B32774D1505K EPCOS Capacitor (Other) In Stock
The B32774D1505K is a 5 µF, 1300 V film capacitor by EPCOS with C0G temperature characteristic and 10% tolerance, designed for high-voltage filtering, snubber networks, and power conversion circuits requiring stable capacitance across wide temperature ranges.
- Manufacturer
- EPCOS
- Package
- Other
- Pin Count
- 2
- Lifecycle
- ACTIVE
- Datasheet
- B32774D1505K Datasheet PDF
- Category
- Capacitor
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 5 µF capacitance at 1300 V DC rating for high-voltage power electronics and snubber applications
- C0G temperature characteristic ensuring stable capacitance with minimal variation across the full operating temperature range
- Film capacitor construction providing low self-inductance, low ESR, and high ripple current capability
- 10% capacitance tolerance suitable for energy storage and filter applications in power conversion stages
Applications
The B32774D1505K is suited for high-voltage DC link filtering, IGBT snubber networks, and resonant converter circuits in industrial power supplies and motor drives operating at voltages up to 1300 V. Its C0G characteristic and film dielectric ensure consistent 5 µF capacitance in solar inverters, UPS systems, and railway traction converters where thermal cycling would cause ceramic capacitor drift. The low-loss film construction also supports AC filtering and power factor correction stages in medium-voltage equipment.
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
Why is the B32774D1505K preferred over ceramic capacitors for 1300 V snubber network designs?
At 1300 V, ceramic capacitors in standard X7R or Y5V grades experience significant capacitance reduction due to DC bias, often losing 50% or more of rated 5 µF at high voltage. The B32774D1505K film capacitor maintains its full 5 µF with C0G stability, no DC bias derating, and low ESR under high dV/dt switching conditions, making it the reliable choice for IGBT and MOSFET snubber circuits in industrial motor drives and solar inverters.
How does the C0G temperature characteristic of the B32774D1505K benefit high-temperature power electronics environments?
C0G (also called NP0) dielectric delivers near-zero temperature coefficient, meaning the 5 µF capacitance of the B32774D1505K remains stable from -55°C to +125°C with less than 30 ppm/°C drift. This stability is critical for resonant converter timing circuits and filter stages in industrial equipment where ambient temperatures fluctuate across wide ranges, preventing frequency drift or filtering performance degradation that would occur with temperature-sensitive capacitor types.
For a 1300 V DC bus filter stage, how does a single 5 µF B32774D1505K compare to paralleling multiple lower-voltage film capacitors?
Using a single 1300 V rated B32774D1505K eliminates voltage sharing resistors and the balancing complexity required when stacking lower-voltage capacitors in series. A single 5 µF unit also reduces PCB area, minimizes parasitic inductance from interconnects, and simplifies the filter BOM. For energy storage at 1300 V, one B32774D1505K stores 4.225 mJ (E = 0.5 x C x V^2), equivalent to stacking multiple lower-voltage units at greater assembly cost.
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