Jianghai CD138 PC Screw Terminal Aluminum Electrolytic Capacitors
Jianghai CD138 PC capacitors are screw terminal aluminum electrolytic capacitors developed for high-current professional power applications and inverter equipment. The reviewed CD138 PC documentation covers rated voltages from 350V to 450V and capacitance values from 1000µF to 18000µF, with an operating temperature range of -40°C to +85°C. Jianghai identifies the series as a long-life, high-reliability capacitor family and specifies a 5000-hour load-life test at 85°C in the reviewed datasheet.
Apexon Supply supports industrial buyers sourcing Jianghai CD138 PC capacitors for production, maintenance, repair, replacement, and difficult-to-find requirements. Buyers can browse the broader Jianghai capacitor collection for additional JiangHai aluminum electrolytic capacitor models. Because CD138 PC includes multiple capacitance, case-size, ripple-current, ESR, mounting, and terminal combinations, selection should be based on the complete electrical and mechanical requirement rather than voltage and capacitance alone.
Jianghai CD138 PC Series Overview
CD138 is the Jianghai screw-terminal capacitor series designation, while PC is the corresponding series code used within the manufacturer's part-number system. The series is intended for high-current professional power applications and inverters where screw-terminal construction, high capacitance, defined ripple-current capability, and industrial mounting arrangements are required.
The reviewed CD138 PC documentation specifies an overall voltage range of 350V to 450V and an overall capacitance range of 1000µF to 18000µF. Not every capacitance is available at every voltage, and individual models have different ESR values, ripple-current ratings, diameters, body lengths, and order codes.
| Series Characteristic | CD138 PC Specification |
|---|---|
| Capacitor type | Aluminum electrolytic capacitor |
| Construction | Screw terminal |
| Series code | PC |
| Rated voltage range | 350V to 450V |
| Capacitance range | 1000µF to 18000µF |
| Operating temperature | -40°C to +85°C |
| Capacitance tolerance | ±20% at 20°C, 120Hz |
| Dissipation factor | Less than 0.15 at 20°C, 120Hz |
| Load-life test | 5000 hours at 85°C under specified datasheet conditions |
| Published applications | High-current professional power applications and inverters |
CD138 PC 350V, 400V and 450V Capacitor Range
The CD138 PC ratings table is organized into 350V, 400V, and 450V groups. Each voltage class contains several capacitance and physical-size options. Buyers comparing models should consider the entire row of electrical and mechanical data because increasing capacitance can change case size, ESR, and rated ripple-current capability.
350V CD138 PC Capacitors
The 350V group covers capacitance values from 1200µF through 18000µF in the reviewed ratings table. Representative values include 1500µF, 1800µF, 2200µF, 2700µF, 3300µF, 3900µF, 4700µF, 5600µF, 6800µF, 8200µF, 10000µF, 12000µF, 15000µF, and 18000µF.
For example, the catalog lists a 350V 3300µF configuration with a 51 × 130mm case, 23mΩ typical ESR at 20°C and 120Hz, and 11.3Arms rated ripple current at 85°C and 120Hz. By comparison, the 350V 18000µF configuration uses a 90 × 236mm case and has substantially different ESR and ripple-current characteristics. These values demonstrate why one CD138 PC model should not be treated as representative of every capacitor in the series.
400V CD138 PC Capacitors
The documented 400V group begins at 1000µF and includes ratings through 15000µF. Catalog values include 1000µF, 1200µF, 1500µF, 1800µF, 2200µF, 2700µF, 3300µF, 3900µF, 4700µF, 5600µF, 6800µF, 8200µF, 10000µF, 12000µF, and 15000µF.
A representative 400V 3300µF catalog configuration uses a 64 × 115mm case with 21mΩ typical ESR and 11.8Arms rated ripple current at 85°C and 120Hz. The 400V 6800µF configuration increases to a 77 × 155mm case and is rated at 20.2Arms under the same published ripple-current conditions. Mechanical clearance and current requirements should therefore be checked together when selecting or replacing a capacitor.
450V CD138 PC Capacitors
The 450V portion of the CD138 PC range covers 1000µF through 12000µF in the reviewed standard ratings table. Available catalog values include 1000µF, 1200µF, 1500µF, 1800µF, 2200µF, 2700µF, 3300µF, 3900µF, 4700µF, 5600µF, 6800µF, 8200µF, 10000µF, and 12000µF.
Apexon also provides an individual listing for the Jianghai CD138 10000µF 450V screw terminal capacitor. In the reviewed standard ratings table, the 450V 10000µF configuration uses a 90 × 196mm case and is rated at 28.3Arms ripple current at 85°C and 120Hz. Buyers should still confirm the complete order code and mounting or terminal configuration for the required unit before purchasing.
Representative CD138 PC Catalog Configurations
The examples below are selected from the reviewed CD138 PC ratings table to illustrate how specifications vary across the family. They are not an exhaustive product list. The catalog order code can require additional mounting and terminal characters, so the base code alone should not be treated as a complete purchasing reference without confirmation.
| Rated Voltage | Capacitance | Typical ESR at 20°C, 120Hz | Rated Ripple Current at 85°C, 120Hz | Case Size D × L | Catalog Base Code |
|---|---|---|---|---|---|
| 350V | 3300µF | 23mΩ | 11.3Arms | 51 × 130mm | ECG2VPC332MC130 |
| 350V | 8200µF | 11mΩ | 22.1Arms | 77 × 155mm | ECG2VPC822ME155 |
| 400V | 3300µF | 21mΩ | 11.8Arms | 64 × 115mm | ECG2GPC332MD115 |
| 400V | 6800µF | 13mΩ | 20.2Arms | 77 × 155mm | ECG2GPC682ME155 |
| 450V | 5600µF | 13mΩ | 18.3Arms | 77 × 155mm | ECG2WPC562ME155 |
| 450V | 10000µF | 9mΩ | 28.3Arms | 90 × 196mm | ECG2WPC103MF196 |
For a broader comparison of Jianghai screw-terminal families, buyers can also review the Jianghai CD135 BP, CD136 PK and CD138 PC screw-terminal capacitor guide.
Understanding the Jianghai CD138 PC Part Number
The CD138 PC part-number system encodes several electrical and mechanical characteristics. A datasheet example for a 400V 6800µF capacitor begins with ECG2GPC682ME155, where PC identifies the CD138 series. Other characters identify the rated-voltage code, capacitance code, capacitance tolerance, case diameter, and body length. Mounting style and terminal details are added as part of the complete ordering configuration.
The reviewed documentation identifies several mounting-style codes, including bolt mounting, three-leg bracket mounting, two-leg bracket mounting, and no-bracket configurations. Diameter codes are also part of the ordering system. This means a buyer should not assume that two capacitors described simply as “CD138 400V 6800µF” have the same mounting arrangement or complete order number.
How to Select a Jianghai CD138 PC Capacitor
For industrial procurement or replacement work, confirm the following information before ordering:
- Complete part number: Record all characters printed on the existing capacitor or specified in the approved bill of materials.
- Rated voltage: Confirm whether the application requires a 350V, 400V, or 450V CD138 PC model.
- Surge voltage: Check the manufacturer's applicable surge-voltage value for the selected voltage class.
- Capacitance: Match the required nominal capacitance and tolerance.
- ESR: Compare the specified ESR under the relevant temperature and frequency conditions.
- Ripple current: Confirm the required RMS ripple-current capability and the frequency and temperature at which it is specified.
- Case dimensions: Check capacitor diameter, body length, terminal spacing, and available installation clearance.
- Mounting style: Confirm bolt mounting, bracket mounting, or no-bracket construction as applicable.
- Terminal configuration: Verify the required terminal option rather than assuming all CD138 PC units use the same terminal arrangement.
- Operating temperature: Confirm that the actual equipment environment is within the documented -40°C to +85°C range.
- Datasheet revision: For older equipment, compare the part number against the technical document applicable to that installed component.
Ripple Current, ESR and Frequency Considerations
CD138 PC specifications include rated ripple current at 85°C and 120Hz, but actual power-electronics applications may operate with different ripple-current frequency content. The reviewed datasheet therefore provides a frequency coefficient table rather than implying that the 120Hz value remains unchanged at every frequency.
The published ripple-current coefficient is 0.80 at 50/60Hz, 1.00 at 120Hz, 1.10 at 300Hz, 1.30 at 1kHz, and 1.40 above 10kHz. These are series-level datasheet coefficients, while the base ripple-current rating itself is model-specific.
The datasheet also includes typical ESR-versus-frequency and impedance-versus-frequency curves. These curves illustrate that capacitor behavior changes with frequency, reinforcing the importance of comparing more than nominal capacitance and voltage when evaluating a replacement for an inverter or professional power application.
Temperature and CD138 PC Service-Life Considerations
The reviewed CD138 PC documentation identifies a 5000-hour load-life test at 85°C under defined test conditions. This number is a qualification condition and should not be interpreted as a guaranteed field lifetime or as a prediction that every capacitor will operate for exactly 5000 hours.
The datasheet also provides a lifetime diagram showing the relationship between ambient temperature, actual ripple current, rated ripple current, and useful-life multiplier. Lower electrical and thermal loading can affect expected operating duration, while excessive ripple current or inadequate cooling can reduce capacitor life.
Because CD138 PC documentation has existed in different revisions and regional catalogs, buyers maintaining older equipment should verify the technical document associated with the exact order code. Lifetime terminology from one catalog revision should not automatically be applied to every historical or current CD138 capacitor.
Industrial Applications for CD138 PC
Jianghai identifies the CD138 PC family for high-current professional power applications and inverters. These applications can require large screw-terminal capacitors with defined voltage, capacitance, ripple-current, ESR, temperature, and mechanical characteristics.
Selection should still be based on the equipment's actual electrical design. An inverter model using a 400V capacitor cannot be assumed to accept every CD138 PC capacitor in the 400V group, because capacitance, physical dimensions, ripple-current capability, ESR, mounting arrangement, and terminal details can differ significantly.
CD138 PC Replacement and Difficult-to-Find Sourcing
Professional power equipment and industrial inverter systems may remain in service for many years. Maintenance teams can therefore encounter older CD138 PC capacitors with historical order codes, discontinued equipment references, damaged labels, or mounting configurations that are difficult to identify through a basic voltage-and-capacitance search.
Apexon Supply can support the identification process by reviewing the complete JiangHai part number, capacitor label, datasheet, dimensions, mounting arrangement, terminal configuration, equipment nameplate, and application information. If the exact original CD138 PC model can be sourced through an appropriate supply channel, Apexon can coordinate procurement according to the confirmed part number, required quantity, and destination. Availability must be checked for each inquiry and is not guaranteed by inclusion in a catalog or online product listing.
If the original capacitor cannot be sourced, a possible alternative should only be considered after the relevant electrical and mechanical characteristics are compared. Rated voltage, capacitance, ESR, ripple-current capability, operating temperature, case diameter, body length, mounting style, terminal construction, and equipment requirements can all affect suitability.
Other Jianghai screw-terminal capacitor families may offer different voltage, temperature, size, current, or lifetime characteristics, but a related series should not automatically be treated as a drop-in replacement. Any alternative should be technically reviewed and confirmed for the specific equipment before installation.
Why Source Jianghai CD138 PC Capacitors Through Apexon
Apexon Supply is an independent global B2B sourcing supplier for industrial electrical components, automation parts, replacement parts, and obsolete or difficult-to-find products. Apexon is not presented as an authorized Jianghai distributor, manufacturer representative, or brand affiliate.
For CD138 PC requirements, Apexon can support part-number verification, datasheet review, specification comparison, identification from product labels and photos, and sourcing coordination for standard or difficult-to-find requirements. This can be useful when a procurement team has only an equipment reference, partial capacitor code, old datasheet, or installed component that needs to be matched before quotation.
Browse the Jianghai aluminum electrolytic capacitor collection for related products, or submit the required specifications through the Apexon Request a Quote page.
Related Jianghai Screw Terminal Capacitor Series
For other Jianghai screw terminal capacitor requirements, buyers can also review the Jianghai CD135 BP standard 85°C screw terminal capacitor series and the Jianghai CD136 PK 105°C screw terminal capacitor series. These series provide different temperature, lifetime, voltage, capacitance, and mechanical options, but any replacement or alternative should be verified against the exact electrical and installation requirements before selection.
Jianghai CD138 PC FAQ
What is the Jianghai CD138 PC series?
CD138 PC is a Jianghai screw-terminal aluminum electrolytic capacitor series designed for high-current professional power applications and inverters. PC is the series code used in the manufacturer's screw-terminal part-number system.
What voltage range does CD138 PC cover?
The reviewed CD138 PC ratings cover 350V, 400V, and 450V rated-voltage classes.
What capacitance range is available?
The documented overall capacitance range is 1000µF to 18000µF. The available values depend on voltage class, so not every capacitance is offered at every voltage.
What is the operating temperature range of CD138 PC?
The reviewed series documentation specifies an operating temperature range of -40°C to +85°C.
What is the load-life rating of CD138 PC?
The reviewed CD138 PC datasheet specifies a 5000-hour load-life test at 85°C under defined conditions. Field operating life depends on actual electrical loading, ripple current, ambient temperature, cooling, and other application conditions.
Can I replace a CD138 capacitor by matching only voltage and capacitance?
No. Replacement selection should also consider ESR, ripple-current capability, physical dimensions, mounting style, terminal configuration, temperature range, and the complete part number.
What information should I provide if the CD138 part number is incomplete?
Send clear photos of the capacitor label, terminals, mounting arrangement, and equipment nameplate together with the measured case dimensions, rated voltage, capacitance, equipment model, and any available datasheet or schematic information.
Can Apexon help source an older or difficult-to-find CD138 PC capacitor?
Apexon supports sourcing inquiries for standard, older, obsolete, and difficult-to-find industrial components. Sourcing options depend on the exact order code, specifications, quantity, and current supply conditions, so each requirement must be checked individually.
Request a Jianghai CD138 PC Quote
For a Jianghai CD138 PC sourcing requirement, send Apexon Supply the complete part number, required quantity, destination country, rated voltage, capacitance, case dimensions, mounting style, and terminal information where available. For replacement projects, clear photos of the capacitor label, terminals, equipment nameplate, and any existing datasheet can help verify the correct configuration before quotation.