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Things You Need to Know About PT150S16

Feb01
Browse: 423

The PT150S16 is a high-power diode module from Nihon Inter Electronics Corporation (NIEC), designed for industrial power applications. It handles 1600V and 150A, making it ideal for power supplies, motor drives, and rectifiers. Its three-phase bridge design, isolated case, and flange-mount package ensure safe and stable operation. Since the PT150S16 is discontinued, you must secure bulk orders while stock is available or look for alternative models. This article covers its features, uses, performance, and replacements to help you make the best choice.

Catalog

1. PT150S16 Description
2. PT150S16 Features
3. PT150S16 Circuit Diagram
4. PT150S16 Maximum Ratings
5. PT150S16 Performance Curves
6. PT150S16 Alternatives
7. Comparison Between PT150S16 and PT200S16A
8. PT150S16 Advantages and Disadvantages
9. Things to Check Before Buying PT150S16
10. PT150S16 Common Problems & Fixes
11. PT150S16 Applications
12. PT150S16 Packaging
13. PT150S16 Manufacturer
14. Conclusion
PT150S16

PT150S16 Description

The PT150S16 is a high-power diode module from Nihon Inter Electronics Corporation (NIEC), designed for demanding industrial applications. It features a repetitive peak reverse voltage (VRRM) of 1600V and an average forward current (Io) of 150A, making it ideal for high-power rectification. This module is configured as a three-phase bridge rectifier with six silicon diode elements, ensuring efficient power conversion. Its isolated case connection enhances safety, while the flange-mount package facilitates easy installation. Commonly used in power supplies and industrial equipment, the PT150S16 is a reliable choice for applications requiring robust performance. However, it has been discontinued, making existing stock valuable for those needing replacements or continued use in legacy systems. Businesses requiring the PT150S16 in bulk should act quickly to secure their orders before supplies run out. Purchase your bulk orders today to ensure uninterrupted operation in your industrial applications.

PT150S16 Features

High Voltage Rating: Repetitive peak reverse voltage (VRRM) of 1600V.

High Current Capacity: Average forward current (Io) of 150A.

Three-Phase Bridge Rectifier Configuration: Incorporates six silicon diode elements for efficient AC to DC conversion.

Isolated Case Connection: Enhances safety by electrically isolating the case from internal circuits.

Flange-Mount Package: Facilitates secure and efficient mounting in various industrial setups.

Operating Temperature Range: Designed to operate between -40°C and 150°C, ensuring reliability in diverse environments.

PT150S16 Circuit Diagram

PT150S16 Circuit Diagram

The circuit diagram shown represents a three-phase bridge rectifier configuration, commonly used for converting AC to DC. It consists of six diodes arranged in a three-phase rectification setup, where AC inputs (AC1, AC2, and AC3) are connected to the anodes and cathodes of the diodes. Each phase has two diodes that direct current flow towards the positive and negative terminals. The rectifier works by allowing only positive half-cycles of each AC phase to pass through while blocking the negative cycles, effectively converting the three-phase AC voltage into a pulsating DC output. This design is commonly used in industrial power supplies, motor drives, and high-power applications where efficient AC-to-DC conversion is required. The PT150S16 is a high-power rectifier module rated for 150A and 1600V, making it suitable for heavy-duty applications. It ensures a stable DC output with minimal ripple when combined with proper filtering components.

PT150S16 Maximum Ratings

Parameter
Symbol
Value (PT150S16)
Unit
Repetitive Peak Reverse Voltage  
VRRM
1600
V
Non-Repetitive Peak Reverse Voltage  
VRSM
1750
V
 
Parameter
Symbol
Conditions
Max. Rated Value
Unit
Average Rectified Output Current
Io (AV)
3-Phase Full Wave, Rectified (Tc=70°C Terminal)
150
A
Surge Forward Current *1
IFSM
50Hz Half Sine Wave, 1 Pulse, Non-Repetitive
1200
A
I Squared t *1
I²t
2~10ms
7200
A²s
Operating Junction Temperature Range
Tjw
-
-40 ~ +125
°C
Storage Temperature Range
Tstg
-
-40 ~ +125
°C
Isolation Voltage
Viso
Terminal to Base, AC 1 min.
2500
V
Mounting Torque
Mounting
F
Greased
M5
2.4 ~ 2.8
N·m
Terminal
-
M5
2.4 ~ 2.8
N·m


PT150S16 Performance Curves

PT150S16 Performance Curves

The Forward Current vs. Voltage graph illustrates the relationship between the instantaneous forward voltage and the resulting forward current at different temperatures. At 25°C, the curve demonstrates a lower forward voltage drop for a given current, while at 125°C, the device exhibits a slightly higher current for the same voltage. This indicates that as temperature increases, the forward voltage drop decreases, leading to higher conduction efficiency but also increased thermal stress, which must be managed in design applications.

The Average Forward Power Dissipation curve shows how power dissipation increases with rising output current. In a three-phase system, the dissipation grows almost linearly, reaching around 350W at 150A. This emphasizes the need for efficient thermal management, such as heat sinks, to ensure optimal performance and longevity.

PT150S16 Performance Curves

The Average Output Current vs. Case Temperature graph demonstrates how the PT150S16’s current handling capability decreases as the case temperature rises. At 25°C, the module can sustain an output current of approximately 150A, but as the temperature increases beyond 75°C, the current capacity steadily drops, reaching zero at 125°C. This emphasizes the importance of proper thermal management, such as heat sinks or forced cooling, to maintain the device’s performance and prevent overheating in high-power applications.

The Surge Current Ratings curve indicates the PT150S16’s ability to handle short-term, high-current surges. At 0.02 seconds (one cycle at 50Hz), the device can withstand over 1200A, but this capability decreases as the duration increases, falling below 400A at 1 second. This means that while the module can tolerate brief overcurrent conditions, prolonged exposure to high surge currents should be avoided to prevent damage. Proper circuit protection is required to ensure long-term reliability.

PT150S16 Alternatives

Model
Manufacturer
Current Rating (A)
Voltage Rating (V)
Notes
PT150N16
Nihon Inter Electronics Corporation (NIEC)
150
1600
Direct alternative with similar specs.
PT200S16A
Nihon Inter Electronics Corporation (NIEC)
200
1600
Higher current capacity for high power.
PT150S16C
Nihon Inter Electronics Corporation (NIEC)
150
1600
Variant with similar characteristics.
PT200S16C
Nihon Inter Electronics Corporation (NIEC)
200
1600
Enhanced current capacity.
PT200S8
Nihon Inter Electronics Corporation (NIEC)
200
800
Lower voltage rating option.


Comparison Between PT150S16 and PT200S16A

Feature
PT150S16
PT200S16A
Manufacturer
Nihon Inter Electronics Corporation (NIEC)
Nihon Inter Electronics Corporation (NIEC)
Current Rating (A)
150A
200A
Voltage Rating (V)
1600V
1600V
Configuration
Three-phase bridge rectifier
Three-phase bridge rectifier
Package Type
Flange-mount, isolated case
Flange-mount, isolated case
Operating Temperature
-40°C to 150°C
-40°C to 150°C
Primary Application
Industrial power supplies, rectification
Industrial power supplies, rectification
Availability
Discontinued
Available
Difference
Lower current rating (150A)
Higher current rating (200A), handles more power


PT150S16 Advantages and Disadvantages

Advantages of PT150S16

High Voltage and Current Capacity: With a 1600V voltage rating and 150A current handling, PT150S16 is ideal for high-power industrial applications, ensuring stable performance under heavy loads.

Reliable Three-Phase Rectification: Its three-phase bridge rectifier design enables efficient AC to DC conversion, minimizing ripple and enhancing power stability.

Enhanced Safety with Isolated Case: The flange-mount, isolated case offers electrical insulation, reducing the risk of short circuits and improving operational safety.

Effective Heat Dissipation: Low thermal resistance allows for better heat management, preventing overheating and ensuring long-term reliability.

Strong Surge Current Handling: Built to withstand short bursts of high current, making it suitable for applications where power fluctuations occur.

Disadvantages of PT150S16

Discontinued and Hard to Find: The PT150S16 is no longer in production, making it difficult to source and requiring alternative replacements.

Higher Power Loss: The higher forward voltage drop at increased currents leads to reduced efficiency, especially in energy-sensitive applications.

Requires Additional Cooling: The module produces heat and needs external heatsinking, adding to system complexity and cost.

Slower Switching Speed: Longer reverse recovery time makes it less suitable for high-frequency applications, limiting its use in fast-switching circuits.

Rigid Mounting Design: The flange-mount package may not be compatible with all setups, reducing flexibility in some designs.

Things to Check Before Buying PT150S16

Availability: PT150S16 is discontinued, so finding stock may be difficult. Look for reliable suppliers or alternative models.

Voltage & Current: Make sure the 1600V voltage and 150A current fit your needs. Using the wrong one can cause failure.

Usage: This is a three-phase bridge rectifier, best for industrial power supplies. Check if it suits your circuit.

Heat Management: It gets hot and needs good cooling. Ensure your system has heatsinks or fans.

Handles Power Surges: If your setup has power spikes, this module can handle short bursts of high current.

Mounting Fit: It has a flange-mount design. Check if it fits your setup.

PT150S16 Common Problems & Fixes

Gets Too Hot: The module overheats during use.

- Fix: Add a heatsink or cooling fan for better airflow.

Wastes Power: High voltage drop lowers efficiency.

- Fix: Balance the load properly or use more efficient parts if required.

Wears Out Over Time: Heat and stress make it less effective.

- Fix: Check for damage and replace it if performance drops.

Hard to Find: PT150S16 is discontinued.

- Fix: Look for alternative models like PT150N16 or PT200S16A.

Doesn’t Fit: The mounting design may not work in some setups.

- Fix: Check size before buying or use an adapter if required.

Switches Slowly: It’s not great for high-speed circuits.

- Fix: Add a snubber circuit or use a faster diode if required.

PT150S16 Applications

Industrial Power Supplies: Used in AC to DC conversion for high-power systems.

Motor Drives: Helps in controlling industrial motors by rectifying AC power.

Battery Chargers: Converts AC to DC for charging large batteries in power backup systems.

Welding Machines: Provides stable DC power for arc welding and industrial welding systems.

UPS (Uninterruptible Power Supply): Ensures continuous power by rectifying and regulating DC voltage.

Solar Inverters: Used in solar power systems to handle high voltage rectification.

HVAC Systems: Supports power conversion in large heating, ventilation, and air conditioning units.

Railway and Traction Systems: Used in railway power converters for efficient DC rectification.

Power Rectifiers: Common in high-voltage rectification setups for industrial and commercial use.

Heavy Machinery: Powers large machines requiring high-current DC supply.

PT150S16 Packaging

PT150S16 Packaging

The PT150S16 package dimensions provide a clear layout of the module’s physical design, ensuring compatibility with mounting and electrical connections in power applications.

The top view illustrates a rectangular module with an overall length of 110mm and a width of 50mm. It features six terminal connections, including three AC input terminals labeled AC1, AC2, and AC3, as well as two DC output terminals (+ and -). The terminal spacing is 25mm, ensuring easy wiring access. Additionally, the module has two mounting holes (5.4mm in diameter) at both ends, allowing for secure installation.

The side view emphasizes the module’s height of 24mm, with an additional 4mm protrusion for the terminals. The base includes a flat surface for heat dissipation for thermal management in high-power applications. These compact yet robust dimensions ensure the module fits efficiently into industrial power conversion and rectifier systems.

PT150S16 Manufacturer

The PT150S16 is manufactured by Nihon Inter Electronics Corporation (NIEC), a Japanese company known for power semiconductors. Founded in 1957, NIEC specializes in diodes, rectifiers, and thyristors used in industrial and automotive applications. The company follows strict quality standards, ensuring reliable and durable components. NIEC serves a global market, supplying semiconductors for power conversion, automation, and renewable energy. While the PT150S16 is discontinued, NIEC continues to offer alternative diode modules with similar performance.

Conclusion

The PT150S16 is a reliable rectifier module, widely used in industrial applications. Proper cooling and compatibility checks are maintaining performance. By understanding its features and alternatives, you can make smart purchasing decisions and keep operations running smoothly.

Datasheet PDF

PT150S16 Datasheets

PT150S16 Details PDF
PT150S16 Details PDF for FR.pdf
PT150S16 Details PDF for ES.pdf
PT150S16 Details PDF for DE.pdf
PT150S16 Details PDF for KR.pdf
PT150S16 Details PDF for IT.pdf

Frequently Asked Questions [FAQ]

1. Does PT150S16 require a separate cooling system?

Yes, due to high power dissipation, using heatsinks or forced cooling is recommended.

2. Is the PT150S16 resistant to moisture and dust?

While it has an isolated case, it should be installed in a controlled environment to avoid damage from moisture and dust.

3. Can PT150S16 be paralleled to increase current capacity?

Yes, but proper thermal management and current sharing techniques are required to prevent imbalance.

4. What are the storage conditions for PT150S16?

Store in a dry, cool place between -40°C to 125°C, away from humidity and contaminants.

5. Can PT150S16 handle voltage spikes or surges?

It has high surge current tolerance, but additional protection circuits like MOVs or TVS diodes are recommended.

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