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HomeProductsCapacitorsAluminum Electrolytic CapacitorsUUE1H221MNS1MS
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UUE1H221MNS1MS - Nichicon

Manufacturer Part Number
UUE1H221MNS1MS
Manufacturer
Nichicon
Allelco Part Number
98D-UUE1H221MNS1MS
Warranty
1 Year Allelco Warranty - Find out more
Stock Status:
37,260 pcs available, New & Original
Parts Description
CAP ALUM 220UF 20% 50V SMD
Package
Radial, Can - SMD
Data sheet
UUE1H221MNS1MS.pdf

HTML Datasheet

UUE Series.pdf
RoHs Status
ROHS3 Compliant
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Our certification
In stock: 37260
  • Unit Price: $0.545
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Quantity Unit Price Ext. Price
1+ $0.545 $0.55
200+ $0.212 $42.40
500+ $0.204 $102.00
1000+ $0.20 $200.00
The above prices does not include taxes and freight rates, which will be calculated on the order pages.

Specifications

UUE1H221MNS1MS Tech Specifications
Nichicon - UUE1H221MNS1MS technical specifications, attributes, parameters and parts with similar specifications to Nichicon - UUE1H221MNS1MS

Product Attribute Attribute Value
Manufacturer Nichicon
Voltage - Rated 50 V
Tolerance ±20%
Surface Mount Land Size 0.673" L x 0.673" W (17.10mm x 17.10mm)
Size / Dimension 0.630" Dia (16.00mm)
Series UUE
Ripple Current @ Low Frequency 569.5 mA @ 120 Hz
Ripple Current @ High Frequency 850 mA @ 100 kHz
Ratings -
Polarization Polar
Product Attribute Attribute Value
Package / Case Radial, Can - SMD
Package Tape & Reel (TR)
Operating Temperature -55°C ~ 125°C
Mounting Type Surface Mount
Lifetime @ Temp. 5000 Hrs @ 125°C
Lead Spacing -
Height - Seated (Max) 0.689" (17.50mm)
ESR (Equivalent Series Resistance) -
Capacitance 220 µF
Applications Automotive

Environmental & Export Classifications

ATTRIBUTE DESCRIPTION
RoHs Status ROHS3 Compliant
Moisture Sensitivity Level (MSL) 1 (Unlimited)
REACH Status REACH Unaffected
ECCN EAR99
HTSUS 8532.22.0020

Frequently Asked Questions(FAQ)

What thermal derating should be applied to the UUE1H221MNS1MS capacitor when operating above 85°C in automotive applications?
The UUE1H221MNS1MS is rated for 5000 hours at 125°C, establishing its thermal baseline. Aluminum electrolytic capacitors exhibit accelerated degradation above 85°C due to electrolyte evaporation. For the UUE1H221MNS1MS, capacitance retention and ESR stability degrade approximately 10–15% per 10°C increment above 85°C. In automotive underhood applications where ambient temperatures reach 105–125°C, designers should verify the effective lifetime through manufacturer derating curves or reduce operating voltage by 10–20% to extend service life beyond the specified 5000-hour rating. The UUE1H221MNS1MS 220 µF rating assumes ideal thermal conditions; thermal cycling stress in automotive environments can reduce achievable lifetime to 2000–3000 hours if adequate thermal margin is not maintained.
How does the ripple current specification of the UUE1H221MNS1MS affect PCB layout and thermal management in high-frequency switching supplies?
The UUE1H221MNS1MS carries ripple current ratings of 569.5 mA @ 120 Hz and 850 mA @ 100 kHz, indicating higher current absorption capability at elevated frequencies. The 850 mA @ 100 kHz specification for the UUE1H221MNS1MS means this 220 µF capacitor can safely dissipate the internally generated heat from high-frequency switching ripple without exceeding temperature limits. However, PCB layout must account for the cumulative effect: I²R losses in the UUE1H221MNS1MS and its connections generate localized heat that, combined with ambient temperature, can approach or exceed 85°C within the capacitor body. For switching supplies operating above 50 kHz, place the UUE1H221MNS1MS away from other heat sources, use multiple thermal vias under the pad (minimum 0.3 mm diameter, spaced 0.5–1 mm), and maintain copper pour to internal planes to dissipate ripple current heat. Failure to manage ripple current dissipation reduces the effective 5000-hour lifetime of the UUE1H221MNS1MS.
Can the UUE1H221MNS1MS be used as a direct replacement for film capacitors in automotive power distribution circuits?
The UUE1H221MNS1MS is a polar aluminum electrolytic capacitor and is not a direct functional replacement for non-polar film capacitors. Film capacitors maintain capacitance and ESR stability across temperature extremes (−55°C to +125°C), exhibit negligible capacitance drift over lifetime, and tolerate voltage reversal without damage. The UUE1H221MNS1MS, by contrast, loses capacitance as electrolyte ages, exhibits rising ESR at low temperatures, and fails catastrophically if reverse-biased. In automotive DC supply applications where reverse voltage risk is low and thermal cycling is expected, the UUE1H221MNS1MS offers cost and volume advantages. However, in circuits where AC ripple or transient voltage reversals occur (such as some battery management systems), the UUE1H221MNS1MS cannot substitute for film capacitors without redesign. Verify polarity enforcement and supply voltage stability before specifying the UUE1H221MNS1MS in place of film alternatives.
What is the effective capacitance tolerance stack-up when multiple UUE1H221MNS1MS units are paralleled for increased storage capacity?
The UUE1H221MNS1MS carries a ±20% capacitance tolerance, meaning individual units may range from 176 µF to 264 µF at 20°C. When paralleling N units of the UUE1H221MNS1MS, the total capacitance is the sum of individual values, but the worst-case tolerance stack-up remains ±20% of the nominal total (not ±20% per unit). This occurs because capacitance variation in the UUE1H221MNS1MS follows a statistical distribution centered near the nominal 220 µF. For practical designs, paralleling three UUE1H221MNS1MS capacitors yields a nominal 660 µF with effective tolerance of approximately ±15–18% (68% confidence interval), tighter than a single unit. However, ESR improves by only 1/N, meaning three UUE1H221MNS1MS units in parallel reduce combined ESR to roughly one-third the individual value. Thermal dissipation also distributes across multiple pads, reducing localized heating. Always verify that the PCB layout accommodates the increased footprint of paralleled UUE1H221MNS1MS capacitors and that thermal vias are sized for the aggregate ripple current.
How does the MSL 1 (Unlimited) moisture sensitivity rating of the UUE1H221MNS1MS impact reflow soldering and storage procedures?
The UUE1H221MNS1MS is rated MSL 1 (Unlimited), meaning the component absorbs negligible moisture during storage and does not require baking prior to reflow. This classification significantly simplifies supply chain logistics for the UUE1H221MNS1MS compared to higher-sensitivity components (MSL 2–4). No pre-reflow bake-out is required, and the UUE1H221MNS1MS can remain on factory shelves or in field inventory indefinitely without moisture-induced failure risk. However, the can-style SMD package of the UUE1H221MNS1MS still contains electrolyte that may be affected by extreme humidity (>90% RH prolonged exposure). Standard ESD and humidity-controlled assembly (30–60% RH) practices are sufficient. Upon arrival, the UUE1H221MNS1MS may be used immediately; if stored beyond 12 months in uncontrolled environments (>75% RH), a brief (1–2 hour) low-temperature dry condition (≤40°C, <20% RH) is advisable to restore nominal performance. The MSL 1 rating does not eliminate the need for standard moisture protection during handling; it only removes the requirement for active bake cycles.
Why does the UUE1H221MNS1MS specify different ripple current ratings at 120 Hz versus 100 kHz, and how should designers account for mixed-frequency ripple?
The UUE1H221MNS1MS specifies ripple current as 569.5 mA @ 120 Hz and 850 mA @ 100 kHz because capacitor impedance varies with frequency. At low frequencies (120 Hz, typical line-frequency ripple in rectified AC supplies), the UUE1H221MNS1MS impedance is dominated by ESR, and ripple current is thermally limited by resistive dissipation. At high frequencies (100 kHz, switching supply ripple), the 220 µF capacitance of the UUE1H221MNS1MS provides lower impedance, allowing higher current amplitude before thermal limits are exceeded. Real circuits often exhibit dual-frequency ripple: line-frequency (50/60 Hz) superimposed on switching ripple (50–500 kHz). For the UUE1H221MNS1MS in such environments, sum the power dissipation contributions from both ripple components using I_rms(total)² = I_rms(120Hz)² + I_rms(100kHz)², and verify that combined dissipation does not exceed the UUE1H221MNS1MS thermal budget. Exceeding either individual ripple specification of the UUE1H221MNS1MS results in accelerated electrolyte vaporization and early failure.
How does the 50 V rated voltage of the UUE1H221MNS1MS compare to 63 V alternatives in terms of reliability margin and lifetime trade-off?
The UUE1H221MNS1MS is rated 50 V, while equivalent 220 µF capacitors in the same Nichicon UUE series are available at 63 V. Operating the UUE1H221MNS1MS at its full 50 V rating in a stable supply leaves no margin for transient overvoltage, component aging, or supply regulation variation. In contrast, a 63 V rated capacitor of identical capacitance and size provides 26% voltage headroom above 50 V. This headroom directly extends the UUE1H221MNS1MS lifetime: lower applied voltage reduces electric field stress on the oxide layer, slowing electrolyte decomposition. Practical automotive designs often apply the UUE1H221MNS1MS at 40–45 V nominal, accepting the 50 V rating and gaining effective lifetime extension to 7000–9000 hours. However, if the application requires operation above 48 V or exhibits supply ripple peaks near 50 V, the UUE1H221MNS1MS becomes unsuitable; upgrading to a 63 V rated unit ensures margin and reliability. The trade-off: a 63 V capacitor typically occupies slightly larger volume or exhibits higher ESR, both costs that must be weighed against improved reliability.
What is the expected capacitance loss of the UUE1H221MNS1MS over 5000 hours at 125°C, and how does this affect circuit performance?
Nichicon specifies the UUE1H221MNS1MS lifetime as 5000 hours @ 125°C but does not publicly disclose exact capacitance loss curves in standard datasheets. Typical aluminum electrolytic capacitors lose 10–20% of initial capacitance over their rated lifetime; the UUE1H221MNS1MS at 220 µF likely follows this pattern, degrading to approximately 176–198 µF after 5000 hours at sustained 125°C. In applications where the UUE1H221MNS1MS provides energy storage (DC supply buffering, transient load response), 15% capacitance loss translates directly to 15% reduction in stored energy and slower voltage recovery during transients. Circuits that depend on the UUE1H221MNS1MS for filtering ripple voltage will experience ~10–15% higher residual ripple voltage at end-of-life. To design robustly, apply a design derating factor of 0.75–0.80 to the nominal 220 µF specification of the UUE1H221MNS1MS; size circuits as though the UUE1H221MNS1MS provides only 165–176 µF at end-of-life. This practice ensures that circuit performance (ripple attenuation, transient margin) remains acceptable throughout the automotive vehicle lifetime (typically 10–15 years).
Is the UUE1H221MNS1MS suitable for direct automotive 12 V or 24 V supply rail decoupling, or does it require series filtering?
The UUE1H221MNS1MS is suitable for automotive 12 V and 24 V rail decoupling, but application context determines whether additional filtering is necessary. In a 12 V rail supplied by a modern switched-mode power supply (SMPS) or a linear regulator, the UUE1H221MNS1MS alone provides adequate bulk capacitance and ripple current absorption. The 220 µF capacitance of the UUE1H221MNS1MS achieves approximately 40–60 mV ripple attenuation (depending on ESR and ripple frequency), and the 850 mA high-frequency ripple current rating of the UUE1H221MNS1MS handles SMPS switching ripple without thermal stress. However, if the automotive supply exhibits low-frequency ripple from alternator switching (diode rectification, typically 100–300 Hz) or large transient current steps from motor loads, a single UUE1H221MNS1MS may be insufficient. In such cases, parallel multiple UUE1H221MNS1MS units (two or three) to increase effective bulk capacitance to 440–660 µF, improving transient response. For very high di/dt circuits (motor PWM drive returns), add a smaller high-frequency ceramic capacitor (0.1–1 µF, 50 V) in parallel with the UUE1H221MNS1MS to handle steep voltage transients that exceed the slew-rate capability of the 220 µF aluminum electrolytic.
How does the 16.00 mm diameter (0.630 in) footprint of the UUE1H221MNS1MS affect PCB space allocation in compact automotive modules?
The UUE1H221MNS1MS has a 16.00 mm diameter can with a 17.50 mm maximum seated height, resulting in a cylindrical footprint that occupies significantly more board area than equivalent ceramic or film alternatives. The surface mount land size is 17.10 mm × 17.10 mm (approximately 292 mm²), a relatively large single-component footprint. In space-constrained automotive modules (battery management units, motor controllers, compact power supplies), the UUE1H221MNS1MS forces design trade-offs. To maximize board density, position the UUE1H221MNS1MS in less thermally critical areas, use the 17.10 mm × 17.10 mm pad as a thermal hub for heat dissipation, and avoid placing heat-sensitive components (low-ESR power inductors, precision amplifiers) within 10 mm of the UUE1H221MNS1MS. If space is critically limited, consider paralleling two smaller 110 µF aluminum electrolytics (typically 12 mm diameter) as an alternative to a single 220 µF UUE1H221MNS1MS; the cumulative footprint may be comparable, but the distributed thermal and electrical properties often improve ripple distribution. The 16.00 mm diameter of the UUE1H221MNS1MS is not negotiable; it reflects the physical constraints of aluminum can construction and cannot be reduced without switching to a fundamentally different capacitor technology (film, ceramic supercap).
What is the expected ESR (Equivalent Series Resistance) of the UUE1H221MNS1MS at room temperature and how does ESR change with temperature and frequency?
The provided datasheet does not specify nominal ESR for the UUE1H221MNS1MS; however, typical Nichicon UUE series 220 µF aluminum electrolytics at 50 V exhibit ESR of approximately 60–100 mΩ at 20°C and 100 kHz. The UUE1H221MNS1MS ESR degrades (increases) at both low frequency and low temperature: at 120 Hz, ESR may rise to 150–250 mΩ, and at −55°C, ESR can exceed 500 mΩ. This temperature and frequency dependence directly impacts ripple voltage attenuation. At automotive cold-start (−40°C), the UUE1H221MNS1MS ESR increases 3–5×, reducing its effectiveness for ripple filtering and increasing inrush current impedance. In circuits requiring reliable startup below −20°C, parallel the UUE1H221MNS1MS with a smaller ceramic capacitor (1–10 µF, 50 V, X7R grade) to provide low-ESR buffering at low temperatures. Conversely, at 125°C, the UUE1H221MNS1MS ESR decreases slightly due to improved ionic conductivity of the aging electrolyte, but overall capacitance loss dominates performance degradation. Request ESR vs. temperature curves from Nichicon if your circuit requires precise ripple prediction across the UUE1H221MNS1MS full operating range.
Are there drop-in mechanical and electrical substitutes for the UUE1H221MNS1MS, and what compatibility factors must be verified?
The datasheet lists UUH1H221MNQ1MS and UUH1H221MNQ1ZD as potential substitutes for the UUE1H221MNS1MS. Both alternatives are Nichicon aluminum electrolytics with identical 220 µF / 50 V ratings and similar 16.00 mm diameter form factors. However, verification is required: the UUH series may have different ESR, ripple current ratings, or lifetime specifications compared to the UUE1H221MNS1MS. Before substituting, obtain the UUH datasheet and compare ESR (affects ripple attenuation), ripple current @ 100 kHz (affects thermal performance), and lifetime @ 125°C (affects reliability margin). A mechanical fit on the PCB pad (17.10 mm × 17.10 mm land) is likely but not guaranteed if lead diameter or can height differs. If the application involves automotive safety or mission-critical functions, Nichicon requires formal qualification of the substitute; do not rely on generic part number similarity. Third-party suppliers (Panasonic, Rubycon, Capxon) offer 220 µF / 50 V aluminum electrolytics with equivalent mechanical envelopes, but these introduce additional qualification risk and supply chain complexity. For cost reduction, parallel lower-value UUE1H221MNS1MS units (two 110 µF capacitors) rather than changing suppliers entirely.
How should the UUE1H221MNS1MS be handled during pick-and-place assembly to prevent mechanical damage to the can and solder joints?
The UUE1H221MNS1MS is a radial, can-style SMD component with a cylindrical aluminum body prone to denting if grasped too forcefully by pick-and-place tooling. Damage to the can compromises the hermetic seal and accelerates electrolyte leakage, reducing the 5000-hour lifetime and risking field failures. Configure the pick-and-place gripper for the UUE1H221MNS1MS with soft silicone fingers (pressure setting 0.3–0.5 bar) and approach the component from the top (can body) rather than the side. Avoid suction cups; the UUE1H221MNS1MS can be damaged by vacuum if adhesion causes lateral stress. Place the UUE1H221MNS1MS with the positive lead marker (stripe, indentation, or printed symbol) clearly visible post-placement for solder inspection. During reflow, the lead frame and can of the UUE1H221MNS1MS experience thermal stress; limit reflow peak temperature to 260°C (max 10 seconds above 240°C per IPC-A-610 standard) to avoid can seal degradation. Post-reflow, inspect the UUE1H221MNS1MS solder fillets visually and via X-ray if available; cold solder joints on the UUE1H221MNS1MS result in intermittent electrical behavior and thermal runaway. For high-volume automotive production, implement in-circuit testing (ICT) of the UUE1H221MNS1MS to detect assembly defects early.

Parts with Similar Specifications

The three parts on the right have similar specifications to Nichicon UUE1H221MNS1MS

Product Attribute UUE1H101MNS1MS UUE1H331MNS1MS UUE1H471MNS1MS UUE1H221MNS1ZD
Part Number UUE1H101MNS1MS UUE1H331MNS1MS UUE1H471MNS1MS UUE1H221MNS1ZD
Manufacturer Nichicon Nichicon Nichicon Nichicon
Applications - - - -
Operating Temperature - -40°C ~ 85°C 0°C ~ 70°C -40°C ~ 85°C
Ripple Current @ High Frequency - - - -
Ripple Current @ Low Frequency - - - -
Size / Dimension - - - -
Capacitance - - - -
Mounting Type - Surface Mount Through Hole Surface Mount
Package / Case - 196-LFBGA 16-DIP (0.300', 7.62mm) 64-VFQFN Exposed Pad
Lead Spacing - - - -
Lifetime @ Temp. - - - -
Package - Tape & Reel (TR) Tube Tape & Reel (TR)
Height - Seated (Max) - - - -
Polarization - - - -
Surface Mount Land Size - - - -
Ratings - - - -
ESR (Equivalent Series Resistance) - - - -
Tolerance - - - -
Series - - - -
Voltage - Rated - - - -

UUE1H221MNS1MS Datasheet PDF

Download UUE1H221MNS1MS pdf datasheets and Nichicon documentation for UUE1H221MNS1MS - Nichicon.

Datasheets
Aluminum Electrolytic Land, Reflow.pdf Chip Type Tape Spec.pdf
HTML Datasheet
UUE Series.pdf

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    Sep 22, 2026

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    Put this transceiver into an RS-485 interface used around industrial equipment. Communication remained reliable during testing with motors switching nearby. Good result for the replacement board.

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    Used this rectifier in a high-current power supply repair. Forward behavior looked normal on the bench and the supply has been running under load without trouble.

  • Retr***UWorks
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    Needed the exact ST10F269Z2Q6 for servicing an older control unit. The chip programmed successfully and the board passed our functional test afterward. Much easier than redesigning around a newer MCU.

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    I needed this ADC for an older data acquisition board. Readings have been repeatable and the noise level is comparable to the original circuit. Happy with the purchase.

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    one of my hobbies is skydiving. and when i'm skydiving this works great.

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UUE1H221MNS1MS Image

UUE1H221MNS1MS

Nichicon
98D-UUE1H221MNS1MS

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