Difference between revisions of "DEC part number"
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| Line 10: | Line 10: | ||
| 11 || [[Diode]]s | | 11 || [[Diode]]s | ||
|- | |- | ||
| − | | 12 || | + | | 12 || Mechanical and electro-mechanical items ([[connector]]s, [[connector|pins]], bearings, belts, fans, etc) |
|- | |- | ||
| 13 || [[Resistor]]s | | 13 || [[Resistor]]s | ||
| Line 18: | Line 18: | ||
| 16 || [[Transformer]]s and [[inductor]]s | | 16 || [[Transformer]]s and [[inductor]]s | ||
|- | |- | ||
| − | | 17 || [[ | + | | 17 || Wire and [[fiber optic]] cables |
|- | |- | ||
| 18 || [[Crystal]]s and other oscillators | | 18 || [[Crystal]]s and other oscillators | ||
| Line 27: | Line 27: | ||
|- | |- | ||
| 23 || Fixed memory chips ([[Read-only memory|ROMs]], etc) | | 23 || Fixed memory chips ([[Read-only memory|ROMs]], etc) | ||
| + | |- | ||
| + | | 24 || Fiber-optic components | ||
|- | |- | ||
| 30 || [[Core memory]] stacks, major components | | 30 || [[Core memory]] stacks, major components | ||
Revision as of 03:00, 1 January 2021
DEC part numbers are generally of the form 'ww-xxxxx-yy zzzz' (sometimes the first hyphen is omitted). DEC had a system for their part numbers, such that looking at a part number will generally tell you (based on the leading two-digit field, the 'class code') what kind of part it is: chip, cable, etc. The next field is a 'basic identifier', then comes a 'variation identifier'; the final, optional, field is the 'revision identifier'. .
This table lists the major class codes:
| Class | Type |
|---|---|
| 10 | Capacitors |
| 11 | Diodes |
| 12 | Mechanical and electro-mechanical items (connectors, pins, bearings, belts, fans, etc) |
| 13 | Resistors |
| 15 | Transistors |
| 16 | Transformers and inductors |
| 17 | Wire and fiber optic cables |
| 18 | Crystals and other oscillators |
| 19 | Bipolar integrated circuits |
| 21 | MOS chips (CPUs, etc |
| 23 | Fixed memory chips (ROMs, etc) |
| 24 | Fiber-optic components |
| 30 | Core memory stacks, major components |
| 36 | Paper tape, punched cards, labels |
| 50 | Printed circuit boards |
| 52 | Pulse transformers |
| 54 | Assemblies (circuit cards, display panels, etc) |
| 70 | Cables/harnesses |
| 74 | 'Manufactured non-electrical parts' (includes decals, etc) |
| 90 | Fastener hardware (nuts, bolts, screws, washers, ties etc) |
| 91 | Hook up wire and tubing |
