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Corsair SF600 Platinum SFX PSU Review

General Data
Manufacturer (OEM) Great Wall
Primary Side
Transient Filter 4x Y caps, 2x X caps, 3x CM chokes, 1x MOV
Inrush Protection NTC Thermistor & Relay
Bridge Rectifier(s)
1x GBU25KH (800V, 25A @ 125 °C)
APFC MOSFET
1x Infineon IPZ60R099C7 (650V, 14A @ 100°C, 0.099Ohm)
APFC Boost Diode
1x Infineon IDH06G65C6 (600V, 6A @ 145°C)
Hold-up Cap(s)
1x Nippon Chemi-Con (420V, 470uF, 2000h @ 105 °C, KMZ)
Main Switchers
2x 60F2094
Driver IC
Silicon Labs Si8230BD
APFC Controller
Champion CM6502 & CM03X Green PFC controller
Resonant Controller
Champion CM6901X
Topology
Primary side: Half-Bridge & LLC Resonant Controller
Secondary side: Synchronous Rectification & DC-DC converters
Secondary Side
+12V MOSFETS 4x Alpha & Omega AON6590 (40V, 100A @ 100°C, 1.55mOhm)
5V & 3.3V DC-DC Converters: 4x Nexperia PSMN2R0-30YL (30V, 100A @ 25°C, 2mOhm)
PWM Controller: Anpec APW7159C
Filtering Capacitors Electrolytics: Nippon Chemi-Con (4-10,000h @ 105°C, KY), Rubycon (3-6,[email protected] 105°C, YXJ)
Polymers: Nippon Chemi-Con
Supervisor IC IN1S429I -SCG
Fan Control MCU PIC16F1824
Fan Model Corsair NR092L (92mm, 12V, 0.22A, 3950 RPM, rifle bearing)
5VSB Circuit
Rectifier
1x CSD18534 FET (60V, 69A @ 25 °C, 7.8mOhm)
Standby PWM Controller Infineon ICE5QR1680AG

The unit’s original manufacturer is Great Wall Technology, which was strictly guided by Corsair’s engineers. The design is top-notch offering enough clearance for increased airflow while it uses high quality components, to achieve a long lifetime along with good performance.


In the primary side Infineon FETs are used and the medium capacity bulk cap is provided by Chemi-Con, while in the secondary side the +12V FETs are installed on the solder side of the main PCB. Typically a pair of DC-DC converters handle the minor rails and the 5VSB rail uses an advanced PWM controller, for high efficiency and minimized vampire power levels.

The first part of the transient filter is hosted on a small PCB, located right behind the AC receptacle. It consists of two Y and one X caps. There is also a small CM choke there.

 

The second stage of the EMI/transient filter is on the main PCB including two Y and one X caps, two CM chokes and an MOV. The main fuse is covered in heat shrink tubing.

The single bridge rectifier.

The APFC converter uses a single Infineon IPZ60R099C7 FET and a IDH06G65C6 boost diode, provided by the same manufacturer. The bulk cap is made by Nippon Chemi-Con and belongs to the quality KMZ line. It has enough capacity to offer a longer than 17ms hold-up time.

The supervisor IC, a Champion CM6502, is supported by a CM03AX Green PFC controller.

  

The primary switching FETs are two 60F2094, arranged into a half-bridge topology. The LLC resonant controller is a Champion CM6901X IC, which is installed on the solder side of the main PCB. Right next to it we find the protections IC, a IN1S429I -SCG for which we couldn’t find any information on the internet. Finally, the driver IC for the 60F2094 FETs is a Silicon Labs Si8230BD.

The main transformer. The Corsair sticker is damaged, because we applied a huge thermal load on the entire secondary side with a heat gun, to find the over temperature protection triggering point.

Four Alpha & Omega AON6590 FETs regulate the minor rails. The SF600 Gold uses six of those FETs in the same stage. Apparently Corsair figured that this is an overkill, so they removed a couple of them, reducing also the manufacturing cost. The IC that drives the primary switching FETs is installed close to the +12V FETs.

The filtering caps, both polymer and electrolytics, in the secondary side are provided by Chemi-Con. The only exception is one of the caps that filters the 5VSB rail, which is made by Rubycon.

A PIC16F1824 MCU is used to control the fan speed profile. It is installed on the board that hosts the DC-DC converters for the minor rails.

The unit’s DC-DC converters use four Nexperia PSMN2R0-30YL FETs and the common PWM controller is a Anpec APW7159C.

There are lots of polymer filtering caps installed on the modular board.

A Infineon ICE5QR1680AG quasi-resonant controller offers high efficiency in the 5VSB rail, while minimizing at the same time the vampire power.

The soldering quality is very good and all component leads are carefully trimmed.

The cooling fan is the same used in the Gold certified SF600. Its model number is NR092L, it measures 92mm in diameter and it has a rifle bearing. The semi-passive operation will take some burden from the fan, allowing for a higher lifetime.

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