component

BC857A-7-F

Public Made by Adom

by adom

Diodes Incorporated Bipolar Transistors - BJT, SOT-23. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

componenttransistorsbc857a-7-ffactory-2.0.0extractor-text

Changed since verified BC857A-7-F

by Ray · last 10 Nov 2026 · 1 record · files changed since
SymbolFootprint3D modelPins

Verification log 1 record

10 Nov 2026RayPublished by the parts factory: tier mfr, 3 pinschanged since
SymbolFootprint3D modelPinsfor all variants
  • ✓component-page-verify: PASS
  • ✓cad_props: Datasheet, MPN and distributor properties match page.json
  • ✓component: BC857A-7-F · SOT-23 · 3 pins
  • ✓copper: 3 copper pads, none touching another net
  • ✓datasheet: all 3 pin names found in the 7-page datasheet
  • ✓distributor: lcsc C460181, digikey BC857A-7FDITR-ND, mouser 621-BC857A-7-F
  • ✓family: SOT-23
  • ✓files: 7 declared files present
  • ✓hero: docs/hero.png 4000x2500
  • ✓lbr: OK: /tmp/cpv-f_i29g0t/x.lbr is a valid EAGLE .lbr with complete deviceset
  • ✓license: CC-BY-SA-4.0
  • ✓models_3d: 2 records
  • •package_fit (skip): no component.package_dims on the page: the model is unchecked against the datasheet drawing
  • ✓pads: 3 pins = 3 pads
  • ✓pose: 2 STEP(s) Z-up, seated, centred
  • ✓symbol: 3 pins agree
  • ✓symbol_text: no pin names collide
  • ✓viewers: viewers/footprint.html 17 kB, viewers/symbol.html 7 kB
  • ✓visibility: public, source open
Evidencedatasheet
Verified files! bc857a-7-f.kicad_sym✓ bc857a-7-f.kicad_mod✓ bc857a-7-f.step
Spot something wrong? Report it as an issue Propose a fix Records are signed by members of adom.
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← Commit history

Publish 0.1.1

Ray ·5b00bb0294 · ·parent 5a4dafe
2 files changed +404−10
package.json+397−4page.json+7−6
package.json+397−4
@@ -1,6 +1,6 @@ {   "slug": "bc857a-7-f",-  "version": "0.1.0",+  "version": "0.1.1",   "type": "component",   "description": "Diodes Incorporated Bipolar Transistors - BJT, SOT-23. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",   "tags": [@@ -29,7 +29,8 @@     "viewers/footprint.html",     "bc857a-7-f-hero.glb",     "bc857a-7-f-hero.overlay.json",-    "bc857a-7-f-etched.glb"+    "bc857a-7-f-etched.glb",+    "bc857a-7-f-etched.step"   ],   "component": {     "mpn": "BC857A-7-F",@@ -43,7 +44,7 @@       "symbol": "bc857a-7-f.kicad_sym",       "footprint": "bc857a-7-f.kicad_mod",       "model_3d": "bc857a-7-f-hero.glb",-      "model_3d_plain": "bc857a-7-f-etched.glb",+      "model_3d_plain": "bc857a-7-f.glb",       "model_3d_step": "bc857a-7-f-etched.step",       "model_3d_step_plain": "bc857a-7-f.step",       "lbr": "bc857a-7-f.lbr"@@ -161,5 +162,397 @@         "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"       }     ]-  }+  },+  "title": "BC857A-7-F",+  "brief": "Diodes Incorporated Bipolar Transistors - BJT, SOT-23. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",+  "metadata": {+    "specs": {+      "Manufacturer": "Diodes Incorporated",+      "Package": "SOT-23",+      "Category": "Transistors",+      "Pins": "3"+    },+    "appearance": {+      "contacts": {+        "quote": "• Terminals: Finish – Matte Tin Plated Leads, Solderable per MIL-STD-202, Method 208",+        "page": 1,+        "doc": "ds.pdf",+        "plating": "tin"+      },+      "version": 1,+      "datasheet_sha256": "9f19c49db2adb724bc631bfb8e9011f0aa90a067b7d51e912f7278bcb576a97c"+    },+    "characteristics": {+      "version": 1,+      "source": "datasheet",+      "datasheet_sha256": "9f19c49db2adb724bc631bfb8e9011f0aa90a067b7d51e912f7278bcb576a97c",+      "rows": [+        {+          "name": "Collector-Base Breakdown Voltage",+          "symbol": "BVCBO",+          "kind": "electrical",+          "unit": "V",+          "min": -50,+          "typ": null,+          "max": null,+          "conditions": "IC = -10µA",+          "source_page": 4,+          "source": "datasheet"+        },+        {+          "name": "Collector-Emitter Breakdown Voltage",+          "symbol": "BVCEO",+          "kind": "electrical",+          "unit": "V",+          "min": -45,+          "typ": null,+          "max": null,+          "conditions": "IC = -10mA",+          "source_page": 4,+          "source": "datasheet"+        },+        {+          "name": "Emitter-Base Breakdown Voltage",+          "symbol": "BVEBO",+          "kind": "electrical",+          "unit": "V",+          "min": -5,+          "typ": null,+          "max": null,+          "conditions": "IE = -1µA",+          "source_page": 4,+          "source": "datasheet"+        },+        {+          "name": "Collector Cutoff Current",+          "symbol": "ICBO",+          "kind": "electrical",+          "unit": "nA",+          "min": null,+          "typ": null,+          "max": -15,+          "conditions": "VCB = -30V",+          "source_page": 4,+          "source": "datasheet"+        },+        {+          "name": "Collector Cutoff Current",+          "symbol": "ICBO",+          "kind": "electrical",+          "unit": "µA",+          "min": null,+          "typ": null,+          "max": -4,+          "conditions": "VCB = -30V, TJ = +150°C",+          "source_page": 4,+          "source": "datasheet"+        },+        {+          "name": "Collector Emitter Cutoff Current",+          "symbol": "ICES",+          "kind": "electrical",+          "unit": "nA",+          "min": null,+          "typ": null,+          "max": -15,+          "conditions": "VCE = -50V",+          "source_page": 4,+          "source": "datasheet"+        },+        {+          "name": "Emitter-Base Cutoff Current",+          "symbol": "IEBO",+          "kind": "electrical",+          "unit": "nA",+          "min": null,+          "typ": null,+          "max": -100,+          "conditions": "VEB = -5V",+          "source_page": 4,+          "source": "datasheet"+        },+        {+          "name": "DC Current Gain",+          "symbol": "hFE",+          "kind": "electrical",+          "unit": "",+          "min": 125,+          "typ": 180,+          "max": 250,+          "conditions": "IC = -2.0mA, VCE = -5V",+          "source_page": 4,+          "source": "datasheet"+        },+        {+          "name": "Collector-Emitter Saturation Voltage",+          "symbol": "VCE(sat)",+          "kind": "electrical",+          "unit": "mV",+          "min": null,+          "typ": -75,+          "max": -300,+          "conditions": "IC = -10mA, IB = -0.5mA",+          "source_page": 4,+          "source": "datasheet"+        },+        {+          "name": "Collector-Emitter Saturation Voltage",+          "symbol": "VCE(sat)",+          "kind": "electrical",+          "unit": "mV",+          "min": null,+          "typ": -250,+          "max": -650,+          "conditions": "IC = -100mA, IB = -5.0mA",+          "source_page": 4,+          "source": "datasheet"+        },+        {+          "name": "Base-Emitter Turn-On Voltage",+          "symbol": "VBE(on)",+          "kind": "electrical",+          "unit": "mV",+          "min": -600,+          "typ": -650,+          "max": -750,+          "conditions": "IC = -2mA, VCE = -5V",+          "source_page": 4,+          "source": "datasheet"+        },+        {+          "name": "Base-Emitter Turn-On Voltage",+          "symbol": "VBE(on)",+          "kind": "electrical",+          "unit": "mV",+          "min": null,+          "typ": null,+          "max": -820,+          "conditions": "IC = -10mA, VCE = -5V",+          "source_page": 4,+          "source": "datasheet"+        },+        {+          "name": "Base-Emitter Saturation Voltage",+          "symbol": "VBE(sat)",+          "kind": "electrical",+          "unit": "mV",+          "min": null,+          "typ": -700,+          "max": null,+          "conditions": "IC = -10mA, IB = -0.5mA",+          "source_page": 4,+          "source": "datasheet"+        },+        {+          "name": "Base-Emitter Saturation Voltage",+          "symbol": "VBE(sat)",+          "kind": "electrical",+          "unit": "mV",+          "min": null,+          "typ": -850,+          "max": -1100,+          "conditions": "IC = -100mA, IB = -5mA",+          "source_page": 4,+          "source": "datasheet"+        },+        {+          "name": "Output Capacitance",+          "symbol": "Cobo",+          "kind": "electrical",+          "unit": "pF",+          "min": null,+          "typ": 3,+          "max": null,+          "conditions": "VCB = -10V, f = 1.0MHz",+          "source_page": 4,+          "source": "datasheet"+        },+        {+          "name": "Transition Frequency",+          "symbol": "fT",+          "kind": "electrical",+          "unit": "MHz",+          "min": 100,+          "typ": 200,+          "max": null,+          "conditions": "VCE = -5V, IC = -10mA, f = 100MHz",+          "source_page": 4,+          "source": "datasheet"+        },+        {+          "name": "Noise Figure",+          "symbol": "NF",+          "kind": "electrical",+          "unit": "dB",+          "min": null,+          "typ": 2,+          "max": 10,+          "conditions": "VCE = -5V, IC = -200µA, RS = 2kΩ, f = 1kHz, Δf = 200Hz",+          "source_page": 4,+          "source": "datasheet"+        },+        {+          "name": "Collector-Base Voltage",+          "symbol": "VCBO",+          "kind": "absolute_maximum",+          "unit": "V",+          "min": null,+          "typ": null,+          "max": -50,+          "conditions": "BC857A/B/C",+          "source_page": 2,+          "source": "datasheet"+        },+        {+          "name": "Collector-Emitter Voltage",+          "symbol": "VCEO",+          "kind": "absolute_maximum",+          "unit": "V",+          "min": null,+          "typ": null,+          "max": -45,+          "conditions": "BC857A/B/C",+          "source_page": 2,+          "source": "datasheet"+        },+        {+          "name": "Emitter-Base Voltage",+          "symbol": "VEBO",+          "kind": "absolute_maximum",+          "unit": "V",+          "min": null,+          "typ": null,+          "max": -5,+          "conditions": "",+          "source_page": 2,+          "source": "datasheet"+        },+        {+          "name": "Continuous Collector Current",+          "symbol": "IC",+          "kind": "absolute_maximum",+          "unit": "mA",+          "min": null,+          "typ": null,+          "max": -100,+          "conditions": "",+          "source_page": 2,+          "source": "datasheet"+        },+        {+          "name": "Peak Collector Current (Single Pulse)",+          "symbol": "ICM",+          "kind": "absolute_maximum",+          "unit": "mA",+          "min": null,+          "typ": null,+          "max": -200,+          "conditions": "Single pulse",+          "source_page": 2,+          "source": "datasheet"+        },+        {+          "name": "Peak Emitter Current",+          "symbol": "IEM",+          "kind": "absolute_maximum",+          "unit": "mA",+          "min": null,+          "typ": null,+          "max": -200,+          "conditions": "",+          "source_page": 2,+          "source": "datasheet"+        },+        {+          "name": "Peak Base Current (Single Pulse)",+          "symbol": "IBM",+          "kind": "absolute_maximum",+          "unit": "mA",+          "min": null,+          "typ": null,+          "max": -200,+          "conditions": "Single pulse",+          "source_page": 2,+          "source": "datasheet"+        },+        {+          "name": "Operating and Storage Temperature Range",+          "symbol": "TJ, TSTG",+          "kind": "absolute_maximum",+          "unit": "°C",+          "min": -55,+          "typ": null,+          "max": 150,+          "conditions": "",+          "source_page": 2,+          "source": "datasheet"+        },+        {+          "name": "Power Dissipation",+          "symbol": "PD",+          "kind": "thermal",+          "unit": "mW",+          "min": null,+          "typ": null,+          "max": 310,+          "conditions": "Note 5, minimum recommended pad layout on FR-4",+          "source_page": 2,+          "source": "datasheet"+        },+        {+          "name": "Power Dissipation",+          "symbol": "PD",+          "kind": "thermal",+          "unit": "mW",+          "min": null,+          "typ": null,+          "max": 350,+          "conditions": "Note 6, 15mm x 15mm 1oz copper",+          "source_page": 2,+          "source": "datasheet"+        },+        {+          "name": "Thermal Resistance, Junction to Ambient",+          "symbol": "RθJA",+          "kind": "thermal",+          "unit": "°C/W",+          "min": null,+          "typ": null,+          "max": 403,+          "conditions": "Note 5, minimum recommended pad layout on FR-4",+          "source_page": 2,+          "source": "datasheet"+        },+        {+          "name": "Thermal Resistance, Junction to Ambient",+          "symbol": "RθJA",+          "kind": "thermal",+          "unit": "°C/W",+          "min": null,+          "typ": null,+          "max": 357,+          "conditions": "Note 6, 15mm x 15mm 1oz copper",+          "source_page": 2,+          "source": "datasheet"+        },+        {+          "name": "Thermal Resistance, Junction to Leads",+          "symbol": "RθJL",+          "kind": "thermal",+          "unit": "°C/W",+          "min": null,+          "typ": null,+          "max": 350,+          "conditions": "Note 7, junction to solder-point",+          "source_page": 2,+          "source": "datasheet"+        }+      ]+    }+  },+  "discovery_triggers": [+    "bc857a-7-f"+  ],+  "discovery_pitch": "BC857A-7-F (Diodes Incorporated) component page: datasheet pinout, KiCad symbol, footprint and 3D.",+  "visibility": "public" }
page.json+7−6
@@ -4,7 +4,7 @@   "slug": "bc857a-7-f",   "title": "BC857A-7-F",   "brief": "Diodes Incorporated Bipolar Transistors - BJT, SOT-23. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",-  "version": "0.1.0",+  "version": "0.1.1",   "license": "CC-BY-SA-4.0",   "tags": [     "component",@@ -25,7 +25,7 @@       "symbol": "bc857a-7-f.kicad_sym",       "footprint": "bc857a-7-f.kicad_mod",       "model_3d": "bc857a-7-f-hero.glb",-      "model_3d_plain": "bc857a-7-f-etched.glb",+      "model_3d_plain": "bc857a-7-f.glb",       "model_3d_step": "bc857a-7-f-etched.step",       "model_3d_step_plain": "bc857a-7-f.step",       "lbr": "bc857a-7-f.lbr"@@ -564,9 +564,10 @@     "viewers/footprint.html",     "bc857a-7-f-hero.glb",     "bc857a-7-f-hero.overlay.json",-    "bc857a-7-f-etched.glb"+    "bc857a-7-f-etched.glb",+    "bc857a-7-f-etched.step"   ],-  "visibility": {-    "public": true-  }+  "visibility": "public",+  "description": "Diodes Incorporated Bipolar Transistors - BJT, SOT-23. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",+  "org": "adom" }\ No newline at end of file