IR HiRel Product Families



66W -120W Total Output Power 270 Vin +3.3 Vout Single DC-DC Standard Converter in an AFL Package. DLA Number 5962-99553



Input-Output isolation

Active inrush current limiting

Fixed switching frequency

Common frequency synchronization

Soft start

Short-circuit and overload protection

Input undervoltage lockout

Duty cycle limiting over-voltage protection

Output turn-on/turn off sequencing

Operation over -55°C to +125°C without de-rating

Magnetically-coupled feedback

TTL-compatible on/off command

Low profile, hermetically-sealed packages

Copper I/O pins

Reliability screening option

Class H and Class K processes (IAW MIL-PRF-38534)


Total Output Power (W)66W - 120W
Input Voltage Min (V)160
Input Voltage Max (V)400
Output Voltage Single (V)+ 3.3
DLA QualifiedSMD
Qual LevelStandard
DLA Drawing5962-99553
Base Part StatusActive
Typical Efficiency (%)74
IOUT Single (A)+ 20

Aerospace and Defense

IR's standard and custom power management solutions for commercial aircraft and defense applications are used in programs such as Airbus and Boeing airliners, the F16, the Eurofighter, the F35 Joint Strike Fighter and the Abrams M1A2 tank.

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IR has a long history of providing high-reliability, radiation hardened power management solutions for space flight with products used in over 2000 space programs from launchers to satellites to space exploration vehicles.

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Part # AFL273R3SW/ESB

66W -120W Total Output Power 270 Vin +3.3 Vout Single DC-DC Standard Converter in an AFL Package. DLA Number 5962-99553

Packaging OptionsPart NumberStatusStandard Pack Quantity
Lead Form Option Y Screening Level ESAFL27003R3SY/ESCALL_FACTORY1
Case X Screening Level HBAFL273R3SX/HBBCALL_FACTORY1
Case X Screening Level ESAFL273R3SX/ESBACTIVE1
A AFL27003R3S with Standard PackagingAFL27003R3SCALL_FACTORY1
Case Y Screening Level ESAFL273R3SY/ESBCALL_FACTORY1
Qualified Part Number similar to AFL27003R3S5962-99553ACTIVE1
Case W Screening Level HBAFL273R3SW/ESBACTIVE1
Lead Form Option Z Screening Level ESAFL27003R3SZ/ESCALL_FACTORY1

Package Support