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108CKH016M Equivalent & Substitute Parts
Part Overview
The Cornell Dubilier 108CKH016M is a 1000 µF, 16 V aluminum electrolytic capacitor in radial, can package configuration. This component is designed for bypass and decoupling applications with an operating temperature range of -40°C to 105°C and a rated lifetime of 2000 hours at 105°C. The part is currently active in production and ROHS3 compliant.
Equivalent and substitute parts are necessary when the original component becomes unavailable, when design requirements demand enhanced performance characteristics such as extended lifetime or higher ripple current handling, or when application-specific certifications such as AEC-Q200 automotive qualification are required.
Substiute Parts
Key Parameters
| Parameter | Value | Unit |
|---|---|---|
| Capacitance | 1000 | µF |
| Voltage - Rated | 16 | V |
| Tolerance | ±20 | % |
| ESR @ 120Hz | 265.3 | mOhm |
| Lifetime @ 105°C | 2000 | Hrs |
| Operating Temperature Range | -40 to 105 | °C |
| Ripple Current @ 120 Hz | 720 | mA |
| Ripple Current @ 100 kHz | 1.008 | A |
| Lead Spacing | 5.00 | mm |
| Case Diameter | 10.00 | mm |
| Height - Seated (Max) | 21.50 | mm |
| Mounting Type | Through Hole | - |
| Package / Case | Radial, Can | - |
| RoHS Status | ROHS3 Compliant | - |
Substitute Part Grouping Explanation
Substitution of the 108CKH016M is determined by strict adherence to the following electrical and mechanical parameters:
Primary Substitution Criteria:
- Capacitance: 1000 µF (exact match required)
- Voltage Rating: 16 V (exact match required for direct substitution; 25 V rated parts are upgrades)
- Tolerance: ±20% (exact match required)
- Polarization: Polar (exact match required)
- Lead Spacing: 5.00 mm (exact match required)
- Case Diameter: 10.00 mm (exact match required)
- Mounting Type: Through Hole (exact match required)
- Package / Case: Radial, Can (exact match required)
Secondary Performance Parameters (Allowable Variation):
- ESR: Lower values are acceptable; higher values require engineering evaluation
- Lifetime @ 105°C: Equal or greater values are acceptable
- Operating Temperature Range: Equal or extended ranges are acceptable
- Ripple Current: Equal or greater values are acceptable
- Height - Seated: Variation within mechanical envelope constraints
Substitute parts are organized into two categories: direct equivalents (matching 16 V rating) and upgrades (25 V rated parts with enhanced performance characteristics).
Parameter Comparison
| Part Number | Manufacturer | Series | Capacitance (µF) | Voltage (V) | Tolerance (%) | ESR @ 120Hz (mOhm) | Lifetime @ 105°C (Hrs) | Temp Range (°C) | Ripple @ 120Hz (mA) | Ripple @ 100kHz (A) | Height (mm) | Status |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 108CKH016M | Cornell Dubilier | CKH | 1000 | 16 | ±20 | 265.3 | 2000 | -40 to 105 | 720 | 1.008 | 21.50 | Active |
| 108KXM016M | Cornell Dubilier | KXM | 1000 | 16 | ±20 | 265.3 | 4000 | -55 to 105 | 1092 | 1.82 | 22.00 | Active |
| UPS1C102MPD | Nichicon | UPS | 1000 | 16 | ±20 | — | 2000 | -55 to 105 | 870 | 1.0 | 22.00 | Not For New Designs |
| 16RX301000M10X20 | Rubycon | RX30 | 1000 | 16 | ±20 | — | 2000 | -40 to 130 | 720 | 0.960 | 22.00 | Active |
| 16YXF1000MEFC10X20 | Rubycon | YXF | 1000 | 16 | ±20 | — | 7000 | -40 to 105 | 1125 | 1.5 | 21.50 | Not For New Designs |
| 16YXG1000MEFC10X20 | Rubycon | YXG | 1000 | 16 | ±20 | — | 5000 | -40 to 105 | 840 | 1.4 | 21.50 | Not For New Designs |
| 16ZL1000MEFC10X20 | Rubycon | ZL | 1000 | 16 | ±20 | — | 4000 | -40 to 105 | 1092 | 1.82 | 22.00 | Last Time Buy |
| 25JXF1000MEFC10X20 | Rubycon | JXF | 1000 | 25 | ±20 | — | 6000 | -55 to 105 | 894 | — | 22.00 | Active |
| 25YXJ1000M10X20 | Rubycon | YXJ | 1000 | 25 | ±20 | — | 10000 | -40 to 105 | 1050 | 1.4 | 22.00 | Active |
| 25ZLH1000MEFC10X20 | Rubycon | ZLH | 1000 | 25 | ±20 | — | 10000 | -40 to 105 | 1350 | 2.25 | 22.00 | Active |
| 25ZLJ1000M10X20 | Rubycon | ZLJ | 1000 | 25 | ±20 | — | 10000 | -40 to 105 | 1500 | 2.5 | 22.00 | Active |
Engineering Selection Recommendations
Direct Equivalents (16 V Rated):
The 108KXM016M (Cornell Dubilier, KXM series) is the primary direct equivalent. It maintains identical capacitance, voltage rating, tolerance, and ESR specifications while offering extended lifetime (4000 hours at 105°C versus 2000 hours) and expanded operating temperature range (-55°C to 105°C). This part is Active in production status and suitable for new designs.
The 16RX301000M10X20 (Rubycon, RX30 series) is an Active direct equivalent with AEC-Q200 automotive qualification. It is specified for automotive applications with extended operating temperature to 130°C. This part is suitable for new designs requiring automotive-grade components.
The 16ZL1000MEFC10X20 (Rubycon, ZL series) is a direct equivalent with 4000-hour lifetime at 105°C and enhanced ripple current handling. However, this part carries Last Time Buy status and should not be selected for new designs.
The UPS1C102MPD (Nichicon, UPS series) is a direct equivalent with matching lifetime specification. This part carries Not For New Designs status and should be used only for legacy system maintenance or repair applications.
The 16YXF1000MEFC10X20 and 16YXG1000MEFC10X20 (Rubycon, YXF and YXG series) are direct equivalents with extended lifetimes (7000 and 5000 hours respectively). Both carry Not For New Designs status and are suitable only for legacy applications.
Upgrade Options (25 V Rated):
The 25ZLJ1000M10X20 (Rubycon, ZLJ series) is an Active upgrade option with 25 V rating, 10000-hour lifetime at 105°C, and superior ripple current handling (1500 mA at 120 Hz, 2.5 A at 100 kHz). This part is suitable for applications requiring enhanced performance margin and extended service life.
The 25ZLH1000MEFC10X20 (Rubycon, ZLH series) is an Active upgrade option with 25 V rating, 10000-hour lifetime at 105°C, and high ripple current capability (1350 mA at 120 Hz, 2.25 A at 100 kHz). This part is suitable for high-ripple-current applications.
The 25YXJ1000M10X20 (Rubycon, YXJ series) is an Active upgrade option with 25 V rating and 10000-hour lifetime at 105°C. This part is suitable for general-purpose applications requiring extended operational life.
The 25JXF1000MEFC10X20 (Rubycon, JXF series) is an Active upgrade option with 25 V rating and 6000-hour lifetime at 105°C. This part is suitable for applications requiring higher voltage margin with moderate lifetime extension.
Compliance and Certifications:
All listed parts are ROHS3 compliant and REACH unaffected. The 16RX301000M10X20 carries AEC-Q200 automotive qualification and is the only part suitable for automotive applications requiring this certification.
Frequently Asked Questions (FAQ)
Q: Can I substitute the 108CKH016M with a 25 V rated part?
A: Yes. A 25 V rated capacitor is electrically compatible in circuits designed for 16 V operation. The higher voltage rating provides additional safety margin and does not degrade circuit performance. However, physical dimensions must remain within the mechanical envelope constraints of the original design. The 25 V parts listed (25ZLJ1000M10X20, 25ZLH1000MEFC10X20, 25YXJ1000M10X20, 25JXF1000MEFC10X20) all maintain the same 10.00 mm case diameter and 5.00 mm lead spacing as the original part.
Q: What is the difference between direct equivalents and upgrades?
A: Direct equivalents maintain the same 16 V voltage rating as the original 108CKH016M. Upgrades are 25 V rated parts that provide higher voltage margin and typically offer extended lifetime and improved ripple current handling. Both categories maintain identical capacitance (1000 µF), tolerance (±20%), lead spacing (5.00 mm), case diameter (10.00 mm), and mounting type (through hole, radial can).
Q: Why should I avoid parts marked "Not For New Designs"?
A: Parts designated "Not For New Designs" are in end-of-life status and may have limited availability or supply continuity. These parts should be used only for maintenance, repair, or legacy system support where the original part number must be maintained. For new product development, select parts with Active production status.
Q: What does "Last Time Buy" status mean?
A: Last Time Buy status indicates that the manufacturer has announced end-of-production for this part. Existing inventory may be available for a limited period, but no new production runs are planned. This part should not be selected for new designs. The 16ZL1000MEFC10X20 carries this status.
Q: How do I select between the 25 V upgrade options?
A: Selection depends on ripple current requirements. The 25ZLJ1000M10X20 offers the highest ripple current capability (1500 mA at 120 Hz, 2.5 A at 100 kHz) and is suitable for high-ripple-current applications. The 25ZLH1000MEFC10X20 provides high ripple current (1350 mA at 120 Hz, 2.25 A at 100 kHz) with slightly lower impedance. The 25YXJ1000M10X20 and 25JXF1000MEFC10X20 offer moderate ripple current handling and are suitable for general-purpose applications.
Q: Is the 16RX301000M10X20 suitable for automotive applications?
A: Yes. The 16RX301000M10X20 carries AEC-Q200 automotive qualification and is specified for automotive applications. It is the only part in this list with automotive certification. It maintains the same 1000 µF, 16 V specifications as the original part while offering extended operating temperature to 130°C.
Q: What is the significance of ESR (Equivalent Series Resistance)?
A: ESR affects the capacitor's ability to handle ripple current and its high-frequency performance. Lower ESR values indicate better performance in high-frequency applications and reduced heat generation under ripple current stress. The original 108CKH016M specifies 265.3 mOhm ESR at 120 Hz. The 108KXM016M maintains this ESR value while offering extended lifetime. Parts without specified ESR values require evaluation based on ripple current and impedance specifications.
Q: Can I use these parts interchangeably in existing designs?
A: Direct equivalents (16 V rated parts) are interchangeable with the 108CKH016M provided that physical dimensions remain within the mechanical envelope. All listed parts maintain 10.00 mm case diameter and 5.00 mm lead spacing. Height variation (21.50 mm to 22.00 mm) is within typical PCB design tolerances. Upgrade parts (25 V rated) are also physically compatible but provide higher voltage margin. Verify that circuit board layout and component placement accommodate the maximum height specification of 22.00 mm for upgraded parts.
Q: What is the difference between ripple current at 120 Hz and 100 kHz?
A: Ripple current specifications at different frequencies reflect the capacitor's performance under different operating conditions. Low-frequency ripple current (120 Hz) is typical for power supply applications with line-frequency ripple. High-frequency ripple current (100 kHz) is typical for switching power supplies and high-frequency converter applications. The 108CKH016M is rated for 720 mA at 120 Hz and 1.008 A at 100 kHz. Upgrade parts generally offer higher ripple current capability at both frequencies.
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