25V 290 250 M 520 450 M 820 700 M


Case Size 3030 3535 5050 9090
Length Inch
(mm)
.030 ± .003
(.762 ± .076)
.035 ± .003
(.889 ± .076)
.050 ± .005
(1.27 ± .127)
.090 ± .005
(2.29 ± .127)
Width Inch
(mm)
.030 ± .003
(.726 ± .076)
.035 ± .003
(.889 ± .076)
.050 ± .005
(1.27 ± .127)
.090 ± .005
(2.29 ± .127)
Thick Inch
(mm)
.007 ± .003
(.178 ± .076)
.007 ± .003
(.178 ± .076)
.007 ± .003
(.178 ± .076)
.007 ± .003
(.178 ± .076)
Volt / Cap (pF)  
50V 100V Tol 50V 100V Tol 50V 100V Tol 50V 100V Tol
P (High Q / Fq) Min 0.2 0.14 A 0.3 0.2 A 0.6 0.4 A,B 2 1.3  
Max 0.38 0.22 A,B 0.5 0.3 A,B 1 0.6 B,C 3.1 2 C,D
NPQ Min 0.7 0.5 B,C 1.1 0.7 B,C 2.2 1.4 B,C,D 7.5 5 C,D
Max 1.4 0.85 B,C,D 1.8 1.1 B,C,D 3.9 2.4 C,D 12 7 C,D
NPO Min 3 2 C,D 4.2 2.7 C,D 8.2 5.4 C,D 30 19 C,D
Max 5.4 3.3 C,D 7.2 4.3 C,D,K 15 9 C,D,K 45 27 K,M
X7R Min 80 52 K,M 110 73 K,M 220 150 K,M 800 500 K,M
Max 150 88 K,M 200 120 K,M 400 240 K,M 1200 720 K,M
Z5U Min 230 150 M 320 210 M 640 420 M 2300 1500 M
Max 420 250 M 560 330 M 1200 700 M 3500 2000 M
Y5V Min 350 220 M 490 320 M 2700 1700 M 3400 2200 M
Max 640 380 M 850 510 M 3200 2000 M 5300 3200 M
 
  Max Min Tol Max Min Tol Max Min Tol Max Min Tol
GBBL 16V and 25V 1200 1000 M 1600 1400 M 3300 2800 M 9000 10000 M

Microwave SLC Brochure

Dielectric Characteristics

Dielectric Temperature Coefficient Dissipation Factor Insulation Resistance
P (High Q / Fq) Neg. ≤0.001% >1000GΩ
NPQ 0±30ppm ≤0.1% >1000GΩ
NPO 0±30ppm ≤0.15% >100GΩ
X7R ±15% (-55 to 125°C) ≤2.5% >100GΩ
Z5U +22/-56% (-10 to 85°C) ≤4.0% >10GΩ
Y5V +22/-82% (-30 to 85°C) ≤4.0% >10GΩ
GBBL ±15% (-55 to 125°C) ≤2.5% >10GΩ

Axial-beam leaded, leaded and coated, circular discs, cap arrays and tight tolerances are also available. Standard disc sizes are .045”, .050”, .060”, .080” and .120” O.D. (all =/-.005”). High voltage single layer (SL’s) up to 20KV are also available. Please consult the factory for any special requirements.

Other Characteristics

DWV at 2.5 X working voltage
Test parameters >100pF 1kHz, 1.0Vrms, 25°C / ≤100pF 1MHz, 1.0Vrms, 25°C
Min Bond Strength 3.0gram (0.001 in dia. Au wire)

Ordering Information

SS 2020 X 121 J G 501
SS = Microwave "Single Sheets"
SD = Microwave "Single Discs"
SL = High Voltage
Part Size i.e.
0502 = .050"x.020"
Two or three digits only for squares and discs. Six digits for SL's > 1.0" rectangular.
Dielectric Material
P = P9
Q = NPQ
N = NPO
X = X7R
Z = Z5U
Y = Y5V
G = GBBL
Capacitance Value Code
102 = 1000pF
First 2 digits are significant, the third denotes number of zeros
Tolerance
J = ±5%
K = ±10%
M = ±20%
Z = +80%/-20%
V = +100%
A = ±0.05pF
B = ±0.1pF
D = ±0.5pF
P = ±0.01pF
F = ±1%
G = ±2%
Termination Type
A = Ag
D = Pd/Ag
G = Au
Voltage
250 = 25volt
First 2 numbers are significant, the third denotes the number of zeros.
"R" represents a decimal point so
6R3 = 6.3 volt