ESMQ401VSN331MR30S United Chemi-Con Connector (Capacitor, Polarized Radial Diameter) In Stock
United Chemi-Con ESMQ401VSN331MR30S is an aluminum electrolytic capacitor rated 330 µF at 400 V with ±20% tolerance in a 30 mm snap-in through-hole package. RoHS-compliant with low leakage current of 1.09 mA. Available worldwide with fast shipping.
- Manufacturer
- United Chemi-Con
- Package
- Capacitor, Polarized Radial Diameter
- Pin Count
- 2
- Lifecycle
- ACTIVE
- Datasheet
- ESMQ401VSN331MR30S Datasheet PDF
- Category
- Connector
- Temp Range
- -25.0°C to 85.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 330 µF at 400 V high-voltage rating supports demanding power supply bulk storage in industrial and inverter designs
- 30 mm snap-in radial package provides robust mechanical retention on PCB for high-vibration environments
- Low leakage current of 1.09 mA and RoHS-compliant construction meets modern environmental and reliability standards
Applications
The ESMQ401VSN331MR30S is used as bulk energy storage in high-voltage power supplies, motor drive inverters, and UPS systems where 400 V bus voltages and 330 µF capacitance maintain stable DC rails under dynamic load conditions. Its 30 mm snap-in format suits industrial power electronics boards with high mechanical stress requirements.
Specifications
| Pbfree Code | Yes |
| Reach Compliance Code | Compliant |
| YTEOL | 6 |
| Capacitance | 330 µF |
| Capacitor Type | ALUMINUM ELECTROLYTIC CAPACITOR |
| Diameter | 30mm |
| Dielectric Material | ALUMINUM (WET) |
| JESD-609 Code | e3 |
| Leakage Current | 1.09mA |
| Mounting Feature | THROUGH HOLE MOUNT |
| Negative Tolerance | 20% |
| Package Shape | CYLINDRICAL PACKAGE |
| Package Style | Snap-in |
| Polarity | POLARIZED |
| Positive Tolerance | 20% |
| Rated (DC) Voltage (URdc) | 400V |
| Ripple Current | 1900mA |
| Surface Mount | NO |
| Tan Delta | 0.15 |
| Terminal Finish | Matte Tin (Sn) |
| Terminal Pitch | 10mm |
| Terminal Shape | SNAP-IN |
| Package | Capacitor, Polarized Radial Diameter |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| ECCN | EAR99 |
| HTS Code | 8532.22.00.40 |
| Country of Origin | Malaysia |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What voltage and capacitance specifications make ESMQ401VSN331MR30S suitable for motor drive inverters?
The ESMQ401VSN331MR30S is rated at 330 µF and 400 V with ±20% tolerance, providing sufficient bulk capacitance to buffer DC bus fluctuations in 3-phase motor drive inverters operating from 230 V or 400 V AC mains. Its 1.09 mA leakage current stays low enough not to affect standby power budgets in always-on industrial drives.
How does the 30 mm snap-in package of ESMQ401VSN331MR30S help in power electronics PCB assembly?
The 30 mm diameter snap-in radial package clicks into PCB mounting holes and locks mechanically before soldering, holding the capacitor in position on automated assembly lines without extra fixturing. This through-hole snap-in retention is essential for large capacitors in industrial inverters subjected to vibration and thermal cycling between -40 °C and +85 °C.
When should a designer choose ESMQ401VSN331MR30S over a lower-voltage 330 µF capacitor for a UPS design?
A 400 V rated capacitor like ESMQ401VSN331MR30S is required when the rectified DC bus voltage exceeds 350 V, which is common in UPS systems on 230 V AC mains where the peak voltage reaches approximately 325 V. Using a lower-rated component risks dielectric breakdown and catastrophic failure, whereas the 400 V rating provides a safe derating margin of at least 19% above the nominal peak.
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Why Buy from FindMyChip
About United Chemi-Con
United Chemi-Con is a leading electronic component manufacturer. FindMyChip sources United Chemi-Con ICs directly from authorized China distributors, offering competitive pricing and reliable stock.
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