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Through-hole indicator LED · Kingbright WP7113 family

LED (5 mm) Internal Circuitry

Explore the internal circuitry and functional stages of LED (5 mm).

Inside LED (5 mm)

Anvil, post, chip, bond wire and the epoxy lens.

Cutaway of a 5 mm LED: the cathode anvil holds the chip in a reflector cup, a gold bond wire joins it to the anode post, the epoxy lens focuses the light; inset of the PN junction emitting photons.
Functional cutaway; proportions simplified.

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Select a stage to see its role and connections

Anvil and reflector cup

The larger internal lead, on the cathode side, carries the chip in a small reflector cup.

Bond wire

A fine gold wire connects the top of the chip to the anode post.

Lens

The domed epoxy lens shapes the beam: a narrow lens gives a small viewing angle and a bright centre.

Manufacturer reference

Kingbright · WP7113 product specifications · red DSAF2430 V.13A, green DSAF2427 V.11B, yellow DSAF2443 V.11B, blue DSAG3481 V.18B, white DSAI6407 V.6B

Official PDF datasheet Circuit reference

Component view