Jianghai CD136 PK Screw Terminal Capacitor Selection Guide
The Jianghai CD136 PK Series is a family of screw terminal aluminum electrolytic capacitors designed for professional inverter and power-supply applications. The series combines high capacitance, high ripple-current capability, industrial screw-terminal construction, and a rated load life of 2000 hours at 105°C.
This technical guide summarizes the CD136 PK voltage and capacitance ranges, part-number system, ESR and ripple-current considerations, dimensions, mounting options, temperature correction data, and replacement-selection points.
Buyers looking for currently listed models can browse the Jianghai CD136 PK Capacitor Collection .
CD136 PK Series Technical Overview
| Manufacturer | Jianghai |
| Series | CD136 PK |
| Product Type | Screw Terminal Aluminum Electrolytic Capacitor |
| Rated Voltage Range | 25V–450V DC |
| Capacitance Range | 220μF–330,000μF across the detailed rating matrix |
| Capacitance Tolerance | ±20% at 20°C, 120Hz |
| Load Life | 2000 hours at 105°C |
| Operating Temperature, 25–100V | -40°C to +105°C |
| Operating Temperature, 160–450V | -25°C to +105°C |
| Standard Case Diameters | 36 / 51 / 64 / 77 / 90 mm |
| Compliance | RoHS |
Voltage and Capacitance Selection
The CD136 PK rating matrix covers eleven main rated-voltage groups. Available capacitance depends strongly on voltage rating, with very-high-capacitance values concentrated in the lower-voltage ranges.
| Rated Voltage | Surge Voltage | Capacitance Range in Rating Table |
|---|---|---|
| 25V | 32V | 10,000–330,000μF |
| 35V | 44V | 6,800–220,000μF |
| 50V | 63V | 3,300–150,000μF |
| 63V | 79V | 2,200–100,000μF |
| 80V | 100V | 2,200–68,000μF |
| 100V | 125V | 1,000–47,000μF |
| 160V | 200V | 470–22,000μF |
| 200V | 250V | 330–15,000μF |
| 250V | 300V | 330–15,000μF |
| 400V | 450V | 1,000–10,000μF |
| 450V | 500V | 220–5,600μF |
Some voltage and capacitance combinations are available in more than one physical size. In those cases, ESR, rated ripple current and case dimensions can differ even when the nominal voltage and capacitance are the same.
How to Read a CD136 PK Part Number
Jianghai uses a structured part-number system. The manufacturer gives ECG2GPK332MD130Y as an example for a 400V, 3300μF CD136 PK capacitor.
| Code | Meaning | Example |
|---|---|---|
| ECG | Electrolytic capacitor, screw terminal type | ECG |
| 2G | Rated-voltage code | 400V |
| PK | Series code | CD136 PK |
| 332 | Rated-capacitance code | 3300μF |
| M | Capacitance tolerance | ±20% |
| D | Diameter code | 64mm |
| 130 | Case length | 130mm |
| Y | Mounting style | 3-leg bracket |
Diameter and Mounting Codes
| Diameter Code | Diameter | Mounting Style Code | Mounting Style |
|---|---|---|---|
| A | 36mm | B | Bolt mounting |
| C | 51mm | Y | 3-leg bracket |
| D | 64mm | I | 2-leg bracket |
| E | 77mm | N | No bracket |
| F | 90mm | ||
| G | 100mm |
Terminal options form an additional part of the Jianghai part-number system and should also be confirmed when replacing an existing capacitor.
Ripple Current Frequency Correction
Rated ripple current in the CD136 PK rating table is specified at 105°C and 120Hz. Jianghai provides correction coefficients when the operating frequency differs from 120Hz.
| Rated Voltage | 50/60Hz | 120Hz | 300Hz | 1kHz | >10kHz |
|---|---|---|---|---|---|
| 25–100V | 0.95 | 1.00 | 1.04 | 1.10 | 1.15 |
| 160–250V | 0.90 | 1.00 | 1.08 | 1.15 | 1.20 |
| 350–450V | 0.80 | 1.00 | 1.18 | 1.35 | 1.40 |
Ambient Temperature Ripple Current Coefficients
| Rated Voltage | 40°C | 55°C | 70°C | 85°C | 105°C |
|---|---|---|---|---|---|
| 25–100V | 4.9 | 3.9 | 3.0 | 1.8 | 1.0 |
| 160–250V | 3.8 | 3.3 | 2.5 | 2.0 | 1.0 |
| 350–450V | 2.44 | 2.28 | 2.12 | 2.0 | 1.0 |
These are manufacturer correction coefficients and should be applied only in accordance with the CD136 PK technical guidance. Capacitor life can generally be improved by operating below rated voltage, ripple-current, or temperature limits and by using appropriate cooling.
ESR and Ripple Current Matter in Replacement Selection
A replacement capacitor should not be selected only because its voltage and capacitance match the original component.
Before approving a CD136 PK replacement, verify:
- Rated voltage and surge voltage
- Nominal capacitance and tolerance
- Rated ripple current at 105°C, 120Hz
- Typical ESR at 20°C, 120Hz
- Dissipation factor
- Case diameter and length
- Terminal configuration
- Bracket or bolt-mounting arrangement
- Operating temperature
- Expected load life and thermal conditions
Higher ESR or inadequate ripple-current capability can increase internal heating and reduce capacitor service life in inverter and power-supply applications.
Screw Terminal and Installation Information
- Standard screw sizes include M5 × 10 and M6 × 12
- Longer screws may be available on request
- Maximum tightening torque for M5 screw terminal: 3 N·m
- Maximum tightening torque for M6 screw terminal: 4 N·m
- Maximum torque for M12 bolt mounting: 12.5 N·m
Dimensions, terminal spacing and mounting hardware should be confirmed against the original installation before approving a replacement.
Representative CD136 PK Models at Apexon Supply
The current Apexon Supply CD136 PK collection includes low-voltage, ultra-high-capacitance models as well as high-voltage capacitor configurations for professional power electronics.
- ECG1EPK334MF131 — 25V, 330,000μF, 2mΩ ESR, 19.9 Arms, 90 × 131mm
- ECG1VPK224MF131 — 35V, 220,000μF, 2mΩ ESR, 17.6 Arms, 90 × 131mm
- ECG2GPK332MD130 — 400V, 3300μF, 20mΩ ESR, 9.7 Arms, 64 × 130mm
- ECG2WPK222MD115 — 450V, 2200μF, 33mΩ ESR, 7.3 Arms, 64 × 115mm
Browse the full Jianghai CD136 PK Collection for currently listed voltage, capacitance and case-size combinations.
Typical Applications
Jianghai identifies professional inverters and power supplies as the principal applications for the CD136 PK series. Depending on the exact circuit and model, these capacitors may be considered for:
- Professional inverter systems
- Industrial DC-link and energy-storage circuits
- High-capacity industrial power supplies
- Power-conversion equipment
- Industrial power-electronics repair
- MRO and capacitor replacement projects
Application suitability should always be confirmed against the electrical, thermal and mechanical requirements of the specific circuit.
CD136 PK Frequently Asked Questions
What voltage range does the Jianghai CD136 PK series cover?
The manufacturer rating table covers nominal voltages from 25V to 450V DC.
What is the maximum capacitance available?
The detailed manufacturer rating matrix includes models up to 330,000μF at 25V.
Are two CD136 capacitors with the same voltage and capacitance interchangeable?
Not automatically. ESR, rated ripple current, case dimensions, terminal arrangement and mounting style must also be checked.
What is the rated load life?
The CD136 PK series is specified for a 2000-hour load life at 105°C.
Why does ripple-current rating matter?
Ripple current contributes to internal capacitor heating. A replacement with insufficient ripple-current capability can operate at higher internal temperature and may have reduced service life.
Can Apexon Supply help identify a CD136 capacitor from a label?
Yes. Provide the Jianghai part number, rated voltage, capacitance, dimensions, required quantity and a clear product-label photo whenever available.
CD136 PK B2B Sourcing and RFQ Support
Apexon Supply supports industrial buyers with:
- Exact Jianghai CD136 PK part-number sourcing
- Voltage and capacitance verification
- ESR and ripple-current review
- Case-size and mounting verification
- Datasheet-based comparison
- Replacement and legacy-part sourcing review
- RFQ and bulk quotation
- Proforma invoice preparation
- International delivery coordination
For faster quotation, provide the complete part number, rated voltage, capacitance, required quantity, dimensions and product-label photo.
Request a Jianghai CD136 PK Quote
Independent Supplier Notice
Apexon Supply is an independent industrial parts sourcing supplier and is not presented as an authorized Jianghai distributor or representative. Jianghai trademarks, model numbers, product names, and other identifiers belong to their respective owners and are used solely for product identification, technical reference, and procurement purposes.