BS170_L34Z

Single FETs, MOSFETs Overview

The BS170_L34Z is an N-channel enhancement mode silicon MOSFET manufactured by onsemi. It features a TO-92 package with three pins. The device supports a continuous drain current of 500 mA and a drain-source voltage rating of 60 V. Key electrical characteristics include a gate-source threshold voltage of 3 V at 1 mA drain current, a maximum drain-source on-resistance of 5 Ω at 200 mA and 10 V, and a maximum power dissipation of 830 mW at 25°C ambient temperature. The component operates in enhancement mode with a maximum junction temperature of 150°C.

Single FETs, MOSFETs Feature Summary

• N-channel enhancement mode field effect transistor construction
• Logic level gate drive capability for low voltage switching applications
• Small signal amplification and switching functionality

Single FETs, MOSFETs Applications

• General purpose small signal switching circuits
• Low voltage amplifier stages
• Battery protection and management systems

Single FETs, MOSFETs Procurement Notes

Verify the specific suffix L34Z against official onsemi documentation to confirm tape and reel packaging or specific marking codes. Ensure the ordering part number matches the exact datasheet revision required for your design. Cross-reference the manufacturer's latest specifications for any updates to thermal or electrical ratings before finalizing procurement.

Single FETs, MOSFETs Selection Notes

Select this component for designs requiring a standard N-channel MOSFET in a through-hole TO-92 package. Consider the 60V breakdown voltage and 500mA current limits when sizing for load requirements. Evaluate the 5 ohm on-resistance for potential power loss in high-current continuous duty cycles compared to lower resistance alternatives.

Single FETs, MOSFETs Part Context

This part belongs to the BS170 family of small-signal MOSFETs produced by onsemi (formerly Fairchild Semiconductor). The L34Z suffix typically denotes specific manufacturing lot or packaging variations within the company's product line. It serves as a direct replacement for legacy BS170 components from other manufacturers such as Texas Instruments or National Semiconductor.

Single FETs, MOSFETs Replacement Considerations

Equivalent parts include the BS170/D27Z from Texas Instruments and the BS170-D26Z from onsemi. Verify pinout compatibility and ensure that the substitute component meets the same 60V and 500mA ratings.