ALH474K401A022 is an AC filter capacitor for harsh environments, rated for 400 Vac and 470 nF capacitance with ±10% tolerance. It measures 32.0 mm in length, 20 mm in height, and 11.0 mm in thickness, with a terminal pitch of 27.5 mm and a terminal diameter of 0.8 mm. The part features tin-plated copper leads, a UL94V-0 plastic case, and dry resin insulation, and is AEC-Q200 qualified. It operates from -40 °C to 105 °C with a derating of 1.35% per °C above 85 °C, and has an ESR of 18.6 mΩ, a peak dv/dt rating of 50 V/µs, and a maximum rms current of 7 A at 10 kHz and 70 °C hot spot temperature. Its insulation resistance is ≥30,000 MΩ×µF at 100 Vdc, and it meets IEC 61071 standards with UL recognition E128034. Life expectancy is 100,000 hours at 70 °C hot spot under rated voltage.
AC Filter Capacitors for Harsh Environments 0.47µF 400V
Designed for harsh environments, Cornell Dubilier’s new ALH series of AC rated filter capacitors offer 50% greater life than competitive 85/85 THB-rated film capacitors. The Temperature, Humidity at Bias (THB) test exposes parts to the harsh conditions of 85 C at 85% relative humidity with rated voltage applied. CDE’s testing has been validated for 1,500 hours while competitors validate their series for 1,000 hours under the same conditions. This demanding test simulates the extremely harsh operating conditions encountered in many commercial and industrial inverter applications that can cause conventional film capacitors to fail early due to moisture penetration.
The ALH Series is optimized for AC harmonic filtering on the input and output of inverter circuits. Capacitance ranges from 0.22 to 50 uF at 160-450 Vac, 50/60Hz with high rms current ratings for handling higher-ordered harmonics.
The series offers self-healing, metalized polypropylene-film in a robust board-mount package that also meets the rigors of automotive AEC Q200 testing. The solvent-resistant, box-style plastic case and resin-seal are both UL/cUL 94V-0 recognized for construction designs, with tin-plated copper RoHS compliant terminations. Their superior construction makes these capacitors ideally suited for solar, wind, UPS, EV, and other inverters applications that may be subjected to wide-ranging environmental conditions.
0.47µF Film Capacitor 400V Polypropylene (PP) Radial
| Cornell Dubilier | New Yorker Electronics Co., Inc. | Richardson RFPD | DigiKey | |
|---|---|---|---|---|
| Product Category | Capacitors | Capacitors | Capacitors | Capacitors |
| Product Number | ALH474K401A022 | 2002-ALH474K401A022 | ALH474K401A022 | 338-ALH474K401A022-ND |
| Product Name | Film Paper Film Capacitors | Film Capacitors | Film Capacitor | Film Capacitors |
| Configuration / Form Factor | Leaded Capacitor | Leaded Capacitor | ||
| Technology | Film Capacitors | Film Capacitors | Film Capacitors | |
| Operating Temperature | -40 to 105 C (-40 to 221 F) | -40 to 105 C (-40 to 221 F) | -40 to 105 C (-40 to 221 F) | |
| Electrostatic Capacitors | Paper | Polypropylene | ||
| Capacitance Range | 0.4700 microF | 0.4700 microF | 0.4700 microF | 0.4700 microF |
