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Ohm Bands

SMD code 27A — 1.87 Ω

A surface-mount resistor has no bands. This one is an EIA-96 marking: code 27 is 1.87 in the E96 series, A multiplies by 1. Parts marked this way are usually ±1%.

27A

reads as

1.87 Ω

The same part, in bands

The through-hole version of 1.87 Ω carries 5 colour bands instead.

187×0.01±1%
Brown1Grey8Violet7Silver×0.01Brown±1%

Everything about 1.87 Ω — power ratings, what ten cost, what is in stock.

How much it can take

Across itDissipatedSmallest package that copes
5 V13.4 Wno standard part — needs a power resistor or a heatsink
12 V77 Wno standard part — needs a power resistor or a heatsink

What you can actually get

Parts made

11

at this value

Common packages

0805 · 1210 · 1206 · 0603

Codes you will mistake it for

One character apart from 27A. On a 0402 part these are a fraction of a millimetre of printing — worth a second look before you solder.