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Perfboard

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318: 302: 137: 341: 32: 154:. It is a thin, rigid sheet with holes pre-drilled at standard intervals across a grid, usually a square grid of 0.1 inches (2.54 mm) spacing. These holes are ringed by round or square copper pads, though bare boards are also available. Inexpensive perfboard may have pads on only one side of the board, while better quality perfboard can have pads on both sides ( 240:, nearby holes aren't connected, and the only hole in a pad is already occupied by a component's lead. Wires used range from isolated wires, including verowire (enameled copper wire with a polyurethane insulation supposed to melt when soldered), to bare copper wire, depending on individual preference, and often also on what is currently at hand in the workshop. 224:
layout can often be used to generate perfboard layouts as well. In this case, the designer positions the components so all leads fall on intersections of a 0.1 inches (2.54 mm) grid. When routing the connections more than 2 copper layers can be used, as multiple overlaps are not a problem for
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One school of thought advocates making as many connections as possible without adding extra wire. This is done by bending the existing leads on resistors, capacitors, etc. into position, trimming off extra length, and soldering the lead to make the required electrical connection. Another school of
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in that each pad on perfboard is isolated. Stripboard is made with rows of copper conductors that form default connections, which are broken into isolated segments as required by scraping through the copper. This is similar to the pattern of default connections on a solderless
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Once the layout is finalized, the components are soldered in their designated locations, paying attention to orientation of polarized parts such as electrolytic capacitors, diodes, and integrated circuits. Next, electrical connections are made as called for in the layout.
251:. A special stripping tool can be used, incorporating a thin steel blade with a slit that the wire is simply inserted into and then pulled loose, leaving a clean stripped end. This wire was developed initially for circuit assembly by the 290:. However, the absence of default connectivity on perfboard gives the designer more freedom in positioning components and lends itself more readily to software-aided design than stripboard or breadboard. 233:
thought refuses to bend the excess leads of components and use them for wiring, on the grounds that this makes removing a component later hard or impossible, e.g. when a repair is needed.
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Intentional solder bridges can be used to connect adjacent pads when necessary. Careful hand–eye coordination is needed to avoid causing inadvertent short circuits.
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technique but also serves well for miniature point-to-point wiring on perfboard. Bare copper wire is useful when merging a number of connections to form an
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Before building a circuit on perfboard, the locations of the components and connections are typically planned in detail on paper or with
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Circuits assembled on perfboard are not necessarily fragile but may be less impact-resistant than printed circuit boards.
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This article is about the electronics prototyping board. For the storage solution commonly used in shop and garages, see
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If extra wires are used, they are typically routed entirely on the copper side of perfboards, because, as opposed to
390: 53: 83: 42: 256: 203: 61: 46: 90: 221: 207: 163: 72: 148: 20: 248: 199: 151: 346: 175: 260: 155: 158:). Since each pad is electrically isolated, the builder makes all connections with either 264: 217:. Small scale prototypes, however, are often built ad hoc, using an oversized perfboard. 263:, and when there is enough space to properly route connections, instead of wiring them 243:
For insulated wires thin solid core wire with temperature-resistant insulation such as
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The 0.1 inches (2.54 mm) grid system accommodates integrated circuits in
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techniques. Discrete components are soldered to the prototype board such as
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Top of a copper clad Perfboard with solder pads for each hole.
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or Tefzel is preferred. The wire gauge is typically 24 - 30
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components. Perfboard is not designed for prototyping
186:) or a fiberglass-reinforced epoxy laminate ( 8: 16:Material for prototyping electronic circuits 60:. Unsourced material may be challenged and 124:Learn how and when to remove this message 297: 7: 58:adding citations to reliable sources 14: 311:(doesn't exist on all perfboards) 202:packages and many other types of 339: 316: 300: 30: 1: 307:Bottom of a perfboard with a 274:Comparison with similar items 327:circuit on perforated board 412: 18: 281:Perfboard differs from 396:Electronics work tools 386:Electronics substrates 259:such as the circuit's 141: 208:surface mount devices 164:point to point wiring 139: 54:improve this article 21:Perforated hardboard 176:integrated circuits 156:plate-through holes 152:electronic circuits 347:Electronics portal 147:is a material for 142: 391:Electronic design 225:insulated wires. 134: 133: 126: 108: 403: 349: 344: 343: 320: 304: 265:rat's-nest style 129: 122: 118: 115: 109: 107: 66: 34: 26: 411: 410: 406: 405: 404: 402: 401: 400: 376: 375: 374: 345: 338: 335: 328: 321: 312: 305: 296: 276: 196: 130: 119: 113: 110: 67: 65: 51: 35: 24: 17: 12: 11: 5: 409: 407: 399: 398: 393: 388: 378: 377: 373: 370: 369: 368: 362: 351: 350: 334: 331: 330: 329: 322: 315: 313: 306: 299: 295: 292: 275: 272: 257:electrical bus 215:software tools 195: 192: 180:phenolic resin 132: 131: 38: 36: 29: 15: 13: 10: 9: 6: 4: 3: 2: 408: 397: 394: 392: 389: 387: 384: 383: 381: 371: 366: 363: 360: 356: 353: 352: 348: 342: 337: 332: 326: 319: 314: 310: 303: 298: 293: 291: 289: 284: 279: 273: 271: 268: 266: 262: 258: 254: 250: 246: 241: 239: 234: 230: 226: 223: 220:Software for 218: 216: 211: 209: 205: 201: 193: 191: 189: 185: 181: 177: 173: 169: 165: 162:or miniature 161: 157: 153: 150: 146: 138: 128: 125: 117: 114:December 2009 106: 103: 99: 96: 92: 89: 85: 82: 78: 75: –  74: 70: 69:Find sources: 63: 59: 55: 49: 48: 44: 39:This article 37: 33: 28: 27: 22: 367:(Protoboard) 309:ground plane 280: 277: 269: 242: 235: 231: 227: 219: 212: 204:through-hole 197: 144: 143: 120: 111: 101: 94: 87: 80: 68: 52:Please help 40: 238:stripboards 194:Connections 149:prototyping 73:"Perfboard" 380:Categories 372:References 365:Breadboard 355:Stripboard 288:breadboard 283:stripboard 182:(such as 172:capacitors 84:newspapers 359:Veroboard 325:555 timer 253:wire wrap 168:resistors 160:wire wrap 145:Perfboard 41:does not 333:See also 294:Gallery 98:scholar 62:removed 47:sources 261:ground 174:, and 100:  93:  86:  79:  71:  245:Kynar 105:JSTOR 91:books 188:FR-4 184:FR-2 77:news 45:any 43:cite 249:AWG 222:PCB 200:DIP 190:). 56:by 382:: 323:A 267:. 210:. 170:, 361:) 357:( 127:) 121:( 116:) 112:( 102:· 95:· 88:· 81:· 64:. 50:. 23:.

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prototyping
electronic circuits
plate-through holes
wire wrap
point to point wiring
resistors
capacitors
integrated circuits
phenolic resin
FR-2
FR-4
DIP
through-hole
surface mount devices
software tools

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