How do the onsemi onsemi 2SA1 Series variants differ?

onsemi 2SA1 Series part numbers differ by case, current - collector (Ic), current - collector cutoff and DC current gain (hFE) (Min) @ ic, vce. Use the selection guide above to pick by case.

How many onsemi onsemi 2SA1 Series part numbers are listed?

45 onsemi onsemi 2SA1 Series part numbers are listed, each with specifications and a datasheet where available.

onsemi 2SA1 Series

45 variants · onsemi

About the onsemi onsemi 2SA1 Series series

The onsemi onsemi 2SA1 Series series groups 45 related part numbers, each listed with full specifications, a datasheet where available, and an RFQ option. The listed variants share a common transistor type of PNP. Variants differ by case, current - collector (Ic) and current - collector cutoff, so you can match the exact case your application requires using the selection guide below.

Select a variant by

Case: SC-75, SOT-416 · TO-264-3, TO-264AA
Current - collector (Ic): 17 A · 100 mA
Current - collector cutoff: 5µA (ICBO) · 500nA (ICBO)
DC current gain (hFE) (Min) @ ic, vce: 55 @ 1A, 5V · 80 @ 1A, 5V · 120 @ 1mA, 6V
Frequency: 30MHz · 140MHz
Mounting type: Surface Mount · Through Hole
Operating temperature: -50°C ~ 150°C (TJ) · -50°C~150°C(TJ) · 150°C (TJ)
Package: Tape & Reel (TR); Cut Tape (CT) · Tube

Variant comparison

Parameter	2SA1943OTU	2SA1943RTU	2SA1774T1G
Case	TO-264-3, TO-264AA	TO-264-3, TO-264AA	SC-75, SOT-416
Current - collector (Ic)	17 A	17 A	100 mA
Current - collector cutoff	5µA (ICBO)	5µA (ICBO)	500nA (ICBO)
DC current gain (hFE) (Min) @ ic, vce	80 @ 1A, 5V	55 @ 1A, 5V	120 @ 1mA, 6V
Frequency	30MHz	30MHz	140MHz
Mounting type	Through Hole	Through Hole	Surface Mount
Operating temperature	-50°C ~ 150°C (TJ)	-50°C~150°C(TJ)	150°C (TJ)
Package	Tube	Tube	Tape & Reel (TR); Cut Tape (CT)

Shared specifications

Transistor type: PNP

Request a quote on any onsemi 2SA1 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 2SA1 Series variants differ?: onsemi 2SA1 Series part numbers differ by case, current - collector (Ic), current - collector cutoff and DC current gain (hFE) (Min) @ ic, vce. Use the selection guide above to pick by case.
How many onsemi onsemi 2SA1 Series part numbers are listed?: 45 onsemi onsemi 2SA1 Series part numbers are listed, each with specifications and a datasheet where available.
How do I get pricing and lead time for onsemi onsemi 2SA1 Series?: Request a quote (RFQ) for any onsemi 2SA1 Series part number and we confirm price, availability and lead time per line — including end-of-life and hard-to-find variants.