Part Analysis
| General Data | |
| Manufacturer (OEM) | FSP |
| PCB Type | Single-Sided |
| Primary Side | |
| Transient Filter | 4x Y caps, 2x X caps, 2x CM chokes, 1x MOV |
| Inrush Protection | 1x NTC Thermistor SCK 202R0 (2 ohm) & Relay |
| Bridge Rectifier(s) |
2x GBJ25V08 (800V, 25A @ 25°C)
|
| APFC MOSFETs |
2x Wuxin Unigroup Microelectronics TPW65R075DFD (700V, 27A @ 100°C, Rds(on): 0.075Ohm)
|
| APFC Boost Diode |
1x ROHM SCS310AM (650V, 10A @ 95°C)
|
| Bulk Cap(s) |
2x Elite (420V, 390uF or 780uF combined, 2,000h @ 105°C, PL)
|
| Main Switchers |
2x Magnachip MMFT65R090RTH (650V, 22A @ 100°C, Rds(on): 0.090Ohm)
|
| IC Driver |
Novosense NSi6602
|
| Resonant Controller |
Champion CM6901X
|
| APFC Controller |
Champion CM6500UNX
|
| Topology |
Primary side: APFC, Half-Bridge & LLC Resonant converter
Secondary side: Synchronous Rectification & DC-DC converters |
| Secondary Side | |
| +12V MOSFETs | 6x Toshiba TPHR8504PL (40V, 150A @ 25°C, Rds(on): 0.85mOhm) |
| 5V & 3.3V | DC-DC Converters: 4x Magnachip MDU1513 (30V, 70.4A @ 70°C, Rds(on): 4.6mOhm) PWM Controller(s): UPI-semi uP3861P |
| Filtering Capacitors | Electrolytic: 5x Elite (3-5,000h @105°C, EJ) 5x Elite (2-5,000h @105°C, ED) 4x Elite (3-6,000h @105°C, EV) Polymer: 8x Apaq, 7x Elite (CS), 5x CapXon |
| Supervisor IC | Weltrend WT7527RA (OCP, OVP, UVP, SCP,PG) |
| Fan Controller | Grenergy GR8031 |
| Fan Model | Pure Wings 3, BQPUW3-14025-HR (140mm, 12V, 0.42A, Rifle Bearing Fan) |
| 5VSB | |
| Rectifier | |
| Standby PWM Controller |
MPS MP9989
|
This platform is provided by FSP, which has a long-standing cooperation with be quiet! The PCB is loaded with parts, but there is enough free space on the secondary side for good airflow, although the main filtering caps are a bit close to the 12V rail’s heatsinks. This is the case, though, in most PSUs, and this is why the fan’s cooling is required to keep the operating temperatures of the capacitors as low as possible. Remember, a 10 °C decrease in an electrolytic cap’s operating temperature doubles its life!
The same PCB is used for all Power Zone 2 members; its markings clearly show this. This seems to be a specialized be quiet! (aka exclusive) platform. Manufacturers usually do this for large brands like be quiet!, Corsair etc. They provide some exclusive designs that nobody else can have. The platform’s design is typical of a new design. APFC, half-bridge, and an LLC resonant converter for taking over the primary and the 12V FETs. The minor rails are generated through a pair of DC-DC converters.
The soldering quality is good.
To keep costs down, FSP mainly uses Elite capacitors. These capacitors are fine in terms of performance and reliability. You can find more information about capacitor performance and other specs below:
Since the main PCB didn’t have enough space for more capacitors to filter the rails before they left the PSU’s sockets, FSP used several polymer and electrolytic caps on the modular panel. A secondary filtering layer on the modular PCB is a good choice.
The cooling fan uses a Rifle bearing, and it’s of good quality. You cannot go wrong with a be quiet! fan.
Also why did fsp also saving cost on bigger NTCs? 160A+ inrush is very high for my liking 🧐
Too high for my liking*
Imo, pretty overpriced for the build quality it offers.