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
- Price
- From $5.1200(MOQ 50)
- Temp Range
- -25.0°C to 85.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of ESMQ401VSN331MR30S?
- 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
What is ESMQ401VSN331MR30S used for?
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.
What are the specifications of ESMQ401VSN331MR30S?
| 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 |
Where can I find the ESMQ401VSN331MR30S datasheet?
ESMQ401VSN331MR30S Datasheet DownloadOfficial datasheet from United Chemi-Con
What are equivalent replacements for ESMQ401VSN331MR30S?
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.
Related Guides
C0402C103K3RACTU Selection Guide: Choosing a 10 nF 0402 MLCC
Select C0402C103K3RACTU by voltage margin, X7R behavior, tolerance, 0402 assembly risk, and qualified alternatives.
Aug 4, 2026
STM32H753VIT6 MCU Selection Guide: Memory, Package, Connectivity, and Security
Choose STM32H753VIT6 by evaluating memory architecture, LQFP-100 pin fit, connectivity, security, power, and sourcing tradeoffs.
Aug 4, 2026
STM32H753VIT6 High-Performance MCU Design Guide
Practical STM32H753VIT6 design guidance for power, clocks, memory, DMA, PCB layout, bring-up, and production recovery.
Aug 3, 2026
STM32H753ZIT6 Selection Guide for High-Performance Embedded Systems
Select the STM32H753ZIT6 by evaluating compute, memory, LQFP144 pinout, power, interfaces, security, and sourcing requirements.
Aug 3, 2026
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.
More from United Chemi-Con
KTS101B475M43E0T00
Capacitor Chip Non-polarised
Capacitor
KTS500B475M43N0T00
Capacitor Chip Non-polarised
Capacitor
EMVY500ADA470MF80G
Capacitor Al Electrolytic
Capacitor Polarised
EMZJ160ADA470ME61G
Capacitor Al Electrolytic
Capacitor Polarised
EMHB350ADA101MHA0G
Capacitor Al Electrolytic
Capacitor Polarised
EKY-500ELL222MMP1S
Capacitor, Polarized Radial Diameter
Capacitor Polarised
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 50+ | $7.2600 | $363.00 |
| 100+ | $6.1700 | $617.00 |
| 150+ | $5.7500 | $862.50 |
| 200+ | $5.6400 | $1128.00 |
| 1000+ | $5.5728 | $5572.79 |
| 2200+ | $5.1200 | $11264.00 |
In Stock · 24h Response · Worldwide Shipping
Response within 24 hours · Worldwide shipping
“Response time is incredible — usually under 4 hours. They understand that production lines can't wait.”
You May Also Like
10214-6212PC
3M
Connector
1778573
Phoenix Contact
Connector
5227222-3
TE Connectivity
Connector
S4B-XH-SM4-TB(LF)(SN)
JST (JAPAN SOLDERLESS TERMINALS)
Connector
185226-2
TE Connectivity
Connector
0533980571
Molex
Connector
0360-0-15-01-34-27-10-0
Mill-Max
Connector
7850-0006PR
3M
Connector
AVB 1,5/2/12
BLOCK
Connector
CLE-110-01-G-DV-TR
SAMTEC
Connector
CLE-110-01-G-DV-A-TR
SAMTEC
Connector
CLE-110-01-G-DV-A
SAMTEC
Connector
TSM-103-01-TM-DV
SAMTEC
Connector
TSM-103-01-T-SH
SAMTEC
Connector
TSM-103-01-T-DV
SAMTEC
Connector
N3764-5002RB
3M
Connector
N3627-6002RB
3M
Connector
N3627-5002RB
3M
Connector
N3440-6002RB
3M
Connector
929715-03-36-I
3M
Connector
929667-02-36-I
3M
Connector
929665-04-36-I
3M
Connector
929665-02-36-I
3M
Connector
929647-04-36-I
3M
Connector