Low-pass electronic filter Mil-COTS 28 DC

passivefor DC/DC convertersfor power supplies

Overview
SynQor supplies EMI filters for MIL‑COTS 28 Vdc DC‑DC converters. These filters provide high differential‑mode and common‑mode attenuation, incorporate stabilizing bulk capacitors and damping resistors, and use an all‑ceramic design (no electrolytic capacitors). They provide high‑voltage isolation between chassis and input/output and are available in multiple package sizes and current ratings for system‑level integration.

Operational Features

• Low DC resistance
• Differential‑mode attenuation
• Common‑mode attenuation
• Bulk capacitance for input stabilization of downstream converters
• No electrolytic capacitors (all‑ceramic design)
• High‑voltage isolation between chassis and input/output

Product Series Models (summary)
MCOTS-F-28-P-DM | Input: 28V (-40 to 40) | Output: 28V | Output Current: 10A | Package: Demi‑brick | Datasheet: MCOTS-F-28-P-DM Datasheet
MCOTS-F-28-P-HP | Input: 28V (-40 to 40) | Output: 28V | Output Current: 70A | Package: Half‑brick | Datasheet: MCOTS-F-28-P-HP Datasheet
MCOTS-F-28-P-QT | Input: 28V (-40 to 40) | Output: 28V | Output Current: 30A | Package: Quarter‑brick | Datasheet: MCOTS-F-28-P-QT Datasheet
MCOTS-F-28-T-HE | Input: 28V (-40 to 100) | Output: 28V | Output Power: 600W | Output Current: 40A | Package: Half‑brick | Datasheet: MCOTS-F-28-T-HE Datasheet
MCOTS-F-28-T-HP | Input: 28V (-40 to 100) | Output: 28V | Output Current: 40A | Package: Half‑brick | Datasheet: MCOTS-F-28-T-HP Datasheet
MCOTS-F-28-T-HT | Input: 28V (-40 to 100) | Output: 28V | Output Current: 30A | Package: Half‑brick | Datasheet: MCOTS-F-28-T-HT Datasheet
MCOTS-F-28E-P-DM | Input: 28V (-70 to 70) | Output: 28V | Output Current: 10A | Package: Demi‑brick | Datasheet: MCOTS-F-28E-P-DM Datasheet

Operating / Input Highlights

• Continuous input ranges (examples): -40 to +40 V; -40 to +100 V; -70 to +70 V
• Transient input voltage examples (varies by model): 50 V, 100 V, 210 V
• Operating temperature examples: -55 to +100 °C

Technical specifications

• Series name: Mil‑COTS 28 DC Filters
• Nominal input voltage: 28 Vdc
• Input ranges (by model): -40 to +40 V; -40 to +100 V; -70 to +70 V
• Transient input voltage (varies by model): typical values 50 V, 100 V, 210 V
• Output voltage: 28 V
• Output current (examples by model): 10 A, 30 A, 40 A, 70 A
• Output power: up to 600 W (model dependent)
• Package sizes: Quarter‑brick, Demi‑brick, Half‑brick
• Temperature range: example -55 to +100 °C (model dependent)
• Design: All ceramic (no electrolytic capacitors)
• Includes: stabilizing bulk capacitors and damping resistors for system stability
• Attenuation: High differential‑mode and common‑mode EMI attenuation
• Isolation: High‑voltage isolation between chassis and input/output
• Datasheets: Available for each model (see model‑specific datasheet files)