BF257CSM4 Semelab Group, BF257CSM4 Datasheet
BF257CSM4
Manufacturer Part Number
BF257CSM4
Description
Silicon Planar Npn High Voltage Transistor In A
Manufacturer
Semelab Group
Datasheet
1.BF257CSM4.pdf
(2 pages)
MECHANICAL DATA
Dimensions in mm (inches)
ABSOLUTE MAXIMUM RATINGS
V
V
V
I
I
P
T
T
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 encourages customers to verify that datasheets are current before placing orders.
Semelab plc.
C
CM
stg
j
CBO
CEO
EBO
tot
PAD 1 = COLLECTOR
PAD 2 = N/C
(0.04 ± 0.008)
1.02 ± 0.20
3
4
Collector - Base Voltage (I
Collector - Emitter Voltage (I
Emitter Base Voltage (I
Collector Current
Collector Peak Current
Total Power Dissipation at T
Storage Temperature
Junction Temperature
(0.22 ± 0.005)
5.59 ± 0.13
Telephone +44(0)1455 556565. Fax +44(0)1455 552612.
E-mail:
(0.08 ± 0.008)
1
2.03 ± 0.20
sales@semelab.co.uk
LCC3
2
(0.009)
0.23
PAD 3 = EMITTER
PAD 4 = BASE
rad.
(0.01 ± 0.001)
0.25 ± 0.03
C
= 0)
(0.055 ± 0.006)
E
1.40 ± 0.15
case
= 0 )
B
Website:
= 0)
£
(0.009)
0.23
50°C
min.
http://www.semelab.co.uk
SILICON PLANAR NPN HIGH
CERAMIC SURFACE MOUNT
VOLTAGE TRANSISTOR IN A
FEATURES
• High Voltage
• Ceramic Surface Mount
• Screening Options Available
PACKAGE
-55 to 200°C
BF257CSM4
100mA
200mA
200°C
160V
160V
5W
5V
Document Number 2666
Issue 1
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BF257CSM4 Summary of contents
Page 1
... PAD 3 = EMITTER PAD 4 = BASE = 50°C £ case Website: http://www.semelab.co.uk BF257CSM4 SILICON PLANAR NPN HIGH VOLTAGE TRANSISTOR IN A CERAMIC SURFACE MOUNT PACKAGE FEATURES • High Voltage • Ceramic Surface Mount • Screening Options Available 160V 160V 100mA 200mA -55 to 200° ...
Page 2
... 30mA I = 6mA 30mA I = 10V 15mA V = 10V 30V 1MHz Website: http://www.semelab.co.uk BF257CSM4 max 30°C/W max 175°C/W Min. Typ. Max. 160 160 Document Number 2666 Unit — MHz pF Issue 1 ...