请登录后使用此功能。 您可以使用此功能将商品添加到您的收藏列表。
关闭
您已经添加该商品到您的收藏列表。 查看我的收藏
关闭
从您收藏列表中删除此商品。
关闭
请登录后使用此功能。 您可以使用此功能将公司添加到您的收藏夹列表。
关闭
这家公司已成功添加。 查看我的收藏
关闭
这家公司已从你的收藏夹列表中删除。
关闭
请登录后使用此功能。 您可以使用此功能将公司添加到您的询问车。
关闭
这家公司已被添加到您的询问车。
关闭
这家公司已从询价车中删除。
关闭
该商品已被添加到您的询问车。
关闭
该商品已经从您的询价车中删除。
关闭
商品/公司已达到添加至询价车的数量。
关闭
Utsource Holding Company Limited
Utsource Holding Company Limited 58474938-000-06-24-A
Onesync AI SSM

What is the difference between transistor output and thyristor output in PLC output? - Utsource Holding Company Limited

What is the difference between transistor output and thyristor output in PLC output?

10-Jul-2025

Introduction to PLC output types
PLC is an electronic device widely used in industrial automation, which can control various mechanical equipment and process flows. PLC output modules are used to control external loads such as motors, valves, indicator lights, etc. PLC output modules are generally of two types: transistor output (T output) and thyristor output (S output).

Transistor output (T output)
Transistor output modules use bipolar transistors (BJT) or metal oxide semiconductor field effect transistors (MOSFET) as switching elements.

Characteristics of transistor output:
1. Load voltage: Transistor output is suitable for low voltage loads, usually direct current (DC).
2. Load current: Transistor output is able to control smaller load currents.
3. Switching speed: Transistor output has a faster switching speed.
4. Power consumption: Transistor output consumes less power when turned on because it is equivalent to a switch.
5. Isolation: Transistor output generally has better isolation characteristics.
6. Control signal: Transistor output modules usually require a positive logic control signal.

Thyristor output (S output)
Thyristor output modules use thyristors (SCR) as switching elements.

Characteristics of thyristor output:
1. Load voltage: Thyristor output is suitable for high voltage loads, which can be alternating current (AC) or direct current (DC).
2. Load current: Thyristor output is able to control large load currents.
3. Switching speed: The switching speed of thyristor output is relatively slow.
4. Power consumption: Thyristor output has a certain power consumption when turned on because it has a conduction voltage drop.
5. Isolation: The isolation characteristics of thyristor output are not as good as transistor output.
6. Control signal: Thyristor output modules usually require a negative logic control signal.

Differences between transistor output and thyristor output
1. Load type: Transistor output is suitable for DC low voltage loads, and thyristor output is suitable for AC or DC high voltage loads.
2. Load capacity: Transistor output controls a smaller current, while thyristor output controls a larger current.
3. Switching speed: Transistor output has a faster switching speed, while thyristor output has a slower switching speed.
4. Power consumption: Transistor output has low power consumption when turned on, while thyristor output has a conduction voltage drop and power consumption.
5. Isolation characteristics: Transistor output generally has better isolation characteristics.
6. Control signal logic: Transistor output requires a positive logic control signal, while thyristor output requires a negative logic control signal.

Conclusion
The transistor output and thyristor output of PLC have their own characteristics and are suitable for different loads and application scenarios. Transistor output is suitable for low DC voltage, small current, fast switching, and occasions requiring good isolation. Thyristor output is suitable for AC or DC high voltage, large current, and occasions with low switching speed requirements.
总办事处

Utsource Holding Company Limited 58474938-000-06-24-A
1111 Sullivan St Irvine, CA 92614 U.S.A.

电话:

邮件:
网址: https://www.utsource.us
网址: https://utsource.newpages.com.my/
网址: https://utsource.onesync.my/

其他办事处

Mexico
Eje Central Lazaro Cardenas No.13 Piso 1005 Col.centro C.P.06050 Mexico,D.F.

电话:
手机:
邮件:

Germany
Germany.

电话:
手机:
邮件:

Hong Kong
FLAT/RM 22 5/F WAH LUEN CENTRE 15-21 WONG CHUK YEUNG STREET FOTAN NT HONG KONG.

电话:
邮件:

游览 : 首页 - 分类 - 公司 - 地区 - 标签 - 商品 - 消息与促销 - 工作征聘 - 手机版 - 谷歌 - 搜索引擎优化结果

NEWPAGES

  • US 11383
  • GB 8988
  • CA 8188
  • AU 7584
  • IE 5490
  • NZ 2260
  • BR 2054
  • SG 768
人 在线
Seni Jaya Logo
Brochure
Download
Our PackageContact Us