News & Events

Cincon Releases MF10/MF20D Modules, New 10A/20A Input EMI Filter for MIL-STD-461

Share on

May

#Product Press Release#DC-DC Converter

Cincon has launched the MF10/MF20D EMI filter modules, designed to meet the stringent requirements of MIL-STD-461 (F, G) for defense ground and airborne applications. These modules streamline compliance by providing a ready-made solution for EMI.

Engineered to reduce both common mode and differential mode noise in DC-DC converter systems, the MF10 and MF20D support maximum current ratings of 10A and 20A (with derating) and accept input voltages up to 75V—making them ideal for 24V and 28V bus systems commonly used in defense and aerospace environments.

With a wide operating case temperature range of -55°C to +110°C, these filter modules are also well-suited for distributed power architecture, telecommunications, battery-operated devices, and various industrial applications.

Key Features:

● 10A and 20A Filter Module, simplifying the System EMC Filter
● Input range up to 75V
● Up to 100V/1sec. Surge Protection
● Industrial Compact Eighth Brick & Quarter Brick Package
● 1500Vdc I/O to Case Isolation
● Operating Case Temperature -55 to 110°C
● Compliant to MIL-STD-461(F, G)
● Shock & Vibration MIL-STD 810F Compliant
● 5000m Operating Altitude

E25011-0

Applications:

● Avionics systems (e.g., airborne communication equipment)
● Ground defense vehicle power management
● High-EMI-sensitivity industrial equipment
● Harsh Environments

To meet the requirements of the MIL-STD-461 standard, Cincon provides recommended circuits and test board layouts for DC-DC brick modules, ECLB and B case product series. As an example, we use the CQB150W-24S24 model. Below are its reference circuit and corresponding test board layout:

E25011-1

MF10/20D075P For Half Brick, Quarter Brick and Eighth Brick Connection Circuit

E25011-2

MF20D075P For Half Brick, Quarter Brick and Eighth Brick PCB layout top view

E25011-3

MF20D075P For Half Brick, Quarter Brick and Eighth Brick PCB layout bottom view

Components value:

Input Filter Module: MF10D075P/MF20D075P
DC-DC	C1	C2	C3	C4, C5	CY1, CY3	CY2, CY4	BD1,BD2, BD3,BD4	CY5, CY6
CQB50W8-36S24	220uF/100V	0.47uF/100V	47uF/100V	10uF/100V	0.01uF/3KV	4700pF/3KV	Bead Core	0.068uF/350Vac
CQB75W8-36S24
CEB100W-24S24-F
ECLB60W-24D12
ECLB75W-24D12
CQB150W-24S24

Note:

● C1: NIPPON CHEMI-CON URZ Series aluminum capacitor or equivalent
● C2: 1206 MLCC Capacitor
● C4, C5: 1206 MLCC Capacitor
● CY1, CY2: 1812 MLCC Capacitor
● CY3, CY4: 1808 MLCC Capacitor
● CY5/CY6: TDK Y2 DIP capacitor or equivalent
● C3: NIPPON CHEMI-CON UVY Series aluminum capacitor or equivalent
● BD1, BD2, BD3, BD4: HFZ3216PF-121T60, TAI-TECH

Using the reference circuit and test board, the MF20D075P in combination with the CQB150W-24S24 successfully meets the CE102 requirements in EMI testing:

MF20D075P (EMI Conducted MIL-STD-461 CE102 of CQB150W-24S24)

E25011-4

The MF10/20D050P features an operating case temperature range of -55°C to +110°C. To ensure reliable performance, appropriate derating or cooling measures must be applied during operation. The case temperature should never exceed 110°C under any condition.

The following graph shows the derating curve for the MF10D075P and MF20D075P:

E25011-5

For more reference materials, please refer to the MF10/20D datasheet or contact Cincon for further information.