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PBSS4021SPN
20 V NPN/PNP low VCEsat (BISS) transistor
Rev. 2 -- 13 October 2010 Product data sheet
1. Product profile
1.1 General description
NPN/PNP low VCEsat Breakthrough In Small Signal (BISS) transistor in a SOT96-1 (SO8)
medium power Surface-Mounted Device (SMD) plastic package.
Table 1. Product overview
Type number Package NPN/NPN PNP/PNP
NXP Name complement complement
PBSS4021SPN SOT96-1 SO8 PBSS4021SN PBSS4021SP
1.2 Features and benefits
Very low collector-emitter saturation voltage VCEsat
High collector current capability IC and ICM
High collector current gain (hFE) at high IC
High efficiency due to less heat generation
Smaller required Printed-Circuit Board (PCB) area than for conventional transistors
1.3 Applications
Loadswitch Charging circuits
Battery-driven devices Power switches (e.g. motors, fans)
Power management
1.4 Quick reference data
Table 2. Quick reference data
Symbol Parameter Conditions Min Typ Max Unit
TR1; NPN low VCEsat transistor
VCEO collector-emitter voltage open base - - 20 V
IC collector current - - 7.5 A
ICM peak collector current single pulse; tp 1 ms - - 15 A
RCEsat collector-emitter IC = 5 A; IB = 0.5 A [1] - 25 35 m
saturation resistance
NXP Semiconductors PBSS4021SPN
20 V NPN/PNP low VCEsat (BISS) transistor
Table 2. Quick reference data ...continued
Symbol Parameter Conditions Min Typ Max Unit
TR2; PNP low VCEsat transistor
VCEO collector-emitter voltage open base - - -20 V
IC collector current - - -6.3 A
ICM peak collector current single pulse; tp 1 ms - - -15 A
RCEsat collector-emitter IC = -5 A; IB = -0.5 A [1] - 36 54 m
saturation resistance
[1] Pulse test: tp 300 s; 0.02.
2. Pinning information
Table 3. Pinning
Pin Description Simplified outline Graphic symbol
1 emitter TR1
8 5 8 7 6 5
2 base TR1
3 emitter TR2
TR1 TR2
4 base TR2
5 collector TR2 1 4 1 2 3 4
006aaa985
6 collector TR2
7 collector TR1
8 collector TR1
3. Ordering information
Table 4. Ordering information
Type number Package
Name Description Version
PBSS4021SPN SO8 plastic small outline package; 8 leads; body width 3.9 mm SOT96-1
4. Marking
Table 5. Marking codes
Type number Marking code
PBSS4021SPN 4021SPN
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