The ALH306K251C064 is an AC filter capacitor for harsh environments, rated for 250 Vac and 30 µF with ±10% tolerance. It features a plastic UL94V-0 case, tin-plated copper terminals, and dimensions of 57.5 mm length, 45 mm height, and 30 mm width. The part operates from -40 °C to 105 °C, with voltage derating above 85 °C at 1.35% per °C. It meets AEC-Q200 qualifications and IEC 61071 standards, with a thermal resistance of 14.4 °C/W at 70 °C hot spot, rated for 14 A rms current at 10 kHz and a peak dv/dt of 25 V/µs. The capacitor has an expected life of 100,000 hours at 70 °C and passes 1500 hours at 85 °C / 85% RH under rated voltage. Insulation resistance is ≥30,000 MΩ·µF at 100 Vdc.
AC Filter Capacitors for Harsh Environments 30µF 250V
30µF Film Capacitor 250V Polypropylene (PP) Radial - 4 Leads
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.
| Cornell Dubilier | New Yorker Electronics Co., Inc. | DigiKey | Richardson RFPD | |
|---|---|---|---|---|
| Product Category | Capacitors | Capacitors | Capacitors | Capacitors |
| Product Number | ALH306K251C064 | 2002-ALH306K251C064 | 338-ALH306K251C064-ND | ALH306K251C064 |
| Product Name | Film Paper Film Capacitors | Film Capacitors | Film Capacitors | Film Capacitor |
| 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 | 30 microF | 30 microF | 30 microF | 30 microF |
