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Component Lifecycle Data Sheet - Revision 2 - Release Date 2014-12-02 - English Technical Document

Technical documentation detailing the lifecycle phase, revision history, and release information for an electronic component. This document provides essential data for version control and component management.
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PDF Document Cover - Component Lifecycle Data Sheet - Revision 2 - Release Date 2014-12-02 - English Technical Document

1. Product Overview

This technical document provides critical lifecycle management information for an electronic component. The core function of this document is to establish a definitive record of the component's revision status and release timeline, serving as a single source of truth for engineering, procurement, and quality assurance teams. Its primary advantage lies in ensuring traceability and consistency across manufacturing and supply chains, preventing the use of outdated or incorrect component versions in production. The target market includes all sectors utilizing electronic assemblies where version control and lifecycle management are paramount, such as consumer electronics, industrial automation, telecommunications, and automotive electronics.

2. Technical Parameters Deep Objective Interpretation

While the provided PDF excerpt focuses on administrative data, a comprehensive technical document would typically include detailed specifications. Based on standard industry practice, the following sections would be present in a full datasheet and are interpreted here for context.

2.1 Lifecycle and Revision Parameters

The key parameters extracted are the Lifecycle Phase and Revision Number. The lifecycle phase "Revision" indicates the component is in an active state where updates and improvements are being made. The revision number "2" specifies this is the second official iteration of the component's design or documentation. This is a critical parameter for change management.

2.2 Temporal Parameters

The Release Date parameter is "2014-12-02 15:00:46.0". This timestamp provides an absolute reference point for when this specific revision (Revision 2) was officially issued and became the active version for design and manufacturing purposes.

2.3 Validity Parameter

The Expired Period is stated as "Forever". This is a significant parameter indicating that this revision of the documentation does not have a planned obsolescence date from an administrative standpoint. It will remain the valid reference until superseded by a subsequent revision. This does not necessarily reflect the component's production lifespan but the validity of this document version.

3. Grading System Explanation

Although not explicitly detailed in the snippet, component datasheets often include grading or binning systems for key performance characteristics. For an electronic component, common grading parameters could include:

The absence of such data in this excerpt suggests this document is a cover sheet or summary focusing on revision control rather than the detailed performance bins.

4. Performance Curve Analysis

A full datasheet would contain graphical representations of component behavior. Key performance curves typically include:

These curves allow engineers to predict component behavior under real-world operating conditions beyond the simple maximum/minimum ratings listed in tables.

5. Mechanical and Packaging Information

Precise mechanical data is fundamental for PCB (Printed Circuit Board) design and assembly. This section would normally contain:

6. Soldering and Assembly Guidelines

To ensure long-term reliability, manufacturers provide specific instructions for attaching the component to a circuit board.

7. Packaging and Ordering Information

This section details how the component is supplied and how to specify the correct version when ordering.

8. Application Suggestions

Guidance on where and how to best utilize the component.

9. Technical Comparison

While this specific document does not provide comparative data, a comprehensive analysis might highlight this component's position relative to alternatives. Potential points of differentiation could include:

10. Frequently Asked Questions

Answers to common queries based on the technical parameters.

11. Practical Use Case

Consider a power supply design project initiated in early 2014. The design team selects a specific voltage regulator component, basing their schematic and layout on its Revision 1 datasheet. In December 2014, the manufacturer releases Revision 2. The project manager must:

  1. Obtain the Revision 2 datasheet and any associated ECNs.
  2. Review the changes. If the changes are minor (e.g., updated test data) and the manufacturer confirms drop-in compatibility, the design may proceed with the new revision.
  3. If the changes are significant (e.g., a modified pinout or different thermal pad), the PCB layout may need to be updated before manufacturing.
  4. Update the company's internal Bill of Materials (BOM) to specify "Revision 2 or later" to ensure future builds use the correct component version.

This process, governed by the data in this lifecycle document, prevents assembly errors and field failures.

12. Principle Introduction

The principle behind rigorous lifecycle and revision documentation is rooted in configuration management and quality assurance in electronics manufacturing. Every physical component and its accompanying documentation are treated as a "configuration item." Changes to any attribute—electrical, mechanical, or material—constitute a revision. Documenting these revisions with precise identifiers (number, date) creates an auditable trail. This allows complex supply chains, involving designers, component manufacturers, contract assemblers, and end-users, to synchronize on the exact version of a part being used at any point in time. It is a foundational practice for ensuring product consistency, facilitating troubleshooting, and managing field updates or recalls.

13. Development Trends

The field of component documentation and lifecycle management is evolving with industry trends:

These trends point towards a future where the static PDF datasheet is augmented or replaced by dynamic, linked data sources, making the accurate tracking of revisions like "Revision 2" even more seamless and integral to the product development lifecycle.

LED Specification Terminology

Complete explanation of LED technical terms

Photoelectric Performance

Term Unit/Representation Simple Explanation Why Important
Luminous Efficacy lm/W (lumens per watt) Light output per watt of electricity, higher means more energy efficient. Directly determines energy efficiency grade and electricity cost.
Luminous Flux lm (lumens) Total light emitted by source, commonly called "brightness". Determines if the light is bright enough.
Viewing Angle ° (degrees), e.g., 120° Angle where light intensity drops to half, determines beam width. Affects illumination range and uniformity.
CCT (Color Temperature) K (Kelvin), e.g., 2700K/6500K Warmth/coolness of light, lower values yellowish/warm, higher whitish/cool. Determines lighting atmosphere and suitable scenarios.
CRI / Ra Unitless, 0–100 Ability to render object colors accurately, Ra≥80 is good. Affects color authenticity, used in high-demand places like malls, museums.
SDCM MacAdam ellipse steps, e.g., "5-step" Color consistency metric, smaller steps mean more consistent color. Ensures uniform color across same batch of LEDs.
Dominant Wavelength nm (nanometers), e.g., 620nm (red) Wavelength corresponding to color of colored LEDs. Determines hue of red, yellow, green monochrome LEDs.
Spectral Distribution Wavelength vs intensity curve Shows intensity distribution across wavelengths. Affects color rendering and quality.

Electrical Parameters

Term Symbol Simple Explanation Design Considerations
Forward Voltage Vf Minimum voltage to turn on LED, like "starting threshold". Driver voltage must be ≥Vf, voltages add up for series LEDs.
Forward Current If Current value for normal LED operation. Usually constant current drive, current determines brightness & lifespan.
Max Pulse Current Ifp Peak current tolerable for short periods, used for dimming or flashing. Pulse width & duty cycle must be strictly controlled to avoid damage.
Reverse Voltage Vr Max reverse voltage LED can withstand, beyond may cause breakdown. Circuit must prevent reverse connection or voltage spikes.
Thermal Resistance Rth (°C/W) Resistance to heat transfer from chip to solder, lower is better. High thermal resistance requires stronger heat dissipation.
ESD Immunity V (HBM), e.g., 1000V Ability to withstand electrostatic discharge, higher means less vulnerable. Anti-static measures needed in production, especially for sensitive LEDs.

Thermal Management & Reliability

Term Key Metric Simple Explanation Impact
Junction Temperature Tj (°C) Actual operating temperature inside LED chip. Every 10°C reduction may double lifespan; too high causes light decay, color shift.
Lumen Depreciation L70 / L80 (hours) Time for brightness to drop to 70% or 80% of initial. Directly defines LED "service life".
Lumen Maintenance % (e.g., 70%) Percentage of brightness retained after time. Indicates brightness retention over long-term use.
Color Shift Δu′v′ or MacAdam ellipse Degree of color change during use. Affects color consistency in lighting scenes.
Thermal Aging Material degradation Deterioration due to long-term high temperature. May cause brightness drop, color change, or open-circuit failure.

Packaging & Materials

Term Common Types Simple Explanation Features & Applications
Package Type EMC, PPA, Ceramic Housing material protecting chip, providing optical/thermal interface. EMC: good heat resistance, low cost; Ceramic: better heat dissipation, longer life.
Chip Structure Front, Flip Chip Chip electrode arrangement. Flip chip: better heat dissipation, higher efficacy, for high-power.
Phosphor Coating YAG, Silicate, Nitride Covers blue chip, converts some to yellow/red, mixes to white. Different phosphors affect efficacy, CCT, and CRI.
Lens/Optics Flat, Microlens, TIR Optical structure on surface controlling light distribution. Determines viewing angle and light distribution curve.

Quality Control & Binning

Term Binning Content Simple Explanation Purpose
Luminous Flux Bin Code e.g., 2G, 2H Grouped by brightness, each group has min/max lumen values. Ensures uniform brightness in same batch.
Voltage Bin Code e.g., 6W, 6X Grouped by forward voltage range. Facilitates driver matching, improves system efficiency.
Color Bin 5-step MacAdam ellipse Grouped by color coordinates, ensuring tight range. Guarantees color consistency, avoids uneven color within fixture.
CCT Bin 2700K, 3000K etc. Grouped by CCT, each has corresponding coordinate range. Meets different scene CCT requirements.

Testing & Certification

Term Standard/Test Simple Explanation Significance
LM-80 Lumen maintenance test Long-term lighting at constant temperature, recording brightness decay. Used to estimate LED life (with TM-21).
TM-21 Life estimation standard Estimates life under actual conditions based on LM-80 data. Provides scientific life prediction.
IESNA Illuminating Engineering Society Covers optical, electrical, thermal test methods. Industry-recognized test basis.
RoHS / REACH Environmental certification Ensures no harmful substances (lead, mercury). Market access requirement internationally.
ENERGY STAR / DLC Energy efficiency certification Energy efficiency and performance certification for lighting. Used in government procurement, subsidy programs, enhances competitiveness.