Printer Friendly


TTI is known for providing world class delivery support on low ASP (average selling price) parts, such as resistors and capacitors. We are committed to providing nothing short of exceptional support for discrete semiconductors. TTI’s specialization in diodes, transistors, rectifiers, and the like allows us to apply our existing expertise in low ASP parts to a product category that gets little attention from semiconductor distributors. Additionally, TTI knowledge encompasses other discrete components like MOSFETs, optocouplers, and thyristors.

TTI has a team of specialists with more product experience and knowledge in passives, connectors, electromechanical, and discrete components than any other distributor. TTI believes that it can help customers streamline discrete component procurement.

With discrete semiconductors we offer the same system and process as we do with passive and connector components. Put this expertise to work for you and enjoy our long-established on time delivery and service performance!

Deep Discrete Inventory

Other highlights of our discrete products include: diode, diode semiconductor, diode transistor, ESD, ESD suppressor, FET transistor, IGBT, MOSFET, power transistor, rectifier, schottky diode, semiconductor diode, semiconductor transistor, transient voltage, suppression diode, transistor, transistor bipolar, transistor FET, TVS, TVS diode, Vishay, Mosfet, Vishay Semiconductor, and zener diode.

Featured Discrete Semiconductor Products

3-Phase Brushless Motor Driver | ROHM

3-Phase Brushless Motor Driver | ROHM
ROHM high efficiency, high reliabilty 3-phase brushless motor drivers are offered with a Hall sensor and support different conduction angles (sine wave drive), making them ideal for paper feed, polygon mirror, fan motor, ODD, and other applications. ( more info )

Automotive EEPROM | ROHM

Automotive EEPROM | ROHM
ROHM serial EEPROMs are non-volatile memory optimized for data retention, available in a range of interfaces, package types, and storage capacities. ( more info )

Standard Logic IC's | ROHM

Standard Logic IC's | ROHM
Switch, shift register, logic gate, and multiplexer types. ( more info )

AC/DC Converter Control IC for SiC Drive - Industry's First | Rohm Semiconductor

AC/DC Converter Control IC for SiC Drive - Industry's First | Rohm Semiconductor
ROHM has released an AC/DC converter control IC designed specifically for Silicon Carbide (SiC) MOSFET drive in industrial equipment such as servers and other large power applications. The BD7682FJ-LB allows easy implementation of SiC MOSFETs in AC/DC converters. ( more info )

Related Articles
  • The Next Generation in Passive Electronic Components

    06.30.2016 // Posted by: Dennis M. Zogbi

    Because of Paumanok’s depth and breadth of market and technology data on passive electronic components we have had the great opportunity to participate in the development of many advanced passive component technologies over the past 30 years. It is my observation that the market moves in cycles and that it is time again for the technology to move forward. And while many great words have been written to describe the directional correctness of the high-tech economy; the best four are “better, smaller, faster, cheaper.” Keep reading...

  • DAC 2016: Preparing for the Future of Electronics Design

    06.16.2016 // Posted by: Murray Slovick

    The Design Automation Conference (DAC) is the Electronic Design Automation (EDA) industry’s annual flagship conference. DAC offers education, exhibits and networking opportunities for designers, researchers, tool developers, and vendors. Conferences such as DAC are important because successful engineers must treat their careers as dynamic things which need continuous upkeep and upgrading. One would be uncomfortable visiting a physician who has fallen behind in the practice of medicine. Similarly, an engineer’s skillset will become diminished without continuing education, especially since the pace of technological change these days can make your head spin—even given that engineers are positively predisposed to new technology. Keep reading...

  • Shifting Market Shares in The Global Electronic Component Industry In FY 2016

    03.29.2016 // Posted by: Dennis M. Zogbi

    The fiscal year ending March 31, 2016, has proven to be an unusual economic year in the history of tracking the global capacitor, resistor and inductor markets worldwide. The market environment is succumbing to the impact of forces that are both internal and external to the supply chain and almost every company in the world selling electronic components took a beating in the markets in the last fiscal quarter, unless you were selling to specific manufacturers in China who in turn were building specific types of smartphones. The real crack in the armor came mid-March 2016 when a key industry executive asked me to do a quick analysis on nine month year-on-year sales cycles for components sold into the automotive industry, as there was conflicting information about just how hot the automotive end market really was; as every piece of literature (including my December MarketEYE article) promoted the positive market opportunities for passenger compartment electronics in the coming years. Keep reading...

Product Overview

Discrete semiconductor products are available at TTI Inc. from industry leading manufacturers. TTI is an authorized distributor for many sensor manufacturers including: Aeroflex Metelics, Semelab / TT electronics, Toshiba, Kingbright and Littelfuse.

Discrete Components

Bipolar Transistor

Bipolar Transistor (BJT) Bipolar junction transistors are a type of transistor used in applications for amplification and switching signals. They are named Bipolar as their operations involves both electrons and holes (opposite of electrons). Similar to the MOSFET, the bipolar transistor is used in applications where signal switching or amplification is required.


Diode A diode is a component that allows an electric current to flow in one direction, but blocks it in the opposite direction, like an electronic version of a check valve. Circuits that require current flow in only one direction typically include one or more diodes in the circuit design.


IGBT The Insulated-Gate Bipolar Transistor or IGBT is a three terminal power semiconductor device that is noted for high efficiency and fast switching. IGBT’s are used to switch power in many electrical appliances: variable speed refrigerators, air conditioners, stereo systems with digital amplifiers. IGBT’s are a fairly recent invention beginning in the 1980’s and 1990’s. They rival the speed of MOSFET's with the ability to handle very large amounts of current and voltage. IGBT’s are often selected in lieu of MOSFETs in applications over 600 volts. IGBT’s are a major component in electric and hybrid automobiles.


MOSFET A MOSFET (Metal Oxide Semiconductor Field Effect Transistor) is an electronic device used to amplify or switch electronic signals. MOSFET's are the most common field effect transistor (FET) in both digital and analog circuits. MOSFET's are an enhancement on bipolar technology and are the most popular semiconductor-type transistor. A MOSFET provides both an output current and voltage gain into an external load that exceeds the input current and voltage. In basic terms MOSFET's amplify their input signals.

N-Channel & P-Channel MOSFETs

P-Channel MOSFETs N-Channel & P-Channel MOSFETs are specific types of MOSFETs. Silicon is “doped” by adding a slight impurity to the silicon to result in an extra electron or a reduction of one electron. N-channel devices have an extra electron in their base structure while the P-channel device are missing electrons.


Rectifier A rectifier is a diode operating above 0.5amps and converts alternating current (AC) to direct current (DC) in a process known as rectification. Devices that convert the opposite (DC to AC) are know as inverters. Rectifiers are most commonly found in power supplies. Rectifiers can take standard AC electricity from power outlets and make the power usable in DC circuits. They are also used for signal conditioning. Rectifiers are also known as power diodes and are the largest class of products in the diode family. Devices with a current under 0.5amps are considered small signal diodes.


Transistor A transistor is a semiconductor device commonly used as an amplifier or an electrically controlled switch. The transistor is used in a wide variety of digital and analog functions, including amplification, switching, voltage regulation, signal modulation, and oscillators because of its fast response and accuracy. Modern transistors are divided into two main categories: bipolar transistors and field effect transistors (FETs).

Things to Consider

Key Paramenters - Bipolar Transistors
  • Collector emitter voltage: amount of voltage that can be applied between the collector
  • Collector current: maximum current the collector can accommodate before failure
  • Current gain: current gain of the device
  • Collector-emitter saturation voltage: indication of voltage strength
  • Maximum power dissipation: indicates how much power the device can withstand before possible failure
Key Paramenters - IGBTs
  • Voltage breakdown: amount of voltage that can be applied between the collector and the emitter
  • Peak current: maximum current the collector can accommodate before risking damage to the device
  • Collector-emitter saturation voltage: voltage between the collector and emitter
Key Paramenters - MOSFETs
  • Source drain resistance: measurement of resistance when a device is on between the drain and the source load
  • Voltage drain source: amount of voltage that can be applied between the drain and the source before the junction breaks down
  • Drain current: maximum current the drain can accommodate before risking damage to the device
  • Gate charge: amount of charge required to switch the gate from on to off, and vice versa
Key Paramenters - Rectifiers
  • Peak repetitive reverse voltage: amount of reverse voltage that can be applied before damaging the device
  • Reverse recovery time: amount of time required for the current to reach a specified level after switching from forward to reverse bias
  • Maximum average current: highest repetitive current value the device can withstand before failure
  • Non-repetitive maximum allowable peak current: highest non-repetitive current value the device can withstand before failure