How do the onsemi onsemi SMMBT Series variants differ?

onsemi SMMBT Series part numbers differ by current - collector (Ic), DC current gain (hFE) (Min) @ ic, vce, frequency and power - max. Use the selection guide above to pick by current - collector (Ic).

How many onsemi onsemi SMMBT Series part numbers are listed?

11 onsemi onsemi SMMBT Series part numbers are listed, each with specifications and a datasheet where available.

onsemi SMMBT Series

11 variants · onsemi

About the onsemi onsemi SMMBT Series series

The onsemi onsemi SMMBT Series series groups 11 related part numbers, each listed with full specifications, a datasheet where available, and an RFQ option. The listed variants share a common case of TO-236-3, SC-59, SOT-23-3, mounting type of Surface Mount and operating temperature of -55°C ~ 150°C (TJ). Variants differ by current - collector (Ic), DC current gain (hFE) (Min) @ ic, vce and frequency, so you can match the exact current - collector (Ic) your application requires using the selection guide below.

Select a variant by

Current - collector (Ic): 200 mA · 500 mA
DC current gain (hFE) (Min) @ ic, vce: 100 @ 10mA, 1V · 100 @ 100mA, 1V
Frequency: 50MHz · 250MHz
Power - max: 225 mW · 300 mW
Vce saturation (Max) @ ib, ic: 250mV @ 10mA, 100mA · 400mV @ 5mA, 50mA
Voltage - collector emitter breakdown: 40 V · 80 V

Variant comparison

Parameter	SMMBT3906LT1G	SMMBTA56LT3G
Current - collector (Ic)	200 mA	500 mA
DC current gain (hFE) (Min) @ ic, vce	100 @ 10mA, 1V	100 @ 100mA, 1V
Frequency	250MHz	50MHz
Power - max	300 mW	225 mW
Vce saturation (Max) @ ib, ic	400mV @ 5mA, 50mA	250mV @ 10mA, 100mA
Voltage - collector emitter breakdown	40 V	80 V

Shared specifications

Case: TO-236-3, SC-59, SOT-23-3
Mounting type: Surface Mount
Operating temperature: -55°C ~ 150°C (TJ)
Package: Tape & Reel (TR); Cut Tape (CT)
Transistor type: PNP

Request a quote on any onsemi SMMBT Series part number and we confirm price, availability and lead time per line — including end-of-life and allocation-constrained variants.

Frequently asked questions

How do the onsemi onsemi SMMBT Series variants differ?: onsemi SMMBT Series part numbers differ by current - collector (Ic), DC current gain (hFE) (Min) @ ic, vce, frequency and power - max. Use the selection guide above to pick by current - collector (Ic).
How many onsemi onsemi SMMBT Series part numbers are listed?: 11 onsemi onsemi SMMBT Series part numbers are listed, each with specifications and a datasheet where available.
How do I get pricing and lead time for onsemi onsemi SMMBT Series?: Request a quote (RFQ) for any onsemi SMMBT Series part number and we confirm price, availability and lead time per line — including end-of-life and hard-to-find variants.