EH28-4.0-02-3M5-X Schaffner Integrated Circuit (Other) In Stock
Schaffner EH28-4.0-02-3M5-X is a single-phase EMI filter rated at 4 A and 250 V with IEC approval for through-hole mounting. Operates at 400 Hz for aerospace and military power supply applications requiring conducted emission suppression. Available in stock with worldwide shipping.
- Manufacturer
- Schaffner
- Package
- Other
- Pin Count
- 4
- Lifecycle
- TRANSFERRED
- Datasheet
- EH28-4.0-02-3M5-X Datasheet PDF
- Category
- Integrated Circuit
- Temp Range
- -25.0°C to 100.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Single-phase EMI filter rated 4 A / 250 V with 400 Hz operating frequency for aerospace-grade power filtering
- IEC-approved design meeting international electromagnetic compatibility (EMC) standards for conducted emission attenuation
- Through-hole mounting in a compact 22.9 mm height package enabling easy integration into power supply PCBs
Applications
The EH28-4.0-02-3M5-X is designed for conducted EMI suppression in single-phase 400 Hz power systems used in avionics, military equipment, and ground support electronics. Rated at 4 A and 250 V, it filters high-frequency noise from AC power lines to protect sensitive downstream circuits from conducted interference. Its IEC approval and through-hole mount make it straightforward to integrate into EMC-compliant power supply board designs.
Specifications
| Pbfree Code | Yes |
| YTEOL | 8 |
| Approvals | IEC |
| Filter Type | SINGLE PHASE EMI FILTER |
| Height | 22.9mm |
| Mounting Type | THROUGH HOLE MOUNT |
| Operating Frequency | 400Hz Hz |
| Rated Current | 4A |
| Rated Voltage | 250V |
| Package | Other |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Country of Origin | Thailand |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What are the voltage, current, and frequency ratings of the EH28-4.0-02-3M5-X EMI filter?
The EH28-4.0-02-3M5-X is rated for 250 V AC, 4 A continuous current, and an operating frequency of 400 Hz. These ratings are specifically tailored for single-phase 400 Hz aerospace and military power distribution systems, where standard 50/60 Hz filters are not optimized for effective attenuation.
Which PCB assembly method is required for EH28-4.0-02-3M5-X, and what height clearance is needed?
The EH28-4.0-02-3M5-X uses through-hole mounting, requiring drilled PCB holes and wave soldering or hand solder assembly. The component height is 22.9 mm above the PCB surface, so the enclosure design must allow at least 23 mm clearance above the board to accommodate the filter body without mechanical interference.
For an avionics power supply board, why is a 400 Hz rated filter like EH28-4.0-02-3M5-X preferred over a standard 50 Hz part?
Avionics and military power systems use 400 Hz AC distribution rather than the 50/60 Hz found in commercial grids, because 400 Hz reduces transformer and motor weight significantly. A filter rated and optimized for 400 Hz, like EH28-4.0-02-3M5-X with its 4 A and 250 V ratings and IEC approvals, provides correct impedance characteristics and attenuation at the actual operating frequency, while a 50 Hz rated filter would exhibit different and potentially inadequate performance in a 400 Hz system.
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