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 - Full power output from -55°C to +85°C case temp, linearly derates to zero at 115°C; 160 hour burn-in, -55°C, +25°C and +85°C test data.
E Military Hardware - Full power output from -55°C to +125°C case temp, linearly derates to zero at 135°C; 160 hour burn-in, -55°C, +25°C and +125°C test data.
L Space Hardware 45kRad - Full power output from -55°C to +85°C case temp, linearly derates to zero at 115°C; 160 hour burn-in, -55°C, +25°C and +85°C test data.
LE Space Hardware 45kRad - Full power output from -55°C to +125°C Case temp, linearly derates to zero at 135°C; 160 hour burn-in, -55°C, +25°C and +125°C test data.
S Space Hardware 100kRad - Full power output from -55°C to +85°C case temp, linearly derates to zero at 115°C; 160 hour burn-in, -55°C, +25°C and +85°C test data.
SE Space Hardware 100kRad - Full power output from -55°C to +125°C case temp, linearly derates to zero at 135°C; 160 hour burn-in, -55°C, +25°C and +125°C test data.
V Military Hardware - For MIL-STD-1275 applications; with full power output from -55°C to +85°C case temp, linearly derates to zero at 115°C; 160 hour burn-in, -55°C, +25°C and +85°C test data. (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 (see chart below)

Notes:
Total Dose for Space Station S & SE = 25 kRads
Unless otherwise noted, all data refers to +25°C case temperatures.

Case Style Alpha Designator Seal Type Mounting Flange Flat/Thru
1 None Solder PCB No Thru
2 None Solder PCB No Thru
3 F Solder PCB Yes Thru
4 None Solder PCB Yes Thru
5 G - H - I - J Seam Weld PCB No Thru
6 GF - HF - IF - JF Seam Weld PCB Yes Thru
7 LF Seam Weld PCB Yes Thru
8 UF - VF - WF - XF Seam Weld Chassis Yes Flat
9 ZF Seam Weld Chassis Yes Flat
10 PA - PB - PC Solder PCB/Stud No Thru
11 PD Solder PCB/Stud No Thru
12 PE Seam Weld PCB/Stud No Thru
13 MF Seam Weld PCB Yes Thru
14 D Seam Weld PCB No Thru
15 TF Seam Weld Chassis Yes Flat

Note: Refer to Specific product data sheets for availability.