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CAT# DESCRIPTION pins ea.74LS244 TRI-STATE OCTAL LINE DRIVER 20 .6574HC574 OCT D FLIP FLOP 20 .454001 QUAD NOR GATE 14 .354013 FLIP FLOP 14 .354017 DECADE COUNTER / DIVIDER 16 .604027 FLIP FLOP 16 .704040 12 STAGE BI. RIP. COUNTER 16 .40MC14049 HEX INVERTING BUFFER 16 .404052 DIFFERENTIAL ANALOG 16 .354068 8 INPUT NAND GATE 14 .404071 QUAD OR GATE 14 .354093 QUAD NAND SCHMITT TRIG. 14 .704511 LATCH/DECODER/DRIVER 16 .80

CAT# DESCRIPTION pins ea.TLO82 J-FET IN DUAL OP AMP 8 .70ADM202EAN LINE DRIVER RECEIVER 16 .75LM311 COMPARATOR 8 .50LM324 QUAD OP AMP 14 .50LM339 QUAD COMP 14 .60LF353 DUAL BI-FET OP AMP 8 .50LM358 DUAL OP AMP 8 .30LM386N AUDIO AMP .25 W 8 1.25LM393 LOW POWER DUAL COMP 8 .30LM555 TIMER 8 .75ICM7555 CMOS TIMER “555” 8 1.00LM556 DUAL (555) TIMER 14 .45LM567 TONE DECODER 8 .90LM741 OP AMP (MC1741) 8 .90MC1458 DUAL OP AMP (MC4558) 8 .50LM2900 QUAD OP AMP 14 .60MC1489 QUAD LINE RECEIVER 14 .60ULN2003 DARLINGTON ARRAY 16 .7575452 DUAL PERIP. NAND DR. 8 .4075453 DUAL PERIP. OR DRIVER 8 .40

CAT# DESCRIPTION pins ea.74AHC574PWR

TRI STATE OCTAL FLIP-FLOP 20 .5074HC08DR QUAD 2-IN POS-AND GATES 14 .40

POSITIVE REGULATORSCAT# DESCRIPTION CASE each7805T +5 VOLT 1 AMP (LM340T-5) TO-220 .507806T +6 VOLT 1 AMP (LM340T-6) TO-220 .507808T +8 VOLT 1 AMP (LM340T-8) TO-220 .507812T +12 VOLT 1 AMP (LM340T-12) TO-220 .507815T +15 VOLT 1 AMP (LM340T-15) TO-220 .50LM2940CT-12 +12 VOLT TO-220 1.1078L05 +5 VOLT 100 MA TO-92 .4078L12 +12 VOLT 100 MA TO-92 .40S81250 +5 VOLT 100 MA TO-92 .2578M12-SM +12 VOLT 500MA, Surface-mt. .35CJ78M05 +5 VOLT 500MA, Surface-mt. .35L4940V05 +5 VOLT 1.5 AMP TO-220 .60

NEGATIVE REGULATORS7905T -5 VOLT 1 AMP (LM320T-5) TO-220 .507908T -8 VOLT 1 AMP TO-220 .657912T -12 VOLT 1 AMP (LM320T-12) TO-220 .50

ADJUSTABLE REGULATORSLM317T ADJ. POSITIVE (1.2-37V) TO-220 .70LM317LZ ADJ. POSITIVE (1.2-37V) TO-92 .65LM337T ADJ. NEGATIVE (1.2-37V) TO-220 1.50LM338T ADJ. POSITIVE 5 AMP TO-220 2.75LM350T ADJ. POSITIVE 3 AMP TO-220 3.50LM2941S 5-20V, Surface-mount TO-263-5 1.25TPS73601 1.2-5.5V, Surface-mount SOT223 1.00

HIGH RELIABLITY(MACHINED PINS)PINS CAT# 1 10 100+8 HRICS-8 .50 .45 .3514 HRICS-14 .65 .60 .5016 HRICS-16 .75 .70 .6022 HRICS-22 .50 .45 .3540 HRICS-40 1.20 1.15 1.05

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CAT# DESCRIPTION pins ea.TL082C DUAL OP AMP 8 .25TL084C J-FET QUAD OP AMP 14 .20LM311D COMPARATOR 8 .50LMV324MX OP AMP, SMD 14 .50LM339D QUAD COMPARATOR 14 .30LM361M HI-SPEED DIFF. COMP. 14 1.20MC33079D LOW NOISE DUAL OP-AMP 14 .35

SOLDERTAILPINS CAT# 1-49 50-99 100+6 ICS-6 .20 .15 .108 ICS-8 .20 .15 .1014 ICS-14 .20 .15 .1016 ICS-16 .25 .20 .1518 ICS-18 .30 .25 .2020 ICS-20 .40 .35 .3022 ICS-22 .40 .35 .3024 ICS-24 .15 .12 .10 Special!28 ICS-28 .45 .40 .3540 ICS-40 .55 .50 .45

Perkin Elmer VTP8651. Two pin dip package. Arrays can be formed by positioning devices side by side. 4.62mm x 4.11mm x 1.07mm deep. CAT# PD-6 3 for $1.00 • 100 for 24¢ each

QSE773, side-looking photo-diode.CAT# PD-7 3 for $1.00100 for 25¢ each

8-BIT MICROCONTROLLERS28-pin DIP package. 2.1 MHz 4.5 KB (4.5K X 8) OTP.CAT# MC68HC705P6ACP $4.75 eachPLC-44 surface-mount package.CAT# P87C51RA2BA $4.50 each

AUDIO BAND SCRAMBLERThis is a full-duplex frequency inversion scrambler designed to provide secure conversations. Carrier rejection >55dB. Uses IF (10.24 MHz) clock. Excellent audio quality. Low power operation (3.0V). Battery powered portability. 16 pin surface mount.CAT# MX128DW 2 for $1.00 • 100 for 40¢ ea.

AC/DC CONVERTERON Semi # NCP1053B. 8-pin DIP package (7 pins).CAT# NCP1053B 75¢ each10 for 65¢ each • 50 for 60¢ each

VOLTAGE REGULATORS

INTEGRATED CIRCUITS

LOGIC

LOGIC - SURFACE MOUNT

LINEAR SERIES

LINEAR - SURFACE MOUNT

MISCELLANEOUS

IC SOCKETS

PHOTO DIODES

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35 AMP BRIDGES1 1/8" square.200 P.I.V. CAT# FWB-352 $2.50 ea.

10 for $22.50 • 100 for $175.00400 P.I.V. CAT# FWB-354 $4.00 ea.600 P.I.V. CAT# FWB-356 $4.50 ea.800 P.I.V. CAT# FWB-358 $4.75 ea.

1 1/2 AMP BRIDGES TO-5 case 3/8" diameter.

1.5A 200V CAT# FWB-14 40¢ each1.5A 400V CAT# FWB-15 50¢ each

MINI-DIPS Fits 8-pin DIP socket.Amps Volts CAT# Each 1001/2 400 FWB-48 .35 .201 100 FWB-11 .35 .201 600 FWB-16 .40 .30

2 AMP 800 VOLT BRIDGE2W08G, round epoxy case.CAT# FWB-28 65¢ 2 for $1.00 10 for 45¢ each • 100 for 40¢ each

25 AMP BRIDGES1 1/8" square.200 P.I.V. CAT# FWB-252 $2.50 ea.400 P.I.V. CAT# FWB-254 $3.00 ea.600 P.I.V. CAT# FWB-256 $3.50 ea.with wire leads400 P.I.V. CAT# FWB-254W $2.00 ea.800 P.I.V. CAT# FWB-258W $2.25 ea.

IN-LINE BRIDGE RECTIFIERSFour leads on 0.2” centers.Amps Volts CAT# Each 1006 400 FWB-64 .85 $65.006 600 FWB-66 .90 $65.008 1000 FWB-810 1.35 $100.00

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CAT# amp PIV price 1001N5817 1 20 3/$1.00 27.001N5819 1 40 3/$1.00 27.001N5822 3 40 3/$1.25 35.00MBR2060CT 20 60 $1.00 ea. 75.00STPS140A 1 40 4/$1.00 17.00STPS15L60C smt 2x7.5 60 70¢ ea. 65.00S310 - surface mt. 3 100 4/$1.00 22.00

CAT# VOLT AMP PRICE 100 1000R6000 6000 0.2 .50 40.00 300.00

Amp Volt CAT# price 10010 200 BYQ28X-200 50¢ ea. 40.00

TO-220 case.

Axial

Amp Volt CAT# price 1001 400 1N4936 15 for $1.00 4.003 1000 UF5408 10 for $3.00 25.00

Amp Volt CAT# price 10015 400 RURH1540C 85¢ ea. 65.00

TO-218AC case.

Amp Volt CAT# price 10030 200 MUR3020PT 90¢ ea. 70.00

TO-247AD case.

CAT# 1N4003-TR 100 for $3.00 1000 for $20.00 • 5500 for $55.00

CAT# VOLT AMP PRICE 100 10001N4001 50 1 15 / $1.00 5.00 40.001N4002 100 1 12 / $1.00 5.50 45.001N4003 200 1 10 / $1.00 6.00 50.001N4004 400 1 9 / $1.00 6.50 55.001N4005 600 1 8 / $1.00 7.00 60.001N4007 1000 1 10 / $1.00 3.50 25.001N4935 200 1 20¢ ea. 15.001N4936 400 1 15 / $1.00 4.00 35.001N4937 600 1 10 / 90¢ 6.00 45.00HER203 200 2 10 / $1.00 6.00 50.001N5400 50 3 3 / 60¢ 12.50 100.001N5401 100 3 3 / 65¢ 13.001N5402 200 3 3 / 70¢ 15.00 110.001N5404 400 3 3 / 80¢ 17.00 130.001N5406 600 3 4 / $1.00 20.00 150.001N5408 1000 3 5 / $1.00 see special below*D610 100 6 35¢ 31.00 270.00D620 200 6 2 / 90¢ 40.00 350.00D660 600 6 2 / $1.00 45.00 400.00P600M 1000 6 2 / $1.20 50.00GI851 100 3 4 / $1.00 15.00 110.00GI751 100 6 35¢ 30.00

* Special Quantity Discounts1N5408 1000 3 100 /15¢ ea. • 1000 / 11¢ ea.

Rohm #RPT-38PB3F. Top-view NPN silicon planar phototransistor. Visible light filter to minimizestray light interference. T1, 3mm dia. package.CAT# PTR-4 2 for 80¢

Ledtech # LT9593-91-0125. Water-clear T 1 3/4 w/ flat face. CAT# PTR-1 2 for $1.30 50 for 50¢ each

BPW34. Tiny general purpose PIN photo-diode. Sensitive to a wide range of light wavelengths (430-1100nm). The rated open circuit voltage is 350mV (900nm, 1mW/cm² lightsource), short circuit current is 47µA. Ideal for avariety of light sensing applicationsCAT# BPW34 $1.50 each

EETP140. Three-lead side looking opto-electronic device. 0.14" x 0.16" x 0.11" thick.Raised 0.05" diameter lens.CAT# PTR-2 4 for $1.00

PHOTO-TRANSISTORS

FULL WAVEBRIDGE RECTIFIERS

RECTIFIER DIODES

DIODES

SPECIAL, 1N4003 DIODES (1A 200V)

HIGH-VOLTAGE RECTIFIER

SCHOTTKY DIODES

ULTRAFAST DIODES

HC-05 BLUETOOTH MODULEHC-05 / ZS-040 Bluetooth module. 37 x 16.5 x 4.0mm pc board with 6-pin header. Can be set for master or slave operation. Onboard 3.3V regulator. Operates on 3.3-6V. For use with Arduino.CAT # HC-05 $8.50 each

FAST FRIENDLY SERVICE90

WiFi MODULE - ESP8266Self contained WiFi module capable of either hosting an application or offloading all Wi-Fi networking functions from another application processor. Pre-programmed with an AT command set firmware. Operating voltage 3.3V.CAT# ESP-8266 $5.35 each

16 X 2 LCD W/ KEYPAD For Arduino compatible boards for user input and menu selection in custom applications. Features a 1602 white character LCD with blue LED backlightand 4-bit Arduino LCD library. Character size:2.95 x 4.35mm. Keypad consists of 6 keys: se-lect, left, up, down, right and reset. Potentiome-ter for dimmable backlighting. LED indicator.Operates on 5Vdc. 80mm x 58mm x 13mm.CAT# ST-1113 $7.98 each

JOYSTICK SHIELDTurn your Arduino board into a gamepad similar to a Nintendo controller. Can communicate with other wireless interfaces. Features the Nokia 5110 LCD / nRF24L01 interface. Sevenpush buttons (four big, two small, joystick selectbutton) and a two-axis thumb joystick. Operateson 3.3-5Vdc. Board dimensions 83mm x 54mm.CAT# ST-1124 $4.95 each

LIGHT SENSORS

New Item

VOICE RECORD / PLAY MODULEBased on the ISD1820 chip, this multiple-message record/playback device offers true single-chip voice recording, non-volatile storage, and play-back capability for 8-20 seconds. Features on-board microphone as well as internal audioamplifier which can drive an 8 Ohm 0.5Wspeaker directly. Can be manually operatedwith on-board pushbuttons or by microcon-troller. Supply voltage 3.3-5 Vdc. Board dimensions 54mm x 38mm x 15mm high.CAT # ME-63 $6.00 each

New Item

RFID READ AND WRITE KITAllows you to both read and write MiFare-type cards. Can be used for identification applications, tracking inventory, or contactless security lock. Includes one credit-card style tag and one key-fob style tag.CAT # ME-138 $6.95 each

New Item

New Item

Light dependent Cadmium sulfide (CdS) resistors. Plastic coated resistors on ceramic,0.2-0.25” diameterLight and dark resistancesare approximate.

2MΩ Dark 1K – 60KΩ LightCAT# PRE-24 1.25 each 10 for $1.10 ea

30K Dark – 1.5K LightCAT# PRE-2595¢ each • 10 for 85¢ each

Arduino-style ModuleApproximately 100Ω light, 10KΩ+ dark resistance. 0.60" x 0.75" pc board with 3-pin output, 0.10" spacing.CAT# SE-12 $2.40 each

CdS PHOTOCELLS –PHOTO RESISTORS

PHOTO-ELECTRIC SENSORSTHROUGH-BEAM PHOTO-ELECTRICSENSOR PAIRSICK Optics WS15-D1130 / WE15-A1130. Photo-electric sender and receiver pair detects the presence of an object when the beam between the two is interrupted. Useful in automation, alarm systems and door annunciators. When the beam is broken, the receiver produces a current that can be used to trigger an audio-visual signal or relay-operated device. 5 Meter range. Built-in LED alignment andpower indicators. Modules are 38 x 21 x16.2mm and can be front or side-mounted.Front-mount hardware is included. Operate on10-30Vdc. Power supply not included. cULus.CAT # OSU-1130 $15.00 pair

PHOTOELECTRIC SENSOR, USEDOmron #E3F2-R2C4 Retro-reflective proximity sensor(reflects back upon itself). NPN open-collector output. 2 Meter (6’) range.Selectable, either light-on or dark-on control input. Threaded, 18mm dia. x 62mm long, chemical resistant ABS resin case. 4-conduc-tor, 4” cable. 2 plastic mounting nuts. UL, CSE,CE. Used, removed from working equipment.CAT# OSU-77 $1.50 each10 for $1.00 each

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LINE FOLLOWING / REFLECTIVITYSENSORMeasures the reflectivity of a surface using infrared emitter/ detector pair. Built around the LM393 comparator, it requires only 3 connections, V+, 5VDC, andGND. LED indicator. Can make a robot follow apainted line or count rotations of a motor shaft.1.64" x 0.42" x 0.40". Three pin header, 0.1"centers. Operates on 3.3-5Vdc. 20mA @ 5Vdc.CAT# ST-1140 $3.50 $2.75 each

Reduced Price

INFRARED SENSORS

IR OBSTACLE AVOIDANCE SENSORUses IR beam to detect proximity of obstacles. Great for sounding an alarm or changing direction of a robot or self-propelled vehicle. Potentiometer to adjustdetection distance (2-40cm). Supply voltage 5 Vdc. 45mm x 16 mm x 9mm.CAT# ST-1081 $2.75 each

PIR MOTION SENSORPassive Infrared (PIR) motion sensor. Power it up and wait 1-2 seconds for the sensor to get a snapshot of the still room. If anything moves after that period, the alarm pin will go low. CAT# PIR-6 $9.95 each • 10 for $8.96 each

PIR SENSOR HC-SR501 Passive InfraRed (PIR) motion sensor can be used alone or with Arduino or other micro-controller. Adjustable sensitivity and timing. 33 x 24mm pc board. 25mm overall depth.CAT# PIR-7 $4.95 each

INFRARED SENSORRE 200B passive infrared sensor. Two active elements helping compensate for differences in environmental temperature.Used in alarm systems and automatic switchesthat respond to human body motion. Hermeti-cally sealed TO5 metal case with 3 leads.CAT# PIR-200B $1.00 ea. • 10 for 90¢ ea.

IR TRANSMITTER MODULEIR transmitter module designed for IR communication when paired with IR receiver (CAT# ST-1089).Indicator LED lights when signal voltage change is detected. Operating voltage 5Vdc. Includes 3-pin female jumpers for attachment to header pins. 34mm x 20mm.CAT# SE-28 $3.40 each

IR RECEIVER MODULESimple IR receiver module used to read infrared light value. Can be used to communicate with our IR transmitter module (CAT# SE-28). Detectionangle 60º. Can receive transmissions from adistance of 8 meters. Operating voltage 5Vdc.25mm x 15mm.CAT# ST-1089 $2.40 each

ULTRASONIC SENSORSULTRASONIC DISTANCE SENSOR The HC-SR04 is an affordable proximity/distance sensor that can be used for object avoid-ance in various applications from robotics to car parking. The module hasintegral ultrasonic transmitters, receiver andcontrol circuit and is for use in conjunction withArduino boards. 45 x 27 x 17mm. CAT# UST-4 $4.50 each

ULTRASONIC TRANSDUCERMatsushita #0D24K2. 0.95" diameter x 0.38" metal case. 0.65" long pc leads on 0.4" centers.CAT # XDR-24 4 for $1.20

TEMPERATURE SENSORS

DIGITAL TEMPERATURE SENSORDS18B20 1-Wire digital temperature sensor. Reports degrees C with 9 to 12-bit precision, -55C to 125C (+/-0.5C). Each sensor has a unique 64-Bit Serial number etched into it - allows for a huge number of sensors to be usedon one data bus. The corner stone of manydata-logging and temperature control projects.TO-92 package.CAT# DS18B20 $1.50 each

TEMPERATURE SENSORNational Semi # LM34DZ Precision Fahrenheit sensor. Voltage is linearly proportional to the temperature. Operates on 5-30Vdc TO-92 package.CAT# LM34DZ $3.30 each

TMP36 TEMPERATURE SENSOR, TO92Low voltage, precision centigrade tempera-ture sensor. It provides a voltage outputthat is linearly proportional to the Celsiustemperature. It also doesn't require any ex-ternal calibration to provide typical accura-cies of ±1°C at +25°C and ±2°C over the -40°Cto +125°C temperature range.CAT # TMP-36 $1.50 each

New Item

DIGITAL TEMPERATURE SENSOR MODULEDallas DS18B20 temperature sensor chip mounted on a pc board with pins for plug-in use with Arduino and other platforms. CAT # TS-12 $5.75 each

New Item

TEMPERATURE / HUMIDITY SENSORDigital temperature and humidity measurement device with a high-performance 8-bit micro-controller connected. Standard single-bus interface.CAT# SEN-4 $3.50 each

FLOAT SWITCH WITH INTEGRATEDTHERMISTORGems Sensors222727 Horizontal liquid level float switch. For sensing rising or fallingliquid levels (normally open or normally closed).Hermetically sealed magnet and reed switch foraccurate, reliable long-life operation. Integrated10K ohm NTC thermistor allows monitoring ofliquid temperature as well. Threaded 13/16"male Nylon stem. Polypropylene float, 2.4" longfrom hinge to end. Four 10" leads, two forswitch (red) and two for thermistor (green).CAT# FLW-1 $3.50 ea. • 10 for $3.00 ea.

LIQUID LEVEL SENSORFloat switch closes circuit when float rises to top of switch (end opposite leads). Can be used in opposite direction as well to close circuit when water level drops. 0.96" diameter plastic float and 0.35" threaded bushing with plastic nuts and rubber O-ring. 2.64" overall length. 14" pigtail leads.CAT # FLW-2 $3.35 each

New Item

VIBRATION SHOCK MODULEVibration and shock detecting module sends out a low level signal when a force is detected. Sensitivity can be modified by moving switch closer or farther away from area of interest. Operates on 5V. 28mm x 15mm.CAT# SE-53 $2.40 $1.50 each

Reduced Price

CRASH SWITCH SENSORArduino compatible high-sensitivity crash sensor ideal for robotics and motor vehicles. Sensor is a microswitch with lever. Outputs low level signal when touched; maintains high level signal when released. LEDindicator. Operates on 5 Vdc. Includes 3-pinjumpers with female ends for attachment toheader pins. 35mm x 21mm x 8mm.CAT# SE-32 $2.75 $2.25 each

Reduced Price

VIBRATION OR JOLT DETECTOR Outputs a low-level signal when a jolt or vibration is detected. LED indicator. Three wire connection. Includes pre-wired connector. 30 x 21 x 11mm.CAT# SE-25 $2.85 each

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HALL EFFECT SENSORAllegro MicroSystems # UGN3503U Ratio metric, linear hall-effect sensor in a miniature three-lead plastic SIP package. Flat Response to 23 kHz. 4.5V to 6V Operation.CAT# HES-2 $1.75 $1.50 each Reduced Price

HALL EFFECT SENSOR BOARD44E938 and related components on a pc board designed for use with Arduino boards. 30 x 15mm overall dimensions. Operates on 5V.CAT# SE-54 $2.25 each

LINEAR MAGNETIC HALL SENSORSimple analog hall sensor module used for proximity switching, positioning, speed detection, and current sensing applications. Signal output is low when magnetic field is present, signal output is high when magnetic field is absent. LED indicator. Potentiometer for adjustable sensitivity. Operat-ing voltage 5Vdc. 44mm x 15mm x 13mm.CAT# SE-14 $2.75 $2.50 each

Reduced Price

LIQUID LEVEL SENSORS

HALL EFFECT SENSORSBI-POLAR HALL EFFECT SENSORMICRONAS HAL115UA-C Detects the presence or the absence of a magnetic field. TO-92UA. VDD = 4.5V to 24V. Typical VDD = 12V. CAT# HES-1 75¢ each 10 for 65¢ each • 100 for 55¢ each

MERCURY TILT SWITCHSingle-pole, plastic encapsulated tilt switch with 28" wire leads. When leads are up the contact is open. When leads are down the contact is closed. 1.47" x 0.35" x 0.39". Double stick tape on back.CAT # MS-230 $5.50 each

New Item

3-AXIS ACCELEROMETERThe ADXL335 is a small, thin, low power, complete 3-axis accelerometer with signal conditioned voltage outputs. The product measures acceleration with a minimum full-scale range of±3 g. It can measure the static acceleration ofgravity in tilt-sensing applications, as well asdynamic acceleration resulting from motion,shock, or vibration.CAT # ACX-61 $8.95 each

New Item

KNOCK SENSOR MODULESimple percussion sensor, also referred to as "knock sensor", sends a high level signal output when it registers a knock or jolt. LED indicator. Operates on 5 Vdc. Includes 3-pin jumpers with female ends for attachment to header pins. Overall dimensions 30mm x 21mm x 12mm.CAT# SE-24 $3.10 each

MOTION / VIBRATIONSENSORS