Components Store

A sizable inventory of electronic components was purchased for Hackersmart, with the goal that the unsold portion thereof would seed HacDC's electronics lab. This has come to pass, and the components are arranged on a pegboard by the soldering desk. This page is to explain what's available, how much it costs, where to get more, and as a place to request additions to the store.

Pricing is intended to cover our cost and shipping, and to make the store self-sustaining like the fridge. These are internal "member's prices", and may not reflect what we charge at conferences, where there's an understanding that purchases actively help HacDC.

Current Inventory

Component	Supplier	partno	our cost	retail price	department
resistors	Mouser/BG	partno	1.4c ($2.95 for 200)	2c	6
100-ohm trim pots	All Electronics	TPK-100	10c	25c	6
100k trim pots	All Electronics	TP-100k	10c	25c	6
0.1uF 'decoupling' caps	Mouser	K104K15X7RF53H5	5c	5c	6
4.7uF capacitors	Mouser	647-UVR1H4R7MDD1TD	4c	5c	6
47uF capacitors	All Electronics	47R10	4c	5c	6
Misc caps (grab box)	Goldmine	G3060	1c?	5c	6
56uH inductors	Goldmine	G16521	35c	50c	6
Red/Grn/Yel 3mm LEDs	MPJA	15101/15102/15103 OP	2c	5c	6
Red/Grn/Yel 5mm LEDs	MPJA	15108/15308/15309 OP	2c	5c	6
Aqua LEDs	Goldmine	G16645	25c	50c	6
Infrared LEDs	supplier	partno	cost	price	6
Ultraviolet LEDs	supplier	partno	cost	price	6
12MHz crystal	Goldmine	G3840	1.50	2.00	6
1xAA holder	Mouser	12BH311-GR	0.69	1.00	7
2xAA holder	Mouser	12BH321D	0.67	1.00	7
4xAA holder	Mouser	12BH351-R	0.99	1.50?	7
9V battery snap	MPJA	2600BT	0.29	0.50	7
SPDT pushbutton PCB mount	Goldmine	G14045	$1/5	0.25	7
SPDT pushbutton panel mount	MPJA	5019SW	0.29	0.50	7
DPDT slide	Goldmine	G1827	5/$1	0.25	7
DPDT 5v relay	All Electronics	RLY-506	0.70	1.00	7
2.1mm DC power jack	supplier	partno	cost	price	7
2.1mm DC power plug	All Electronics	DCSID	0.50	0.50	7
2.5mm DC power jack	All Electronics	DCJ-6	0.20	0.25	7
2.5mm DC power plug	supplier	partno	cost	price	7
2.5mm (3/32") stereo plug	supplier	partno	cost	price	7
3.5mm (1/8") stereo plug	supplier	partno	cost	price	7
3.5mm (1/8") stereo jack	Goldmine	GP3	50/$2.49	0.25	7
USB B jack	Mouser	649-61729-1010BLF	0.50	1.00	7
8-pin DIP sockets	Digi-Key	3M5461-ND	0.156	0.25	7
14-pin DIP sockets	Digi-Key	3M5462-ND	0.13	0.25	7
20-pin DIP sockets	Digi-Key	3M5465-ND	0.18	0.25	7
28-pin DIP sockets	Digi-Key	3M5469-ND	0.23	0.50	7
0.100" headers	Goldmine	GP6	50/$2.49	0.25	7?
830-point breadboard	MPJA	4443TE	3.95 in qty 10	5.00	8
small perfboard	All Electronics	PC-1	0.75	1.00	8
large perfboard	BG Micro	ACS1052	1.95	3.00?	8
crappy clipleads	Goldmine	G1498	10/$2	25c	8
Minigrabbers (yellow)	DealExtreme	sku.8391	30/$7.41	50c	8
Micrograbbers (red/black)	DealExtreme	sku.7892	20/$6.10	50c	8
7805 regulator	Mouser	512-LM7805ACT	0.31	0.50	9
78L05 regulator	Mouser	512-LM78L05ACZX	0.18	0.50	9
7812 regulator	Mouser	512-LM7812ACT	0.31	0.50	9
LM317 adj reg	Mouser	511-LM317MT	0.30	0.50	9
1n914/1n4148 diode	Goldmine	G13807	100/$1	5c	9
1n4007 diode	MPJA	5217DI	0.07	0.10	9
Zener diodes	BG Micro	partno	0.12	0.25	9
2n3904 NPN transistor	BG Micro	TRN2N3904	0.06	0.25	9
2n3905 PNP transistor	Goldmine	G43374	0.12	0.25	9
LM358 opamp	Mouser	512-LM358N	0.25	0.50	9
LM1458 dual opamp	Mouser	512-LM1458CN	0.33	0.50	9
LM393 dual comparator	All Electronics	LM393	0.30	0.50	9
LM555 timer	Mouser	512-LM555CN	0.22	0.50	9
ADM202 RS232 transceiver	All Electronics	ADM202EAN	0.75	1.00	9
4n33 optoisolator	Mouser	78-4N33	0.32	0.50	9
LM386 audio amp	Mouser	513-NJM#386BD	0.42	0.50	9
MC34063 switching power supply controller	Mouser	863-MC34063AP1G	0.70	1.50	9
AVR microcontrollers	I'm gonna leave this to Elliot or TC				10
Hantronix HDM16216H-5-300S 2x16 LCD no backlight	Goldmine	G16717	2.95	5.00	11
0.6 amp Polyfuse	Mouser	576-60R065XU	0.24	0.50	11
1.1 amp Polyfuse	Mouser	576-30R110UU	0.26	0.50	11
CF-IDE 44-pin	DealExtreme	sku.10310	2.26	3.00	15
CF-IDE 40-pin male	DealExtreme	sku.10309	2.09	3.00	15
CF-IDE 40-pin female	DealExtreme	sku.2720	2.16	3.00	15
CF-IDE 40-pin male on bracket	DealExtreme	sku.10311	3.52	5.00	15
2.5-to-3.5-inch IDE adapter	DealExtreme	sku.727	1.33	2.00	15
2GB CF card	DealExtreme	sku.12352	22.12	30.00	15
1GB MicroSD (TransFlash)	DealExtreme	sku.1458	5.43	7.00	15
2GB MicroSD (TransFlash)	DealExtreme	sku.2934	9.22	12.00	15
SDHC-to-USB adapter	DealExtreme	sku.6858	2.52	3.00	15
All-in-one USB memory reader	DealExtreme	sku.2708	4.87	5.00	15

Proposed Additional Inventory

Component	Supplier	partno	our cost	retail price	department	QTY Desired
IRFZ20 MOSFET	TBD
H-Bridges	TBD	(SN754410, aka L293)
piezo elements	TBD
22 AWG hookup wire	TBD
TBD Light Sensor	TBD
TIP102 Transistor	TBD
USBtinyISP AVR Programmer Kit	adafruit.com		$22
AVR Programming Adapter	Sparkfun.com	BOB-08508	$0.99
Infrared Emitters and Detectors	Sparkfun.com	SEN-00241	$1.95
8-Bit Shift w/Latch	Mouser	595-SN74HC595N	$0.66
5.6v Zener Diode	Mouser	512-1N5232B	$0.06
10-pin bussed 10K-100K resistor network	Mouser	266-100K-RC	$0.25
L293D Dual H-Bridge	Mouser	595-L293DNE	$2.74
5-position 5.08 terminal block	Mouser	538-39880-0303	$077
2-position 5.08 terminal block	Mouser	538-39880-0302	$0.46
cisco 48V power supplies	http://tinyurl.com/6n4z8b		$10ea-ish
Darlington array	Mouser	511-ULN2801A	$0.91
Opto-Isolator	Mouser	782-139	$1.12
Power Transistor	Mouser	511-2N3055	$1.40
74C CMOS Logic Hex Schmitt Trigger	Mouser	512-MM74C14N	$0.72
LED Assortment	Alan Parakh	http://alan-parekh.vstore.ca/product_info.php/cPath/4_8/products_id/31	$25
IRL3713PBF MOSFET 30V/260A continuous drain current, very low gate voltage	Newark Electronics	http://www.newark.com/ or Mouser 844-IRL3713PBF	$4

Suppliers:

Mouser and Digi-Key are the "big guns" of the hobbyist and small professional electronics market, with breathtaking inventories, fast order fulfillment, and sophisticated websites. Digi-Key adds a handling fee to orders under $25.

Marlin P. Jones & Associates is a smaller web retailer specializing in power supplies, but with a fair assortment of other stuff too. Their prices on breadboards are hard to beat. (Thanks Jon for that tip!)

All Electronics has been in the surplus electronics game for a long time, with a small newsprint catalog that's a staple in many geeks' bathrooms. As with any surplus dealer, their inventory is constantly in flux, and sometimes they have really amazing deals.

B.G. Micro (known pre-9/11 as "The Electronics Mecca", now calls itself "The Electronics Supplier") is a small mostly-surplus dealer whose bright yellow catalog offers Texas humor mixed with eyestrain. Their shopping cart software is chaotic evil, but they have great prices, particularly on industrial stuff like thermal fuses and zener diodes.

Electronics Goldmine has a better selection of motors, magnets, and boxes than almost anyone else. They offer "GoldPaks", grab-bags and assortments of surplus (sometimes take-outs) hardware, some of which are so-so deals and some of which are simply jawdropping.