Small-signal switching diode

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Small Switching Diode

A small-signal switching diode is a kind of semiconductor diode specially designed and manufactured for switching "on" and "off" on circuits. It takes less time to change from on to off or vice versa than ordinary diodes.

The time from off (high resistance) to on (low resistance) of a small-signal switching diode is called turn-on time. The time from on to off is called reverse recovery time. The sum of the two is called switching time. Generally, the reverse recovery time is longer than the turn-on time, so only the reverse recovery time is given on the operating parameters of the switching diode.

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Product Name	JJM Package	PD_Max (mW)	IO_Max (mA)	VR_Max (V)	VF_Max (V)	@ IF (mA)	IR_Max (μA)	@ VR (V)	Trr_Max (ns)
BAV99 DataSheet	SOT-23	350	215	75	1.25	150	2.5	75	4
1N4148W DataSheet	SOD-123	400	150	100	1.25	150	1	75	4
1N4148WS DataSheet	SOD-323	200	150	75	1.25	150	1	75	4
1N4148WT DataSheet	SOD-523	200	150	75	1.25	150	1	75	4
BAS21 DataSheet	SOT-23	250	200	200	1.25	200	0.1	200	50
BAV21W DataSheet	SOD-123	410	200	200	1.25	200	0.1	200	50
BAV21WS DataSheet	SOD-323	250	200	200	1.25	200	0.1	200	50