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Note: The data of this document is obtained from public sources and this document is for reference & friendly
Discrete
promotion only.
Agenda
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What is Discrete? & Functions
Diode vs. Transistor
Discrete vs. I.C.
Parameters
Category
Small Signal Device
Digital Transistor
Applications
Packages
Players
What have you learned from this presentation?
Discrete
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What is Discrete & Functions
Discrete: A semiconductor device that contains one active element,
such as a diode or transistor
Or
Diode
MOSFET & BJT Symbol
(N-channel MOSFET & PNP transistor Shown)
Transistor
Functions:
■ Condition current & voltage
■ Protect from power surges
■ Amplify & switch electrical signals
■ Regulate voltage levels
Discrete
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Diode vs. Transistor
Diode
Diode:A Discrete
semiconductor device that
conducts current in only
one direction and blocks it
in the opposite direction.
Transistor:A Discrete
semiconductor device that is
capable of amplifying or
regulating current or voltage
flow and acts as a switch or
gate for electronic signals .
Transistor: 3 leads
PNP transistor & N-channel MOSFET SHOWN
Discrete
Note: Package not to scale.
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Discrete vs. IC
or
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Planar Technology
Passive
Discrete
or
An integrated circuit (IC) is a semiconductor device on which
thousands or millions of tiny resistors, capacitors, diodes and
transistors are fabricated and connected together on a
continuous substrate. So Discrete
basic elements in ICs.
Discrete
Note: Package not to scale.
devices are the
IC(Integrated Circuit)
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Parameters
Discrete
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Category
Discrete
Diode
Zener/TVS
SBD
Transistor
General-purpose
Standard
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Rectifier
Fast
FET
Bipolar
Ultrafast
BJT
IGBT
JFET
MOSFET
TVS:Transient Voltage Suppressor
SBD:Schottky Barrier Diode
BJT:Bipolar Junction Transistor
IGBT:Insulated Gate Bipolar Transistor
JFET:Junction Field Effect Transistor
MOSFET:Metal-Oxide-Semiconductor Field Effect Transistor
Discrete
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Small Signal Device
Definition
With less than 1Watt of power dissipation
Category
Transistor(BJT & JFET)
Diode(Tunning & Switching)
Functions
General Purpos, Amplification,
Switching
Electronic Tuning, Circuit Control
Packages
TO-92, SOT-23, SOT-223, SC-70/SOT-323, SOT-363, SOD-123
Industry Standard
MPS, MPSA, MMBT, BC…
Prefixes
Discrete
Shared from ON
1N, BAS, BAT, BAV...
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Digital Transistor
Names(Know as) Digital Transistor, BRT(Bias Resistor Transistor), Pre-biased Transistor
Definition
A BJT with 2 resistors integrated together and in one package--low scale
integration
Category
1.Single-PNP or NPN
2.Dual- 2 x PNP or 2 x NPN or Complementary(PNP + NPN)
Function
Replace a single transistor and its external resistor bias network
Benefits
1.Board Space Saving
2.Component Counts Decreased
3.Production Cost Saving
4.Increase Production Yield Rate
Packages
SOT-23, SC59/SOT346, TO-92, SC70/SOT323, SC75/SOT416, SC88/SOT363
Vendors
Matsushita, NEC, ON, Philips, Rohm, Sanyo, ST, Toshiba
Applications
Seriously concerning about the board space
Discrete
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Circuit applications
Switch
G.P. Diode
Rectification
Protection
Amplification
x
x
Zener
TVS
x
Rectifier
x
Bipolar
Transistor
x
x
JFET
x
x
MOSFET
x
Discrete
Shared from ON
Voltage
Reference
x
x
x
x
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Applications
Condition , Protection , Amplification , Switching , Regulation
computer, automotive, communication and consumer electronics
industries…
Discrete
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Package Category
Discrete Package
Through Hole-THD
Surface Mount -SMD
DO
TO
(Diode Outline)
(Transistor Outline)
SOD
SOT
(Standard Outline Diode) (Standard Outline Transistor)
(Axial Leaded Package)
Discrete
Note: Package not to scale.
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Package Table
Package Type
Zener
TVS
SC70
Schottky
Fast
Ultrafast
X
DO-214AC/A/B(SMA/B/C)
X
X
X
SOD-80(MELF/MiniMELF)
X
SOD-123
X
X
X
SOD-323
X
X
X
BJT
IGBT
JFET
X
X
X
X
X
X
ChipFET
X
SOIC-8/14/16
SOT-23(TO-236AB)
MOSFET
X
X
X
X
SOT-89
X
SOT-223
X
SOT-227 (ISOTOP)
TO-252(DPAK)
X
TO-263(D2PAK)
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
TSOP-6
X
TSSOP-8
X
DO-35
X
DO-41
X
X
X
X
X
X
TO-251(IPAK)
X
TO-262(I2PAK)
X
X
X
TO-3P
X
X
X
TO-92
X
X
X
TO-126
X
TO-247
X
Discrete
X
X
X
X
X
X
X
TO-220
TO-264
X
X
X
X
X
X
X
X
X
X
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Players
Discrete
Type
Local
ASIA
US
Europe
Zener
TVS
Panjit,
Panjit,
Rectron, Rectron,
TSC, Zowie
TSC
Hitachi,
NEC,
Rohm,
Toshiba
Schottky
Fast
Ultrafast
Panjit,
Panjit,
Panjit,
Rectron,
Rectron,
Rectron,
TSC, Zowie TSC, Zowie TSC, Zowie
BJT
Rectron,
Zowie
IGBT
JFET
Anpec,
APEC, CET,
CMC
APEC
Fuji, Hitachi,
Fuji,
Hitachi,
Hitachi,
Fuji, Rohm, Mitsubishi,
Hitachi,
Fuji, NEC, Fuji, Rohm, Fuji, Rohm,
Shindengen NEC, Rohm,
Mitsubishi,
Rohm, Shindengen Toshiba
, Toshiba Shindengen,
Toshiba
Toshiba
, Toshiba
Toshiba
MOSFET
Hitachi
Fuji, Hitachi,
Mitsubishi,
NEC, Rohm,
Shindengen,
Toshiba
Diodes,
Diodes,
Diodes,
Diodes,
Fairchild,
Diodes,
Diodes,
Diodes,
Fairchild,
Fairchild,
Fairchild,
Fairchild,
IR,
Fairchild, Fairchild, IR,
Fairchild, Fairchild,
IR,
IR,
IR,
Microsemi, Microsemi, ON, Vishay Microsemi,
Microsemi, Microsemi,
Microsemi, Microsemi, Microsemi,
ON, Vishay ON, Vishay
ON, Vishay
ON, Vishay ON, Vishay
ON, Vishay ON, Vishay ON, Vishay
Philips
Philips, ST
Infineon,
Philips, ST
Infineon,
Philips
Philips, ST
Infineon,
Philips, ST
Infineon,
ST
Philips
Infineon,
Philips, ST
Note: GS was acquired by Vishay in 2001.
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All trademarks, brands, and names are properties of their respective owners. This slide is just for
Discrete
Note:
friendly promotion and non-commercial usage.
What have you learned from this presentation?
What is Discrete & functions & category
■ applications & packages & players
■ difference between Discrete vs. IC
■ Discrete is the essential components in an electronic
product. No applications can work without discrete
inside.--- Cheap but important!
■
Discrete
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