Editorial Technical Reference

Active Device

This page explains how Active Device is classified within Computer, Electronic and Optical Product Manufacturing. Technical values and manufacturer relationships are research references; confirm the current specification and supplier evidence for each order.

Technical Definition & Core Assembly

Electronic component that requires external power to operate and can amplify, switch, or process signals

Representative product image. Confirm appearance and specifications with the manufacturer.

Product Specifications

Technical details and manufacturing context for Active Device

Definition
An active device within the Amplification Stage is an electronic component that requires an external power source to function and is capable of controlling electron flow to amplify, switch, or process electrical signals. Unlike passive components, active devices can increase signal power and perform complex signal processing functions essential for amplification circuits. This directory entry covers active devices used in the manufacturing of computer, electronic, and optical products, specifically as components in amplification stages. The devices are typically based on semiconductor materials such as silicon, with doped regions and metal contacts for electrical connection. They operate by using external power to control the flow of electrons through semiconductor junctions, enabling signal amplification through mechanisms like current or voltage gain. Key parameters to consider when selecting an active device include supply voltage (typically 3.3–5.0 V DC), power dissipation (0.5–2.0 W), operating temperature range (-40 to 85 °C), storage temperature range (-55 to 150 °C), input/output impedance (50–75 Ω), gain bandwidth product (10–100 MHz), rise time (1–10 ns), output current (10–50 mA), ESD tolerance (2–8 kV), package type (SOT-23 to QFN-48), and weight (0.01–0.5 g). These values are reference ranges and must be verified for the specific model and application. Standards such as IEC 60038, IEC 60068-2-1/2, IEC 60153-1, IEC 61000-4-2, and JEDEC are listed as procurement references; they do not imply certification or compliance of any particular product. Always confirm model-specific specifications with the legal manufacturer or supplier before use.
Working Principle
Active devices operate by using external power to control the flow of electrons through semiconductor materials. They typically contain semiconductor junctions (like PN junctions in transistors) that can be biased to regulate current flow. When properly configured in amplification circuits, small input signals control larger output currents, resulting in signal amplification through mechanisms like current gain or voltage gain.
Common Materials
Semiconductor Silicon, Doped Semiconductor Materials, Metal Contacts
Technical Parameters
ParameterTypical rangeNotes & selection driver
Supply Voltage3.3–5.0 V DCOperating range for standard logic and analog ICsIEC 60038
Power Dissipation0.5–2.0 WMaximum allowable continuous power dissipation
Operating Temperature-40–85 °CJunction temperature may be higher; derating required above 70°CIEC 60068-2-1/2
Storage Temperature-55–150 °CNon-operating survival rangeIEC 60068-2-1/2
Input/Output Impedance50–75 ΩMatched to standard transmission linesIEC 60153-1
Gain Bandwidth Product10–100 MHzFor amplifiers; higher for high-speed devices
Rise Time1–10 nsFor digital switching; lower is faster
Output Current10–50 mAMaximum continuous output current
ESD Tolerance2–8 kVHuman body model; higher is better for reliabilityIEC 61000-4-2
Package TypeSOT-23–QFN-48Range of standard package sizesJEDEC
Weight0.01–0.5 gDepends on package size

Ranges are indicative industry figures for RFQ preparation, not a supplier commitment. Confirm every value and standard with the legal manufacturer before ordering.

Components / BOM
  • Semiconductor Substrate Part
    Base material providing the electronic properties for device operation
    Material: Silicon or Compound Semiconductor
  • Junction Region Part
    Area where different semiconductor materials meet to control electron flow
    Material: Doped Semiconductor Layers
  • Terminal Contacts Part
    Electrical connections for input, output, and power supply
    Material: Gold or Aluminum

Applied To / Applications

This component is essential for the following industrial systems and equipment:

Industrial Ecosystem & Supply Chain Structure

Complementary Systems
Downstream Applications
Specialized Tooling

Application Fit & Sizing Matrix

Operational Limits
pressure: Atmospheric to 1.5 bar (typical for sealed packages)
other spec: Signal frequency range: DC to 2 GHz, Power supply: 3.3V to 48V DC, Humidity: 0-95% non-condensing
temperature: -40°C to +85°C (industrial grade), -55°C to +125°C (military grade)
Media Compatibility
✓ Clean dry air environments ✓ Low-corrosion industrial gases ✓ Non-conductive liquid immersion (with proper encapsulation)
Unsuitable: High-concentration corrosive chemical atmospheres (e.g., chlorine gas, strong acids)
Sizing Data Required
  • Required signal bandwidth/frequency
  • Power supply voltage and current capacity
  • Input/output impedance matching requirements

Reliability & Engineering Risk Analysis

Failure Mode & Root Cause
Bearing fatigue failure
Cause: Cyclic loading beyond design limits leading to subsurface crack initiation and propagation
Electrical insulation breakdown
Cause: Thermal degradation from overheating or contamination-induced tracking
Maintenance Indicators
  • Abnormal high-frequency vibration or audible whining from rotating components
  • Unusual temperature rise detected via thermal imaging or touch (>10°C above baseline)
Engineering Tips
  • Implement condition-based monitoring with vibration analysis and infrared thermography to detect early degradation
  • Establish precision alignment procedures and controlled startup sequences to minimize transient mechanical stresses

Indicative industry ranges for design and RFQ preparation. Confirm the exact figures and applicable standard with the manufacturer before specifying.

Compliance & Manufacturing Standards

Applicable Standards
IEC 60601-1:2005 - Medical electrical equipment CE Marking - Medical Devices Directive 93/42/EEC

Quoted from the published standard.

Manufacturing Precision
  • Dimensional accuracy: +/-0.05mm for critical features
  • Surface finish: Ra 0.8μm maximum for contact surfaces
Quality Inspection
  • Electrical safety testing (leakage current, insulation resistance)
  • Performance verification (accuracy, response time, stability)

Manufacturers of Active Device

1 company lists this product among what they make. Company figures are quoted from each company's own website; every card states where the relationship came from.

Advanced Microwave Technologies Co., Ltd
Shaanxi, CN
Listed on the company's own website · profile compiled by CNFX from public sources

Manufacturer listings support early research and capability understanding. They are not certification, ranking, or transaction guarantees.

Technical documentation
Request current drawings, revision history, and a signed specification sheet.
Manufacturing capability
Verify equipment lists, process limits, capacity, and representative production evidence.
Inspection readiness
Confirm test methods, calibrated equipment, sampling plans, and traceable reports.
Supplier transparency
Check the legal entity, factory address, ownership, certifications, and direct contacts.

CNFX does not score or rank suppliers. Buyers must verify all claims and documents with the legal manufacturer before ordering.

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Frequently Asked Questions

What is an active device?

An active device is an electronic component that requires an external power source to operate and can amplify, switch, or process electrical signals. It uses semiconductor junctions to control electron flow, enabling signal amplification.

What are typical supply voltage ranges?

Typical supply voltage ranges are 3.3 to 5.0 V DC, as per IEC 60038. However, always verify the exact requirement for your specific model and application.

What standards apply to active devices?

Relevant standards include IEC 60038 for supply voltage, IEC 60068-2-1/2 for temperature, IEC 60153-1 for impedance, IEC 61000-4-2 for ESD, and JEDEC for packaging. These are reference standards; compliance must be confirmed with the manufacturer.

How do I select the right active device?

Consider parameters such as supply voltage, power dissipation, operating temperature, impedance, gain bandwidth product, rise time, output current, ESD tolerance, package type, and weight. Verify these values with the manufacturer for your specific application.

Data Basis

Editorial classification, named public sources where available, and source-reviewed manufacturer records.

Preliminary Technical Classification
This page supports structured research, RFQ preparation, and supplier evaluation. It does not replace buyer-led supplier qualification, standards review, or technical approval.
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