Overview
The MR751G is a high-current lead-mounted rectifier from onsemi, designed to offer robust performance and reliability in various power rectification applications. This device is part of the MR750 series, which is known for its high surge capacity and insulated case. The MR751G is a Pb-free version, aligning with modern environmental standards. It features a diffused junction silicon rectifier with a peak repetitive reverse voltage of 100 volts, making it suitable for a wide range of industrial and commercial uses.
Key Specifications
| Characteristic | Symbol | MR751G | Unit |
|---|---|---|---|
| Peak Repetitive Reverse Voltage | VRRM | 100 | V |
| Non-Repetitive Peak Reverse Voltage (Halfwave, single phase, 60 Hz peak) | VRSM | 120 | V |
| RMS Reverse Voltage | VR(RMS) | 70 | V |
| Average Rectified Forward Current (Single phase, resistive load, 60 Hz) | IO | 22 (TL = 60°C, 1/8 in Lead Lengths) 6.0 (TA = 60°C, P.C. Board mounting) | A |
| Non-Repetitive Peak Surge Current (Surge applied at rated load conditions) | IFSM | 400 (for 1 cycle) | A |
| Operating and Storage Junction Temperature Range | TJ, Tstg | -65 to +175 | °C |
| Maximum Instantaneous Forward Voltage Drop (iF = 100 A, TJ = 25°C) | vF | 1.25 | V |
| Maximum Forward Voltage Drop (IF = 6.0 A, TA = 25°C, 3/8 in leads) | VF | 0.90 | V |
| Maximum Reverse Current (TJ = 25°C, Rated DC Voltage) | IR | 25 μA | μA |
Key Features
- Current capacity comparable to chassis-mounted rectifiers.
- Very high surge capacity.
- Insulated case.
- Pb-free packages available.
- Corrosion-resistant finish and readily solderable terminal leads.
- High forward current ratings with low forward voltage drop.
- Wide operating and storage junction temperature range (-65°C to +175°C).
Applications
The MR751G is suitable for various applications requiring high-current rectification, including:
- Power supplies and DC power systems.
- Industrial control systems.
- Automotive systems.
- Telecommunications equipment.
- High-reliability rectification in harsh environments.
Q & A
- What is the peak repetitive reverse voltage of the MR751G?
The peak repetitive reverse voltage (VRRM) of the MR751G is 100 volts.
- What is the maximum non-repetitive peak surge current for the MR751G?
The maximum non-repetitive peak surge current (IFSM) for the MR751G is 400 amps for one cycle.
- What is the operating junction temperature range for the MR751G?
The operating and storage junction temperature range for the MR751G is -65°C to +175°C.
- Is the MR751G Pb-free?
- What is the maximum instantaneous forward voltage drop for the MR751G at 100 A and 25°C?
The maximum instantaneous forward voltage drop (vF) at 100 A and 25°C is 1.25 volts.
- What are the typical applications for the MR751G?
The MR751G is typically used in power supplies, industrial control systems, automotive systems, telecommunications equipment, and other high-reliability rectification applications.
- How does the MR751G handle high surge currents?
The MR751G is designed with very high surge capacity, making it capable of handling significant surge currents.
- What is the weight of the MR751G?
The weight of the MR751G is approximately 2.5 grams.
- What is the lead temperature for soldering purposes?
The lead temperature for soldering purposes is 260°C maximum for 10 seconds.
- Is the MR751G corrosion-resistant?
