BC856B Datasheet, PDF (5/6 Pages) Rectron Semiconductor – SOT-23 BIPOLAR TRANSISTORS TRANSISTOR(PNP)

BC856B, BC857B, BC858A
1.0
0.7
0.5 ^{D = 0.5}
0.2
0.3
0.2
0.05
0.1
0.1
0.07
0.05
0.03
0.02
0.01
0.1 0.2
0.5
SINGLE PULSE
SINGLE PULSE
P_(pk)
t₁
t₂
DUTY CYCLE, D = t₁/t₂
1.0 2.0
5.0 10 20
50 100 200
t, TIME (ms)
Figure 13. Thermal Response
Z_qJC(t) = r(t) R_qJC
R_qJC = 83.3°C/W MAX
Z_qJA(t) = r(t) R_qJA
R_qJA = 200°C/W MAX
D CURVES APPLY FOR POWER
PULSE TRAIN SHOWN
READ TIME AT t₁
T_J(pk) − T_C = P_(pk) R_qJC(t)
500 1.0 k 2.0 k
5.0 k 10 k
-200
1s
3 ms
-100
-50
T_A = 25°C TJ = 25°C
BC858
-10
BC857
BC856
-5.0
-2.0
-1.0
BONDING WIRE LIMIT
THERMAL LIMIT
SECOND BREAKDOWN LIMIT
-5.0 -10
-30 -45 -65 -100
V_CE, COLLECTOR-EMITTER VOLTAGE (V)
Figure 14. Active Region Safe Operating Area
The safe operating area curves indicate I_C−V_CE lim-
its of the transistor that must be observed for reliable oper-
ation. Collector load lines for specific circuits must fall
below the limits indicated by the applicable curve.
The data of Figure 14 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 13. 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.
ORDERING INFORMATION
Device
Marking
Package
Shipping^†
BC856BWT1G
SBC856BWT1G*
3B
SC−70/SOT−323
(Pb−Free)
3,000 / Tape & Reel
BC857BWT1G
SBC857BWT1G*
3F
SC−70/SOT−323
(Pb−Free)
3,000 / Tape & Reel
BC857CWT1G
NSVBC857CWT1G*
3G
SC−70/SOT−323
(Pb−Free)
3,000 / Tape & Reel
BC858AWT1G
3J
SC−70/SOT−323
(Pb−Free)
3,000 / Tape & Reel
BC858BWT1G
3K
SC−70/SOT−323
(Pb−Free)
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.
*S and NSV Prefix for Automotive and Other Applications Requiring Unique Site and Control Change Requirements; AEC−Q101 Qualified and
PPAP Capable.
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