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SMD Diodes

Melf Diodes
MELFs have metallised terminals at each end of a cylindrical body. MELF components are designed to fit the same footprints as flat components i.e.: 0805 (.08" x .05") and the 0603 (.06" x .03").

Below is a diagram for the SOD-80 package, also known as LL-34 or DO-213AA.

SOD80 Package diagram
MELF package L=4.9mm D=2.5mm
mini-MELF (SOD80C) L=3.5mm D=1.6mm


(MELF/SOD-80) Colour banded types

Cathode		Diode type :
Colour Band.

Black 			BAS32, BAS45, BA682, BA683, BAV105, LL4148,
			LL4150, LL4151, LL4153, LL4448, BB241, BB249
Black Brown 		LL4148, LL914
Black Orange		LL4150, BB219
Brown Green 		LL300
Brown Black 		LL4448
Red 			BA682
Red Orange 		BA683
Red Green 		BA423L
Red White 		LL600
Orange Yellow	LL3595
Yellow			BZV55, BZV80, BZV81 (zeners)
Green 			BAV105, BB240
Green Black 		BAV100
Green Brown 		BAV101
Green Red 		BAV102
Green Orange		BAV103
Gray 			BAS81, BAS82, BAS83, BAS85, BAS86
White 			BB219
White Green 		BB215

Vishay/General Semiconductor Mini-MELF diodes

CATHODE		Mini MELF Device Type
BAND

Black			General purpose
Yellow			Switching
Green			Schottky
Blue			Zener

CATHODE		MELF Device Type
BAND

Black			Zener
Green			Schottky

 


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