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BT258-500R,127 AI Analysis:
Datasheet, Specs, Alternatives & ECAD

AI summary

BT258-500R,127 product

BT258-500R,127

Thyristors - SCRs

ThyristorSCRSensitive GateTO-220AB

The BT258-500R is a sensitive gate thyristor (SCR) optimized for low-power control circuits and microcontroller interfacing.

Best for

  • Microcontroller-based power control
  • General-purpose switching
  • Phase control applications

Avoid if

  • High-current industrial motor drives exceeding 8A RMS
  • Environments requiring extreme noise immunity without proper gate filtering

Check before use

  • Gate-to-cathode resistor requirements for high-temperature operation
  • Thermal resistance junction-to-mounting base

Key specifications

VDRM
500 V
IT(RMS)
8 A
IGT
200 µA

Compliance & Environment

RoHS
RoHS Compliant
REACH
-
MSL
-
ECCN
EAR99
HTSUS
8541300080.0

Application

Power ControlGeneral Switching

Datasheet

DSASFU100010805.pdf

800 KB

Datasheet AI

CAD Models

Download ECAD models for BT258-500R,127: KiCad symbol & footprint, Altium footprint, PCB footprint, and 3D model.

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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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Where to Buy

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Alternative components

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

Design and risk insights

Questions & answers

It is a passivated, sensitive gate thyristor (SCR) in a TO-220AB package, designed for general-purpose switching and phase control.