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BS870-7-F

Diodes Incorporated · MOSFETs · SOT-23

BS870-7-F from Diodes Incorporated, in a SOT-23. Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.

Pinout

Pin Name Type Function
1 G input Gate; controls the channel, with VGS(TH) 1.0 to 3.0 V and an absolute maximum VGSS of ±20 V continuous.
2 S passive Source terminal of the N-channel MOSFET; the current return path, with continuous drain current up to 250 mA.
3 D passive Drain terminal; VDSS is 60 V, continuous drain current is 250 mA and RDS(ON) is 5 Ω max at VGS = 10 V.

Key specifications

Parameter Value
Manufacturer Diodes Incorporated
Package SOT-23
Category Transistors/Thyristors
Pins 3

Electrical characteristics

Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).

Parameter Symbol Min Typ Max Unit Conditions Page
Drain-Source Breakdown Voltage BVDSS 60 80 V VGS = 0V, ID = 100A 2
Zero Gate Voltage Drain Current IDSS 0.5 µA VDS = 25V, VGS = 0V 2
Gate-Body Leakage IGSS 10 nA VGS = 15V, VDS = 0V 2
Gate Threshold Voltage VGS(TH) 1 2 3 V VDS = VGS, ID = 250A 2
Static Drain-Source On-Resistance RDS(ON) 3.5 5 Ω VGS = 10V, ID = 0.2A 2
On-State Drain Current ID(ON) 0.5 1 A VGS = 10V, VDS = 7.5V 2
Forward Transconductance gFS 80 ms VDS =10V, ID = 0.2A 2
Input Capacitance Ciss 22 50 pF VDS = 10V, VGS = 0V, f = 1.0MHz 2
Output Capacitance Coss 11 25 pF 2
Reverse Transfer Capacitance Crss 2 5 pF 2
Turn-On Delay Time tD(ON) 2 20 ns VES = 10V, RL = 150, 2
Turn-Off Delay Time tD(OFF) 5 20 ns VDS = 10V, RD = 100 2
Drain-Source Voltage VDSS 60 V 2
Drain-Gate Voltage VDGR 60 V RGS 1.0M 2
Gate-Source Voltage Continuous VGSS 20 V 2
Drain Current Continuous ID 250 mA Note 5 2
Total Power Dissipation PD 300 mW Note 5 2
Operating and Storage Temperature Range TJ, TSTG -55 150 C 2
Thermal Resistance, Junction to Ambient RJA 417 C/W 2

Materials and finish

As the datasheet states them (page.json metadata.appearance; the 3D model's colours follow it).

Part Material Colour / plating Datasheet says Page
contacts tin  Terminal Connections: See Diagram  Terminals: Matte Tin Finish Annealed over Alloy 42 Leadframe 1

CAD (KiCad official)

  • Symbol: BS870-7-F
  • Footprint: Package_TO_SOT_SMD:SOT-23
  • 3D model: SOT-23 (KiCad packages3D, STEP)
  • 3D model files: bs870-7-f-etched.step / bs870-7-f-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); bs870-7-f.step / bs870-7-f.glb are the bare package body.

Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

  • Datasheet: Diodes Incorporated datasheet (5 pp, sha256 ce64b219fdffc57f, retrieved 2026-10-19, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-sonnet-5-5 (text+vision), consensus claude-opus-5-5 (agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish.
  • CAD: KiCad official libraries (CC-BY-SA 4.0).

Datasheet PDF