CD239 Series High Current Capacitor

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In the capacitor industry, the material deformation and corrosion at high temperature are two serious problems, many engineers cope with these issues by choosing CD239 series high current capacitor. As a kind of anticorrosive capacitor, the CD239 capacitor can work at 85℃ for 3000 hours, and 105℃ for 2000 hours

At high temperature, the size change is mainly affected by the creeping strength. This means that we can choose better material to extend the product's service life, and choose thinner material to lower the cost. Following these theories, our CD239 series high current capacitor has acquired excellent performance.

The CD239 high temperature capacitor features high rated ripple current and desirable reliability. It is typically suitable for being used as capacitor for frequency conversion current converter, power switch capacitor, welding machine capacitor, television capacitor, and so on.

Technical Features

Item	Feature
Operating temperature	-25℃～ 85℃	-25℃～ 105℃
Rated operational voltage	250-450V (DC)
Rated capacitance	220-1000μF
Rated capacitance allowance	±20℃ (20℃, 120Hz)
Leakage current	I≤0.02CU (μA) or 3mA (the smaller one, determined in 1 min)
Loss tangent (Tgδ)	Tgδ≤0.15
Ripple current allowance	See the forms below
Durability	At 85℃ or 105℃, exert rated voltage on the capacitor to achieve rated ripple current for 3000 hours or 2000 hours. Then after 24 hours of restoring, the capacitance changing rate is equal to or less than ±20% of the initial value
	Tgδ≤120% standard value
	leakage current I≤200% standard value
High temperature storage	85℃ or 105℃, 96 hour storage with zero load, then recovers for 16 hours
	Capacitance change≤±20% initial value
	Tgδ≤120% standard value
	Leakage current I≤200% standard value

Ripple current correction coefficient Coefficient of frequency

Frequency (Hz)	50	120	500	1K	10-50K
Coefficient	0.8	1	1.05	1-1	1.15

Coefficient of temperature

Temperature (℃)	≤65	85	105
Coefficient	1.3 (1.5)	1.0 (1.7)	1

Standards: GB/T 5993-2003/1EC 60384-4:1998

The table of rated capacitance, rated voltage, surge current, rated ripple current, and dimensions.

UR (v)	250			350			400			450
SR (v)	300			400			450			500
CR (μF)	DXL	ir (A)		DXL	ir (A)		DXL	ir (A)		DXL	ir (A)
CR (μF)	mm	85℃	105℃	mm	85℃	105℃	mm	85℃	105℃	mm	85℃	105℃
220							30×40	1.35	1.25	30×40	1.40	1.10
330				30×40	1.80	1.25	30×40	1.80	1.40	30×50	1.70	1.30
470	30×40	1.80	1.60	30×50	2.10	1.50	35×50	2.15	1.80	35×50	2.30	1.70
560	30×40	2.00	1.70	35×50	2.40	1.70	35×50	2.30	2.05	35×60	2.50	1.80
680	30×50	2.35	2.00	35×50	2.70	2.10	35×60	2.45	2.15
820	30×50	2.70	2.30	35×60	2.90	2.40
1000	30×60	3.20	2.80

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