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Teardown & Component Analysis

Before proceeding with this page we strongly encourage you to a look at our PSUs 101 article, which provides valuable information about PSUs and their operation, allowing you to better understand the components we're about to discuss.

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General Data
Manufacturer (OEM)	CWT
Platform Model	GPS (Modified)
Primary Side
Transient Filter	4x Y caps, 2x X caps, 2x CM chokes, 1x MOV, 1x CAP004DG
Inrush Protection	NTC thermistor & relay
Bridge Rectifier(s)	1x GBU606 (600V, 6A @ 100°C)
APFC MOSFETs	2x Champion GP18S50G (500V, 28A @ 150°C, 0.19Ω)
APFC Boost Diode	1x STMicroelectronics STTH8R06FP (600V, 8A @ 130°C)
Hold-up Cap(s)	1x Nipon Chemi-Con (400V, 390uF, 2000h @ 105°C, KMR series)
Main Switchers	2x F-Cell SVF13N50F (500V, 10A @ 100°C, 0.52Ω)
APFC Controller	Champion CM6502S & CM03X Green PFC controller
LLC Resonant Controller	Champion CM6901
Topology	Primary side: Half-bridge & LLC resonant converter Secondary side: Synchronous rectification & DC-DC converters
Secondary Side
+12V MOSFETs	4x International Rectifier IRFH7004TRPBF (40 V, 164 A @ 100°C, 1.4Ω)
5V & 3.3V	DC-DC Converters: 2x UBIQ QM3006D FETs (30 V, 57 A @ 100°C, 5.5Ω) 2x UBIQ QM3004D FETs (30 V, 40 A @ 100°C, 8.5Ω) PWM Controller: ANPEC APW7159C
Filtering Capacitors	Electrolytics: Chemi-Con (105°C, KY series, KZE series) Polymers: FPCAP (Japan)
Supervisor IC	Sytronix ST9S429-PG14 (OCP [2x 12V channels, OVP, UVP, PG), Weltrend WD7518D (OCP [2x 12V channels], SCP) & UTC LM393G
Fan Model	Martech DF1202512SEMN (120mm, 12V, 0.16A, 1630 RPM, rifle bearing)
5VSB Circuit
Standby PWM Controller	TinySwitch-LT TNY177PN (18W Peak)