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Knowles Syfer (Knowles Precision Devices) is a leading manufacturer of high-reliability multilayer ceramic capacitors, EMI filters, and RF microwave components for demanding aerospace, defense, and industrial applications.
Parts that are not part of a series
Company background and product focus
Knowles Syfer, part of Knowles Precision Devices, specializes in high-performance ceramic capacitors and RF components designed for the most demanding applications. Their product portfolio includes multilayer ceramic capacitors (MLCCs), single-layer capacitors, precision variable capacitors, EMI filters, and microwave devices such as RF filters, splitters, and couplers.
The company is renowned for its high-reliability capacitor solutions, including the innovative StackiCap series offering exceptional volumetric efficiency with voltage ratings up to 2000V and capacitance values up to 5.6 microfarads. Their FlexiCap technology provides superior mechanical flexibility, enabling boards to withstand nearly twice the bending stress before cracking occurs.
Knowles Syfer products meet rigorous industry standards including IECQ-CECC, AEC-Q200 automotive qualification, and safety certifications. Their specialized offerings include high-Q capacitors for RF applications, high-temperature variants, non-magnetic options, and radial leaded configurations for diverse mounting requirements.
Parts from Knowles Syfer that are not part of a series
| Part Information | Pricing (lowest) | Accessory Type | For Use With/Related Products | Size / Dimension Width | Size / Dimension Length | Thickness (Max) | Capacitance | Applications | Voltage - Rated | Operating Temperature (Max) | Operating Temperature (Min) | Tolerance | Temperature Coefficient | Mounting Type | Package / Case | Features | Height - Seated (Max) |
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 Knowles Syfer CABLE PROGRAMMING | Sign in to see pricing | Programming Cable | Hearing Aids | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
 Knowles Syfer CAP CER 1000PF 50V X7R 0201 | Sign in to see pricing | — | — | 0.012 in | 0.024 in | 0.013 in | 1000 pF | SMPS Filtering | 50 V | 125 °C | -55 °C | 10 % | X7R | MLCC, Surface Mount | 0201 (0603 Metric) | — | — |
Knowles Syfer CAP CER 10PF 50V C0G/NP0 0201 | Sign in to see pricing | — | — | 0.012 in | 0.024 in | 0.013 in | 10 pF | General Purpose | 50 V | 125 °C | -55 °C | 5 % | C0G, NP0 | MLCC, Surface Mount | 0201 (0603 Metric) | Gold Flash Termination | — |
Knowles Syfer MULTILAYER CERAMIC CAPACITORS MLCC - SMD/SMT MULTILAYER CERAMIC CAPACITOR | Sign in to see pricing | — | — | — | — | — | 3 pF | General Purpose | 16 V | 125 °C | -55 °C | 0.25 pF | C0G, NP0 | MLCC, Surface Mount | 0201 (0603 Metric) | — | — |
 Knowles Syfer MULTI-LAYERED CERAMIC CAPACITOR | Sign in to see pricing | — | — | 0.02 in | 0.039 in | 0.025 in | 1000 pF | General Purpose | 50 V | 125 °C | -55 °C | 10 % | X7R (2R1) | MLCC, Surface Mount | 0402 (1005 Metric) | High Q, Low Loss, Non-Magnetic | — |
Knowles Syfer NON MAG MLCC 10000PF | Sign in to see pricing | — | — | 0.02 in | 0.039 in | 0.025 in | 10000 pF | General Purpose | 50 V | 125 °C | -55 °C | 10 % | X7R (2R1) | MLCC, Surface Mount | 0402 (1005 Metric) | Non-Magnetic | 0.028 in |
Knowles Syfer NON MAG MLCC 4700PF | Sign in to see pricing | — | — | 0.02 in | 0.039 in | 0.025 in | 4700 pF | Boardflex Sensitive, General Purpose | 50 V | 125 °C | -55 °C | 5 % | X7R (2R1) | MLCC, Surface Mount | 0402 (1005 Metric) | Non-Magnetic, Soft Termination | 0.028 in |
Knowles Syfer NON MAG MLCC 470PF | Sign in to see pricing | — | — | 0.02 in | 0.039 in | 0.025 in | 470 pF | Boardflex Sensitive, General Purpose | 250 V | 125 °C | -55 °C | 10 % | X7R (2R1) | MLCC, Surface Mount | 0402 (1005 Metric) | Non-Magnetic, Soft Termination | 0.028 in |
 Knowles Syfer CAP CER 100PF 50V X7R 0402 | Sign in to see pricing | — | — | 0.02 in | 0.04 in | 0.024 in | 100 pF | Boardflex Sensitive | 50 V | 125 °C | -55 °C | 5 % | X7R | MLCC, Surface Mount | 0402 (1005 Metric) | Non-Magnetic, Soft Termination | — |
Knowles Syfer MULTILAYER CERAMIC CAPACITORS MLCC - SMD/SMT CAPACITOR | Sign in to see pricing | — | — | 0.02 in | 0.04 in | 0.024 in | 1000 pF | General Purpose | 50 V | 125 °C | -55 °C | 5 % | X7R | MLCC, Surface Mount | 0402 (1005 Metric) | — | — |
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Product families from Knowles Syfer
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