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Switching Power Supply LFA50F Model 50W Single Output

Switching Power Supply LFA50F Model 50W Single Output

COSEL

COSEL

Single substrate /worldwide input / compact input (50W Single output)

[Features]
· Miniaturization (footprint reduced by 38% compared with the past) and common mounting with LGA50A.
· Harmonic current regulations (IEC61000-3-2) conforming.
· Chassis cover, exclusive harness etc., full options SEMIF47 spec compliance.

PDF

Part Number

Configured Part Number is shown.

INDEX

Basic specifications and features of the product

Customers' voice and development story

Product comparison information

 

Features of LFA50F 50 W

External appearance of LFA50F

External appearance of LFA50F

Block diagram of LFA50F

Block diagram of LFA50F

Dimensional drawing (Standard type)

Dimensional drawing (Standard type)

Dimensional drawing (Chassis and cover type)

Dimensional drawing (Chassis and cover type)

The mounting pins are compatible with those of the 100 V input products LGA series, so it can be replaced (50 / 75 / 100 / 150 / 240W)
Harmonic regulation compliant (Compliant with IEC61000-3-2)
Rated output power: 50 W model in the series with models from 10 to 300 W (10/15/30/50/75/100/150/240/300 W)
Circuit board starter / worldwide input / compact input (50 W single output)

External Shape

  • Since the surface mount parts are mounted on the back side, please be careful about contact in consideration of vibration.
  • Please use a spacer of 8 mm or more.
  • There are 4 mounting holes in total.
  • Point A and point B are temperature measurement points.
Input/output connectorCompatible housingTerminal
CN11-1123724-31-1123722-5Chain1123721-1
Loose-piece1318912-1
CN21-1123723-41-1123722-4Chain1123721-1
Loose-piece1318912-1
  • The connector made by Tyco Electronics is standard.
  • Option: VH (manufacturer: JST) connector is available for J1.

Pin assignment

CN1

Pin numberInput
1AC (L)
2—
3AC (N)
4—
5FG

CN2

Pin numberOutput
1, 2- V
3, 4+V
  • CN1 does not have No.2 and No.4 pins
  • Please use CN2 at 5 A or less per pin.
  • General tolerance: ±1
  • Weight: 165 g max (With chassis and cover: 325 g max)
  • Circuit board: Glass composite (CEM3)
  • Chassis and cover are optional (Surface treatment: zinc plating)
  • Chassis mounting hole tightening torque: 0.6 N⋅m (6.3 kgf⋅cm) max

Product specifications

—ItemLFA50F-3R3-YLFA50F-5LFA50F-12LFA50F-15LFA50F-24LFA50F-36LFA50F-48
Maximum output power [W]335051.652.550.450.452.8
DC output3.3 V 10 A5 V 10 A12 V 4.3 A15 V 3.5 A24 V 2.1 A36 V 1.4 A48 V 1.1 A
InputVoltage [V]AC85 to 264 1⌀ (Refer to the section 1.1 and section 3.2 of the instruction manual) *3
Current [A]ACIN 100 V0.47 typ (lo = 100%)0.67 typ (lo = 100%)
ACIN 200 V0.27 typ (lo = 100%)0.36 typ (lo = 100%)
Frequency [Hz]50/60 (47 to 63)
Efficiency [%]ACIN 100 V73.5 typ77.5 typ80.0 typ80.5 typ81.5 typ82.0 typ81.0 typ
ACIN 200 V74.0 typ79.0 typ81.5 typ81.5 typ83.0 typ83.5 typ82.5 typ
Power rate (lo = 100%)ACIN 100 V0.96 typ0.97 typ
ACIN 200 V0.83 typ0.90 typ
Inrush current [A]ACIN 100 V15 typ (lo = 100%) (At cold start) (Normal temperature)
ACIN 200 V30 typ (lo = 100%) (At cold start) (Normal temperature)
Leakage current [mA]0.40/0.75 max (According to each measurement method of 100 V/240 V AC Input 60 Hz, lo = 100%, IEC60950-1, the Electrical Appliances and Materials Safety Act)
OutputRated voltage [V]3.351215243648
Rated current [A]10.010.04.33.52.11.41.1
Static input fluctuation [mV]*420 max20 max48 max60 max96 max144 max192 max
Static load fluctuation [mV]*440 max40 max100 max120 max150 max240 max240 max
Ripple [mVp · p]0 to +50°C ※180 max80 max120 max120 max120 max150 max150 max
-10 to 0°C ※1140 max140 max160 max160 max160 max200 max200 max
Ripple noise [mVp · p]0 to +50°C ※1120 max120 max150 max150 max150 max250 max250 max
-10 to 0°C ※1160 max160 max180 max180 max180 max300 max300 max
Ambient temperature fluctuation [mV]0 to +50°C50 max50 max120 max150 max240 max360 max480 max
-10 to +50°C60 max60 max150 max180 max290 max450 max600 max
Drift over time [mV]*220 max20 max48 max60 max96 max144 max192 max
Startup Time [ms]350 typ (100 V AC Input, lo = 100%)
Retention time [ms]20 typ (100 V AC Input, lo = 100%)
Variable voltage range [V]2.85 to 3.63Internal fixed (Variable by option Y specification ±10%)
Voltage setting accuracy [V]3.30 to 3.404.90 to 5.3011.50 to 12.5014.40 to 15.6023.00 to 25.0034.50 to 37.5046.00 to 50.00
Functions includedOvercurrent protectionIt works over 105% of rated current and automatically recovers
Overvoltage protection [V]4.00 to 5.255.75 to 7.0013.80 to 16.8017.25 to 21.0027.60 to 33.6041.40 to 50.4055.20 to 67.20
Operating indicationN/A
Remote sensingN/A
Remote ON/OFF (RC)N/A
Dielectric strengthInput - output3,000 V AC 1-minute cutoff current = 10 mA, 500 V DC 50 MΩ min (Normal temperature, normal humidity)
Input - FG2,000 V AC 1-minute cutoff current = 10 mA, 500 V DC 50 MΩ min (Normal temperature, normal humidity)
Output - FG500 V AC 1-minute cutoff current = 25 mA, 500 V DC 50 MΩ min (Normal temperature, normal humidity)
EnvironmentOperating temperature/humidity-10 to +70°C, 20 to 90%RH (No condensation) (Refer to the section 3.2 of the instruction manual) *3
Storage temperature/humidity-20 to +75°C, 20 to 90%RH (No condensation)
Vibration10 to 55 Hz 19.6 m/s^2 (2 G) period 3 minutes X, Y, Z direction 1 hour each
Impact196.1 m/s^2 (20 G) 11 ms X, Y, Z direction 1 time each
Compatible standardSafety StandardUL60950-1, C-UL (CSA60950-1), EN60950-1, EN60065, EN50178-acquired, the Electrical Appliances and Materials Safety Act compliant
Conducted EmissionsFCC-B, VCCI-B, CISPR22-B, EN55011-B, EN55022-B compliant
Harmonic currentIEC61000-3-2 compliant *5
StructureExternal dimensions / weight50 × 26.5 × 132 mm (W × H × D) / 165 g max (With chassis and cover: 325 g max)
Cooling methodNatural air cooling (Refer to the section 3.1 and section 3.2 of the instruction manual) *3
  • *1It is a value on a measuring board with a 22 mF capacitor attached to the point at 150 mm from the output terminal. (By 20 MHz oscilloscope or ripple noise meter (KEISOKUGIKEN: RM-103 equivalent)). Since it has a built-in power reduction function during standby and the internal switch element is operated intermittently, the ripple and ripple noise specifications differ at a load factor of Io = 0 to 35%.
  • *2 Drift over time is at ambient temperature of 25°C. It is a change during 30 minutes to 8 hours after applying the input voltage at the rated input/output.
  • *3 Output derating is required. Please contact the manufacturer support center for use with DC.
  • *4 When using multiple units, please contact the manufacturer support center as they may not comply with the regulations.
  • *5 In case of dynamic fluctuation, the specifications may not be satisfied.
  • *6 Please contact the manufacturer support center for other classes.
  • * Please avoid using it in an overloaded state or outside the specification range, as it may damage the internal elements.
  • * Parallel operation is not possible.
  • * Derating is required if the chassis and cover are included.
  • * Sound noise may be heard from the power supply when used for pulse load.
 

Lineup and features

Circuit board starter type

Circuit board starter type

—Number of outputsSeries nameRelease yearMain featuresSafety Standard
Environmentally friendly
Circuit board starter typeSingle1GHA'133 × 5 inch external shape, compatible with medical electrical equipment,
high power density with electric cooling function		UL and C-UL certified product / DEMKO certified product / CE marking compliant product
'15- SNF: Option with fan
'16
1LMA'14Compatible with medical electrical equipment, peak compatibleUL and C-UL certified product / DEMKO certified product / CE marking compliant product
1LFP'12Peak current compatible,
LEP series compact version		UL and C-UL certified product / TUV certified product / CE marking compliant product
'13
1LEP'02Peak current compatibleUL and C-UL certified product / TUV certified product / CE marking compliant product
1LFA'09Circuit board starter type general-purpose power supply,
LEA series compact version		UL and C-UL certified product / TUV certified product / CE marking compliant product
'10
1SPLFA'11LFA series (with chassis and cover)
PSE-acquired product		The Electrical Appliances and Materials Safety Act certified product
1LEA'99Circuit board starter type general-purpose power supplyUL and C-UL certified product / TUV certified product / CE marking compliant product
1LDA'94Circuit board starter type general-purpose power supplyUL and C-UL certified product / CSA certified product / TUV certified product / CE marking compliant product
'95
'97UL certified product / C-UL certified product / TUV certified product / CE marking compliant product
1LGA'08Input 100 V AC system circuit board starter type
General-purpose power supply		UL and C-UL certified product / TUV certified product / CE marking compliant product
Multi2LEB'00LEA series 2-output typeUL and C-UL certified product / TUV certified product / CE marking compliant product
3LDC'94LDA series 3-output typeUL and C-UL certified product / CSA certified product / TUV certified product / CE marking compliant product
'95
2LB'92Circuit board starter type 2-output power supply,
low price has been achieved by limiting performance and functions		—
 

Development story

 

By using the same external shape and mounting as those of the 100 V AC (85 to 132 V) LGA series (output power 50 to 240 W), it is easy to replace even if the customer urgently requests 200 V AC compatibility.
In addition, by expanding the lineup with models from 10 to 307 W as a circuit board starter power supply, even if using multiple units, it is possible to arrange them in the same series.

30
45
60
  1. 1
Part Number
LFA50F-12
LFA50F-12-J1
LFA50F-12-J1Y
LFA50F-12-S
LFA50F-12-SJ1
LFA50F-12-SJ1Y
LFA50F-12-SN
LFA50F-12-SNJ1
LFA50F-12-SNJ1Y
LFA50F-12-SNY
LFA50F-12-Y
Part NumberStandard Unit PriceMinimum order quantityVolume DiscountDays to ShipRoHSShape Output voltage (Single only) Rated output current (single only)
(A) 		Height
(mm) 		Width
(mm) 		Depth
(mm) 		Maximum output power
(W) 		Voltage settings reliability
(V) 		Output voltage variation
(V) 		Connector details Other optional functions

655,149 IDR

1 Piece(s) 8 Day(s) or more 10Open frameDC12V4.326.55013251.611.5 to 12.5Internal fixed-NA

661,204 IDR

1 Piece(s) 8 Day(s) or more -Open frameDC12V4.326.55013251.611.5 to 12.5Internal fixedVH (J.S.T) input connectorNA

673,208 IDR

1 Piece(s) 16 Day(s) or more 10Open frameDC12V4.326.55013251.611.5 to 12.510.8 to 13.2VH (J.S.T) input connectorWith volume

692,559 IDR

1 Piece(s) 16 Day(s) or more 10Open frameDC12V4.326.55013251.611.5 to 12.5Internal fixed-With chassis

692,559 IDR

1 Piece(s) 16 Day(s) or more 10Open frameDC12V4.326.55013251.611.5 to 12.5Internal fixedVH (J.S.T) input connectorWith chassis

546,789 IDR

1 Piece(s) 16 Day(s) or more 10Open frameDC12V4.326.55013251.611.5 to 12.510.8 to 13.2VH (J.S.T) input connector with volume / With chassis

719,648 IDR

1 Piece(s) 16 Day(s) or more 10[With Cover] With CoverDC12V4.3366016251.611.5 to 12.5Internal fixed-With chassis

719,648 IDR

1 Piece(s) 16 Day(s) or more 10[With Cover] With CoverDC12V4.3366016251.611.5 to 12.5Internal fixedVH (J.S.T) input connectorWith chassis

737,708 IDR

1 Piece(s) 16 Day(s) or more 10[With Cover] With CoverDC12V4.3366016251.611.5 to 12.510.8 to 13.2VH (J.S.T) input connector with volume / With chassis

737,708 IDR

1 Piece(s) 16 Day(s) or more 10[With Cover] With CoverDC12V4.3366016251.611.5 to 12.510.8 to 13.2- with volume / With chassis

673,208 IDR

1 Piece(s) 16 Day(s) or more 10Open frameDC12V4.326.55013251.611.5 to 12.510.8 to 13.2-With volume

Loading...

  1. 1
 

Basic Information

Output power(W) 50 Single/multi Single Input Voltage AC-dedicated
Input/output terminal shape Connector Safety standards CE / UL / CUL / TUV / CSA Input Voltage(V) AC85 to 264
Excess current protective circuit Available Excess voltage protective circuit Available

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Specification/Dimensions

  • Shape

    • With Cover
      • With Cover
    • Open frame

    Clear

  • Rated output current (single only)(A)

    • 1.1
    • 1.4
    • 2.1
    • 3.5
    • 4.3
    • 10

    Clear

  • Height(mm)

    • 26.5
    • 36

    Clear

  • Width(mm)

    • 50
    • 60

    Clear

  • Depth(mm)

    • 132
    • 162

    Clear

  • Maximum output power(W)

    • 50
    • 50.4
    • 51.6
    • 52.5
    • 52.8

    Clear

  • Voltage settings reliability(V)

    • 4.9 to 5.3
    • 11.5 to 12.5
    • 14.4 to 15.6
    • 23 to 25
    • 34.5 to 37.5
    • 46 to 50

    Clear

  • Output voltage variation(V)

    • 4.5 to 5.5
    • 10.8 to 13.2
    • 13.5 to 16.5
    • 21.6 to 26.4
    • 32.4 to 39.6
    • 43.2 to 52.8
    • Internal fixed

    Clear

  • Connector details

    • VH (J.S.T) input connector

    Clear

  • Other optional functions

    • with volume
    • NA
    • With chassis
    • With chassis
    • With volume

    Clear

  • Output voltage (Single only)

    • DC5V
    • DC12V
    • DC15V
    • DC24V
    • DC48V
    • Other
      • DC36V

    Clear

  • CAD

    • 2D

    Clear

Days to Ship

    • All
    • 8 Day(s) or Less
    • 16 Day(s) or Less

    Clear

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