Reference Data

To be found here is a source of typical engineering reference data useful for electronic engineering. Some of this stuff I really do remember, but others of it just fall through the cracks. Anyway, it's here for your delectation.

Resistor colour codes

No reference would be complete without a resistor colour codes primer;

Color Significant figures Multiplier Tolerance Temp. Coefficient (ppm/K) Black 0 1 N/A 250 Brown 1 10 ±1% 100 Red 2 100 ±2% 50 Orange 3 1K N/A 15 Yellow 4 10K (±5%) 25 Green 5 100K ±0.5% 20 Blue 6 1M ±0.25% 10 Violet 7 10M ±0.1% 5 Gray 8 100M ±0.05% 1 White 9 1G N/A N/A Gold N/A 0.1 ±5% N/A Silver N/A 0.01 ±10% N/A None N/A N/A ±20% N/A

Resistor preferred value tables

When it comes to fleshing out the design data, you really have to design around preferred values;

Signal size conversion factors

It's always the way. The one you want, is the one you can't remember! It's either that or, you remembered correctly but now you're thinking about it, perhaps it's wrong. In any case, have no fear, they're here;