Components Store

From HacDC Wiki

Revision as of 10:51, 5 August 2008 by (talk) (work in progress)

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.

Cash Register Departments

Department Stuff
1 Canned drinks
2 Bottled water
3 Gatorade
4 Other drinks/snacks
5 Tipjar into register
6 Passives (resistors/caps/LEDs/crystals/inductors)
7 Wire, battery holders, switches, relays, connectors, sockets
8 Protoboards (breadboards), perfboards, clipleads
9 ICs except microcontrollers
10 Microcontrollers and dev kits
11 Specialty (LCDs, sensors, polyfuses)
12 Kits
13 Cables
14 Tools
15 Optical media, flash memory, CF adapters, memory readers
16 Services / misc

Current Inventory

(Note: I (Nate) don't have the actual ordering receipts so I don't have part numbers for some of this stuff, I'll fill in what I can.)

Component Supplier partno our cost retail price department
resistors Mouser/BG partno 1.4c ($2.95 for 200) 2c 6
trim pots All Electronics TPK-100 / TPK-100k 10c 25c 6
0.1uF 'decoupling' caps Mouser K104K15X7RF53H5 5c 5c 6
4.7uF capacitors Mouser partno 2c 5c 6
47uF capacitors All Electronics partno 4c 5c 6
Misc caps (grab box) Goldmine G3060 1c? 5c 6
35uH 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 partno 0.29 0.50 7
SPDT pushbutton PCB mount Goldmine G14045 $1/5 0.25 7
SPDT pushbutton panel mount MPJA partno 0.29 0.50 7
DPDT slide Goldmine partno 5/$1 0.25 7
DPDT 5v relay supplier partno cost price 7
2.1mm DC power jack supplier partno cost price 7
2.1mm DC power plug supplier partno cost price 7
2.5mm DC power jack supplier partno cost price 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 partno 0.50 7
DIP sockets These came in on Q's Digi-Key order...
0.100" headers Goldmine GP6 50/$2.49 0.25 7?
830-point breadboard MPJA partno 3.95 in qty 10 5.00 8
small perfboard All Electronics partno 0.75 8
large perfboard BG Micro partno 2.00 3.00? 8
crappy clipleads Goldmine partno 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 partno 0.31 0.50 9
78L05 regulator Mouser partno 0.18 0.50 9
7812 regulator Mouser partno 0.31 0.50 9
LM317 adj reg Mouser partno 0.30 0.50 9
1n914/1n4148 diode Goldmine partno 100/$1 5c 9
1n4007 diode MPJA partno 0.07 0.10 9
Zener diodes BG Micro partno 0.12 0.25 9
2n3904 NPN transistor BG Micro partno 0.06 0.25 9
2n3905 PNP transistor Goldmine partno 0.12 0.25 9
LM358 opamp Mouser partno 0.25 0.50 9
LM1458 dual opamp Mouser partno 0.33 0.50 9
LM393 dual comparator All Electronics partno 0.30 0.50 9
LM555 timer Mouser partno 0.22 0.50 9
ADM202 RS232 transceiver All Electronics partno 0.75 9
4n33 optoisolator Mouser partno 0.32 0.50 9
LM386 audio amp Mouser partno 0.42 0.50 9
AVR microcontrollers I'm gonna leave this to Elliot


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.