BF257 Semelab Group, BF257 Datasheet
BF257
Manufacturer Part Number
BF257
Description
Bipolar Npn Transistor
Manufacturer
Semelab Group
Datasheet
1.BF257.pdf
(1 pages)
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
BF257
Manufacturer:
A208937
Quantity:
530
Part Number:
BF257
Manufacturer:
TI/德州仪器
Quantity:
20 000
Semelab Plc reserves the right to change test conditions, parameter limits and package dimensions without notice. Information furnished by Semelab is believed
to be both accurate and reliable at the time of going to press. However Semelab assumes no responsibility for any errors or omissions discovered in its use.
Semelab plc.
Dimensions in mm (inches).
Parameter
V
I
h
f
P
* Maximum Working Voltage
This is a shortform datasheet. For a full datasheet please contact sales@semelab.co.uk.
C(CONT)
t
FE
CEO
D
*
1 – Emitter
6.10 (0.240)
6.60 (0.260)
(0.500)
12.70
min.
0.74 (0.029)
1.14 (0.045)
0.71 (0.028)
0.86 (0.034)
Test Conditions
@ 10/30m (V
(0.035)
0.41 (0.016)
0.53 (0.021)
0.89
Telephone +44(0)1455 556565. Fax +44(0)1455 552612.
E-mail:
TO39 (TO205AD)
dia.
max.
2 – Base
45°
PINOUTS
sales@semelab.co.uk
5.08 (0.200)
1
7.75 (0.305)
8.51 (0.335)
8.51 (0.34)
9.40 (0.37)
typ.
2
3
CE
/ I
(0.100)
3 – Collector
2.54
C
)
Website:
http://www.semelab.co.uk
Hermetically sealed TO39
Bipolar NPN Device in a
Min.
25
Bipolar NPN Device.
V
I
All Semelab hermetically sealed products
can be processed in accordance with the
requirements of BS, CECC and JAN,
JANTX, JANTXV and JANS specifications
Metal Package.
C
CEO
= 0.1A
= 160V
Typ.
90M
Max.
160
0.1
0.8
BF257
Generated
Units
1-Aug-02
Hz
W
V
A
-
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