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TDK EPCOS B43641A9687M057 B43641 Series Ultra Compact Snap-in Capacitor, 680µF, 400VDC
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Overview: The TDK EPCOS B43641A9687M057 is an ultra-compact, long-life aluminum electrolytic capacitor from the B43641 series, designed for high-density power electronics. With a 680µF capacitance and a 400VDC voltage rating, it delivers an extremely high CV product in a minimal footprint. Featuring snap-in terminals with a PET insulation sleeve, this capacitor is engineered for high reliability, high ripple current capability, and operation up to 105°C, making it ideal for power supplies, frequency converters, and UPS systems where space and performance are critical.
Key Features:
- Ultra-Compact Design: Extremely high CV product for space-constrained applications
- Long-Life Grade: >2000 hours useful life at 105°C with rated ripple current
- High Ripple Current Capability: Optimized for demanding power circuits
- Snap-in Terminals (4.5mm short): Secure PCB mounting with PET insulation sleeve
- High-Temperature Operation: Rated for up to 105°C
- RoHS-compatible and passes needle flame test (IEC 60695-11-5)
- Designed for power supplies, frequency converters, UPS, and solar inverters
| Product ID / Ordering Code | B43641A9687M057 |
| Series | B43641 (Ultra Compact, 105°C) |
| Capacitance (CR) | 680 µF |
| Rated Voltage (VR) | 400 VDC |
| Capacitance Tolerance | ±20% (M) |
| Case Dimensions (d x l) | 30 mm x 45 mm |
| Typical ESR @ 100 Hz, 20°C | 150 mΩ |
| Typical ESR @ 300 Hz, 60°C | 50 mΩ |
| Max. Impedance Z @ 10 kHz, 20°C | 220 mΩ |
| Max. Ripple Current IAC,max @ 100 Hz, 85°C | 4.52 A |
| Rated Ripple Current IAC,R @ 100 Hz, 105°C | 2.26 A |
| Useful Life @ 105°C, VR, IAC,R | > 2000 h |
| Operating Temperature Range | -40°C to +105°C (IEC 25/105/56) |
| Terminal Style | Snap-in, short terminals (4.5 mm) |
| Insulation | PET sleeve |
| Dissipation Factor (tan δ @ 120 Hz, 20°C) | ≤ 0.20 |
| Self-Inductance (ESL) | Approx. 20 nH |
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