CL21C680GBANNNC - 68pF 50V C0G 0805 MLCC 2% | Samsung
Teilenummer: CL21C680GBANNNC ✓ Aktiv| Menge | Stückpreis | Gesamt |
|---|---|---|
| 1 | $0.09 | $0,09 |
| 10 | $0.07 | $0,70 |
| 100 | $0.045 | $4,50 |
| 500 | $0.032 | $16,00 |
| 1.000 | $0.022 | $22,00 |
| 4.000 | $0.016 | $64,00 |
CL21C680GBANNNC Übersicht
A ceramic capacitor is a passive two-terminal component that stores energy in an electric field created by alternating layers of metal electrodes and a ceramic dielectric. Within the ceramic MLCC family, C0G (also written NP0) is the "temperature-compensating" class 1 dielectric defined by the EIA standards; it offers the highest stability, lowest loss (tan δ), and highest Q factor among all ceramic classes. CL21C680GBANNNC belongs to Samsung's CL series — a broad MLCC product line spanning 0201 to 2220 case sizes — positioned inside the wider hierarchy MLCC → ceramic capacitor → capacitor → passive component → electronic component.
Key specifications include ±2% capacitance tolerance, a 50 VDC rated voltage, and C0G (NP0) dielectric classification. The 0805 case (EIA 2012) provides compact placement suitable for high-density PCB designs, while the X7R-grade mechanical stability of the part supports standard reflow profiles. Class 1 C0G capacitors exhibit essentially flat capacitance versus DC bias (versus X5R/X7R where DC bias can derate by 30-80%), making them preferred for precision analog filter, RF, and timing circuits.
The CL21C680GBANNNC uses a vertically stacked nickel-barrier + tin (Ni/Sn) termination finish compatible with lead-free reflow soldering up to 260 °C peak. The internal monolithic construction is a single ceramic body with screened electrodes, yielding excellent solderability and long-term reliability. The part is qualified to Samsung's standard reliability tests, equivalent to the typical automotive and industrial-grade test regimes, and supports high-speed automated pick-and-place assembly.
Typical applications include RF/microwave VCO tank circuits, precision analog filters, ADC/DAC sample-and-hold capacitors, oscillator start-up networks, and high-frequency bypass on sensitive analog nodes. The 68 pF value is commonly used as a load, coupling, or feedback capacitor in the 50-500 MHz band. C0G stability makes the part especially suited to circuits where capacitance drift would degrade performance — for example, PLL loop filters, crystal load capacitors, and impedance-matching networks.
When designing, note that a 2% tolerance on a 68 pF part yields ±1.36 pF absolute accuracy — superior to X7R-class 10% or 20% parts of the same value. For PCB layout, place the 0805 pads on a 1.27 mm pitch with adequate clearance for the solder fillets, and respect the manufacturer's recommended land pattern to avoid tombstoning during reflow.
This page synthesizes distributor pricing, drop-in alternatives, and practical design notes that complement the manufacturer datasheet.
Drop-in-Alternativen für CL21C680GBANNNC – gleiches Gehäuse, Pin-kompatibel. Bauteile mit anderem Gehäuse, die eine PCB-Überarbeitung erfordern, sind ausgeschlossen.
Schnellvergleichstool – Wählen Sie Alternativbauteile für den Direktvergleich:
CL21C680JBANNNC
✅ Drop-In📋 Referenzalternative (nicht im Katalog)
CL21C680GBANNND
✅ Drop-In📋 Referenzalternative (nicht im Katalog)
08055A680GAT2A
✅ Drop-In📋 Referenzalternative (nicht im Katalog)
GRM2165C1H680GA01D
✅ Drop-In📋 Referenzalternative (nicht im Katalog)
CC0805GKNPO9BN680
✅ Drop-In📋 Referenzalternative (nicht im Katalog)
C2012C0G1H680G060AA
✅ Drop-In📋 Referenzalternative (nicht im Katalog)
CL21C680GBANNNC Grenzwerte & elektrische Eigenschaften
| Capacitance | 68 pF |
| Capacitance Tolerance | ±2% |
| Rated Voltage (DC) | 50 V |
| Dielectric Class | C0G / NP0 (Class 1, EIA) |
| Temperature Coefficient | 0 ±30 ppm/°C |
| Betriebstemperaturbereich | -55 °C to +125 °C |
| Package / Case Size | 0805 (2012 metric) |
| Package Dimensions | 2.00 mm x 1.25 mm |
| Montageart | Surface Mount (SMD) |
| Termination Finish | Nickel barrier + Tin (Ni/Sn) plating |
| Termination Style | Pad (standard MLCC) |
| Construction | Multilayer Monolithic Ceramic |
| Packaging | Tape & Reel (T/R) |
| MSL-Level | 1 (per JEDEC J-STD-020, not moisture sensitive) |
| RoHS-Status | Compliant |
CL21C680GBANNNC Pin-Konfiguration
| Pin 1 | Terminal 1 — Solder pad — first electrode of the MLCC (anode) |
| Pin 2 | Terminal 2 — Solder pad — second electrode of the MLCC (cathode) |
Typische Anwendungen
CL21C680GBANNNC ist geeignet für 6 Anwendungs: RF VCO Tank Circuit, Precision Analog Filter, ADC Sample-and-Hold Capacitor, Crystal Load Capacitor, Impedance Matching Network, High-Frequency Bypass / Decoupling.
RF VCO Tank Circuit
The Samsung CL21C680GBANNNC fits RF VCO tank circuits because its C0G/NP0 dielectric delivers 0 ±30 ppm/°C capacitance stability and zero DC bias derating — critical for stable oscillator frequency. In a Colpitts or Clapp topology, a 68 pF value with ±2% tolerance sets the resonant frequency in the VHF range; flat capacitance versus voltage means the oscillator's center frequency does not drift with tuning-rail voltage changes. Placed between the varactor and ground return, this 0805 part keeps tank Q high and frequency drift low across the -55 °C to +125 °C span. Recommended companion parts: PIC32MZ1024EFG064T-I/PT MCU for frequency control and Murata GRM2165C1H680GA01D as a second-source tank capacitor.
Empfohlen
Precision Analog Filter
The CL21C680GBANNNC suits active and passive analog filters where capacitance accuracy dictates cutoff frequency precision. A 68 pF ±2% part in an Sallen-Key low-pass or multiple-feedback bandpass topology with 1% resistors gives a worst-case 4% cutoff-frequency error, well within audio and instrumentation filter tolerance. The C0G dielectric eliminates the 30-80% DC-bias capacitance loss seen in X7R, so the filter's response stays flat as supply or signal levels change. Its 50 V rating also supports filter circuits operating from ±15 V analog rails. Recommended companion parts: TI OPA1612 audio op-amp and Analog Devices AD8628 zero-drift amplifier for ultra-precise filter stages.
Empfohlen
ADC Sample-and-Hold Capacitor
For sample-and-hold or charge-redistribution SAR ADC front-ends, the CL21C680GBANNNC's C0G dielectric gives near-zero dielectric absorption (~0.6% versus 2-10% for X7R), which is the dominant source of hold-mode error in successive-approximation ADCs. A 68 pF value works as a hold cap for medium-resolution converters and as a flying capacitor in switched-capacitor gain stages. ±2% tolerance limits gain error to 2%, well within the trimming budget of most precision ADCs. Placed immediately at the ADC input pin with a low-leakage buffer, it preserves sample fidelity. Recommended companion parts: PIC32MZ2048EFM064T-I/MR for data acquisition and Murata GRM2165C1H680GA01D for second-sourcing.
Empfohlen
Crystal Load Capacitor
The CL21C680GBANNNC is a standard crystal load-cap choice for 20-40 MHz fundamental-mode crystals where the load capacitance falls in the 10-30 pF effective range after PCB stray compensation. The ±2% tolerance and C0G stability ensure oscillator startup is consistent across temperature — a critical factor for USB, Ethernet, and CAN PHYs that require tight ppm-level frequency accuracy. Mounted between each crystal pin and ground adjacent to the oscillator cell, its 0805 footprint keeps parasitic lead inductance low. Recommended companion parts: PIC32MZ1024EFG064-I/PT MCU with integrated oscillator and Abracon ABM8G crystal.
Empfohlen
Impedance Matching Network
In RF matching networks between amplifier stages, antennas, or filters, the CL21C680GBANNNC provides a stable 68 pF reactance from DC up to several GHz. C0G/NP0 dielectric keeps the Q factor high (typically >1000 at 1 MHz, >100 at 100 MHz), which means insertion loss remains low and passband shape stays sharp. Its 0805 size minimizes series parasitic inductance compared to smaller 0402 parts at high frequencies, while still fitting compact RF layouts. Used as a series or shunt matching element in L/C Pi or T networks, it enables repeatable 50 Ω impedance transformation. Recommended companion parts: PIC32MZ1024EFH124T-I/TL for digital tuning control and KYOCERA AVX 08055A680GAT2A as second-source.
Empfohlen
High-Frequency Bypass / Decoupling
Although C0G MLCCs cost more than X7R, the CL21C680GBANNNC can serve as a high-frequency bypass cap on noise-sensitive analog or RF pins where any DC-bias-induced capacitance drop would let supply ripple couple into the signal path. Its 68 pF value combined with a 1 nH PCB trace inductance creates a self-resonant frequency near 200 MHz, ideal for bypassing digital switching noise above 100 MHz. C0G stability means the bypass impedance does not vary with rail voltage, preserving PSRR of the downstream amplifier. Recommended companion parts: PIC32MZ1024ECG100T-I/PF MCU and TDK C2012C0G1H680G060AA for second-source.
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Zusammenfassung der empfohlenen Produkte
Technische Referenzdaten für CL21C680GBANNNC – Vergleich, Designhinweise und Compliance-Informationen.
Auswahlhilfe
Vergleich mit Alternativen
| Parameter | Dieses Produkt | CL21C680JBANNNC | CL21C680GBANNND | 08055A680GAT2A | GRM2165C1H680GA01D | CC0805GKNPO9BN680 | C2012C0G1H680G060AA |
|---|---|---|---|---|---|---|---|
| Brand | Samsung Electro-Mechanics | Samsung Electro-Mechanics | Samsung Electro-Mechanics | KYOCERA AVX | Murata | YAGEO | TDK |
| Package | 0805 (2012 metric) | 0805 (2012 metric) - same | 0805 (2012 metric) - same | 0805 (2012 metric) - same | 0805 (2012 metric) - same | 0805 (2012 metric) - same | 0805 (2012 metric) - same |
| Capacitance | 68 pF | 68 pF | 68 pF | 68 pF | 68 pF | 68 pF | 68 pF |
| Capacitance Tolerance | ±2% | ±5% | ±2% | ±2% | ±2% | ±2% | ±2% |
| Rated Voltage (DC) | 50 V | 50 V | 50 V | 50 V | 50 V | 50 V | 50 V |
| Dielectric Class | C0G / NP0 (Class 1) | C0G / NP0 (Class 1) | C0G / NP0 (Class 1) | C0G / NP0 (Class 1) | C0G / NP0 (Class 1) | C0G / NP0 (Class 1) | C0G / NP0 (Class 1) |
| Operating Temperature Range | -55 °C to +125 °C | -55 °C to +125 °C | -55 °C to +125 °C | -55 °C to +125 °C | -55 °C to +125 °C | -55 °C to +125 °C | -55 °C to +125 °C |
| Unit Price (qty 1000) | $0.022 | $0.018 (estimated) | $0.022 (estimated) | $0.025 (estimated) | $0.024 (estimated) | $0.020 (estimated) | $0.025 (estimated) |
Wichtigste Unterscheidungsmerkmale
- Samsung CL-series MLCC quality at commodity pricing (vs. KYOCERA AVX 08055A680GAT2A)
- Tighter ±2% tolerance than the typical ±5% C0G MLCC (vs. CL21C680JBANNNC)
- Industry-standard 0805 footprint maximizes second-source options (vs. GRM1555C1H680JZ01D (0402 Murata))
- RoHS-compliant lead-free Ni/Sn termination (vs. Tin/lead legacy finishes on older EIA Class 1 caps)
Designhinweise
Use the EIA standard 0805 land pattern with 1.20 mm x 0.90 mm solder pads on a 1.27 mm pitch. Place the part close to the active device pin to minimize series inductance — a 1 nH trace + 68 pF self-resonance sits near 200 MHz, above which the cap behaves inductively. Avoid running noisy digital traces under or adjacent to RF capacitors on the opposite PCB layer; use a continuous ground plane on layer 2 directly beneath the 0805 to control return-path impedance and reduce loop area.
C0G MLCCs are insensitive to thermal stress, but lead-free reflow at 260 °C peak for 30-60 s is the standard limit. Avoid prolonged dwell above 250 °C and do not exceed the manufacturer's recommended thermal profile (typically 3 reflow cycles max). For high-vibration or automotive under-hood designs, the Ni-barrier termination plus 0805 mass provides adequate mechanical robustness — but for shock >50G, consider using an underfill or an 0805 with a flexible termination (e.g. AVX Flexiterm series).
Do NOT assume an 0805 '68 pF' X7R is equivalent to a C0G part at the same value. X7R loses 30-80% of nominal capacitance under DC bias, has ±15% temperature drift, and exhibits 2-10% dielectric absorption. C0G/NP0 (Class 1) parts like the CL21C680GBANNNC are flat versus bias and temperature, which is essential for filters, oscillators, and ADC sample caps. Verify the dielectric code (C0G / NP0) and tolerance letter ('G' = ±2%, 'J' = ±5%) on every PO to avoid substitution errors in precision circuits.
At high frequency, an 0805 C0G cap behaves like a series RLC — with 68 pF capacitance, ~1 nH ESL, and ESR around 0.1 ohm. The self-resonant frequency is approximately 195 MHz. Use this 0805 part for bypass and coupling up to about 100 MHz; above that, a smaller 0402 part or a 3-terminal feedthrough cap gives lower ESL. For differential signaling (USB 2.0, HDMI), place one cap on each line close to the connector, both referenced to the same low-impedance ground via short, direct vias.
Compliance-Informationen
Samsung Electro-Mechanics CL-series MLCCs are RoHS and REACH compliant per the manufacturer product page. Lead-free Ni/Sn termination meets the EU RoHS directive exemption list. AEC-Q100 qualification is not applicable to commodity MLCCs — consult Samsung's automotive-grade CLL-series for AEC-Q200 qualified equivalents.
