KEMET Industrial Aluminum Electrolytic Capacitors
Apexon Supply supports industrial buyers sourcing KEMET aluminum electrolytic capacitors for power conversion, filtering, smoothing, energy storage, DC-link circuits, and maintenance replacement projects. The products represented in this collection center on KEMET ALS30 and ALS31 screw terminal capacitors, with selected PEH169 and PEH200 screw terminal models and an ALC10 snap-in model. The listed parts cover a broad mix of capacitance values, voltage ratings, case formats, and mounting arrangements, so identification by brand alone is not sufficient.
For a new build or replacement request, start with the complete manufacturer part number and then verify the electrical, mechanical, thermal, and connection requirements against the applicable datasheet. Apexon Supply is an independent global B2B sourcing supplier. We can help buyers organize model verification, review available documentation, and coordinate sourcing for standard, obsolete, or difficult-to-find KEMET capacitor part numbers without assuming that every listed item is immediately available.
KEMET Aluminum Electrolytic Capacitors for Industrial Power Systems
KEMET-branded aluminum electrolytic capacitors are used where a circuit requires bulk capacitance, controlled ripple-current performance, and dependable operation in industrial power equipment. Current manufacturer literature describes ALS30/31 as an +85°C screw terminal range covering multiple case sizes and voltage classes. It identifies smoothing, energy storage, pulse operation, frequency converters, uninterruptible power supplies, switch-mode power supplies, process control, AC motor control, traction, welding, telecommunications power supplies, and measuring equipment as typical application areas.
Those are series-level capabilities, not interchangeable specifications. Capacitance, rated voltage, surge voltage, ESR, impedance, ripple current, case dimensions, terminal details, mounting option, and operational life vary by part number. The correct selection must be based on the individual datasheet and the actual electrical and mechanical conditions in the equipment.
Product Range
ALS30 and ALS31 Screw Terminal Capacitors
ALS30 and ALS31 form the main product group in this collection. Manufacturer documentation defines them as polarized screw terminal aluminum electrolytic capacitors. In the current part-number system, the digit after ALS3 identifies the can mounting option: 0 indicates a plain can and 1 indicates a threaded mounting stud. The remaining characters identify termination, capacitance code, size code, and rated voltage. Legacy markings or order codes may follow a different format, so the complete marking and supporting datasheet should be retained during replacement review.
The supplied product set includes low-voltage, high-capacitance options such as ALS30A104NP063, 100,000 µF at 63 V and ALS30A473MF063, 47,000 µF at 63 V. Higher-voltage examples include ALS30A103QP400N, 10,000 µF at 400 VDC, ALS30A332NP450, 3,300 µF at 450 V, and ALS30A222NP500, 2,200 µF at 500 V. These examples are representative rather than exhaustive.
ALS31 options represented here include ALS31A223MF100, also shown with order code A431PM223M100A, at 22,000 µF and 100 VDC, plus ALS31C1115NF at 6,000 µF and 315 VDC. A matching capacitance and voltage do not by themselves confirm a replacement because the stud arrangement, can diameter and length, terminal geometry, ripple-current conditions, ESR, and expected life may differ.
PEH169 and PEH200 Heavy-Duty Screw Terminal Capacitors
The PEH families provide additional screw terminal choices for demanding power applications. KEMET literature describes PEH169 as a polarized, all-welded design with heavy-duty screw terminals, an extended cathode construction, a safety vent, and plastic insulation. Typical applications include smoothing, energy storage, pulse operation, process control, AC motor control, traction, welding, and measuring systems. The listed PEH169UV447CQB2, also identified as A471ST472Q350AV00C, is rated 4,700 µF at 350 V.
PEH200 is also a screw terminal series. Manufacturer literature highlights high current ratings and compact construction for equipment such as UPS systems, ground power units, welding equipment, and drives. This collection includes PEH200OV433CMUV-M6 at 3,300 µF and 420 VDC and PEH200OV456CMUV-M6 at 5,600 µF and 420 VDC, both described with M6 screw terminals. Verify dimensions, terminal torque requirements, ripple-current conditions, and mounting details before specifying either model.
ALC10 Snap-In Capacitors
Not every item in the collection uses screw terminals. The ALC10A151CB450 is a 150 µF, 450 VDC aluminum electrolytic capacitor with a two-pin snap-in termination. KEMET literature describes ALC10 as a +85°C snap-in family for high-voltage, high-ripple applications including frequency converters, UPS systems, and switch-mode power supplies. A snap-in model is mechanically and electrically distinct from the screw terminal families and should not be treated as a drop-in substitute without a complete design review.
Representative KEMET Models
The following examples show the range of configurations represented by the supplied product pages. They do not constitute the complete KEMET portfolio or a replacement matrix.
| Series | Model | Capacitance | Rated voltage | Termination or mounting |
|---|---|---|---|---|
| ALS30 | ALS30A104NP063 | 100,000 µF | 63 V | Screw terminal, chassis mount |
| ALS30 | ALS30A473MF063 | 47,000 µF | 63 V | Screw terminal, chassis mount |
| ALS30 | ALS30A103QP400N | 10,000 µF | 400 VDC | Screw terminal, chassis mount |
| ALS30 | ALS30A332NP450 | 3,300 µF | 450 V | Screw terminal, chassis mount |
| ALS30 | ALS30A222NP500 | 2,200 µF | 500 V | Screw terminal, chassis mount |
| ALS31 | ALS31A223MF100 | 22,000 µF | 100 VDC | Screw terminal |
| ALS31 | ALS31C1115NF | 6,000 µF | 315 VDC | Screw terminal, radial mount |
| PEH169 | PEH169UV447CQB2 | 4,700 µF | 350 V | Screw terminal |
| PEH200 | PEH200OV456CMUV-M6 | 5,600 µF | 420 VDC | M6 screw terminal, chassis mount |
| ALC10 | ALC10A151CB450 | 150 µF | 450 VDC | Two-pin snap-in |
How to Select a KEMET Industrial Capacitor
- Confirm the full part number. Record every character from the capacitor marking, purchase record, or equipment bill of materials. Similar-looking ALS30 or ALS31 codes can identify different capacitance, case size, voltage, mounting, or terminal options.
- Match capacitance and continuous rated voltage. Use the required capacitance tolerance and DC rating from the original design. Surge voltage is a short-duration condition and must not be substituted for the continuous rated voltage.
- Review ripple current, ESR, and impedance at the stated conditions. Values depend on test frequency and temperature. A candidate with the same capacitance and voltage may still run hotter or perform differently under the equipment's ripple-current spectrum.
- Check physical fit. Verify can diameter, can length, terminal spacing, terminal thread, mounting clamp, plain-can or threaded-stud option, required clearances, polarity marking, and connection hardware. For ALC10, confirm PCB footprint and snap-in pin arrangement.
- Check temperature and life assumptions. Manufacturer literature lists series-level maximum life figures under defined rated-voltage, ripple-current, and temperature conditions. Actual model life and service life in equipment depend on the selected part, ambient temperature, cooling, electrical stress, duty cycle, and installation.
- Confirm compliance and application requirements. Review the current manufacturer datasheet and any project-specific environmental, quality, safety, or documentation requirements. Do not infer approval for an application from the brand or series name alone.
Industrial Applications
KEMET screw terminal and snap-in aluminum electrolytic capacitors represented in this collection may be considered for functions documented by the relevant series literature, including:
- DC-link energy storage and ripple smoothing in frequency converters, inverters, and AC motor drives
- Bulk filtering in UPS systems, switch-mode power supplies, and demanding telecommunications power supplies
- Energy storage or pulse operation in welding, traction, and industrial power equipment
- Power sections in process-control and measuring equipment
- PEH200 applications such as ground power units where compact construction and high current capability are important
The final capacitor must be validated within the actual circuit. Inrush current, discharge arrangements, series or parallel bank design, balancing, cooling, enclosure temperature, vibration, and fault protection can affect suitability and lifetime.
Replacement and Obsolete KEMET Capacitor Sourcing
Industrial maintenance teams often encounter KEMET capacitors through an equipment BOM, a legacy label, an older order code, or an installed component with incomplete documentation. A replacement review should begin with the exact marking and the original equipment requirements. Capacitance and voltage are essential, but they are only the first screening fields. Ripple current, ESR, impedance, dimensions, terminal style, mounting method, polarity, temperature category, expected life, and application duty must also be compared.
Apexon Supply can support a part-number-led sourcing review for KEMET ALS30, ALS31, PEH169, PEH200, ALC10, and other identified capacitor models. When the original KEMET part can be sourced, the team can coordinate the commercial request and supporting documentation available for that offer. If an original model is obsolete or difficult to locate, a possible alternative should be considered only after its electrical, mechanical, thermal, and application requirements have been checked. Apexon does not guarantee availability, drop-in compatibility, or equivalence based only on a cross-reference.
For older or uncertain parts, send clear photographs of the complete label, terminal end, mounting arrangement, and surrounding installation. A datasheet, schematic excerpt, equipment model, former supplier code, and measured dimensions can help distinguish similarly marked products and reduce the risk of selecting an unsuitable substitute.
Why Industrial Buyers Work With Apexon Supply
- Model verification: Review of complete manufacturer part numbers, markings, and order-code aliases before quotation.
- Datasheet-led comparison: Organization of electrical, mechanical, and environmental fields relevant to the sourcing request.
- Difficult-to-find support: Sourcing coordination for current, legacy, obsolete, or locally unavailable industrial components.
- Global B2B coordination: Support for quantities, documentation needs, destination details, and industrial procurement communication.
Apexon Supply operates independently and is not presented as an authorized KEMET distributor or brand affiliate. Product status, lead time, documentation, and commercial terms should be confirmed for each quotation.
Frequently Asked Questions
Which KEMET capacitor series are included on this page?
The supplied product pages primarily cover ALS30 and ALS31 screw terminal aluminum electrolytic capacitors. They also include selected PEH169 and PEH200 screw terminal models and one ALC10 snap-in model. The examples are not the complete KEMET capacitor portfolio.
Are ALS30 and ALS31 capacitors interchangeable?
Not automatically. Current manufacturer documentation uses the ALS30 and ALS31 designations to distinguish mounting options within the screw terminal family, but every remaining part-number field still matters. Confirm the complete MPN, capacitance, voltage, case size, terminals, ripple current, ESR, temperature, and life data.
Can a capacitor with the same capacitance and voltage replace the original?
Those two values are necessary but insufficient. The replacement must also meet the circuit's ripple-current and thermal requirements and fit the original mounting and connection arrangement. ESR, impedance, surge conditions, polarity, dimensions, terminal hardware, and expected operational life require review.
What information should I provide for a KEMET capacitor quote?
Send the complete manufacturer part number, required quantity, destination country, and any required documentation. For replacement work, also provide label and terminal photos, the original datasheet if available, equipment make and model, application details, and critical dimensions.
Can Apexon help with an obsolete or hard-to-find KEMET model?
Yes. Apexon can review the identification and coordinate a sourcing inquiry. If the exact original is unavailable, alternatives can be investigated only as candidates subject to technical confirmation. Availability and equivalence are not guaranteed.
How should stored or long-idle aluminum electrolytic capacitors be handled?
Storage history can affect leakage current and commissioning procedures. Follow the current manufacturer datasheet for the exact series and part number, including any reforming or re-aging guidance, and use qualified technical personnel before energizing equipment.
Does a product listing confirm current stock or lead time?
No. A listing identifies a product that can be included in a sourcing request; it does not establish universal or real-time availability. Confirm quantity, condition, documentation, lead time, and commercial terms through a current quotation.
Request a KEMET Capacitor Quote
Send Apexon Supply the KEMET part number, required quantity, destination country, and requested delivery timing. For replacement or uncertain identification, include clear nameplate and terminal photos, the datasheet or equipment BOM, equipment information, application details, and critical dimensions. The team will use the supplied evidence to review the model and coordinate the sourcing request.