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Std edition Crowbar - 5V

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License: CERN Open Hardware License

Published Time: 2020-07-22 08:35:59
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Description

A 5-volt crowbar. Typically used to protect a circuit against voltage surges. Uses precision voltage reference to limit voltage output to 5.2 volts. Will automatically reset when the voltage surge is removed.

design drawing
schematic diagram
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ID Name Designator Footprint Quantity BOM_Supplier BOM_Manufacturer BOM_Manufacturer Part BOM_Supplier Part
1 5VDC In J1 LYNX_HEADER, PLUG-1.5X2 VERT 1 Digi-Key Onshore OSTOQ023250 ED2819-ND
2 5VDC Out J2 LYNX_HEADER, PLUG-1.5X2 VERT 1 Digi-Key Onshore OSTOQ023250 ED2819-ND
3 Green LED1 LED0805-RD 1 LCSC KENTO 0805G (Green) C2297
4 LM431 U1 SOT-23-3_L2.9-W1.3-P1.90-LS2.4-BR 1 LCSC Texas Instruments LM431CIM3X/NOPB C132067
5 Triac Q1 SOT-223_L6.5-W3.5-P2.30-LS7.0-BR 1 LCSC STMicroelectronics Z0103MN5AA4 C163595
6 220R R3,R4 R0805 2 LCSC UniOhm 0805W8F2200T5E C17557
7 4.64k R2 R0805 1 LCSC Uniroyal Elec 0805W8F4641T5E C17671
8 5.11k R1 R0805 1 LCSC Uniroyal Elec 0805W8F5111T5E C46039
9 TVS-SMBJ5 D1 SMB_L4.6-W3.6-LS5.3-RD 1 LCSC Littelfuse SMBJ5.0A C83333
10 2A Hold F1 F1812 1 LCSC RUILON SMD1812P200TF16 C20812

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