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BF245 - the legend is leaving, the successor comes

BF245, a JFET transistor produced for many decades by several companies, has joined the list of discontinued components. However an equivalent replacement exists in an SMT package and its name is BF545.

BF245 in a TO-92 package has been one of the first transistors, which were mass-used. That´s why it´s no wonder, that the BF 245 is nowadays familiar to every experienced technician. As a transistor with a very high input resistance (tens of MOhm) and a relativlely low noise, it´s gained a global popularity and served to many beginning technicians at an assembly of their first radio-receivers. There are many other FET transistors on the market nowadays, thus the usage of BF245 is substantially smaller. Moreover, a majority of electronics is produced with SMT components, what probably was one of more reasons why all main producers have discontinued the BF245.

Advantages / Features:

  1. high input impedance and gain
  2. low cut-off voltage
  3. low leakage current (fA)
  4. suitable for impedance converters and VHF circuits
However, BF245 is still an interesting transistor, that´s why it will be henceforward available in a SOT23 SMT package as the BF545. It is available in 3 groups A, B, C - sorted according to IDSS at VGS=0. Directly from our stock are available BF545A, BF545B and BF545C from company NXP (originally Philips). Detailed information can be found in the BF545 datasheet, as well as in the RF Manual document.

In case of interest, please contact us at info@soselectronic.com.

Date of publishing 2012-10-02
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On-line information from SOS electronic
Updated 2014-10-31 03:29:52
PictureType
Description
Order number, Kind of Product
Manufacturer (Brand)In stock
*External stock
(Pending)
Price excl.VAT
Currency: 
BF545A

BF545A

Transistor JFET N 25mA/30V SOT23
Order number: 126298, S, RoHS
More info: BF545A_BF545B_BF545C.pdf
Field-effect transistors low-power
NXP
100 pcs
-
(-)
5+/0.3980 EUR
10+/0.2960 EUR
100+/0.2590 EUR
BF545B

BF545B

Transistor JFET N 25mA/30V SOT23
Order number: 126300, S, RoHS
More info: BF545A_BF545B_BF545C.pdf
Field-effect transistors low-power
NXP
79 pcs
-
(-)
10+/0.2820 EUR
20+/0.2730 EUR
BF545C

BF545C

Transistor JFET N 25mA/30V SOT23
Order number: 126302, S, RoHS
More info: BF545A_BF545B_BF545C.pdf
Field-effect transistors low-power
NXP
47 pcs
-
(-)
5+/0.3980 EUR
10+/0.3200 EUR
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