C0G/NP0
C0G/NP0 is a Class I paraelectric ceramic dielectric based on non-BaTiO₃ compositions, giving a near-zero and highly linear temperature coefficient of capacitance.
Reference datasheet — C0G/NP0 is not in the instant-quote catalog. Upload your part and an engineer will quote it in this grade or suggest the closest stocked equivalent.
Values for the BNT condition
C0G/NP0 tempers and conditions
C0G/NP0 is supplied in 4 conditions, soft to hard. BNT is the default FabDigit quotes; the values on this page are for it.
Compare all 4 conditionsHide
| Condition · open for datasheet | Best for | Yield MPa | Tensile MPa | Elong. % | Hardness | Conductivity |
|---|---|---|---|---|---|---|
Ⅰ / NP0 | Use for high-voltage disc capacitors and RF power or coupling parts: the glass-bonded low-permittivity Class I body withstands high voltage and forms easily in thick walls, at low capacitance density. | 620 HV | 3 W/m·K | |||
BNTDefault BaO–Nd₂O₃–TiO₂ C0G Ag/Pd | Use for high-capacitance Class I MLCCs: εr of about 60–90 with Ag/Pd inner electrodes gives the highest volumetric efficiency among Class I ceramics, rated to 125 °C. | 680 HV | 3 W/m·K | |||
Ca,Sr)(Zr,Ti)O₃ (Ni | Pick for automotive Class I parts working at 150–200 °C: the reduction-resistant body co-fires with base-metal Ni electrodes, cutting cost while keeping high insulation resistance hot. | 720 HV | 3 W/m·K | |||
MgTiO₃–CaTiO₃ Q | Choose when Q must be highest and loss lowest — RF resonators, microwave dielectric bodies, high-frequency power NP0 discs — accepting an εr of only about 20; usable to 200 °C. | 800 HV | 6 W/m·K |
What is C0G/NP0?
C0G/NP0 is a Class I paraelectric ceramic dielectric based on non-BaTiO₃ compositions, giving a near-zero and highly linear temperature coefficient of capacitance. It is chosen for precision RF and timing circuits and is supplied as multilayer chips with base-metal or precious-metal electrodes and as high-voltage discs, with density about 5.7 g/cm³, elastic modulus 120 GPa and thermal conductivity 3 W/m·K. Rated service temperature is 125 °C. Volumetric efficiency is far below Class II dielectrics, so available capacitance is limited and cost per nanofarad is higher; use X7R where size matters more than stability. C0G/NP0 has a density of 5.7 g/cm³ (0.206 lb/in³), heavier than 58% of ceramic grades. It melts at 1,450°C (2,642 °F). C0G/NP0 has a tensile strength of 60 MPa (8.7 ksi), weaker than 63% of ceramic grades. The elastic modulus is 120 GPa (17.4 Msi).
What is C0G/NP0 used for?
- RF filters
- oscillator circuits
- precision timing capacitors
- resonant circuits
Advantages
- Good corrosion resistance — 90/100, better than 81% of ceramic grades
Limitations
- Limited service temperature — 125°C (257 °F), worse than 94% of ceramic grades
- Poor heat conductor — 3 W/m·K (1.73 BTU/hr·ft·°F), worse than 77% of ceramic grades
C0G/NP0 properties
Typical room-temperature values for C0G/NP0-BNT; bars are the position among ceramic grades.
Physical3
C0G/NP0 has a density of 5.7 g/cm³ (0.206 lb/in³), heavier than 58% of ceramic grades. It melts at 1,450°C (2,642 °F).
Mechanical11
C0G/NP0 has a tensile strength of 60 MPa (8.7 ksi), weaker than 63% of ceramic grades. The elastic modulus is 120 GPa (17.4 Msi).
Thermal5
C0G/NP0 is rated for continuous service to 125°C (257 °F). It conducts heat at 3 W/m·K (1.73 BTU/hr·ft·°F), worse than 77% of ceramic grades. Thermal expansion is 9.5 µm/m·K (5.28 µin/in·°F).
Electrical5
C0G/NP0 is an electrical insulator with a dielectric strength of 25 kV/mm (635 V/mil) and a resistivity of 1×10¹¹ Ω·m.
Chemical & Environmental2
Corrosion resistance is excellent (90/100), better than 81% of ceramic grades.
Sustainability4
Producing a kilogram of C0G/NP0 takes about 70 MJ of energy and emits 6 kg of CO₂ — less than 71% of ceramic grades. Typical recycled content is 0%.
Manufacturability3
C0G/NP0's machinability is not recommended (5/100, worse than 59% of ceramic grades).
Common Calculations4
Values are nominal handbook figures for design screening. Certified mill or lot data ships with every FabDigit order on request.
Strength versus weight in the ceramic family
Yield strength against density for every ceramic grade FabDigit runs. C0G/NP0 is highlighted; hover a dot for its name, or open the interactive family chart.
Working with C0G/NP0
Is C0G/NP0 easy to machine?
After firing, only diamond grinding or laser scribing is practical; complex shapes must be punched, stacked or turned in the green state and then sintered.
Can C0G/NP0 be welded?
Ceramic cannot be welded. Parts are terminated with screen-printed Ag/Cu electrodes and Ni/Sn plating for reflow or wave soldering, or metallised with glass solder or active brazing.
Can C0G/NP0 be formed, bent or molded?
Discs are dry pressed; MLCCs are tape cast with screen-printed internal electrodes and isostatically laminated. After binder burnout, fire at 1100–1380 °C in air or in a reducing atmosphere.
C0G/NP0 chemical composition (wt %)
Limits by weight percent from the governing specification, written the way the spec states them — a single maximum for impurities, a range for alloying elements, and the base element as balance. Nominal is the typical mid-range value.
| Element | Spec limit (wt %) | Nominal |
|---|---|---|
| TiO2main crystalline phase former (BNT system) | 40 – 52 | 46 |
| Nd2O3partly replaceable by Sm2O3/La2O3 to tune TCC | 26 – 38 | 32 |
| BaOusually introduced as BaCO3 | 12 – 22 | 18 |
| Bi2O3lowers sintering temperature, fine-tunes TCC | 0 – 6 | 3 |
| SiO2 + MnO +sintering aid/grain-boundary modifier; controls IR and Q | ≥ 0.2 (balance) |
What surface finishes work on C0G/NP0?
Dip terminations in silver or copper paste and fire in, then electroplate Ni/Sn as a solder barrier. Surfaces can be ground and polished, and chips are tumbled to deburr and preserve dielectric edge integrity.
Equivalent designations
Standards and trade names that resolve to C0G/NP0 in FabDigit's catalog. Equivalence is nominal — check the exact specification when certification matters.
- Also called
- C0GNP0
How much does C0G/NP0 cost?
C0G/NP0 is a high-cost ceramic ($$$$), pricier than about 78% of the materials FabDigit quotes. Part price depends far more on geometry, tolerance and quantity than on the raw stock — upload a CAD file for a live quote.
C0G/NP0 — frequently asked
What is C0G/NP0 used for?
C0G/NP0 is typically used for RF filters, oscillator circuits, precision timing capacitors and resonant circuits. In short: most stable ceramic dielectric; class I, near-zero TCC; low capacitance density.
What is the tensile strength of C0G/NP0?
C0G/NP0 has a typical tensile strength of 60 MPa (8.7 ksi) — weaker than 63% of ceramic grades. Strength varies by condition: see the 4 listed tempers.
Is C0G/NP0 easy to machine?
Not especially — machinability is rated not recommended (5/100, worse than 59% of ceramic grades). After firing, only diamond grinding or laser scribing is practical; complex shapes must be punched, stacked or turned in the green state and then sintered.
Can C0G/NP0 be welded?
Ceramic cannot be welded. Parts are terminated with screen-printed Ag/Cu electrodes and Ni/Sn plating for reflow or wave soldering, or metallised with glass solder or active brazing.
What surface finishes work on C0G/NP0?
Dip terminations in silver or copper paste and fire in, then electroplate Ni/Sn as a solder barrier. Surfaces can be ground and polished, and chips are tumbled to deburr and preserve dielectric edge integrity.
Can C0G/NP0 be formed, bent or molded?
Discs are dry pressed; MLCCs are tape cast with screen-printed internal electrodes and isostatically laminated. After binder burnout, fire at 1100–1380 °C in air or in a reducing atmosphere.
What is the maximum service temperature of C0G/NP0?
C0G/NP0 is rated for continuous use to about 125°C (257 °F). Strength falls off well before that limit — check the elevated-temperature data for load-bearing parts.
How much does C0G/NP0 cost?
C0G/NP0 is a high-cost ceramic ($$$$), pricier than about 78% of the materials FabDigit quotes. Part price depends far more on geometry, tolerance and quantity than on the raw stock — upload a CAD file for a live quote.
Sources
- EIA-198 / IEC 60384-8 & 60384-21 Class I ceramic dielectrics (COG/NP0) — ECIA / IEC (2019)
- ASM Engineered Materials Handbook Vol.4: Ceramics and Glasses — ASM International (1991)
- Ceramic Materials for Electronics (Buchanan) — CRC Press (2004)
- MLCC — Class I (C0G) — KEMET / Murata / (2023)
- Electronic dielectric powders (BNT / MgTiO₃-CaTiO₃ systems) — Ferro (Vibrantz) / TAM Ceramics (2022)
Property data is compiled from published supplier and standards handbooks and normalised for comparison; hardness values on non-Brinell scales are converted approximately for charting only. Manufacturability limits are FabDigit quote-engine defaults and may be relaxed by engineering review. Nothing on this page is a certification — request mill certs, CoC or material test reports with your order.