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BR4953D-A

Foshan Blue Rocket Elec · MOSFETs · SOP-8

BR4953D-A from Foshan Blue Rocket Elec, in a SOP-8. 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 S1 passive Source terminal of P-channel MOSFET 1; the datasheet gives no pin-specific limit, and the device ratings are VDSS -20 V and VGSS ±12 V.
2 G1 input Gate terminal of P-channel MOSFET 1; the gate-source voltage is rated at ±12 V (VGSS) in the absolute maximum ratings.
3 S2 passive Source terminal of P-channel MOSFET 2; the datasheet gives no pin-specific limit, and the device ratings are VDSS -20 V and VGSS ±12 V.
4 G2 input Gate terminal of P-channel MOSFET 2; the gate-source voltage is rated at ±12 V (VGSS) in the absolute maximum ratings.
5 D2 passive Drain terminal of P-channel MOSFET 2, internally paired with pin 6; the drain-source voltage is rated at -20 V (VDSS).
6 D2 passive Drain terminal of P-channel MOSFET 2, internally paired with pin 5; the drain-source voltage is rated at -20 V (VDSS).
7 D1 passive Drain terminal of P-channel MOSFET 1, internally paired with pin 8; the drain-source voltage is rated at -20 V (VDSS).
8 D1 passive Drain terminal of P-channel MOSFET 1, internally paired with pin 7; the drain-source voltage is rated at -20 V (VDSS).

Key specifications

Parameter Value
Manufacturer Foshan Blue Rocket Elec
Package SOP-8
Category Transistors/Thyristors
Pins 8

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 Voltage VDSS -20 V 2
Gate-Source Voltage VGSS -12 12 V 2
Continuous Drain Current ID -3 A Surface Mounted on 1in2 pad area, t ≤ 10sec 2
Pulsed Drain Current IDM -12 A Surface Mounted on 1in2 pad area, t ≤ 10sec 2
Diode Continuous Forward Current IS -2 A Surface Mounted on 1in2 pad area, t ≤ 10sec 2
Power Dissipation for Single Operation PD 2 W Ta=25℃, Surface Mounted on 1in2 pad area, t ≤ 10sec 2
Power Dissipation for Single Operation PD 0.8 W Ta=100℃, Surface Mounted on 1in2 pad area, t ≤ 10sec 2
Maximum Junction Temperature Tj 150 ℃ 2
Storage Temperature Range Tstg -55 150 ℃ 2
Thermal Resistance-Junction to Ambient RθJA 62.5 ℃/W Surface Mounted on 1in2 pad area, t ≤ 10sec 2
Drain-Source Breakdown Voltage BVDSS -20 V VGS=0V IDS=-250μA 2
Zero Gate Voltage Drain Current IDSS -1 μA VDS=-16V VGS=0V 2
Zero Gate Voltage Drain Current (TJ=85°C) IDSS -10 μA VDS=-16V VGS=0V TJ=85°C 2
Gate Threshold Voltage VGS(th) -0.5 -0.8 -1 V VDS=VGS IDS=-250μA 2
Gate Leakage Current IGSS -100 100 nA VGS=±12V VDS=0V 2
Drain-Source On-state Resistance RDS(ON) 85 97 mΩ VGS=-10V IDS=-2.7A 2
Drain-Source On-state Resistance RDS(ON) 82 110 mΩ VGS=-4.5V IDS=-2.7A 2
Drain-Source On-state Resistance RDS(ON) 130 150 mΩ VGS=-2.5V IDS=-2.2A 2
Diode Forward Voltage VSD -0.7 -1.3 V VGS=0V ISD=-1.0A 2
Total Gate Charge Qg 5.8 10 nC VDS=-6V VGS=-4.5V IDS=-2.7A 2
Turn-on Delay Time td(ON) 13 25 ns VDD=-6V RL=6Ω IDS=-1A VGEN=-10V RG=6Ω 3
Turn-on Rise Time Tr 36 60 ns VDD=-6V RL=6Ω IDS=-1A VGEN=-10V RG=6Ω 3
Turn-off Delay Time Td(OFF) 42 70 ns VDD=-6V RL=6Ω IDS=-1A VGEN=-10V RG=6Ω 3
Turn-off Fall Time Tf 34 60 ns VDD=-6V RL=6Ω IDS=-1A VGEN=-10V RG=6Ω 3

CAD (KiCad official)

  • Symbol: BR4953D-A
  • Footprint: Package_SO:SOIC-8_3.9x4.9mm_P1.27mm
  • 3D model: SOP-8 (KiCad packages3D, STEP)
  • 3D model files: br4953d-a-etched.step / br4953d-a-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); br4953d-a.step / br4953d-a.glb are the bare package body.

Provenance

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

  • Datasheet: Foshan Blue Rocket Elec datasheet (7 pp, sha256 0aa231a2604eb07a, retrieved 2026-10-19, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-haiku-5-5 (text), consensus claude-sonnet-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