Product parametric performance is indicated in the Electrical Characteristics for the listed test conditions, unless otherwise noted. Product
performance may not be indicated by the Electrical Characteristics if operated under different conditions.
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2
BC857BTT1G
TYPICAL CHARACTERISTICS
2.0
hFE , NORMALIZED DC CURRENT GAIN
1.5
1.0
0.7
0.5
V
CE
= -10 V
T
A
= 25°C
V, VOLTAGE (VOLTS)
-1.0
-0.9
-0.8
-0.7
-0.6
-0.5
-0.4
-0.3
-0.2
-0.1
V
CE(sat)
@ I
C
/I
B
= 10
-0.5 -1.0 -2.0
-5.0 -10 -20
I
C
, COLLECTOR CURRENT (mAdc)
-50
-100
V
BE(on)
@ V
CE
= -10 V
T
A
= 25°C
V
BE(sat)
@ I
C
/I
B
= 10
0.3
0.2
-0.2
-0.5 -1.0 -2.0
-5.0 -10 -20
-50
I
C
, COLLECTOR CURRENT (mAdc)
-100 -200
0
-0.1 -0.2
Figure 1. Normalized DC Current Gain
Figure 2. “Saturation” and “On” Voltages
-2.0
VCE , COLLECTOR-EMITTER VOLTAGE (V)
θ
VB , TEMPERATURE COEFFICIENT (mV/
°
C)
T
A
= 25°C
-1.6
1.0
-55°C to +125°C
1.2
1.6
2.0
2.4
2.8
-1.2
I
C
=
-10 mA
I
C
= -50 mA
I
C
= -200 mA
I
C
= -100 mA
-0.8
-0.4
I
C
= -20 mA
0
-0.02
-0.1
-1.0
I
B
, BASE CURRENT (mA)
-10 -20
-0.2
-10
-1.0
I
C
, COLLECTOR CURRENT (mA)
-100
Figure 3. Collector Saturation Region
f T, CURRENT-GAIN - BANDWIDTH PRODUCT (MHz)
Figure 4. Base−Emitter Temperature Coefficient
10
C
ib
7.0
T
A
= 25°C
C, CAPACITANCE (pF)
5.0
C
ob
400
300
200
150
100
80
60
40
30
20
-0.5
V
CE
= -10 V
T
A
= 25°C
3.0
2.0
1.0
-0.4 -0.6
-1.0
-2.0
-4.0 -6.0
-10
-20 -30 -40
-1.0
-2.0 -3.0
-5.0
-10
-20
-30
-50
V
R
, REVERSE VOLTAGE (VOLTS)
I
C
, COLLECTOR CURRENT (mAdc)
Figure 5. Capacitances
Figure 6. Current−Gain − Bandwidth Product
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3
BC857BTT1G
r(t), NORMALIZED TRANSIENT THERMAL RESISTANCE
1.0
D = 0.5
0.2
0.1
0.05
0.02
0.01
0.01
SINGLE PULSE
0.001
0.00001
0.0001
0.001
0.01
0.1
t, TIME (s)
1.0
10
100
1000
0.1
Figure 7. Thermal Response
-200
1s
IC, COLLECTOR CURRENT (mA)
-100
-50
T
A
= 25°C
T
J
= 25°C
3 ms
-10
-5.0
BC558
BC557
BC556
BONDING WIRE LIMIT
THERMAL LIMIT
SECOND BREAKDOWN LIMIT
-5.0
-10
-30 -45 -65 -100
V
CE
, COLLECTOR-EMITTER VOLTAGE (V)
The safe operating area curves indicate I
C
−V
CE
limits
of the transistor that must be observed for reliable
operation. Collector load lines for specific circuits must fall
below the limits indicated by the applicable curve.
The data of Figure 8 is based upon T
J(pk)
= 150°C; T
C
or
T
A
is variable depending upon conditions. Pulse curves are
valid for duty cycles to 10% provided T
J(pk)
≤
150°C. T
J(pk)
may be calculated from the data in Figure 7. At high case
or ambient temperatures, thermal limitations will reduce
the power that can be handled to values less than the
limitations imposed by the secondary breakdown.
-2.0
-1.0
Figure 8. Active Region Safe Operating Area
ORDERING INFORMATION
Device
BC857BTT1G
NSVBC857BTT1G*
Package
SOT−416
(PB−Free)
Shipping
†
3,000 / Tape & Reel
†For information on tape and reel specifications, including part orientation and tape sizes, please refer to our Tape and Reel Packaging
Specifications Brochure, BRD8011/D.
*NSV Prefix for Automotive and Other Applications Requiring Unique Site and Control Change Requirements; AEC−Q101 Qualified and PPAP
Capable.
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4
BC857BTT1G
PACKAGE DIMENSIONS
SOT−416 (SC−75)
CASE 463
ISSUE F
−E−
2
3
NOTES:
1. DIMENSIONING AND TOLERANCING PER ANSI
Y14.5M, 1982.
2. CONTROLLING DIMENSION: MILLIMETER.
MILLIMETERS
MIN
NOM MAX
0.70
0.80
0.90
0.00
0.05
0.10
0.15
0.20
0.30
0.10
0.15
0.25
1.55
1.60
1.65
0.70
0.80
0.90
1.00 BSC
0.10
0.15
0.20
1.50
1.60
1.70
INCHES
NOM MAX
0.031 0.035
0.002 0.004
0.008 0.012
0.006 0.010
0.063 0.067
0.031 0.035
0.04 BSC
0.004 0.006 0.008
0.061 0.063 0.065
MIN
0.027
0.000
0.006
0.004
0.059
0.027
e
1
−D−
b
3 PL
0.20 (0.008)
M
D
H
E
0.20 (0.008) E
DIM
A
A1
b
C
D
E
e
L
H
E
C
A
L
A1
SOLDERING FOOTPRINT*
0.356
0.014
1.803
0.071
0.787
0.031
0.508
0.020
1.000
0.039
SCALE 10:1
mm
inches
*For additional information on our Pb−Free strategy and soldering
details, please download the ON Semiconductor Soldering and
Mounting Techniques Reference Manual, SOLDERRM/D.
ON Semiconductor
and
are registered trademarks of Semiconductor Components Industries, LLC (SCILLC). SCILLC owns the rights to a number of patents, trademarks,
copyrights, trade secrets, and other intellectual property. A listing of SCILLC’s product/patent coverage may be accessed at www.onsemi.com/site/pdf/Patent−Marking.pdf. SCILLC
reserves the right to make changes without further notice to any products herein. SCILLC makes no warranty, representation or guarantee regarding the suitability of its products for any
particular purpose, nor does SCILLC assume any liability arising out of the application or use of any product or circuit, and specifically disclaims any and all liability, including without
limitation special, consequential or incidental damages. “Typical” parameters which may be provided in SCILLC data sheets and/or specifications can and do vary in different applications
and actual performance may vary over time. All operating parameters, including “Typicals” must be validated for each customer application by customer’s technical experts. SCILLC
does not convey any license under its patent rights nor the rights of others. SCILLC products are not designed, intended, or authorized for use as components in systems intended for
surgical implant into the body, or other applications intended to support or sustain life, or for any other application in which the failure of the SCILLC product could create a situation where
personal injury or death may occur. Should Buyer purchase or use SCILLC products for any such unintended or unauthorized application, Buyer shall indemnify and hold SCILLC and
its officers, employees, subsidiaries, affiliates, and distributors harmless against all claims, costs, damages, and expenses, and reasonable attorney fees arising out of, directly or indirectly,
any claim of personal injury or death associated with such unintended or unauthorized use, even if such claim alleges that SCILLC was negligent regarding the design or manufacture
of the part. SCILLC is an Equal Opportunity/Affirmative Action Employer. This literature is subject to all applicable copyright laws and is not for resale in any manner.
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“tensymetry”这个词在《韦伯斯特词典》中没有解释,但在医学界却广为人知。由Tensys Medical Systems公司开发的tensymetry是一种使用生物机械、电气、软件工程的专有组合技术。利用这三种强大的技术,你可在手术室内对病人的心跳血压进行精确、连续、实时和非侵入性测量。 该技术结出的果实就是该公司的T-line Tensymeter产品。该产品线的最新进展是去年...[详细]