Components

Quick Link - Common Laboratory Components

Please see room Bannan 218 for parts not listed.

Overcurrent Protection | Potentiometer-Trimmer | Resistor | SMDCodes | SMD Socket Adapters

Test Clips | Transistor-FET | Thermal Heat Sink

Directories & Listings of Manufactures

http://www.chipdocs.com/

Chip Manufactures List

Transistor/FET/Power Controllers/Interface

Connector Manufactures

Crystal & Oscillator Manufactures

Overcurrent Protection

Manufactures:

Reference Documents:

polyswitchTechFundc4cd

An overcurrent event or fault is when the current (amperage) in an electrical circuit exceeds the rated capacity. There are many possible sources for an overcurrent fault such as a short, power cross, surge, etc. These faults can permanently damage the follow-on electronics and may cause serious injury.

Thermal Heat Sinks

Aavid Applications Engineering Support
Aavid Thermalloy engineers can assist with the design of heat sinks for both forced and natural convection applications. Frequently we have already encountered a situation similar to yours and may have a solution readily available. If not, we will start from scratch and help you design a cooling strategy uniquely tailored for your application. www.aavidthermalloy.com

Nuts n Bolts

www.tacomascrew.com

Printed Circuit Board Manufacture

Local:

www.pcacorporation.com

Printed Circuit Board Layout House

www.ultracad.com

Search Engines for Electronic Parts

Need to find a part? Try these search engines for parts or try the online distributors listed below.

Electronic Distributors

Local:

Bellevue : https://vetco.net/
Renton : www.frys.com

Online:

EE Magazines

Keep up to date on the latest technology & design news - Free magazine subscriptions!

Design References

Logic 74xxxx Series

References:

74ls00c224 Quad 2 input NAND gate	74ls85a3e6 4 bit magnitude comparator	741763316 Decade Counter
74ls014aba Quad 2 input NAND gate (OC)	74ls863e01 Quad 2 input XOR gate	741763316Binary Counter
74ls02f56e Quad 2 input NOR gate	74ls90092e Decade counter	74ls191d1e4 4 bit binary up / down counter
74ls035b67 Quad 2 input NAND gate (OC)	74LS91 8-bit shift register	74ls192690d BCD up / down counter
74ls04505f Hex Inverter	74ls90092e Divide by 12 counter	74ls192690d 4 bit binary up / down counter
74ls05ecc6 Hex Inverter (OC)	74ls90092e 4-bit Binary counter	74ls195ebfd 4 bit shift register
74ls066457 Hex Inverter buffer/driver	74ls95da42 4-bit shift register	74ls19679b9 Presettable decade counter
74ls08eb48 Quad 2 input AND	74ls1072c09 Dual JK flip-flops with clear	74ls19679b9 Presettable binary counter
74ls0961a1 Quad 2 input AND gate (OC)	74ls1094a62 Dual JK pos edge trig flip flop	74199 8-bit shift register
74ls103cf7 Triple 3 input NAND gate	74ls112c884 Dual JK neg edge trig flip flop	74ls2211bdb Dual monostable multivibrator
74ls111b94 Triple 3 input AND gate	741217bd2 Monostable multivibrator	74s225d730 16x5 FIFO memory
74ls129d48 Triple 3 input NAND gate (OC)	74ls1231d89 Retriggerable Monostable multivibrator	74ls240fdd2 Octal buffer/line driver
74ls1308c8 Dual 4-input NAND gate Schmitt trigger	74ls1231d89 Retriggerable Monostable multivibrator	74ls2413040 Octal 3-state buffer
74ls14cff4 Hex Inverter Schmitt trigger	74ls12576fe Quad 3-state Buffer	74ls240fdd2 Octal buffer/line driver
74ls153314 Triple 3 input AND gate (OC)	74ls132dc34 Quad 2 input NAND gate Schmitt trigger	74ls2458a9d Octal bus transceiver
74ls164b63 Hex Inverter (OC)	74ls133d5c7 13 input NAND	74ls2517bfc Data selector / MUX
74LS20 Dual 4 input NAND gate	74ls13656d0 Quad 2 input XOR (O.C)	74ls2578e23 Quad 2 input mux 3-state
74ls21590f Dual 4 input AND gate	74ls138f9da 3-to-8 line decoder/demux	74ls2595194 8 bit addressable latch
74ls2263b6 Dual 4 input NAND gate (OC)	74ls13969bd Dual 1-of-4 decoder/demux	74ls2664e75 Quad 2 input XNOR (O.C)
7425fec4 Dual 4 input NOR gate with strobe	74ls138f9da 10 line - 4 line octal priority encoder	74ls2736608 Octal D type flip flop with clear
74ls278351 Triple 3 input NOR gate	74ls138f9da 8 line - 3 line octal priority encoder	74ls2803836 9 bit odd / even parity generator
7425fec4 8 input NAND gate	74150e6fc Data selector/mux	74ls298d54b Quad 2 input MUX with storage
74ls329bf4 Quad 2 input OR gate	74ls1516d03 8 input MUX	74ls299a5ff 8 bit universal shift register
74ls387b99 Quad 2 input NAND gate Buffer (OC)	74ls1533494 Dual 4-to-1 Multiplexer	74ls3231687 8-Bit Shift register
74ls42b427 BCD to DEC decoder	74ls1545606 4-to16 decoder/demux	74ls367749c Hex bus driver
7445ec4e BCD to DEC decoder	74ls15502c0 Dual 2 line to 4 line decoder / demux	74ls367749c Hex bus driver with invereters
74ls472c1d BCD to 7 seg decoder/driver (OC)	74ls15502c0 Dual 2 line to 4 line decoder / demux (O.C)	74ls373bbae Octal transparent latch
74ls4804d2 BCD to 7 seg decoder/driver (OC)	74ls1570797 Quad 2 input MUX	74ls373bbae Octal D type flip flop 3-state
74ls51049a AND/OR/INVERT gate	74ls1570797 Quad 2 input MUX with invereted outputs	74ls39042d4 Dual 4 bit decade counter
74ls54c552 4-wide AND/OR/INVERT gate	74ls1609042 BCD decade counter	74ls393ba36 Dual 4 bit binary counter
74F64 Pos 4-2-3-2 input AND/OR/INVERT gate	74ls1611432 Synchronous 4 bit binary counter	74ls3955a71 4 bit shift register
7470a48b JK flip flop	74ls162d21a BCD decade counter	74ls5404cc0 Octal buffer 3-state
7472ac65 JK M/S flip flop	74ls1611432 Asynchronous 4 bit binary counter	74ls5404cc0 Octal buffer 3-state outputs
74ls73e711 Dual JK flip flop with clear	74ls164e63f 8 bit SIPO shift register
74ls74b7dc Dual D-Type flip-flops with preset and clear	74ls1657c21 8 bit PISO shift register
74ls756fbe 4 bit bi-stable latch	74ls166ee58 8 bit PISO shift register
74ls76b646 Dual JK flip-flops with preset and clear	74ls1743432 Hex D type flip flop with clear
74ls83b778 4 bit full adder	74ls1743432 Quad D type flip flop with clear

Microprocessor

EDN microprocessor/microcontroller directory

PIC16F84A3fcb Datasheet Get Started with your first PIC program

Linear ICs, Transistors, Active Components

55549f7 Timer / Oscillator	LM741e968 Op-Amp	uaf42985d Universal Active Filter
PN2222A-NPN77c0 NPN Transistor	2N3904NPN51b1 NPN Transistor	2N3906PNP082d PNP Transistor
mpq222210c1 NPN Transistor	MPQ2907A-QUAD-PNP4910 PNP Transistor	2N3819 JFETdeb3 JFET
NDP6060L5503 Logic Level FET 60V 48A N-Channel, 0.025ohm Rds @5Vgs	NDP6020P6240 Logic Level FET -20V 24A P-Channel, 0.05ohm Rds @4.5Vgs

Hobby

ISD1700h40f9 Single Chip Voice Record and Playback.

This is a very basic hobby project and can take less than an hour.

Optoelectronics

LED Polarity

7-Segment Display

TIL-321A 7-SEGMENTf51e

Other reference: http://en.wikipedia.org/wiki/Seven-segment_display

Capacitors

Polarized Capacitors

WARNING

REVERSE POLARITY OF ELECTROLYTIC & TANTALUM CAPACITORS CAN CAUSE
FIRE & EXPLOSION

Capacitors having a value of about 0.47 micro-farad or greater are often Electrolytic or Tantalum (polarized) types. This means that it is very important how they are connected. Polarized capacitors are almost always marked with the polarity on the body of the component. If the two capacitor leads are of different lengths then the longer of the two is usually the + (positive) terminal. Only non-polarized capacitors may be fitted to the breadboard or PCB either way, in the same way as resistors.

Surest way to damage an electrolytic capacitor is to reverse polarity at working voltage, self-destruction will occur and violent.

Use safety glasses and keep eyes and body parts away when applying power for the first time to a circuit that includes polarized capacitors. Discard any damaged parts.

General Capacitor Marking Table

IMPORTANT: Capacitors with values below 100 pf may be marked two ways: Either with just two digits (22 pF = "22") or three digits (22 pF = "220",). In the latter case the third digit signifies the number of zeros following the first two digits. "220" = 22 pF, "221" = 220 pF, "222" = 2200 pF.

VALUE	MARKING	VALUE	MARKING	VALUE	MARKING
1pf; 3pf; 5pf	1; 3; 5	2.7, 3 or 3.3 pF can be interchanged with each other. 4.7 or 5 pF can be interchanged with each other.	2.7, 3 or 3.3 pF can be interchanged with each other. 4.7 or 5 pF can be interchanged with each other.	2.7, 3 or 3.3 pF can be interchanged with each other. 4.7 or 5 pF can be interchanged with each other.	2.7, 3 or 3.3 pF can be interchanged with each other. 4.7 or 5 pF can be interchanged with each other.
10 pf	10or 100	0.001 uF	102	0.10 uF	104
12 pf	12or 120	0.0012uF (1200pf)	122	0.12 uF	124
15 pf	15or 150	0.0015uF	152	0.15 uf	154
18or 180	0.0018 uF (1800pf)	182	0.18 uF	184
22 pf	22or 220	0.0022uF	222	0.22 uF	224
27 pf	27or 270	0.0027uF	272	0.27 uF	274
33 pf	33or 330	0.0033 uF	332	0.33 uF	334
39 pf	39or 390	0.0039uF	392	0.39 uF	394
47 pf	47or 470	0.0047uF	472	0.47 uF	474
58 pf	58or 580	0.0056uF	562	0.56 uF	564
68 pf	68or 680	0.0068uF	682	0.68 uF	684
82 pf	82or 820	0.0082uF	822	0.82 uF	824
100 pf	101	0.01 uF	103	1uF	105 or 1uf
120 pf	121	0.012 uF	123
150 pf	151	0.015 uF	153
180 pf	181	0.018 uF	183
220 pf	221	0.022 uF	223
270 pf	271	0.027 uF	273
330 pf	331	0.033 uF	333
390 pf	391	0.039 uF	393
470 pf	471	0.047 uF	473
560 pf	561	0.056 uF	563
680 pf	681	0.068 uF	683
820 pf	821	0.082 uF	823

Resistors, Potentiometers, & Trimmers

References: http://en.wikipedia.org/wiki/Resistors

Through-Hole Resistors

Four-color-band axial resistors
Main article: Electronic color code
Four-band identification is the most commonly used color coding scheme on all resistors. It consists of four colored bands that are painted around the body of the resistor. The scheme is simple: The first two numbers are the first two significant digits of the resistance value, the third is a multiplier, and the fourth is the tolerance of the value. Each color corresponds to a certain number, shown in the chart below. The tolerance for a 4-band resistor will be 1%, 5%, or 10%

5-color-band axial resistors
5-band identification is used for higher precision (lower tolerance) resistors (1%, 0.5%, 0.25%, 0.1%), to notate the extra digit. The first three bands represent the significant digits, the fourth is the multiplier, and the fifth is the tolerance. 5-band standard tolerance resistors are sometimes encountered, generally on older or specialized resistors. They can be identified by noting a standard tolerance color in the 4th band. The 5th band in this case is the temperature coefficient

Surface Mount Resistors (SMT)

SMT resistors
This image shows two surface mount resistors
Surface mounted resistors are printed with numerical values in a code related to that used on axial resistors. Standard-tolerance Surface Mount Technology (SMT) resistors are marked with a three-digit code, in which the first two digits are the first two significant digits of the value and the third digit is the power of ten (the number of zeroes).

For example:
"334" = 33 × 10,000 ohms = 330 kiloohms
"222" = 22 × 100 ohms = 2.2 kiloohms
"473" = 47 × 1,000 ohms = 47 kiloohms
"105" = 10 × 100,000 ohms = 1 megaohm

Resistances less than 100 ohms are written: 100, 220, 470. The final zero represents ten to the power zero, which is 1. For example:
"100" = 10 × 1 ohm = 10 ohms
"220" = 22 × 1 ohm = 22 ohms
Sometimes these values are marked as "10" or "22" to prevent a mistake.

Resistances less than 10 ohms have 'R' to indicate the position of the decimal point (radix point). For example: "R003" = 0.003 ohms. This is very small value, generally used in current sense applications.
"4R7" = 4.7 ohms
"0R22" = 0.22 ohms
"0R01" = 0.01 ohms

Precision resistors are marked with a four-digit code, in which the first three digits are the significant figures and the fourth is the power of ten. For example:
"1001" = 100 × 10 ohms = 1 kiloohm
"4992" = 499 × 100 ohms = 49.9 kiloohm
"1000" = 100 × 1 ohm = 100 ohms