Product Overview
The Cornell Dubilier Type 401C is a wide-temperature, low-voltage capacitor designed for high-ripple current military and industrial applications. It excels in cold environments, offering full performance down to -55 C. Its exceptionally low ESR makes it ideal for power-supply output applications. The extended cathode foil construction ensures cool operation and efficient heat dissipation regardless of mounting orientation. It provides a better value compared to large snap-in capacitors, with ripple current capabilities exceeding 50 amps at 55 C and ESRs as low as 3.5 m. Capacitance retention is over 90% at -40 C.
Product Attributes
- Brand: Cornell Dubilier
- Product Line: Type 401C
- Construction: Thermal-Pak extended cathode
Technical Specifications
| Specification | Details |
| Capacitance Range | 380 F to 570,000 F |
| Capacitance Tolerance | 20% |
| Rated Voltage | 6.3 to 250 Vdc |
| Operating Temperature Range | -55 C to +105 C |
| DC Leakage Current | 1.5 CV A, 4 mA max, 5 minutes |
| Cold Impedance (-55 C) | Z 3 times impedance at 25 C |
| Ripple Current Multipliers (120 Hz, 85 C) | Refer to datasheet for specific multipliers based on ambient temperature and voltage rating. |
| EIA Ripple Life | 2,000 h at 85 C per EIA IS-749 with 85 C ripple current ( Capacitance 10%, ESR 200% of limit, DCL 100% of limit) |
| Life Test | 4,000 h at 105 C with rated voltage ( Capacitance 10%, ESR 200% of limit, DCL 100% of limit) |
| Shelf Life Test | 500 h at +105 C (capacitance, ESR, and DCL will meet initial requirements) |
| Vibration | 10 to 55 Hz, 0.06 and 10 g max, 2 h in each plane |
| Terminal Options | Straight Leads, Bare can, PVC and Standoffs, Polyester and Standoffs |
| Case Dimensions (Example: AK) | D: 1.375 in (34.93 mm), L MAX: 1.75 in (44.45 mm), C: 0.50 in (12.70 mm), S: 0.175 in (4.45 mm), E: 0.25 in (6.35 mm), F: 0.55 in (13.97 mm) |
| Part Numbering System Example | 401C [Voltage] [Capacitance] [Tolerance] [Terminal Insulation] [Case Code] |
| Catalog Part Number Example | 401C384M7R5EE8 (380000 F, 7.5 Vdc, 20%, PVC and Standoffs, EE Case) |
Notice and Disclaimer: All product drawings, descriptions, specifications, statements, information and data (collectively, the Information) in this datasheet or other publication are subject to change. The customer is responsible for checking, confirming and verifying the extent to which the Information contained in this datasheet or other publication is applicable to an order at the time the order is placed. All Information given herein is believed to be accurate and reliable, but it is presented without any guarantee, warranty, representation or responsibility of any kind, expressed or implied. Statements of suitability for certain applications are based on the knowledge that the Cornell Dubilier company providing such statements (Cornell Dubilier) has of operating conditions that such Cornell Dubilier company regards as typical for such applications, but are not intended to constitute any guarantee, warranty or representation regarding any such matter and Cornell Dubilier specifically and expressly disclaims any guarantee, warranty or representation concerning the suitability for a specific customer application, use, storage, transportation, or operating environment. The Information is intended for use only by customers who have the requisite experience and capability to determine the correct products for their application. Any technical advice inferred from this Information or otherwise provided by Cornell Dubilier with reference to the use of any Cornell Dubilier products is given gratis (unless otherwise specified by Cornell Dubilier), and Cornell Dubilier assumes no obligation or liability for the advice given or results obtained. Although Cornell Dubilier strives to apply the most stringent quality and safety standards regarding the design and manufacturing of its products, in light of the current state of the art, isolated component failures may still occur. Accordingly, customer applications which require a high degree of reliability or safety should employ suitable designs or other safeguards (such as installation of protective circuitry or redundancies or other appropriate protective measures) in order to ensure that the failure of an electrical component does not result in a risk of personal injury or property damage. Although all product-related warnings, cautions and notes must be observed, the customer should not assume that all safety measures are indicated in such warnings, cautions and notes, or that other safety measures may not be required.
2504101957_Cornell-Dubilier-Electronics-401C861M250AH8_C22052509.pdf
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Wide temperature range capacitor Cornell Dubilier Electronics 401C861M250AH8 designed for cold environment Images
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