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PiFire PCB BOM PWM June 2022
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ItemDescriptionNotesLink
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R110K 1/8 WattMost 1/4 Watt resistors will fithttps://www.digikey.com/en/products/detail/stackpole-electronics-inc/CF18JT10K0/1741566
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R2
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R3
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R4
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R5
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R6
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R710K 1/8 WattConsider getting some decent quality tolerance resistors for this given that accuracy is important(+/1 1%). Most 1/4 Watt will also fithttps://www.digikey.com/en/products/detail/te-connectivity-passive-product/YR1B10KCC/2389737?s=N4IgTCBcDaIJoCUCMAhJAGA0gYWyAugL5A
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R8
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R9
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R10
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R1110K 1/8 WattOptional I2C Pullups (not needed) Most 1/4 Watt resistors will fithttps://www.digikey.com/en/products/detail/stackpole-electronics-inc/CF18JT10K0/1741566
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R12
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R133 Ohm 3 WattStands up. I heatshrinked the longer lead down
https://www.digikey.com/en/products/detail/vishay-beyschlag-draloric-bc-components/AC03000003008JAC00/595434
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R144.7K 1/4 WattI already had these from a resistor kithttps://www.digikey.com/en/products/detail/stackpole-electronics-inc/CFM14JT4K70/1742213
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R15
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R161K 1/8 WattMost 1/4 Watt resistors will fithttps://www.digikey.com/en/products/detail/stackpole-electronics-inc/CF18JT1K00/1741612
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R1710K 1/8 WattMost 1/4 Watt resistors will fithttps://www.digikey.com/en/products/detail/stackpole-electronics-inc/CF18JT10K0/1741566
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R18 Currently UnusedThis is for tach input from the DC fan. It was added for future proofing/testing. It is a voltage divider circuit and the resistor values will depend on what the tach output voltage on your selected fan is.
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R19
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R20
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R21Not Required
This was a selector switch jumper but it is not required.
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K1G3MB-202PThere are many places to get these it was cheaper from amazon than DigiKey. Must be 5v controlhttps://www.amazon.com/dp/B082F8C1LX?psc=1&ref=ppx_yo2ov_dt_b_product_details
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K2
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K3
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F13.15A Slow Blow Fusehttps://www.digikey.com/en/products/detail/eaton-electronics-division/SS-5H-3-15A-APH/3719665
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F22A Slow Blow Fusehttps://www.digikey.com/en/products/detail/littelfuse-inc/39212000000/653505
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F3
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MOV1560 V 4.5 kA Varistorhttps://www.digikey.com/en/products/detail/epcos-tdk-electronics/B72214S0351K502/10263033
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PS1-12V12V PSU1.62A @ 12v AC to DChttps://www.digikey.com/en/products/detail/cui-inc/PSK-20D-12/13922491
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PS2-5V5V PSU2A @ 5v DC to DChttps://www.digikey.com/en/products/detail/cui-inc/P7805-2000-S/11569191
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https://www.digikey.com/en/products/detail/mornsun-america-llc/K7805-2000R3/13168283
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Q12N3904 TransistorI already had these from an Amazon kit but the DigiKey ones should workhttps://www.digikey.com/en/products/detail/onsemi/2N3904BU/1413
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Q2
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Q3
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Q4
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Q5MOSFET N-CH 30VDC Fan Power Controlhttps://www.digikey.com/en/products/detail/nexperia-usa-inc/PSMN4R3-30PL-127/2122715
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C11µF/50VShould be Ceramic Capacitorhttps://www.digikey.com/en/products/detail/tdk-corporation/FG28X5R1H105KRT06/5803193
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C210µF/25Vhttps://www.digikey.com/en/products/detail/rubycon/25MS710MEFC4X7/3562719
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C322μF/50VShould be Ceramic Capacitorhttps://www.digikey.com/en/products/detail/murata-electronics/RDEC71H226MWK1H03B/7362914
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C422μF/10VShould be Ceramic Capacitorhttps://www.digikey.com/en/products/detail/tdk-corporation/FK20X7R1A226MR000/2815384
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C510μF/16V
Optional. Is to help supply spike voltage on fan startup. I have not added or tested this yet
https://www.digikey.com/en/products/detail/panasonic-electronic-components/EEA-GA1C100B/2513288
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D1SA20A-TPMSCT-NDhttps://www.digikey.com/en/products/detail/micro-commercial-co/SA20A-TP/1200515
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RASPI
2X20 Female Pin Header
I already had these from other orders. You can get them on amazon etc.
https://www.mouser.com/ProductDetail/485-2222
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https://www.digikey.com/en/products/detail/sullins-connector-solutions/PPTC202LFBN-RC/807240
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ADS1115ADS1115
Header is soldered to ADS and PCB so it is low profile below the pi header
https://www.amazon.com/gp/product/B082QX1RDV/ref=ppx_yo_dt_b_asin_title_o02_s05?ie=UTF8&psc=1
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DISP9 Pin JST-XHI just bought a kit from Amazon with male and female connectors including pinshttps://www.amazon.com/gp/product/B07P96JMK5/ref=ppx_yo_dt_b_asin_title_o00_s01?ie=UTF8&th=1
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DIST4 Pin JST-XH
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INPUT5 Pin JST-XH
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FAN4 Pin JST-XH
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CN12 Pin JST-XH
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CN25 Pin JST-XH
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PWR Molexhttps://www.amazon.com/dp/B074G5PQHL?psc=1&ref=ppx_yo2ov_dt_b_product_details
or
https://www.digikey.com/en/products/detail/molex/0003097022/3071459
and
https://www.digikey.com/en/products/detail/molex/0002092103/26384
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AUG Molex
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IGN Molex
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FAN Molex
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120v Wire
Should be 16-18 awg. It is directly soldered to the board and anything larger than 16 awg will not fit through the holes
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DC FAN12V PWM
Fan should be 12v with a 5v PWM control signal. Note the Fan linked is 60x60mm. Larger grills will require a 120x120mm fan
https://www.digikey.com/en/products/detail/mechatronics-fan-group/F6025X12B1-6-FHR-EM/8119968
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J1STC02SYANhttps://www.digikey.com/en/products/detail/sullins-connector-solutions/STC02SYAN/76372
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