Johanson Silver E-Series Capacitors are High RF power and low loss ceramic multilayer RF capacitors (High Frequency MLCC’s). This ultra-High-Q E-Series of products use nearly pure silver electrodes, which is a superior high frequency conductor compared to palladium. Accordingly, the performance of these products sets a new standard in the industry for low ESR capacitors.
Utilizing a modern dielectric system, these NPO capacitors exhibit the lowest losses, excellent high voltage performance and excellent temperature stability.

Available in numerous termination and Lead styles, as well as custom Lead configurations.

  • Standard EIA Size: 1111
  • Capacitance Range 0.2 - 1000 pF
  • RF Power Application
  • Lowest ESR in Class
  • Excellent high-Q performance
  • HF to Microwave frequencies
  • High Self-Resonance Frequencies
  • Exhibits NP0 temperature characteristics
  • RoHS Compliant
  • Electrode Orientation on T&R Available
Circuit Applications
  • Commmunication amplifiers
  • Power converters
  • Filter Networks
  • Circuit Matching
  • Amplitude modulators
  • Antenna Matching, high power circuitry
  • High Frequency Communications
  • Portable Wireless Products
  • Battery powered products
  • MRI Coils
  • HPA (some MHz to Gigahertz-GSM-PCN-CDMA-WD CDMA-PMR-etc)
  • Military tactical radio
1111 s42 e-series ulra high q high rf power and low loss multi layer high q capacitors

1111 s42e multi layer high q capacitor for High Frequency Communications battery powered and wireless products
S42E SRF (Series Mount), Typical
1111 42e series resonance chart
Electrical Specifications
Case Size:1111
Capacitance:0.2 - 1000 pF
Operating Temperature:-55 to +125°C
Insulation Resistance:>1000 ΩF or >10 GΩ, whichever is less @ 25°C WVDC
Temperature Coefficent:± 30ppm /°C, -55 to 125°C
Dissipation Factor (TYP.):< 0.05% @ 1 MHz
Mechanical Specifications
 SpecificationTest Parameters
Solderability:Solder coverage = 90% of metalized areas No termination degradationPreheat chip to 120°-150°C for 60 sec., dip terminals in rosin flux then dip in Sn62 solder @ 240°±5°C for 5±1 sec
Resistance to Soldering Heat:No mechanical damage Capacitance change: ±2.5% or 0.25pF Q>500 I.R. >10 G Ohms Breakdown voltage: 2.5 x WVDCPreheat device to 80°-100°C for 60 sec. followed by 150°-180°C for 60 sec. Dip in 260°±5°C solder for 10±1 sec. Measure after 24±2 hour cooling period
Terminal Adhesion:Termination should not pull off.Linear pull force* exerted on axial leads soldered to each terminal. *0402 = 2.0lbs, 0603 = 2.0lbs (min.)
PCB Deflection:No mechanical damage. Capacitance change: 2% or 0.5pF MaxGlass epoxy PCB: 0.5 mm deflection
Environmental Specifications
 SpecificationTest Parameters
Life test:No mechanical damage. Capacitance change: ±3.0% or 0.3 pF Q>500 I.R. >1 G Ohms Breakdown voltage: 2.5 x WVDCApplied voltage: 200% rated voltage, 50 mA max. Temperature: 125°±3°C Test time: 1000+48-0 hours
Thermal Cycle:No mechanical damage. Capacitance change: ±2.5% or 0.25pF Q>2000 I.R. >10 G Ohms5 cycles of: 30±3 minutes @ -55°+0/-3°C, 2-3 min. @ 25°C, 30±3 min. @ +125°+3/-0°C, 2-3 min. @ 25°C Measure after 24±2 hour cooling period
Humidity, Steady State:No mechanical damage. Capacitance change: ±5.0% or 0.50pF max. Q>300 I.R. = 1 G-Ohmbr /> Breakdown voltage: 2.5 x WVDCRelative humidity: 90-95% Temperature: 40°±2°C Test time: 500 +12/-0 Hours Measure after 24±2 hour cooling period
Humidity, Low Voltage:No mechanical damage. Capacitance change: ±5.0% or 0.50pF max. Q>300 I.R. = 1 G-Ohm min. Breakdown voltage: 2.5 x WVDCApplied voltage: 1.5 VDC, 50 mA max. Relative humidity: 85±2% Temperature: 40°±2°C Test time: 240 +12/-0 Hours Measure after 24±2 hour cooling period
Vibration:No mechanical damage. Capacitance change: ±2.5% or 0.25pF Q>1000 I.R. = 10 G-Ohm Breakdown voltage: 2.5 x WVDCCycle performed for 2 hours in each of three perpendicular directions. Frequency range 10Hz to 55 Hz to 10 Hz traversed in 1 minute. Harmonic motion amplitude: 1.5mm.
Capacitance Values
Value (pF)Cap CodeTolerances
0.1 0R1 A, B, C, D
0.2 0R2 A, B, C, D
0.3 0R3 A, B, C, D
0.4 0R4 A, B, C, D
0.5 0R5 A, B, C, D
0.6 0R6 A, B, C, D
0.7 0R7 A, B, C, D
0.8 0R8 A, B, C, D
0.9 0R9 A, B, C, D
1.0 1R0 A, B, C, D
1.1 1R1 A, B, C, D
1.2 1R2 A, B, C, D
1.3 1R3 A, B, C, D
1.4 1R4 A, B, C, D
1.5 1R5 A, B, C, D
1.6 1R6 A, B, C, D
1.7 1R7 A, B, C, D
1.8 1R8 A, B, C, D
1.9 1R9 A, B, C, D
2.0 2R1 A, B, C, D
2.1 2R1 A, B, C, D
2.2 2R2 A, B, C, D
2.4 2R4 A, B, C, D
2.7 2R7 A, B, C, D
3.0 2R0 A, B, C, D
3.3 3R3 A, B, C, D
3.6 3R6 A, B, C, D
3.9 3R9 A, B, C, D
4.3 4R3 A, B, C, D
4.7 4R7 A, B, C, D
5.1 5R1 B, C, D
5.6 5R6 B, C, D
6.2 6R2 B, C, D
6.8 6R8 B, C, D
7.5 7R5 B, C, D
8.2 8R2 B, C, D
9.1 9R1 B, C, D
10 100 F, G, J, K
11 110 F, G, J, K
12 120 F, G, J, K
13 130 F, G, J, K
15 150 F, G, J, K
16 160 F, G, J, K
18 180 F, G, J, K
20 200 F, G, J, K
22 220 F, G, J, K
24 240 F, G, J, K
27 270 F, G, J, K
30 300 F, G, J, K
33 330 F, G, J, K
36 360 F, G, J, K
39 0R2 F, G, J, K
43 430 F, G, J, K
47 470 F, G, J, K
51 510 F, G, J, K
56 560 F, G, J, K
62 620 F, G, J, K
68 680 F, G, J, K
75 750 F, G, J, K
82 820 F, G, J, K
91 910 F, G, J, K
100 101 F, G, J, K
Custom Values Available - Contact Factory
RF Characteristics Versus Frequency
Equivalent Series Resistance: 1111/S42E
Equivalent Series Resistance: 1111/S42E chart
Q Factor: 1111/S42E
Q Factor: 1111/S42E chart
RF Characterisitcs Versus Capacitance
S42E Equivalent Series Resistance vs Capacitance, Typical
Equivalent Series Resistance: 1111/S42E chart
S42E Q vs. Capacitance, Typical
Q Factor: 1111/R15S chart
Terminations and leads
V, T
U, C
S42E in0.110 +.020 -.010 0.110 +/- .015 0.086 Max. 0.015 Typ. +/- 0.008
mm 2.79 +0.51 -0.25 2.79 +/- 0.38 2.18 Max. 0.38 Typ. +/- 0.20
For all E-Series Models:
OPERATING TEMP.: -55 to +125°C
TEMPERATURE COEFFICIENT: 0 ± 30ppm /°C, -55 to 125°C
1111 s42 e-series leads chart


How to Order
1111 s42E how to order part number