Sanghvi Electronics

1. General Overview

• IGDRA5E00100936 is an instrument current transformer (CT) used for:

  • Current measurement

  • Protection and monitoring

• Typically integrated in:

  • Industrial drives

  • Power converters

  • Control systems

�� It converts high primary current → low proportional secondary current for safe measurement.

2. Operating Principle

• Works on electromagnetic induction:

  • Primary conductor (busbar/cable) passes through CT core

  • Produces magnetic flux

  • Secondary winding generates proportional current

�� The secondary current is:

Is=IpNI_s = \frac{I_p}{N}Is​=NIp​​

• Where:

  • IpI_pIp​ = primary current

  • IsI_sIs​ = secondary current

  • NNN = turns ratio

➡️ CTs are always connected in series with the load

3. Typical Technical Features

(Estimated based on similar industrial CT designs)

• Type: Toroidal / ring-type current transformer

• Measurement type: AC current sensing

• Galvanic isolation between primary and secondary

• High reliability laminated or ferrite core

• Compact encapsulated design (epoxy / resin)

4. Electrical Characteristics (Typical Range) Primary Side

• Primary current range:

  • Typically tens to hundreds of amperes (depends on application)

• Frequency:

  • 50 / 60 Hz (standard industrial systems)

Secondary Side

• Secondary current:

  • Common values: 1 A or 5 A

• Output type: current (not voltage)

• Burden rating:

  • Typically 2.5 VA – 30 VA (depending on design)

Accuracy

• Typical classes:

  • 0.2 / 0.5 / 1 (metering)

  • 5P / 10P (protection)

5. Thermal & Environmental Characteristics

• Operating temperature:

  • approx. −25°C to +80°C

• Storage temperature:

  • approx. −40°C to +80°C

• Humidity tolerance: up to 95% (non-condensing)

6. Insulation & Safety

• High insulation level between primary and secondary

• Designed according to standards such as:

  • IEC 61869-2 (current transformers)

• Isolation voltage: typically several kV

�� Ensures safe operation in high-voltage environments

7. Mechanical Characteristics

• Core type: Toroidal (ring type)

• Mounting:

  • PCB mount / panel mount / busbar mount

• Terminals: screw or wire leads

• Encapsulation: resin molded housing

8. Applications

• Industrial motor drives (VFDs)

• Power converters / inverters

• Switchgear and protection systems

• Energy metering equipment

• UPS systems

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📦 General Overview

The MDO500‑16N1 is a high‑power diode module, not a full IGBT module, used in power electronic systems as a single rectifier / free‑wheel diode. It is designed for high‑current AC‑to‑DC rectification in industrial converters, motor drives, UPS systems, and other heavy‑duty power applications.

• Module type: Single diode power module

• Manufacturer: IXYS / Littelfuse

• Voltage rating: 1600 V (Repetitive peak reverse)

• Rated forward current: ~560 A average

• Package: Y1‑CU chassis‑mount module

• Typical applications: rectifiers, bridge converters, PWM inverter input stage, free‑wheeling diode, DC motor drive rectification.

🔌 Electrical Specifications

The module exhibits very low leakage current and low forward voltage drop for efficient rectification and reduced power loss.

🔋 Internal Configuration & Function

The MDO500‑16N1 contains:

• A single high‑current power diode chip

• Mounted on a Direct Copper Bonded (DCB) ceramic baseplate for electrical isolation and thermal conduction

• A metal base plate with screw terminals for secure chassis mounting

📌 Operation principle:

• When the diode is forward biased, it conducts current in one direction with minimal voltage drop.

• In reverse bias, the diode blocks voltage up to its 1600 V rating, making it suitable for rectifying AC into DC in front‑end circuits.

📐 Mechanical & Thermal Details

• Package: Y1‑CU power module

• Mounting: Screw/chassis mount

• Baseplate: Copper with DCB insulating ceramic

• Thermal performance: Good heat removal capabilities with external heatsinking

 

⚙️ Key Features & Benefits

✔ Very high current rating (560 A average) suitable for heavy power rectification
✔ High reverse‑voltage tolerance (1600 V) for medium‑voltage applications
✔ Low forward voltage drop for improved efficiency
✔ Fast recovery characteristics compared to older diode modules
✔ Good mechanical robustness and reliable chassis mounting

🛠 Typical Applications

The MDO500‑16N1 module is widely used in:

• AC‑DC rectifier bridges for high‑power converters

• Free‑wheel diode in IGBT and thyristor inverter circuits

• Motor drive rectification stages

• UPS and battery power rectifiers

• DC power supplies and inverters

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📌 General Overview

The 2MBI200S‑120 is a dual‑switch IGBT (Insulated Gate Bipolar Transistor) module in a half‑bridge configuration from Fuji Electric designed for medium‑power, high‑efficiency switching in industrial converters. It’s widely used in inverter drives, motor controllers, UPS systems, welding machines, and other power electronic systems.

The module combines two high‑current IGBTs and integrated freewheeling diodes into a compact industrial power module with excellent thermal performance and low losses.

⚙️ Key Electrical Ratings 🧩 Module Configuration & Technology

• Topology: 2‑Pack / Half‑Bridge (two IGBTs + integrated diodes) — simplifies building inverter legs and DC–AC stages.
• IGBT Type: Silicon IGBTs optimized for low conduction and switching losses suitable for PWM control.
• Package: Rugged industrial power module with strong isolation and provisions for heatsink mounting.
• Low Inductance Design: Minimizes voltage overshoot and improves switching performance.

🔧 Electrical & Thermal Characteristics

• Low V_CE(sat): Improves efficiency with reduced conduction losses at high currents.
• High Power Dissipation: Capability to manage significant heat when properly heatsinked.
• Switching Performance: Module supports typical PWM switching frequencies in industrial converters (often up to ~10–20 kHz depending on design).
• Thermal Reliability: Designed to handle repeated thermal cycling and higher junction temperatures without degradation.

🏭 Typical Applications

This IGBT module is designed for use in:

• Three‑phase motor drives and inverters (AC induction, synchronous motors)
• Uninterruptible Power Supplies (UPS) and power conditioning units
• Welding and industrial heating equipment
• Renewable energy inverters (solar/wind)
• Industrial converters and PWM power stages

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 General Overview

The 7MBI75U4S‑120 is a 1200 V, ~75 A class IGBT power module manufactured by Fuji Electric. It integrates multiple insulated‑gate bipolar transistors and anti‑parallel freewheeling diodes into a single compact module. This design provides robust, efficient switching for high‑voltage industrial applications, such as three‑phase inverters for motors, UPS systems, renewable energy converters, and general power control electronics.

Depending on variant (e.g., *‑50 suffix), there are small differences in mounting form and package, but the core characteristics remain similar.

⚡ Core Electrical Specifications

Voltage & Current Ratings

• Collector‑Emitter Voltage (V_CES): 1200 V DC – suitable for 600–800 V DC‑link industrial power systems.

• Nominal Collector Current (I_C): ~75 A continuous current capability.

• Short‑Circuit/Peak Current: Typically ~150 A (pulse) capability for brief conditions (~10 µs).

• Gate‑Emitter Drive Voltage (V_GE): ±20 V standard gate drive.

Switching and Conduction Behavior

• Fast switching characteristics: Suitable for PWM and high‑efficiency inverter operation.

• Freewheeling diodes: Integrated per switch leg to support bidirectional current and reduce external diode count.

🌡️ Thermal & Mechanical Properties

• Operating Temperature Range: ~–40 °C to +125 °C under normal conditions.

• Short‑Term Junction Capability: Typical design supports transient junction excursions (temperature dependent).

• Isolation Voltage: ~2500 V RMS (1 min) between power terminals and baseplate for safety isolation.

• Package Style: Dual‑in‑line module with solder‑or‑pin terminals, compact industry standard form.

🧠 Module Features & Technology

• Modular Power Stage: Combines multiple IGBTs and diodes into one module, simplifying inverter design and reducing PCB area.

• Low conduction and switching losses: Optimized chip design for efficient mid‑power operation.

• Robust thermal performance: Suitable for industrial environments with effective heat removal to heatsinks.

• High reliability: Engineered for longevity under repetitive high‑voltage switching stress.

📍 Typical Applications

The 7MBI75U4S‑120 is widely used in:

• Three‑phase inverter stages in AC motor drives.

• Uninterruptible Power Supplies (UPS) and static power conversion.

• Industrial power converters and PWM power stages.

• Renewable energy inverters (e.g., small/medium solar or wind systems).                                                                                             

MMF600S120U MACMIC IGBT MODULE

1. General Overview

• LA205-S is a closed-loop Hall-effect current transducer manufactured by LEM.

• It is designed for precise measurement of AC, DC, and pulsed currents.

• Provides galvanic isolation between:

  • High-power primary circuit

  • Low-power measurement/control circuit

2. Operating Principle

• Uses closed-loop (compensated) Hall Effect technology:

  • Primary current creates a magnetic field

  • Hall sensor detects flux

  • Compensation current is generated in secondary winding

👉 Output current is proportional to input current → high accuracy and fast response.

3. Key Features

• Nominal primary current (IPN): 200 A

• Measurement range: ±300 A

• Closed-loop Hall effect sensor

• Galvanic isolation

• High accuracy (~±0.8%)

• Wide bandwidth (DC to ~100 kHz)

• Fast response time (~1 µs)

• Excellent linearity and low temperature drift

• High immunity to electromagnetic interference

4. Electrical Characteristics Primary Side

• Nominal current (IPN): 200 A

• Measuring range (IP): 0 to ±300 A

• Overload capability: up to ~600 A (short duration)

Secondary Side

• Output type: Current output

• Nominal secondary current (ISN): 100 mA

• Conversion ratio: 1 : 2000

👉 Example:
200 A primary → 100 mA secondary

Supply Requirements

• Supply voltage: ±12 V to ±15 V

• Current consumption: ~20 mA

5. Accuracy & Dynamic Performance

• Accuracy: ±0.8% (at 25°C)

• Linearity error: <0.1%

• Offset current: very low (~±0.15 mA)

• Bandwidth: DC to 100 kHz

• Response time: <1 µs

👉 Suitable for fast-switching power electronics (IGBT, PWM systems)

6. Isolation & Safety

• Isolation voltage: up to ~3.25 kV (basic insulation)

• Safe separation voltage: ~1625 V RMS

• Insulated plastic case (UL94-V0)

7. Thermal & Environmental Data

• Operating temperature: −10°C to +85°C

• Storage temperature: −40°C to +90°C

• Low thermal drift → stable measurements

8. Mechanical Characteristics

• Mounting: Panel mount

• Primary conductor: passes through aperture

• Aperture size: approx. 22.7 × 17.4 mm

• Weight: ~110 g

9. Applications

Widely used in:

• AC variable speed drives / servo drives

• Static converters for DC drives

• UPS systems

• SMPS (Switched Mode Power Supplies)

• Battery-powered systems

• Welding equipment

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