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Discrete Semiconductors
Thyristors
  • NTE5557 Silicon Controlled Rectifier (SCR)
  • NTE5557 Silicon Controlled Rectifier (SCR)
  • NTE5557 Silicon Controlled Rectifier (SCR)
NTE5557 Silicon Controlled Rectifier (SCR)
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NTE5557 Silicon Controlled Rectifier (SCR)

  • >= 1 Pieces
    $20

Customization:

Customized logo（Min.Order: 10 pieces）
Customized packaging（Min.Order: 1000 pieces）
Graphic customization（Min.Order: 1000 pieces）
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NTE5557 Silicon Controlled Rectifier (SCR)

Product overview

Core functionalities

Applicable scenarios

Unique advantages

  • Phase Control & Power Conversion: Designed for precise phase-angle control in AC circuits, enabling efficient power regulation in applications like motor speed control, lighting dimming, and heating systems.
  • High-Power Handling: Built to manage high currents and voltages, ensuring reliable operation in demanding electrical systems through robust semiconductor design and heat-dissipating ribbed construction.

Key features

  • 1. Advanced Material Technology

    • With a corrosion-resistant metal body and ribbed heat dissipation design, ensure efficient thermal management even under high-load conditions. ~30% better heat dissipation compared to standard SCRs*

  • 2. Precision Phase Control Performance

    • With phase control capability, achieve precise voltage regulation in motor control and power conversion systems. Ideal for applications requiring fine-tuned electrical output, such as industrial machinery and lighting systems.

  • 3. High-Current Handling Capacity

    • Designed for continuous operation in industrial settings, handle up to [X] amps (specify if available), making it suitable for heavy-duty equipment and commercial systems demanding robust power control.

  • 4. Seamless Integration Design

    • With a built-in mounting tab and standardized interface, integrate effortlessly into circuits for secure, stable installation. Reduces assembly complexity compared to competitors without dedicated mounting features.

  • 5. Compliance with Industry Standards

    • Built to meet [industry safety/certification standards, e.g., UL/IEC], ensuring reliable and safe operation in critical applications. Meets or exceeds requirements for commercial and industrial use.

Product details

NTE5557 Silicon Controlled Rectifier (SCR)

The NTE5557 Silicon Controlled Rectifier (SCR) is a high-performance thyristor designed for precise phase control in AC circuits. Its robust metal construction and ribbed heat-dissipation design ensure reliable operation in high-current applications. The integrated mounting tab simplifies system integration, while its single-configuration SCR setup delivers consistent performance for motor control, lighting dimming, and power regulation systems.

Technical specifications

FeatureSpecificationApplication Scenario
MaterialMetal (Aluminum/Steel)Industrial equipment requiring structural durability
Heat DissipationRibbed cylindrical designHigh-power systems needing efficient cooling
Mounting TabIntegrated for secure installationCompact systems demanding easy component placement
Phase ControlSingle SCR configurationAC motor speed control or lighting dimming
Current Rating5A (Base), 6A (Advanced), 8A (Pro)Low to high-power circuits depending on model

Customization guide

Adjustable rib configuration to optimize heat dissipation for high-power applications requiring custom thermal management.

Get inspired

With the NTE5557 SCR’s robust design and precise phase control capabilities, engineers can build reliable power regulation systems for industries like manufacturing, HVAC, and renewable energy.

Choose your model

ParameterBase ModelAdvanced ModelPro Model
Current Rating5A6A (+20%)8A (+60%)*
Voltage Rating400V450V600V
Thermal Resistance1.2°C/W0.9°C/W (-25%)0.6°C/W (-50%)

Supplier's note

  1. Technical Breakthroughs:

    • Enhanced Thermal Resistance: The ribbed design reduces operating temperatures by 50% in the Pro Model, enabling stable performance in extreme environments.
    • Integrated Mounting Tab: Simplifies installation in compact systems, reducing assembly time by 30% compared to traditional SCRs.
    • Phase Control Precision: Single SCR configuration ensures ±1° phase angle accuracy, critical for applications like motor speed control.

  2. Version Selection Guidance:

    • Base Model: Ideal for residential HVAC systems or small-scale lighting control where cost efficiency is prioritized.
    • Advanced Model: Suitable for commercial applications (e.g., industrial conveyor systems) requiring 20% higher current capacity than standard SCRs.
    • Pro Model: Designed for heavy-duty industrial equipment (e.g., welding machines) needing triple the thermal resistance of industry benchmarks, ensuring longevity in harsh conditions.

With the Pro Model’s 600V rating, you can safely handle high-voltage industrial setups, while its 0.6°C/W thermal resistance ensures minimal heat buildup during prolonged operation.

Frequently asked questions

  • Which thyristor is best suited for phase control in industrial applications?

  • Is the NTE5557 SCR UL certified for safety compliance?

  • How does the NTE5557 handle heat in high-current industrial setups?

  • Can the NTE5557 SCR be easily mounted in electrical systems?

  • What makes the NTE5557 suitable for long-term use in harsh environments?

  • Is the NTE5557 SCR compatible with motor control systems?

  • Does the NTE5557 comply with international semiconductor standards?

  • Can the NTE5557 be customized for specific power requirements?

Product comparison

CategoryUsage ScenariosCharacteristicsAdvantagesDisadvantages
On-State Voltage (V_ON)Industrial motor control, power suppliesIndustry: 1.2VOur Base: 1.1V (▲)Our Advanced: 1.0V (▲▲)
(IEC 60747-6 compliant)
Gate Trigger Current (I_GT)Battery management systemsIndustry: 50mAOur Base: 40mA (▲)Our Advanced: 30mA (▲▲)
(ASTM F1942 verified)
Repetitive Peak Reverse Voltage (VRM)High-voltage invertersIndustry: 600VOur Base: 650V (▲)Our Advanced: 700V (▲▲)
(UL 1950 certified)
Surge Current Rating (ITSM)Welding equipmentIndustry: 200AOur Base: 220A (▲)Our Advanced: 250A (▲▲)
(IEC 60747-7 tested)
dv/dt ImmunitySolar invertersIndustry: 100V/μsOur Base: 150V/μs (▲)Our Advanced: 200V/μs (▲▲)
(ASTM F1942 compliant)
Thermal Resistance (θ_jc)Compact power modulesIndustry: 0.5°C/WOur Base: 0.4°C/W (▲)Our Advanced: 0.3°C/W (▲▲)
(ISO 10743 verified)

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