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BSR57 AI Analysis:
Datasheet, Specs, Alternatives & ECAD

AI summary

BSR57 product

BSR57

Transistors - JFETs

JFETN-ChannelSOT-23Low-Noise

The BSR57 is a low-noise N-Channel JFET designed for switching and chopper applications in a compact SOT-23 package.

Best for

  • Low-power chopper circuits
  • Switching applications
  • Low-noise amplifiers

Avoid if

  • High-power applications exceeding 250mW
  • Circuits requiring precise, narrow IDSS ranges without selection

Check before use

  • Gate-source voltage polarity
  • Thermal management for continuous operation

Key specifications

Drain-Gate Voltage
40 V
IDSS Range
20 - 100 mA
Power Dissipation
250 mW

Compliance & Environment

RoHS
ROHS3 Compliant
REACH
REACH Unaffected
MSL
1 (Unlimited)
ECCN
EAR99
HTSUS
8541.21.0095

Application

SwitchingAmplification

Datasheet

Fairchild-Semiconductor-company-11.pdf

800 KB

Datasheet AI

CAD Models

Download ECAD models for BSR57: KiCad symbol & footprint, Altium footprint, PCB footprint, and 3D model.

EDA Symbol
Schematic symbol for your EDA tool
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PCB Footprint
Land pattern for PCB layout
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3D Model
STEP file for mechanical design
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KiCad Library
Verified KiCad 8 symbol, footprint, and 3D model
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Where to Buy

Real-time and catalog pricing from verified distributors

Live prices updated on demand · Catalog (~) prices may differ

Alternative components

Alternatives are being enriched. Analyze this part in PartGenie for the latest matches.

Design and risk insights

Questions & answers

The BSR57 is an N-Channel JFET from onsemi, specifically engineered for low-frequency, low-noise amplification and switching tasks.