Skip to main content

BS170

N-Channel Enhancement Mode Field Effect Transistor

The BS170 is a n-channel enhancement mode field effect transistor from Fairchild Semiconductor. View the full BS170 datasheet below including electrical characteristics, absolute maximum ratings.

Manufacturer

Fairchild Semiconductor

Category

N-Channel Enhancement Mode Field Effect Transistor

Overview

Part: BS170 / MMBF170 — ON Semiconductor (formerly Fairchild Semiconductor)

Type: N-Channel Enhancement Mode Field Effect Transistor

Description: N-Channel enhancement mode field effect transistor produced using DMOS technology, designed to minimize on-state resistance and provide rugged, reliable, and fast switching performance for applications requiring up to 500mA DC and 60V drain-source voltage.

Operating Conditions:

  • Gate-Source Voltage: ±20 V
  • Operating temperature: -55 to 150 °C
  • Max continuous drain current: 500 mA

Absolute Maximum Ratings:

  • Max Drain-Source Voltage: 60 V
  • Max continuous Drain Current: 500 mA
  • Max Operating and Storage Temperature: 150 °C

Key Specs:

  • Drain-Source Breakdown Voltage (BV DSS): 60 V (V GS = 0V, I D = 100 μ A)
  • Zero Gate Voltage Drain Current (I DSS): 0.5 μ A max (V DS = 25V, V GS = 0V)
  • Gate Threshold Voltage (V GS(th)): 0.8 V min, 3 V max (V DS = V GS , I D = 1mA)
  • Static Drain-Source On-Resistance (R DS(ON)): 1.2 Ω typ, 5 Ω max (V GS = 10V, I D = 200mA)
  • Input Capacitance (C iss): 24 pF typ, 40 pF max (V DS = 10V, V GS = 0V, f = 1.0MHz)
  • Turn-On Time (t on): 10 ns max (V DD = 25V, I D = 200mA/500mA, V GS = 10V)
  • Turn-Off Time (t off): 10 ns max (V DD = 25V, I D = 200mA/500mA, V GS = 10V)

Features:

  • High density cell design for low R DS(ON)
  • Voltage controlled small signal switch
  • Rugged and reliable
  • High saturation current capability

Applications:

  • Small servo motor control
  • Power MOSFET gate drivers
  • Switching applications

Package:

  • TO-92
  • SOT-23

Features

These N-Channel enhancement mode field effect transistors are produced using Fairchild's proprietary, high cell density, DMOS technology. These products have been designed to minimize on-state resistance while provide rugged, reliable, and fast switching performance. They can be used in most applications requiring up to 500mA DC. These products are particularly suited for low voltage, low current applications such as small servo motor control, power MOSFET gate drivers, and other switching applications.

  • ■ High density cell design for low R DS(ON) .
  • ■ Voltage controlled small signal switch.
  • ■ Rugged and reliable.
  • ■ High saturation current capability.

Electrical Characteristics

SymbolParameterConditionsTypeMin.Typ.Max.Units
OFF CHARACTERISTICSOFF CHARACTERISTICSOFF CHARACTERISTICSOFF CHARACTERISTICSOFF CHARACTERISTICSOFF CHARACTERISTICSOFF CHARACTERISTICSOFF CHARACTERISTICS
BV DSSDrain-Source Breakdown VoltageV GS = 0V, I D = 100 μ AAll60V
I DSSZero Gate Voltage Drain CurrentV DS = 25V, V GS = 0VAll0.5μ A
I GSSFGate - Body Leakage, ForwardV GS = 15V, V DS = 0VAll10nA
ON CHARACTERISTICS (Notes 1)ON CHARACTERISTICS (Notes 1)ON CHARACTERISTICS (Notes 1)ON CHARACTERISTICS (Notes 1)ON CHARACTERISTICS (Notes 1)ON CHARACTERISTICS (Notes 1)ON CHARACTERISTICS (Notes 1)ON CHARACTERISTICS (Notes 1)
V GS(th)Gate Threshold VoltageV DS = V GS , I D = 1mAAll0.82.13V
R DS(ON)Static Drain-Source On-ResistanceV GS = 10V, I D = 200mAAll1.25Ω
g FSForward TransconductanceV DS = 10V, I D = 200mABS170320mS
g FSForward TransconductanceV DS ≥ 2 V DS(on) , I D = 200mAMMBF170320mS
Dynamic CharacteristicsDynamic CharacteristicsDynamic CharacteristicsDynamic CharacteristicsDynamic CharacteristicsDynamic CharacteristicsDynamic CharacteristicsDynamic Characteristics
C issInput CapacitanceV DS = 10V, V GS = 0V, f = 1.0MHzAll2440pF
C ossOutput CapacitanceV DS = 10V, V GS = 0V, f = 1.0MHzAll1730pF
C rssReverse Transfer CapacitanceV DS = 10V, V GS = 0V, f = 1.0MHzAll710pF
Switching Characteristics (Notes 1)Switching Characteristics (Notes 1)Switching Characteristics (Notes 1)Switching Characteristics (Notes 1)Switching Characteristics (Notes 1)Switching Characteristics (Notes 1)Switching Characteristics (Notes 1)Switching Characteristics (Notes 1)
t onTurn-On TimeV DD = 25V, I D = 200mA, V GS = 10V, R GEN = 25 ΩBS17010ns
t onTurn-On TimeV DD = 25V, I D = 500mA, V GS = 10V, R GEN = 50 ΩMMBF17010ns
t offTurn-Off TimeV DD = 25V, I D = 200mA, V GS = 10V, R GEN = 25 ΩBS17010ns
t offTurn-Off TimeV DD = 25V, I D = 500mA, V GS = 10V, R GEN = 50 ΩMMBF17010ns

Absolute Maximum Ratings

SymbolParameterBS170MMBF170Units
V DSSDrain-Source Voltage6060V
V DGRDrain-Gate Voltage (R GS ≤ 1M Ω )6060V
V GSSGate-Source Voltage± 20± 20V
I DDrain Current - Continuous500500mA
I D- Pulsed1200800mA
T J , T STGOperating and Storage Temperature Range- 55 to 150- 55 to 150° C
T LMaximum Lead Temperature for Soldering Purposes, 1/16" from Case for 10 Seconds300300° C

Thermal Information

SymbolParameterBS170MMBF170Units
P DMaximum Power Dissipation Derate above 25 ° C830 6.6300 2.4mW mW/ ° C
R θ JAThermal Resistance, Junction to Ambient150417° C/W

Data on this page is extracted from publicly available manufacturer datasheets using automated tools including AI. It may contain errors or omissions. Always verify specifications against the official manufacturer datasheet before making design or purchasing decisions. See our Terms of Service. Rights holders can submit a takedown request.

Get structured datasheet data via API

Get started free