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E12 series — Edexcel GCSE Design and Technology Definition

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Design and Technology
Key terms
E12 series

GCSE Design and Technology · key term

E12 series

Definition

A series of 12 preferred resistor values in each factor-of-ten range, traditionally associated with $\pm10\%$ tolerance.

Used by Edexcel

How each exam board covers it

Edexcel GCSE Design and Technology · 1DT0

Specification 5.5.1 · Paper 1

Revise: Component Stock Forms and Types

Edexcel Design and Technology past papers

Related key terms

Component value
Power rating
Printed circuit board (PCB)
Rating
Surface-mount technology (SMT)

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Through-hole component