|  |   | Overview of Transistor wideband NPN up to 10 GHz - 
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 			|  |  |  |  |  |  |  |  |  |  | | fT / IC curve
 (see  fig.1) (SEE FIG.1)
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 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  		|  BFC505 | SOT353 | 3 | 18 | 3.5 |  | NPN | 8 | 500 | 7.3 | (19) |  | 900 |  | -20 | 1 | LNA, Buffer&VCO |  |  |  |  |  |  |  | 900 | 2000 |  | 1.8 | 3.5 |  |  		|  BFC520 | SOT353 | 3 | 70 | 1.3 |  | NPN | 8 | 1000 | 7 | (20) |  | 900 |  | -18 | 5 | LNA, Mixer, Buffer & VCO |  |  |  |  |  |  |  | 900 |  |  | 1.3 |  |  |  		|  BFE505 | SOT353 |  | 18 | 1.9 |  | NPN | 8 | 500 | 9 | (19) |  | 900 |  |  |  | Mixer |  |  |  |  |  |  |  | 900 | 2000 |  | 1.2 | 1.9 |  |  		|  BFE520 | SOT353 |  | 70 | 1.9 |  | NPN | 8 | 1000 | 9 | (20) |  | 900 |  |  |  | Mixer |  |  |  |  |  |  |  | 900 | 2000 |  | 1.1 | 1.9 |  |  		|  BFG10 | SOT143 |  | 250 |  |  | NPN | 8 | 250 |  | (23) | 7 4 | 1900 |  |  |  |  |  |  |  |  |  | 7 |  | 1900 |  |  |  |  |  |  		|  BFG10/X | SOT143 |  | 250 |  |  | NPN | 8 | 250 |  | (23) | 7 4 | 1900 |  |  |  |  |  |  |  |  |  | 7 |  | 1900 |  |  |  |  |  |  		|  BFG10W/X | SOT343 |  | 250 |  |  | NPN | 10 | 400 |  | (23) | 10 ³ 4 | 900 |  |  |  |  |  |  |  |  |  | 10 | 7 4 | 900 | 1900 |  |  |  |  |  		|  BFG11 | SOT143 |  | 500 |  |  | NPN | 8 | 400 |  | (24) | 5 4 | 1900 |  |  |  |  |  |  |  |  |  | 5 |  | 1900 |  |  |  |  |  |  		|  BFG11/X | SOT143 |  | 500 |  |  | NPN | 8 | 400 |  | (24) | 5 4 | 1900 |  |  |  |  |  |  |  |  |  | 5 |  | 1900 |  |  |  |  |  |  		|  BFG11W/X | SOT343 |  | 500 |  |  | NPN | 8 | 760 |  | (24) | 6 ³ 4 | 1900 |  |  |  |  |  |  |  |  |  |  | 6 4 | 1900 | 1900 |  |  |  |  |  		|  BFG25A/X | SOT143 |  | 6.5 | 1.8 |  | NPN | 5 | 32 | 5 | (18) | 18 | 1000 |  |  |  |  |  |  |  |  |  | 18 |  | 1000 |  |  | 1.8 |  |  |  		|  BFG25AW | SOT343 |  | 6.5 | 2 |  | NPN | 5 | 500 | 5 | (18) | 16 | 1000 |  |  |  |  |  |  |  |  |  | 16 | 8 | 1000 | 2000 |  | 2 |  |  |  		|  BFG25AW/X | SOT343 |  | 6.5 | 2 |  | NPN | 5 | 500 | 5 | (18) | 16 | 1000 |  |  |  |  |  |  |  |  |  | 16 | 8 | 1000 | 2000 |  | 2 |  |  |  		|  BFG505 | SOT143 | 6 | 18 | 1.9 | 4 | NPN | 15 | 150 | 9 | (19) | 20 | 900 |  | 10 | 5 | LNA, Mixer, Buffer & VCO |  |  |  |  |  | 20 | 13 | 900 | 2000 |  | 1.6 | 1.9 |  |  		|  BFG505/X | SOT143 | 6 | 18 | 1.9 | 4 | NPN | 15 | 150 | 9 | (19) | 20 | 900 |  | 10 | 5 | LNA, Mixer, Buffer & VCO |  |  |  |  |  | 20 | 13 | 900 | 2000 |  | 1.6 | 1.9 |  |  		|  BFG505W | SOT343 | 6 | 18 | 1.9 | 4 | NPN | 15 | 500 | 9 | (19) |  | 900 |  | 10 | 5 | LNA, Mixer, Buffer & VCO | 900 & 1900 | 17 | 1.2 | 10 | 1.9 | 19 | 12 | 900 | 2000 | 10 | 1.6 | 1.9 |  |  		|  BFG505W/X | SOT343 | 6 | 18 | 1.9 | 4 | NPN | 15 | 500 | 9 | (19) | 19 | 900 |  | 10 | 5 | LNA, Mixer, Buffer & VCO |  | 17 |  |  |  | 19 | 12 | 900 | 2000 | 10 | 1.6 | 1.9 |  |  		|  BFG505W/XR | SOT343 | 6 | 18 | 1.9 | 4 | NPN | 15 ¹ | 500 | 9 | (19) | 19 | 900 |  | 10 | 5 |  |  |  |  |  |  | 19 | 12 |  |  |  |  |  |  |  		|  BFG520 | SOT143 | 6 | 70 | 1.9 | 17 | NPN | 15 | 300 | 9 | (20) | 19 | 900 | 275 | 26 | 20 | LNA, Mixer, Buffer & VCO |  | 17 |  |  |  | 19 | 13 | 900 | 2000 | 10 | 1.6 | 1.9 | 275 |  		|  BFG520/X | SOT143 | 6 | 70 | 1.9 | 17 | NPN | 15 | 300 | 9 | (20) |  | 900 | 275 | 26 | 20 | LNA, Mixer, Buffer & VCO |  | 17 |  |  |  | 19 | 13 | 900 | 2000 | 10 | 1.6 | 1.9 | 275 |  		|  BFG520/XR | SOT143 | 6 | 70 | 1.9 | 17 | NPN | 15 ¹ | 300 | 9 | (20) |  | 900 | 275 | 26 | 20 |  |  |  |  |  |  | 19 | 13 |  |  |  |  |  |  |  		|  BFG520W | SOT343 | 6 | 70 | 1.85 | 17 | NPN | 15 | 500 | 9 | (20) |  | 900 | 275 | 26 | 20 | LNA, Mixer, Buffer & VCO | 900 & 1900 | 17 | 1.2 | 10 | 1.9 | 17 | 11 | 900 | 2000 | 10 | 1.6 | 1.85 | 275 |  		|  BFG520W/X | SOT343 | 6 | 70 | 1.85 | 17 | NPN | 15 | 500 | 9 | (20) |  | 900 | 275 | 26 | 20 | LNA, Mixer, Buffer & VCO |  | 17 |  |  |  | 17 | 11 | 900 | 2000 | 10 | 1.6 | 1.85 | 275 |  		|  BFG540 | SOT143 | 8 | 120 | 2.1 | 21 | NPN | 15 | 500 | 9 | (21) |  | 900 | 500 | 34 | 40 |  |  |  |  |  |  | 18 | 11 | 900 | 2000 |  | 1.9 | 2.1 | 500 |  		|  BFG540/X | SOT143 | 8 | 120 | 2.1 | 21 | NPN | 15 | 500 | 9 | (21) |  | 900 | 500 | 34 | 40 |  |  |  |  |  |  | 18 | 11 | 900 | 2000 |  | 1.9 | 2.1 | 500 |  		|  BFG540/XR | SOT143 | 8 | 120 | 2.1 | 21 | NPN | 15 ¹ | 500 | 9 | (21) |  | 900 | 500 | 34 | 40 |  |  |  |  |  |  | 18 | 11 |  |  |  |  |  |  |  		|  BFG540W | SOT343 | 8 | 120 | 2.1 | 21 | NPN | 15 | 500 | 9 | (21) |  | 900 | 500 | 34 | 40 |  |  |  |  |  |  | 16 | 10 | 900 | 2000 |  | 1.9 | 2.1 | 500 |  		|  BFG540W/X | SOT343 | 8 | 120 | 2.1 | 21 | NPN | 15 | 500 | 9 | (21) |  | 900 | 500 | 34 | 40 |  |  |  |  |  |  | 16 | 10 | 900 | 2000 |  | 1.9 | 2.1 | 500 |  		|  BFG540W/XR | SOT343 | 8 | 120 | 2.1 | 21 | NPN | 15 ¹ | 500 | 9 | (21) |  | 900 | 500 | 34 | 40 |  |  |  |  |  |  | 16 | 10 |  |  |  |  |  |  |  		|  BFG541 | SOT223 | 8 | 120 | 2.1 | 21 | NPN | 15 | 650 | 9 | (21) |  | 900 | 500 | 34 | 40 |  |  |  |  |  |  | 15 | 9 | 900 | 2000 |  | 1.9 | 2.1 | 500 |  		|  BFG590 | SOT143 |  | 200 |  |  | NPN | 15 | 400 | 5 | (22) |  | 900 |  |  |  |  |  |  |  |  |  | 13 | 7.5 | 900 | 2000 |  |  |  |  |  		|  BFG590/X | SOT143 |  | 200 |  |  | NPN | 15 | 400 | 5 | (22) |  | 900 |  |  |  |  |  |  |  |  |  | 13 | 7.5 | 900 | 2000 |  |  |  |  |  		|  BFG590W | SOT343 | 5 | 200 |  | 21 | NPN | 15 | 500 | 5 | (22) |  | 900 |  |  | 80 |  |  |  |  |  |  | 13 | 7.5 | 900 | 2000 |  |  |  |  |  		|  BFG590W/X | SOT343 | 5 | 200 |  | 21 | NPN | 15 | 500 | 5 | (22) |  | 900 |  |  | 80 |  |  |  |  |  |  | 13 | 7.5 | 900 | 2000 |  |  |  |  |  		|  BFG591 | SOT223 |  | 200 |  |  | NPN | 15 | 2000 | 7 | (22) |  | 900 |  |  |  |  |  |  |  |  |  | 13 | 7.5 | 900 | 2000 |  |  |  |  |  		|  BFM505 | SOT363 | 3-12 | 18 | 1.9 |  | NPN | 8 | 500 | 9 | (19) |  | 900 |  |  |  | LNA, Mixer, Buffer & VCO | 900 & 1900 | 17 | 1.2 | 10 | 1.9 | 17 | 10 | 900 | 2000 | 10 | 1.4 | 1.9 |  |  		|  BFM520 | SOT363 | 3-12 | 70 | 1.9 |  | NPN | 8 | 1000 | 9 | (20) |  | 900 |  |  |  | LNA, Mixer, Buffer & VCO | 900 & 1900 | 17 | 1.2 | 10 | 1.9 | 15 | 9 | 900 | 2000 | 10 | 1.7 | 1.9 |  |  		|  BFQ540 | SOT89 | 8 | 120 | 1.9 |  | NPN | 12 | 1200 | 9 | (21) |  | 900 | 500 |  | 40 |  |  |  |  |  |  |  |  | 900 |  |  | 1.9 |  | 500 |  		|  BFQ621 | SOT172 | 18 | 150 |  |  | NPN | 16 | 800 | 7 | (23) |  | 500 | 1200 |  | 120 |  |  |  |  |  |  | 18.5 |  | 500 |  |  |  |  | 1200 |  		|  BFR505 | SOT23 | 6 | 18 | 1.9 | 4 | NPN | 15 | 150 | 9 | (19) |  | 900 |  | 10 | 5 | LNA, Mixer, Buffer & VCO | 900 & 1900 | 17 | 1.2 | 10 | 1.9 | 17 | 10 | 900 | 2000 | 10 | 1.6 | 1.9 |  |  		|  BFR505T | SOT416 |  | 18 |  |  | NPN |  | 150 | 9 |  |  |  |  |  | 18 |  |  |  |  |  |  | 17 |  | 900 |  |  | 1.2 |  |  |  		|  BFR520 | SOT23 | 6 | 70 | 1.9 | 17 | NPN | 15 | 300 | 9 | (20) |  | 900 |  | 26 | 20 | LNA, Mixer, Buffer & VCO | 900 & 1900 | 17 | 1.2 | 10 | 1.9 | 15 | 9 | 900 | 2000 | 10 | 1.6 | 1.9 |  |  		|  BFR520T | SOT416 |  | 70 |  | 17 | NPN |  | 150 | 9 |  |  |  |  | 26 | 70 |  |  |  |  |  |  | 15 | 9 | 900 | 2000 |  | 1.6 | 1.9 |  |  		|  BFR540 | SOT23 | 8 | 120 | 2.1 | 21 | NPN | 15 | 480 | 9 | (21) |  | 900 | 550 | 34 | 40 |  |  |  |  |  |  | 14 | 7 | 900 | 2000 |  | 1.9 | 2.1 | 550 |  		|  BFS25A | SOT323 |  | 6.5 | 1.8 |  | NPN | 5 | 32 | 5 | (18) |  | 1000 |  |  |  |  |  |  |  |  |  | 13 |  | 1000 |  |  | 1.8 |  |  |  		|  BFS505 | SOT323 | 6 | 18 | 1.9 | 4 | NPN | 15 | 150 | 9 | (19) |  | 900 |  | 10 | 5 | LNA, Mixer, Buffer & VCO | 900 & 1900 | 17 | 1.2 | 10 | 1.9 | 17 | 10 | 900 | 2000 | 10 | 1.6 | 1.9 |  |  		|  BFS520 | SOT323 | 6 | 70 | 1.9 | 17 | NPN | 15 | 300 | 9 | (20) |  | 900 |  | 26 | 20 | LNA, Mixer, Buffer & VCO | 900 & 1900 | 17 | 1.2 | 10 | 1.9 | 15 | 9 | 900 | 2000 | 10 | 1.6 | 1.9 |  |  		|  BFS540 | SOT323 | 8 | 120 | 2.1 | 21 | NPN | 15 | 500 | 9 | (21) |  | 900 |  | 34 | 40 |  |  |  |  |  |  | 14 | 8 | 900 | 2000 |  | 1.9 | 2.1 |  |  		|  BFT25A | SOT23 |  | 6.5 | 1.8 |  | NPN | 5 | 32 | 5 | (18) |  | 1000 |  |  |  |  |  |  |  |  |  | 15 |  | 1000 |  |  | 1.8 |  |  |  		|  PRF947 | SOT323 |  | 50 |  |  | NPN | 10 | 250 | 8.5 |  |  |  |  |  |  |  |  |  |  |  |  | 16 | 10 | 1000 | 2000 |  | 1.5 | 2.1 |  |  		|  PRF949 | SOT416 |  | 50 |  |  | NPN | 10 | 150 | 9 |  |  |  |  |  | 50 |  |  |  |  |  |  | 16 |  | 1000 |  |  | 1.5 |  |  |  		|  PRF957 | SOT323 |  | 100 |  |  | NPN | 10 | 270 | 8.5 |  |  |  |  |  |  |  |  |  |  |  |  | 15 | 9.2 | 1000 | 2000 |  | 1.3 | 1.8 |  |  Copyright © 2000 Royal Philips Electronics All rights reserved. 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 	Notes:	 		VCES		At dim = -60 dB, measured according to DIN45004B, par. 6.3: 3-tone test.		Minimum value.		Power gain Gp.	  Transition frequency as a function of collector current for the five generations of		RF bipolar wideband transistors.
 
	Disclaimer: The purpose of this selection guide is to help you to make a selection of products to consider. We recommend that you completely review our datasheet to confirm the device functionality for your application. This information is for suggestion purposes only. Philips Semiconductors is not responsible for any incorrect or incomplete information.
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