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BCM857BV; BCM857BS;
BCM857DS
PNP/PNP matched double transistors
Rev. 06 -- 28 August 2009 Product data sheet
1. Product profile
1.1 General description
PNP/PNP matched double transistors in small Surface-Mounted Device (SMD) plastic
packages. The transistors are fully isolated internally.
Table 1. Product overview
Type number Package NPN/NPN Matched version of
NXP JEITA complement
BCM857BV SOT666 - BCM847BV BC857BV
BCM857BS SOT363 SC-88 BCM847BS BC857BS
BCM857DS SOT457 SC-74 BCM847DS -
1.2 Features
I Current gain matching
I Base-emitter voltage matching
I Drop-in replacement for standard double transistors
1.3 Applications
I Current mirror
I Differential amplifier
1.4 Quick reference data
Table 2. Quick reference data
Symbol Parameter Conditions Min Typ Max Unit
Per transistor
VCEO collector-emitter voltage open base - - -45 V
IC collector current - - -100 mA
hFE DC current gain VCE = -5 V; 200 290 450
IC = -2 mA
NXP Semiconductors BCM857BV/BS/DS
PNP/PNP matched double transistors
Table 2. Quick reference data ...continued
Symbol Parameter Conditions Min Typ Max Unit
Per device
hFE1/hFE2 hFE matching VCE = -5 V; [1] 0.9 1 -
IC = -2 mA
VBE1-VBE2 VBE matching VCE = -5 V; [2] - - 2 mV
IC = -2 mA
[1] The smaller of the two values is taken as the numerator.
[2] The smaller of the two values is subtracted from the larger value.
2. Pinning information
Table 3. Pinning
Pin Description Simplified outline Symbol
1 emitter TR1
6 5 4 6 5 4
2 base TR1
3 collector TR2
TR2
4 emitter TR2 TR1
5 base TR2
1 2 3 1 2 3
6 collector TR1 001aab555
sym018
3. Ordering information
Table 4. Ordering information
Type number Package
Name Description Version
BCM857BV - plastic surface-mounted package; 6 leads SOT666
BCM857BS SC-88 plastic surface-mounted package; 6 leads SOT363
BCM857DS SC-74 plastic surface-mounted package (TSOP6); 6 leads SOT457
4. Marking
Table 5. Marking codes
Type number Marking code[1]
BCM857BV 3B
BCM857BS A9*
BCM857DS R8
[1] * = -: made in Hong Kong
* = p: made in Hong Kong
* = t: made in Malaysia
* = W: made in China
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