from jitx import PadMapping
from jitx.anchor import Anchor
from jitx.component import Component
from jitx.landpattern import Landpattern, Pad
from jitx.layerindex import Side
from jitx.net import Port
from jitx.shapes.composites import rectangle
from jitx.shapes.primitive import Arc, ArcPolyline, Polygon, Polyline, Text
from jitx.feature import Finish, Paste, Silkscreen, Soldermask
from jitx.symbol import Direction, Pin, Symbol
[docs]
class RectSMDPad(Pad):
rect = rectangle(1.070003, 0.6)
shape = rect
layer = Paste(rect)
layer = Soldermask(rect)
[docs]
class C116157(Landpattern):
p = {
1: RectSMDPad().at(1.235077, -0.949962, on=Side.Top),
2: RectSMDPad().at(1.235077, 0.949962, on=Side.Top),
3: RectSMDPad().at(-1.235077, 0.0, on=Side.Top),
}
ref_text = Silkscreen(Text(">REF", 1.0, Anchor.C).at(0.0, 3.536195))
value_text = Finish(Text(">VALUE", 1.0, Anchor.C).at(0.0, -3.536195))
ref_alt_text = Finish(Text("REF**", 1.0, Anchor.C).at(0.0, -5.536195))
silk_lines = [
Silkscreen(Polyline(0.1524, [(0.876073, 1.536195), (-0.876327, 1.536195)])),
Silkscreen(Polyline(0.1524, [(-0.876327, -1.536195), (-0.876327, -0.49459)])),
Silkscreen(Polyline(0.1524, [(0.876073, 0.455398), (0.876073, -0.455398)])),
Silkscreen(Polyline(0.1524, [(0.876073, -1.536195), (-0.876327, -1.536195)])),
Silkscreen(Polyline(0.1524, [(-0.876327, 1.536195), (-0.876327, 0.49459)])),
]
silk_arcs = [
Silkscreen(
ArcPolyline(
0.059995, [Arc((1.399873, -1.459995), 0.0299970000000001, 0.0, 360.0)]
)
),
]
finish_arc = Finish(
ArcPolyline(0.2, [Arc((1.65113, -0.949962), 0.100077, 0.0, 360.0)])
)
# model = Model3D(
# "../../3d-models/C116157.wrl",
# position=(0, 0, 0),
# scale=(1, 1, 1),
# rotation=(0, 0, -180)
# )
[docs]
class BSN20_Symbol(Symbol):
pin_name_size = 0.6
pad_name_size = 0.6
G = Pin(at=(-2, -5), direction=Direction.Left, length=1) # Gate
S = Pin(at=(0, -6), direction=Direction.Down, length=1) # Source
D = Pin(at=(0, -4), direction=Direction.Up, length=1) # Drain
ref_text = Text(">REF", 1.27, Anchor.C).at(0.0, 1.27)
value_text = Text(">VALUE", 1.27, Anchor.C).at(0.0, -2.54)
# MOSFET symbol elements
# Gate line
gate_line = Polyline(0.0, [(-2, -5), (-1, -5)])
# Source line
source_line = Polyline(0.0, [(0, -5), (-1, -5)])
# Drain line
drain_line = Polyline(0.0, [(0, -4), (-1, -4)])
# Channel lines
channel_lines = [
Polyline(0.0, [(-1, -5), (0, -5), (0, -6), (1, -6), (1, -5)]),
Polyline(0.0, [(-1, -4), (0, -4), (0, -4), (1, -4), (1, -4)]),
]
# Arrow elements
arrows = [
Polyline(0.0, [(0.6, -4), (0.7, -4), (1.3, -4), (1.4, -4)]),
]
# Connection lines
connection_lines = [
Polyline(0.0, [(-1, -5), (-1, -5)]),
Polyline(0.0, [(-1, -5), (-1, -5)]),
Polyline(0.0, [(-1, -4), (-1, -4)]),
Polyline(0.0, [(-1, -5), (-1, -5)]),
Polyline(0.0, [(-1, -5), (-1, -5)]),
Polyline(0.0, [(-1, -4), (-1, -4)]),
]
# MOSFET symbol polygons
gate_polygon = Polygon([(-1, -5), (-0.4, -4), (-0.4, -5), (-1, -5)])
drain_polygon = Polygon([(1, -4), (1.3, -5), (0.7, -5), (1, -4)])
[docs]
class BSN20(Component):
"""N-channel enhancement mode field-effect transistor"""
mpn = "BSN20"
reference_designator_prefix = "Q"
G = Port() # Gate
S = Port() # Source
D = Port() # Drain
landpattern = C116157()
symbol = BSN20_Symbol()
# Pin mappings based on the pin-properties from the original Stanza file
mappings = [
PadMapping(
{
G: [landpattern.p[1]], # Gate to pin 1
S: [landpattern.p[2]], # Source to pin 2
D: [landpattern.p[3]], # Drain to pin 3
}
),
]
# Property for datasheet URL
datasheet = "https://datasheet.lcsc.com/lcsc/1811021114_Shikues-BSN20_C116157.pdf"
Device: type[BSN20] = BSN20
