ECW-U2122V16 Panasonic Capacitor (Other) In Stock
Panasonic ECW-U2122V16 is a stacked metallized PEN film capacitor rated at 250 V with a 1200 pF capacitance, designed for DC blocking in xDSL line interface circuits within a compact 4.8 x 3.3 mm mold-less body. Its PEN film dielectric delivers stable high-frequency performance and low loss for telecom signal coupling applications.
- Manufacturer
- Panasonic
- Package
- Other
- Pin Count
- 2
- Lifecycle
- ACTIVE
- Datasheet
- ECW-U2122V16 Datasheet PDF
- Category
- Capacitor
- Price
- From $0.5648(MOQ 50)
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of ECW-U2122V16?
- Stacked metallized PEN (polyethylene naphthalate) film dielectric provides superior heat resistance and stable capacitance compared to standard PET film capacitors
- 250 V voltage rating with 1200 pF capacitance suits DC blocking and AC coupling in high-voltage xDSL and telecom line interface circuits
- Compact 4.8 x 3.3 mm mold-less construction minimizes PCB footprint in space-constrained DSL modem and DSLAM line card designs
- Low-loss PEN film dielectric maintains stable capacitance and dissipation factor across the high-frequency DSL signal band from 25 kHz to 30 MHz
What is ECW-U2122V16 used for?
The ECW-U2122V16 is engineered for DC blocking and AC coupling in xDSL line interface circuits, including ADSL, VDSL, and VDSL2 central office line cards where 250 V isolation and low-loss signal coupling across 25 kHz to 30 MHz are required. Its stable PEN film dielectric and compact 4.8 x 3.3 mm body also make it suitable for high-voltage coupling networks in industrial signal conditioning and telecom subscriber equipment.
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
Where can I find the ECW-U2122V16 datasheet?
ECW-U2122V16 Datasheet DownloadOfficial datasheet from Panasonic
What are equivalent replacements for ECW-U2122V16?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What dielectric material does the ECW-U2122V16 use and why is PEN film preferred for xDSL applications?
The ECW-U2122V16 uses a stacked metallized PEN (polyethylene naphthalate) film dielectric, which offers higher thermal stability and lower dielectric loss than standard PET film. In xDSL applications spanning 25 kHz to 30 MHz, PEN film maintains tighter capacitance tolerance and lower dissipation factor across temperature extremes, ensuring clean AC signal coupling with minimal distortion on the subscriber line.
What is the capacitance and voltage rating of the ECW-U2122V16 and which circuit functions does it serve?
The ECW-U2122V16 provides 1200 pF of capacitance at a 250 V rated voltage, designed specifically for DC blocking in xDSL line interface circuits. The 250 V rating safely isolates the POTS (plain old telephone service) DC voltage present on subscriber lines, while 1200 pF passes DSL AC signals above a few kilohertz with low insertion loss into the DSLAM line card's receive path.
How does the compact 4.8 x 3.3 mm body of the ECW-U2122V16 benefit high-density telecom line card layouts?
At 4.8 x 3.3 mm, the ECW-U2122V16's mold-less body occupies less than 16 mm² of PCB area per capacitor, allowing DSL line cards with 48 or 96 ports to fit DC-blocking capacitors without exceeding the board's space budget. This compact footprint compared to traditional radial-lead film capacitors reduces the line card area per port by approximately 30 to 50%, enabling higher port densities in DSLAM chassis.
When should an engineer prefer ECW-U2122V16 over a ceramic capacitor for DC blocking in xDSL circuits?
Film capacitors like the ECW-U2122V16 are preferred over ceramic MLCCs for xDSL DC blocking because they exhibit no piezoelectric microphonic noise and have negligible DC bias capacitance loss at 250 V. High-voltage class 2 MLCCs at 250 V and 1200 pF can lose 30 to 50% of their rated capacitance under DC bias, whereas the ECW-U2122V16 PEN film dielectric maintains stable 1200 pF across the full 250 V operating range.
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About Panasonic
Panasonic is a leading electronic component manufacturer. FindMyChip sources Panasonic ICs directly from authorized China distributors, offering competitive pricing and reliable stock.
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 50+ | $0.7500 | $37.50 |
| 100+ | $0.6899 | $68.99 |
| 500+ | $0.5883 | $294.17 |
| 12000+ | $0.5707 | $6848.28 |
| 24000+ | $0.5677 | $13626.00 |
| 48000+ | $0.5648 | $27110.88 |
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