16CE680AX - 680uF 16V SMD Aluminum Electrolytic Capacitor | SUNCON
Teilenummer: 16CE680AX ✓ Aktiv| Menge | Stückpreis | Gesamt |
|---|---|---|
| 1 | $0.42 | $0,42 |
| 10 | $0.38 | $3,80 |
| 100 | $0.31 | $31,00 |
| 500 | $0.26 | $130,00 |
| 1.000 | $0.21 | $210,00 |
16CE680AX Übersicht
An aluminum electrolytic capacitor is a polarized passive component that uses an etched aluminum foil anode, a conductive electrolyte, and an oxide dielectric film to store charge at high volumetric efficiency. Aluminum electrolytic capacitors sit within the broader taxonomy of capacitors -> passive components -> electronic components, and SMD (surface-mount device) variants such as the CE-AX series replace through-hole parts on high-density printed circuit boards. They offer very high capacitance per unit cost but have higher equivalent series resistance (ESR) and shorter operational life than ceramic or film capacitors.
Key performance characteristics include a category operating temperature range of -55 °C to +105 °C, an endurance rating of 2000 hours at +105 °C for case diameters phi 8 mm through phi 16 mm (and 1000 hours for phi 4 to phi 6.3 mm and phi 10x7.7 mm case sizes), and a stable post-endurance capacitance shift within ±25% of the initial measured value. The capacitor integrates a pressure relief vent for case diameters greater than phi 8 mm, providing safety against catastrophic failure under severe overvoltage or reverse-bias conditions.
Typical applications include bulk decoupling on DC-DC converter input rails, output smoothing for low-frequency switching power supplies, energy-storage reservoirs in audio amplifiers, and bypass capacitance on industrial control boards. The CE-AX SMD footprint supports high-volume pick-and-place assembly, making the part attractive for cost-sensitive consumer electronics where high capacitance density in a small case is required.
When designing with the 16CE680AX, observe polarity strictly to avoid reverse-bias failure and ensure reflow peak temperature does not exceed the datasheet-specified profile. For long-life applications above 1 A of ripple current, derate temperature or consider paralleling multiple units to reduce thermal stress and extend operational life.
This page synthesizes distributor pricing for the SUNCON 16CE680AX, drop-in aluminum electrolytic alternatives from same-brand CE-AX family members, and practical design notes not aggregated on any single distributor or manufacturer page.
Drop-in-Alternativen für 16CE680AX – gleiches Gehäuse, Pin-kompatibel. Bauteile mit anderem Gehäuse, die eine PCB-Überarbeitung erfordern, sind ausgeschlossen.
Schnellvergleichstool – Wählen Sie Alternativbauteile für den Direktvergleich:
25CE680AX
✅ Drop-In ⚠️ Spezifikationen ungeprüft📋 Referenzalternative (nicht im Katalog)
35CE680AX
✅ Drop-In ⚠️ Spezifikationen ungeprüft📋 Referenzalternative (nicht im Katalog)
10CE680AX
✅ Drop-In ⚠️ Spezifikationen ungeprüft📋 Referenzalternative (nicht im Katalog)
16CE680BX
✅ Drop-In ⚠️ Spezifikationen ungeprüft📋 Referenzalternative (nicht im Katalog)
EEE-FK1C681P
✅ Drop-In📋 Referenzalternative (nicht im Katalog)
UWT1C681MCL1GB
✅ Drop-In📋 Referenzalternative (nicht im Katalog)
16CE680AX Grenzwerte & elektrische Eigenschaften
| Capacitance | 680 uF |
| Capacitance Tolerance | ±20% |
| Rated Working Voltage (WVDC) | 16 V DC |
| Leakage Current (max) | 109 uA |
| Montagestil | Surface Mount (SMD) |
| Polarization | Polarized |
| Series | CE-AX |
| Dielectric Type | Aluminum Electrolytic |
| Category Temperature Range | -55 °C to +105 °C |
| Endurance (phi 8 to phi 16 mm) | 2000 hours at +105 °C |
| Endurance (phi 4 to phi 6.3 mm and phi 10x7.7 mm) | 1000 hours at +105 °C |
| Capacitance Change After Endurance | Within ±25% of initial value |
| Pressure Relief Vent | Provided for case diameter > phi 8 mm |
| RoHS Compliance | Compliant |
| Betriebstemperaturbereich | -55 °C to +105 °C |
16CE680AX Pin-Konfiguration
| Pin 1 | + (Anode) — Positive terminal; stripe on case indicates the negative (cathode) terminal. Observe polarity during placement. |
| Pin 2 | - (Cathode) — Negative terminal; identified by the stripe marker on the capacitor case body. |
Typische Anwendungen
16CE680AX ist geeignet für 7 Anwendungs: DC-DC Converter Input Bulk Capacitor, Audio Amplifier Power Supply Smoothing, Industrial Control Board Bypass Capacitor, IoT Sensor Node Power Decoupling, LED Lighting Driver Output Smoothing, Automotive Infotainment Power Supply Filtering, Networking Switch Auxiliary Power Hold-Up.
DC-DC Converter Input Bulk Capacitor
The SUNCON 16CE680AX is well suited as a bulk input capacitor on the high-voltage rail of non-isolated DC-DC converters (buck, boost, buck-boost) and isolated topologies where the input rail sits near 12 V. Its 680 uF capacitance and 16 V working voltage provide ample energy storage to suppress input-voltage ripple during load transients, while the -55 °C to +105 °C operating range covers industrial and automotive under-hood environments. Placed between the rectifier output and the switching converter input pin, the part absorbs inrush current and lowers input ripple amplitude; the leakage budget of 109 uA remains negligible compared to typical converter quiescent current. The SMD CE-AX form factor supports high-density PCB layouts and reflow-compatible assembly.
Empfohlen
Audio Amplifier Power Supply Smoothing
Class-AB and Class-D audio amplifiers require low-impedance supply rails to deliver peak current into loudspeaker loads without supply droop. The SUNCON 16CE680AX provides 680 uF of bulk capacitance at 16 V, which is appropriate for amplifier rails powered from a regulated 12 V supply or directly from a 12 V battery. Placed at the amplifier V+ pin, the part smooths rectified supply ripple and provides instantaneous charge reserve during music peaks, lowering total harmonic distortion by preventing rail collapse; its aluminum-electrolytic construction accepts the large ripple currents typical in amplifier output stages. The polarized SMD case supports automated assembly in consumer audio products.
Empfohlen
Industrial Control Board Bypass Capacitor
Industrial PLC and motor-control boards use 12 V or 15 V intermediate rails that power relays, optocouplers, and small signal-conditioning circuits. The SUNCON 16CE680AX delivers 680 uF at 16 V, providing bulk energy storage for relay coil switching transients and motor back-EMF events. The 105 °C upper operating temperature and 2000-hour endurance rating suit industrial control-box thermal environments, and the polarized SMD footprint is compatible with standard reflow profiles used on mixed-technology industrial PCBs. Place the part near relay-driver supply pins to suppress switching transients and improve EMI margins.
Empfohlen
IoT Sensor Node Power Decoupling
Battery-powered IoT sensor nodes that operate from a regulated 3.3 V or 5 V rail benefit from a bulk hold-up capacitor on the rail feeding the wireless transceiver during transmit bursts. The SUNCON 16CE680AX provides 680 uF at 16 V to absorb the 200 to 500 mA transmit current spikes of sub-GHz or BLE radios, preventing rail droop and brown-out resets. The polarized SMD CE-AX case is compact enough for wearable and smart-home sensor form factors, and the 105 °C operating range covers outdoor enclosures in direct sunlight. Pair the 16CE680AX with a smaller ceramic decoupling capacitor to cover both bulk and high-frequency transient demands.
Empfohlen
LED Lighting Driver Output Smoothing
Constant-current LED drivers for architectural and automotive lighting require a low-impedance output capacitor to smooth PWM-modulated current and reduce audible flicker. The SUNCON 16CE680AX, with its 680 uF / 16 V rating, fits 12 V LED-driver output stages driving multiple high-brightness LEDs in series-parallel strings. The aluminum-electrolytic construction handles the continuous ripple current imposed by PWM dimming at frequencies up to several kHz. The SMD CE-AX case allows assembly on aluminum-core LED MCBs used in downlight and strip-light products, while the 105 °C rating tolerates the elevated ambient of enclosed luminaires.
Empfohlen
Automotive Infotainment Power Supply Filtering
Automotive infotainment head units and telematics control units operate from a 12 V battery rail with significant transient noise from load-dump, cranking, and accessory switching events. The SUNCON 16CE680AX provides 680 uF of bulk capacitance at 16 V, suitable for post-regulation filtering of the 12 V supply feeding audio DSPs, displays, and connectivity modules. The 105 °C operating range handles the elevated under-dash thermal environment, and the CE-AX SMD construction supports automated assembly. Place the part downstream of any pre-regulation stage to attenuate residual supply ripple before it reaches noise-sensitive analog and RF circuits.
Empfohlen
Networking Switch Auxiliary Power Hold-Up
Small-form networking switches and PoE-powered devices use a 12 V auxiliary rail derived from the main PSU; the SUNCON 16CE680AX provides bulk hold-up capacitance to ride through brief input-voltage dips during AC mains brownouts. The 680 uF / 16 V rating fits the auxiliary rail voltage, and the aluminum-electrolytic construction tolerates the steady-state ripple current of downstream switching regulators. The SMD CE-AX footprint enables high-density board layouts typical in compact switches, and the 105 °C rating covers the thermal rise inside enclosed networking enclosures.
Empfohlen
Zusammenfassung der empfohlenen Produkte
Technische Referenzdaten für 16CE680AX – Vergleich, Designhinweise und Compliance-Informationen.
Auswahlhilfe
Vergleich mit Alternativen
| Parameter | Dieses Produkt | 25CE680AX | 35CE680AX | 10CE680AX | 16CE680BX | EEE-FK1C681P | UWT1C681MCL1GB |
|---|---|---|---|---|---|---|---|
| Brand | SUNCON | SUNCON | SUNCON | SUNCON | SUNCON | Panasonic | Nichicon |
| Package | SMD CE-AX | SMD CE-AX (same) | SMD CE-AX (same) | SMD CE-AX (same) | SMD CE-BX (same footprint family) | SMD Aluminum Electrolytic (phi 10 mm) - verify footprint | SMD Aluminum Electrolytic (phi 10 mm) - verify footprint |
| Capacitance | 680 uF | 680 uF | 680 uF | 680 uF | 680 uF | 680 uF | 680 uF |
| Capacitance Tolerance | ±20% | ±20% | ±20% | ±20% | ±20% | ±20% | ±20% |
| Rated Voltage | 16 V DC | 25 V DC | 35 V DC | 10 V DC | 16 V DC | 16 V DC | 16 V DC |
| Operating Temperature Range | -55 °C to +105 °C | -55 °C to +105 °C | -55 °C to +105 °C | -55 °C to +105 °C | -55 °C to +105 °C | -55 °C to +105 °C | -55 °C to +105 °C |
| Endurance at +105 °C | 2000 hours (phi 8-16 mm) | 2000 hours | 2000 hours | 2000 hours | Longer endurance (BX series) | 5000 hours (FK series) | 1000 hours (UWT series) |
| RoHS Compliance | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
Wichtigste Unterscheidungsmerkmale
- Wide operating temperature range (vs. UWT1C681MCL1GB (Nichicon))
- Standardized CE-AX case geometry across SUNCON voltage ratings (vs. EEE-FK1C681P (Panasonic))
- Pressure relief vent on larger cases (vs. EEE-FK1C681P (Panasonic))
Designhinweise
The 16CE680AX is a polarized aluminum electrolytic capacitor; reverse-bias will cause dielectric breakdown, rapid heating, and possible venting. Always verify the stripe-marked cathode aligns with the lower-voltage potential on the PCB. Surface-mount CE-AX parts have a single polarity stripe on the top of the can, which must be matched to the silkscreen before reflow.
Estimated: at maximum ripple current (assume 500 mA rms at 100 kHz, ESR ~ 90 milliohm per the SUNCON 16CE680AX 680 microohm-implied value), self-heating is approximately I^2 x ESR = 0.5^2 x 0.09 = 22.5 mW. At 105 °C ambient with the standard SMD thermal pad, junction temperature rise is negligible; however, mounting the part near high-power dissipators reduces lifetime. Derate by 1.25 x voltage or 10 °C for each 1000-hour endurance target above the rated 2000 hours.
For the 16CE680AX SMD case, the land pattern must provide symmetric copper pads sized per the SUNCON CE-AX datasheet recommendation, typically 4.0 mm x 2.5 mm per pad with a 1.0 mm gap. Ensure the negative-pad copper plane connects to the system ground with a low-inductance path, and add thermal vias under the pad to improve heat extraction. Avoid placing the part directly above or below switching-node copper pours to minimize coupled noise pickup.
When the 16CE680AX is used as a DC-DC converter bulk input capacitor, place it within 5 mm of the switching FET source pin to minimize parasitic loop inductance. Pair the 680 uF aluminum electrolytic with a 1 to 10 uF X7R ceramic capacitor to attenuate high-frequency switching ripple above 500 kHz; the aluminum electrolytic alone cannot filter MHz-range noise due to ESL.
Compliance-Informationen
RoHS compliant per DigChip part listing. Aluminum electrolytic capacitors are passive components and not subject to AEC-Q100 semiconductor qualification; for automotive applications requiring higher reliability, select automotive-grade parts explicitly qualified to AEC-Q200.
