IR HiRel Product Families



Hi-Rel DC-DC Rad-Hard Triple Converter in a M3GB package



Total Dose > 200 kRads(Si), typically usable to > 300 kRads(Si)

SEE Hardened to LET up to 82 MeV.cm2/mg

Internal EMI filter; Converter Capable of meeting MIL-STD-461C CE03

Low Weight, < 100 grams

Magnetically Coupled Feedback

18V to 50V DC Input Range

Up to 35W Output Power

Main Output Isolated from Auxiliary Outputs

Typical Efficiency - to 78%

-55°C to +125°C Operating Temperature Range

100mOhms at 100VDC Isolation

Under-Voltage Lockout

Short Circuit and Overload Protection

Adjustable Output Voltage

External Inhibit

Greater Than 6,000,000 hour MTBF


Total Dose kRad (Si)200
Total Output Power (W)35W
Typical Efficiency (%)78
Operating Temperature125°C
Qual LevelRadiation Hardened
IOUT Dual (A)+/-1.62
Input Voltage Min (V)18
Input Voltage Max (V)50
Base Part StatusPreliminary
IOUT Single (A)5.3
Output Voltage Dual (V)+/-5.3
Output Voltage Single (V)+3.3
See (MeV-cm2/mg)82
Input Voltage (V)28

Part # M3GB2803R305T/CKC

Hi-Rel DC-DC Rad-Hard Triple Converter in a M3GB package

Packaging OptionsPart NumberStatusStandard Pack Quantity
Screening Level K Gold Dipped LeadsM3GB2803R305T/CKCPRELIMINARY
Standard PartM3GB2803R305TPENDING

Package Support