Part Numbering System

MDI'S ALPHANUMERIC PART NUMBERING SYSTEM
2 6 9 0   R E - T 0 3 . 3   G F
1 2 3 4   5 6   7 8 9   10   11 12

Positions 1-4

Indicate MDI Series and Output Power

Positions 5, 6

Indicate Grade Level

Code Description
Blank Industrial Grade Unit - Full power output from -55°C to +85°C case temp, linearly derates to zero at 115°C; 24 hours burn-in, 25°C test data only.
EU Engineering Unit - Full power output from -55°C to +85°C case temp, linearly derates to zero at 115°C; 24 hours burn-in, 25°C test data only. EUs are used for evaluation in lab or non-Flight applications.
M Military hardware with full power output from -55°C to +85°C case temp, linearly derates to zero at 115°C
E Military hardware with full output power from -55°C to +125°C case temp, linearly derates to zero at 135°C
R Military/Aerospace hardware 100 KRAD with full power output from -55°C to +85°C case temp, linearly derates to zero at 115°C
RE Military/Aerospace hardware 100 KRAD with full output power from -55°C TO +125°C Case temp, linearly derates to zero at 135°C
S Space hardware 100 KRAD with full output power from -55°C TO +85°C case temp, linearly derates to zero at 115°C
SE Space hardware 100 KRAD with full power output power from -55°C TO +125°C case temp, linearly derates to zero at 135°C
V For MIL-STD-1275 applications; Military/Aerospace hardware with full power output from -55°C to +85°C case temp, linearly derates to zero at 115°C (special order).

Position 7, 8, 9, 10

Indicates output configuration and voltages

Code Description
S Single Output, specified VDC
D Dual Output, ± specified VDC
T Triple Output, +specified VDC main, ± specified VDC dual

Positions 11, 12

Indicate Package

Code Description
Notes: 1) Total Dose for Space Station R, RE, S, SE = 25 KRADS
2) Unless otherwise noted, all data refers to +25°C case temperatures.