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BSS84AKS

Name: BSS84AKS
Rating: 4.7 (12 reviews)

MOSFET P-CH 60V 0.4A SC70-6

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規格

Part Status	Active
FET Type	P-Channel
Technology	MOSFET (Metal Oxide)
Current - Continuous Drain (Id) @ 25°C	400mA (Ta)
Drive Voltage (Max Rds On, Min Rds On)	4.5V, 10V
Vgs(th) (Max) @ Id	1V @ 250µA (Min)
Vgs (Max)	±20V
Power Dissipation (Max)	300mW (Ta)
Operating Temperature	-55°C ~ 175°C (TJ)
Mounting Type	Surface Mount
Supplier Device Package	SC-70-6
Package	PowerPAK® SC-70-6
Packaging	Bulk

概述

Description

BSS84AKS is a small-signal P-channel MOSFET in a SOT-23 package, used for high-side switching and level-shifting in compact boards.
Key points
- Type: P-channel enhancement-mode MOSFET
- Voltage/current: Vds ≈ -50 V; Id around -100 to -130 mA
- Gate threshold: typically -0.6 to -1.5 V
- Rds(on): typically a few ohms (approx. 3–6 Ω depending on Vgs)
- Gate drive: works with logic-level signals (relative to source)
- Package: SOT-23; “AKS” suffix denotes a specific packaging/variant (e.g., RoHS lead-free, reel) from the vendor
Common uses
- High-side switching for small loads
- Level-shifting and protection in microcontroller circuits
- Inverter/relay driver circuits
Note
- Exact electrical parameters (Rds(on), Id, Vgs) vary by manufacturer. Always consult the vendor’s datasheet for the BSS84AKS variant you’re using.

Features

Concise features of BSS84AKS (P-channel MOSFET in SOT-23):
- P-channel enhancement-mode MOSFET
- VDS: about −50 V (negative for P-channel)
- ID: ~−0.13 A (≈130 mA) continuous drain current
- RDS(on): typically a few ohms (max around 7–8 Ω at VGS ≈ −4 V)
- Gate threshold: typically −0.6 to −1.5 V
- Fast switching with moderate input capacitance
- Package: 3-pin SOT-23, surface-mount
- RoHS compliant
- Suitable for high-side switching, load switching, level shifting
- Operating temp range commonly −55°C to +125°C (check exact datasheet)

Package

The BSS84AKS is in a SOT-23 (3‑pin) surface-mount package.

Pinout

- Pin count: 3 (SOT-23)
- Function: P-channel enhancement-mode MOSFET used as a high-side switch/level-shift device
- Typical pinout (SOT-23, front view): Pin 1 = Gate, Pin 2 = Source, Pin 3 = Drain
- Usage note: Source to supply, Drain to load, Gate controls conduction (negative Vgs turns it on).

Manufacturer

Manufacturer: Nexperia.
About the company: Nexperia is a global semiconductor company based in the Netherlands that specializes in discrete components (MOSFETs, diodes, transistors), ESD protection, and other standard semiconductor devices.

Application

Application areas of BSS84AKS (P‑channel MOSFET, SOT‑23):
- High-side switching of small loads in battery-powered/low-voltage circuits (up to ~50 V)
- Simple reverse-polarity protection and rail gating on supply lines
- Level-shifting and gate buffering to drive higher-side rails from a logic MCU
- Low‑current switching in LED drivers, indicators, sensors, and portable electronics
- Small-signal switching and buffering in compact PCB designs

Equivalent

BSS84AKS is a P-channel MOSFET (VDS ≈ −50 V, ID ≈ −130 mA) in a SOT‑23 package. Equivalents are other P‑channel MOSFETs with similar ratings in SOT‑23 (≥50 V, ~0.1–0.2 A). Exact cross‑refs depend on region/vendor. For precise substitutes, search Digi‑Key/Mouser cross‑references using VDS and ID, or share your region/preferred suppliers and I’ll list concrete replacements.