FSP350-F35 A Series 350W ITE Power Supply Datasheet

Product Overview

The FSP350-F35 A Series is a 350W ITE (Information Technology Equipment) switching power supply designed for reliability and efficiency. It features a low-profile, compact 3 x 5 x 1.34-inch package, making it suitable for space-constrained applications. This PSU offers a standby power consumption of less than 0.5W and meets stringent safety standards including IEC 60950-1 and IEC 62368-1. It is capable of delivering 350 watts continuous power with 16 CFM forced air cooling or 200 watts continuous power with convection cooling. The product is ideal for audio & video, display, information, networking, and PoE applications.

Key Features

Class-I design
Meets IEC 60950-1 and IEC 62368-1 safety standards
Low profile: 3 x 5 x 1.34 inches
Standby power less than 0.5W
EN 55032 Class B radiated emission compliance
High altitude operation up to 5000 meters
Over Temperature Protection (OTP), Brown-out protection
12V Fan driver output

Safety Standard Approvals

[CE certification], [CB Scheme certification], [UL 62368-1 certification], [CSA C22.2 NO. 62368-1-14 certification]

Specifications

Input Specifications

Input voltage: 90-264 VAC
Input frequency: 47-63 Hz
Input current: 3.7 A (rms) at 115 VAC; 1.76 A (rms) at 230 VAC
Standby power consumption: ≤ 0.5W
Earth leakage current: 1.5 mA max. at 264 VAC, 63 Hz
Touch current: 0.25 mA max. at 264 VAC, 63 Hz

Output Specifications

Output voltage/current: See rating chart
Fan driver: Non-regulated 12V @ 500 mA max.
Total output power: 350W
Protection:
- Over voltage: Less than 140% of output voltage & Latch off
- Short circuit & Over current: Auto recovery
- Over temperature: Latch off or auto recovery
- Brown out: Set at 70VAC
Temperature coefficient: All outputs ±0.04% /°C maximum
Transient response: Maximum excursion of 4% or better on all models, recovering to 1% of final value within 500 μs after a 25% step load change

Environmental Specifications

Operating temperature: -20°C to +70°C
Storage temperature: -40°C to +85°C
Relative humidity: 5% to 95% non-condensing
Derating: Derate from 100% at +50°C linearly to 50% at +70°C, applicable to both convection and forced-air cooling conditions

General Specifications

Power factor: 0.98 minimum at 115VAC & 100% load; 0.9 minimum at 230VAC & 100% load
Efficiency: See rating chart
Power turn-on time: 2.0 Sec maximum
Hold-up time: 35 mS minimum at 115 VAC @ 200W; 10 mS minimum at 115VAC @ 350W
Line regulation: ±0.5% maximum at full load
Inrush current: 50 A at 115 VAC, at 25°C cold start, 350W; 100 A at 230 VAC, at 25°C cold start, 350W
Operating altitude: 5000 meters above sea level
Withstand voltage: 3000 VAC from input to output; 1500 VAC from input to ground; 1500 VAC from output to ground
Isolation Resistance: Input to output 100M ohm @ 500Vdc, 25°C
MTBF: 400,000 hours minimum at full load at 25°C ambient, calculated per BELL CORE SR-332

EMC Performance

EN55032: Class B conducted, Class B radiated
FCC: Class B conducted, Class B radiated
VCCI: Class B conducted, Class B radiated
EN61000-3-2: Harmonic distortion, Class A and D
EN61000-3-3: Line flicker
EN61000-4-2: ESD, ±8 KV air and ±4 KV contact
EN61000-4-3: Radiated immunity, 3 V/m
EN61000-4-4: Fast transient/burst, ±1 KV
EN61000-4-5: Surge, ±1 KV diff., ±2 KV com
EN61000-4-6: Conducted immunity, 3 Vrms
EN61000-4-8: Magnetic field immunity, 1 A/m
EN61000-4-11: Voltage dip immunity: 30% reduction for 500 ms, criteria A; >95% reduction for 10 ms, criteria A; >95% reduction for 5000 mS, criteria B

Performance Curves

Input Voltage Derating Curve

A line graph illustrating the relationship between input voltage and output power. The x-axis represents Input Voltage (Vac) from 90 to 264. The y-axis represents % Output Power from 0 to 100. The graph shows that the output power remains at 100% across the entire input voltage range.

Output Power Derating Curve

A line graph showing how output power is affected by temperature. The x-axis represents Temperature (°C) from -20 to 70. The y-axis represents % Max Load from 0 to 100. Two curves are displayed: "Forced air" and "Convection cooling". The "Forced air" curve maintains 100% load up to approximately 50°C before derating, while the "Convection cooling" curve begins derating at a lower temperature, around 30°C.

Output Voltage/Current Rating Chart

Model	Voltage	Min. Load	Max. Current (convection)	Max. Current (16 CFM)	Load Regulation	Ripple & Noise	Max. Power	Efficiency (115/230 Vac typical)
FSP350-F35-A12	12 V	0 A	16.7 A	29.2 A	±3%	120 mV	200 W / 350 W	88 / 92%
FSP350-F35-A18	18 V	0 A	11.1 A	19.5 A	±3%	180 mV	200 W / 350 W	88 / 92%
FSP350-F35-A24	24 V	0 A	8.3 A	14.6 A	±3%	240 mV	200 W / 350 W	88 / 93%
FSP350-F35-A54	54 V	0A	3.7 A	6.5 A	±3%	540 mV	200 W / 350 W	89 / 94%

Notes:

Ripple and noise is the maximum peak-to-peak voltage value measured at the output within a 20 MHz bandwidth, at rated line voltage and output load ranges, and with a 10 μF electrical capacitor in parallel with a 0.1 μF ceramic capacitor across the output.
The first value of maximum current is at convection cooling. The second value is with 16 CFM forced air provided by the user.

Mechanical Specifications

Dimensions: 76.2 x 127 x 34 mm

Weight: 303 grams (0.667 lbs.) approx.

Ground pad: 8 x 6.35 x 0.8 mm

Connector Pin Assignments

Input Connector (IN1)

Pin No.	Function	Wafer
1	Line	JST B2P3-VH or EQU
2	Neutral	JST B2P3-VH or EQU
3	Ground	JST B2P3-VH or EQU

Output Connector (CN2): 24V & 54V Models

Pin No.	Function	Wafer
1, 2, 3	+V	J.S.T B6P-VH or EQU
4, 5, 6	+V RTN	J.S.T B6P-VH or EQU

DC Output (CN2, CN3): 12V & 18V Models

M3 screw connectors

Fan Driver (CN3)

Pin No.	Function	Wafer
1	RTN	MOLEX 22-27-2021 or EQU
2	+12V	MOLEX 22-27-2021 or EQU