BC856A/B, BC857A/B/C, BC858A/B/C
250mW, PNP Small Signal Transistor
Small Signal Transistor
SOT-23
3 Collector
A
F
2 Emitter
1 Base
B
E
Features
Epitaxial planar die construction
Surface device type mounting
C
D
Moisture sensitivity level 1
Matte Tin(Sn) lead finish with Nickel(Ni) underplate
Pb free version and RoHS compliant
Green compound (Halogen free) with suffix on
packing code and prefix on date code
Unit (mm) Unit (inch)
Dimensions
Min Max Min Max
Mechanical Data
A
Case : SOT- 23 small outline plastic package 2.80 3.00 0.110 0.118
B
Terminal: Matte tin plated, lead free., solderable 1.20 1.40 0.047 0.055
per MIL-STD-202, Method 208 guaranteed
C
0.30 0.50 0.012 0.020
High temperature soldering guaranteed: 260C/10s D
1.80 2.00 0.071 0.079
Weight : 0.008gram (approximately) E
2.25 2.55 0.089 0.100
F 0.90 1.20 0.035 0.043
Ordering Information Suggested PAD Layout
Part No.
Package Packing Marking
0.95
SOT-23 BC856A RF 3K / 7" Reel 3A
0.037
SOT-23 BC856B RF 3K / 7" Reel 3B
SOT-23 BC857A RF 3K / 7" Reel 3E
SOT-23 BC857B RF 3K / 7" Reel 3F 2.0
0.079
SOT-23 BC857C RF 3K / 7" Reel 3G
0.9
SOT-23 BC858A RF 3K / 7" Reel 3J
0.035
SOT-23 BC858B RF 3K / 7" Reel 3K
0.8
SOT-23 BC858C RF 3K / 7" Reel 3L
0.031
BC856A RFG
SOT-23 3K / 7" Reel 3A
BC856B RFG
SOT-23 3K / 7" Reel 3B
BC857A RFG
SOT-23 3K / 7" Reel 3E
BC857B RFG
SOT-23 3K / 7" Reel 3F
BC857C RFG
SOT-23 3K / 7" Reel 3G
SOT-23 BC858A RFG 3K / 7" Reel 3J
SOT-23 BC858B RFG 3K / 7" Reel 3K
SOT-23 BC858C RFG 3K / 7" Reel 3L
Maximum Ratings and Electrical Characteristics
Rating at 25C ambient temperature unless otherwise specified.
Maximum Ratings
Type Number Symbol Value Units
Power Dissipation PD 250 mW
BC856 -80
Collector-Base Voltage V -50 V
BC857 CBO
-30
BC858
BC856 -65
Collector-Emitter Voltage V -45 V
BC857 CEO
BC858 -30
Emitter-Base Voltage V -5 V
EBO
Collector Current IC -0.1 A
Junction and Storage Temperature Range TJ, TSTG -55 to + 150 C
Notes:1. Valid provided that electrodes are kept at ambient temperature
Version : E11BC856A/B, BC857A/B/C, BC858A/B/C
250mW, PNP Small Signal Transistor
Small Signal Transistor
Electrical Characteristics
Type Number Symbol Min Max Units
BC856 -80
V
Collector-Base Breakdown Voltage BC857 I = -10AI = 0 -50 - V
C E (BR)CBO
BC858 -30
BC856 -65
I = -10mA I = 0 V
Collector-Emitter Breakdown Voltage BC857 (BR)CEO -45 - V
C B
-30
BC858
Emitter-Base Breakdown Voltage I = -1AI = 0 V -5 -
E C (BR)EBO V
Collector Cut-off Current V = -30V I = 0 I - -15
CBO nA
CB E
Emitter Cut-off Current V = -5V I =0 I - -0.1
EBO A
EB C
BC856A, BC857A, BC858A 125 250
h
DC current gain BC856B, BC857B, BC858B V = -5V I = -2mA 220 475
CE C FE
BC857C, BC858C 420 800
Collector-Emitter saturation voltage I = -100mA I = -5mA V - -0.65 V
C B CE(sat)
Base-Emitter saturation voltage I = -100mA I = -5mA V - -1.1 V
C B BE(sat)
Transition frequency V = -5V I = -10mA f= 100MHz f 100 - MHz
CE C T
Tape & Reel specification
Item Symbol Dimension(mm)
Carrier width A 3.15 0.10
TSC label
B 2.77 0.10
Carrier length
C 1.22 0.10
Carrier depth
Top Cover Tape
Sprocket hole d 1.50 0.10
Reel outside diameter D 178 1
D1 55 Min
Reel inner diameter
Feed hole width D2 13.0 0.20
Carieer Tape
Sprocke hole position E 1.75 0.10
F 3.50 0.05
Punch hole position
Any Additional Label (If Required)
P0 4.00 0.10
Sprocke hole pitch
Embossment center P1 2.00 0.05
Overall tape thickness T 0.229 0.013
W 8.10 0.20
Tape width
P0
d
Reel width W1 12.30 0.20
P1
T
E
A
F
W
C
B
W1
Direction of Feed
D
D2 D1