GB/T 249-2017 in English
SUPERSEDEDThe rule of type designation for discrete semiconductor devices
- Issued on:2017-05-12
- Implemented on:2017-12-01
- File Format:PDF
- Delivery:Via email within 1~3 business days
$68.00
《GB/T 249-2017半导体分立器件型号命名方法》由TC78（全国半导体器件标准化技术委员会）归口，主管部门为工业和信息化部（电子）。
Introduction
In-depth interpretation of GB/T 249—2017 Semiconductor discrete device model naming method
1. Analysis of standard formulation background and technological evolution
Since its first release in 1964, the GB/T 249 series of standards has undergone many revisions, reflecting the rapid development of semiconductor technology. This revision (GB/T 249—2017) mainly focuses on the following aspects:
- Optimization of the naming rules for mixer tubes and detector tubes
- Expansion of diode material classification
- Additional naming specifications for noise tubes and limiter tubes
- Standardization of transistor arrays
- Introduction of Schottky diodes and trigger diodes
2. Comparative analysis of standard frameworks
| Standard version | Main technical changes | Scope of application | Revision background |
|---|---|---|---|
| GB/T 249—1989 | Lays the foundation for the naming of semiconductor devices | Applicable to the unified naming of discrete device models | Adapt to the development needs of semiconductor technology at that time |
| GB/T 249—2017 | Added a variety of device types and naming rules | Covered a wider range of discrete semiconductor devices | Responded to the rapid development of new devices and technologies |
3. Symbols and meanings of model components (Table 1)
Case analysis: Taking silicon NPN type high-frequency low-power transistor as an example, its model consists of five parts: the first part indicates the number of electrodes is 2 or 3, the second part indicates the material and polarity (such as A represents germanium material, B/C/D/E represent different material properties respectively), the third part indicates the device category (such as H/V/W/C correspond to mixer tube, detector tube, etc. respectively), the fourth part is the registration sequence number, and the fifth part is the specification number.
4. Implementation Suggestions
- Enterprise level: Strictly implement GB/T 249-2017 standard in product design and manufacturing process to ensure the standardization and consistency of model naming.
- Industry level: Organize technical training to improve practitioners' understanding and application capabilities of standards.
- Policy level: Strengthen the publicity and supervision of standards to promote the technological upgrading and standardized development of the semiconductor industry.
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