F4804A POWER ONE, F4804A Datasheet - Page 2

• Manufacturer Part Number: F4804A
• Description: DC-DC CONV INP FILTER 4A SMD
• Manufacturer: POWER ONE
• Series: Fr

Specifications of F4804A

• Filter Type: Power Line
• Voltage - Rated: 80V
• Current: 4A
• Mounting Type: Surface Mount
• Termination Style: Surface Mount (SMD,SMT)
• Operating Temperature Min Deg. C: -40C
• Operating Temperature Max Deg. C: 85C
• Rad Hardened: No
• Input Voltage Range: 0 V to 80 V
• Input Voltage (nominal): 48 V
• Package / Case Size: 21.59 mm x 19.05 mm x 6.78 mm
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Inductance: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• Other names: Q4089730

F4804A Applications
Differential and Common Mode filtering for dc-dc
converters:
 Telecommunications
 Data communications
 Distributed Power Solutions
Description
The F4804A Input Filter minimizes the conducted and radiated emissions generated by switch mode DC-DC
converters, and allows board designs utilizing DC-DC converters to meet stringent FCC and EN55022 Class B
conducted emissions requirements. Filter F4804A is a fully compatible replacement for F4804, with improved
electrical and thermal characteristics.
Unlike most available off-the-shelf filter modules, the F4804A, in addition to common mode noise reduction
components, is provisioned with a differential LC-filter stage, which virtually guarantees compliance with
conducted noise standards across the frequency range from 150 kHz to 30 MHz, including fundamental switching
frequency and its harmonics. Test results show headroom of 15-20 dB for conducted noise quasi-peak levels, in
relation to Class B requirements.
F4804A filter is designed specifically for distributed power solutions in conjunction with DC-DC converters. Low
profile and small size (only 0.75 sq. in.) in a surface mount package helps the designer save system board real
estate, and simplifies the layout.
A single filter can be used with multiple converters, and is capable of providing up to 4 A to the converter input bus
at 85 °C. When used as specified within this data sheet, these filters do not require airflow and/or derating at high
temperatures.
.
MCD10059 Rev. 1.1, 21-Jan-10
F & FC Series DC-DC Converter Input Filters
Page 2 of 41
F4804A, 0-80V, 4 Amps, SMT Mount
Features
 RoHS lead free solder and lead solder exempted
 Maximum current 4 A with no derating
 Maximum operating input voltage 80 V
 100 V 100 ms transient withstand capability
 Differential LC-filter stage
 Surface mounted design
 Small footprint – only 0.75 sq. in.
 Low profile: 0.267” [6.78 mm] maximum
 Low weight: 0.13 oz [3.66 g]
 Operation over -40 °C to 85 °C ambient
 No airflow required up to 85 °C
 Enables dc-dc converter compliance with
 UL60950 recognition in U.S. & Canada, and
products are available
temperature range
EN55022 and FCC Class B requirements
conducted emissions
DEMKO certification per IEC/EN60950
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