NFM-20-3.3 Mean Well, NFM-20-3.3 Datasheet - Page 2

• Manufacturer Part Number: NFM-20-3.3
• Description: Linear & Switching Power Supplies 14.85W 3.3V 4.5A
• Manufacturer: Mean Well

Specifications of NFM-20-3.3

• Product: Switching
• Output Power Rating: 15 W
• Input Voltage: 85 VAC to 264 VAC, 120 VDC to 370 VDC
• Number Of Outputs: 1
• Output Voltage (channel 1): 3.3 V
• Output Current (channel 1): 4.5 A
• Mounting Style: Screw
• Dimensions: 89 mm L x 51 mm W x 19.3 mm H
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

Mechanical Specification
Block Diagram
Derating Curve
100
80
60
40
20
-20
AC Input Connector (CN1) : Molex 41791-03 or equivalent
Pin No.
I/P
FG
0
1
2
3
20W Output Switching Power Supply
AMBIENT TEMPERATURE ( )
10
Assignment
No Pin
AC/N
AC/L
20
FILTER
EMI
30
Mating Housing
or equivalent
Molex 2139
40
(3.8mm)
T2A/250V
0.15"
RECTIFIERS
50
FG
FILTER
T2A/250V
&
3
2
1
60
or equivalent
Molex 2478
Terminal
70
(HORIZONTAL)
To Chassis Grounding
CONTROL
SWITCH-
POWER
PWM
ING
3.5"(88.9mm)
3.2"(81.3mm)
Output Derating VS Input Voltage
DC Output Connector (CN2) : Molex 41791-04 or equivalent
Pin No.
100
90
80
70
60
50
40
1,2
3,4
85
95
Assignment
RECTIFIERS
100
+V
-V
FILTER
&
115
INPUT VOLTAGE (VAC) 60Hz
DETECTION
CIRCUIT
FG
120
Mating Housing
CN2
or equivalent
Molex 2139
140
1
2
3
4
N F M - 2 0
4-0.12"(3.0mm) Dia
Mounting Holes
160
180
or equivalent
200
Molex 2478
Terminal
File Name:NFM-20-SPEC 2009-06-29
220
Unit:inch(mm)
240
fosc : 90KHz
+V
-V
Ta=25
264
s e r i e s