C1206C684K3RACTU Kemet Capacitor (Other) In Stock
C1206C684K3RACTU is a Kemet 0.68 µF Class II X7R MLCC in an 1206 SMD package rated at 25 V with ±10% capacitance tolerance. This temperature-stable multilayer ceramic capacitor is suitable for decoupling, bypass, and filtering in automotive and industrial electronics.
- Manufacturer
- Kemet
- Package
- Other
- Pin Count
- 2
- Lifecycle
- ACTIVE
- Datasheet
- C1206C684K3RACTU Datasheet PDF
- Category
- Capacitor
- Price
- From $0.0930(MOQ 1)
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of C1206C684K3RACTU?
- 0.68 µF capacitance in compact 1206 SMD package for high-density PCB layouts
- X7R Class II dielectric providing stable capacitance from -55°C to +125°C
- 25 V voltage rating suitable for 5 V and 12 V rail decoupling applications
- ±10% tolerance meeting standard decoupling and filtering specifications
- AEC-Q200 qualified construction for automotive-grade reliability
What is C1206C684K3RACTU used for?
C1206C684K3RACTU is used in power supply decoupling networks, EMI filter stages, and AC coupling paths in automotive ECUs, industrial motor drives, and communication equipment. Its X7R dielectric maintains capacitance within ±15% across the -55°C to +125°C operating range, ensuring stable filter performance over wide temperature swings. The 1206 package size allows hand soldering and automated reflow assembly for prototyping and production.
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
Where can I find the C1206C684K3RACTU datasheet?
C1206C684K3RACTU Datasheet DownloadOfficial datasheet from Kemet
What are equivalent replacements for C1206C684K3RACTU?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
How does the X7R dielectric of C1206C684K3RACTU perform across temperature in automotive systems?
The C1206C684K3RACTU uses an X7R Class II dielectric rated from -55°C to +125°C with a maximum capacitance change of ±15%. This stability is sufficient for automotive ECU decoupling and filter circuits, where temperature swings from -40°C cold crank conditions to +125°C underhood operation are common, ensuring consistent bypass performance without significant capacitance loss.
What voltage rating does C1206C684K3RACTU carry and which power rail levels does it support?
The C1206C684K3RACTU is rated at 25 V, making it suitable for decoupling 3.3 V, 5 V, and 12 V supply rails with substantial voltage derating margin. Applying a 2:1 derating rule keeps working voltage at or below 12.5 V, which is appropriate for most digital logic and analog front-end supply decoupling in industrial and automotive electronics.
How does C1206C684K3RACTU compare to a 0805 package alternative when space and current ripple are considered?
The 1206 package of C1206C684K3RACTU has a larger body of 3.2 mm × 1.6 mm compared to an 0805's 2.0 mm × 1.25 mm, offering lower equivalent series resistance (ESR) and higher rated power dissipation for ripple current handling in switching power supply output filters. When PCB space is not a constraint, the 1206 package provides improved thermal and electrical performance over smaller 0805 alternatives at 0.68 µF.
In which filtering applications does the 0.68 µF value of C1206C684K3RACTU deliver best performance?
A 0.68 µF capacitor is effective for mid-frequency decoupling between 100 kHz and 10 MHz when used alongside a 100 nF capacitor in a two-capacitor bypass network. In LC filter stages, 0.68 µF paired with a 10 µH inductor creates a low-pass corner frequency near 60 kHz, useful for attenuating switching noise from 100 kHz to 1 MHz DC-DC converters in sensor power supplies.
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Why Buy from FindMyChip
About Kemet
Kemet is a leading electronic component manufacturer. FindMyChip sources Kemet ICs directly from authorized China distributors, offering competitive pricing and reliable stock.
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $0.5500 | $0.55 |
| 10+ | $0.1900 | $1.90 |
| 25+ | $0.1300 | $3.25 |
| 5000+ | $0.1020 | $510.00 |
| 10000+ | $0.0970 | $970.00 |
| 25000+ | $0.0930 | $2325.00 |
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