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Switching Power Supply LFA50F Model 50W Single Output

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.

Part Number

Configured Part Number is shown.

Product Specifications
Part Numbers
Catalog

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

Block diagram of LFA50F

Dimensional drawing (Standard 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 connector		Compatible housing	Terminal
CN1	1-1123724-3	1-1123722-5	Chain	1123721-1
CN1	1-1123724-3	1-1123722-5	Loose-piece	1318912-1
CN2	1-1123723-4	1-1123722-4	Chain	1123721-1
CN2	1-1123723-4	1-1123722-4	Loose-piece	1318912-1

The connector made by Tyco Electronics is standard.
Option: VH (manufacturer: JST) connector is available for J1.

Pin assignment

CN1

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

CN2

Pin number	Output
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

—	Item		LFA50F-3R3-Y	LFA50F-5	LFA50F-12	LFA50F-15	LFA50F-24	LFA50F-36	LFA50F-48
Maximum output power [W]			33	50	51.6	52.5	50.4	50.4	52.8
DC output			3.3 V 10 A	5 V 10 A	12 V 4.3 A	15 V 3.5 A	24 V 2.1 A	36 V 1.4 A	48 V 1.1 A
Input	Voltage [V]		AC85 to 264 1⌀ (Refer to the section 1.1 and section 3.2 of the instruction manual) *3
	Current [A]	ACIN 100 V	0.47 typ (lo = 100%)	0.67 typ (lo = 100%)
	Current [A]	ACIN 200 V	0.27 typ (lo = 100%)	0.36 typ (lo = 100%)
	Frequency [Hz]		50/60 (47 to 63)
	Efficiency [%]	ACIN 100 V	73.5 typ	77.5 typ	80.0 typ	80.5 typ	81.5 typ	82.0 typ	81.0 typ
	Efficiency [%]	ACIN 200 V	74.0 typ	79.0 typ	81.5 typ	81.5 typ	83.0 typ	83.5 typ	82.5 typ
	Power rate (lo = 100%)	ACIN 100 V	0.96 typ	0.97 typ
	Power rate (lo = 100%)	ACIN 200 V	0.83 typ	0.90 typ
	Inrush current [A]	ACIN 100 V	15 typ (lo = 100%) (At cold start) (Normal temperature)
	Inrush current [A]	ACIN 200 V	30 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)
Output	Rated voltage [V]		3.3	5	12	15	24	36	48
	Rated current [A]		10.0	10.0	4.3	3.5	2.1	1.4	1.1
	Static input fluctuation [mV]*4		20 max	20 max	48 max	60 max	96 max	144 max	192 max
	Static load fluctuation [mV]*4		40 max	40 max	100 max	120 max	150 max	240 max	240 max
	Ripple [mVp · p]	0 to +50°C ※1	80 max	80 max	120 max	120 max	120 max	150 max	150 max
	Ripple [mVp · p]	-10 to 0°C ※1	140 max	140 max	160 max	160 max	160 max	200 max	200 max
	Ripple noise [mVp · p]	0 to +50°C ※1	120 max	120 max	150 max	150 max	150 max	250 max	250 max
	Ripple noise [mVp · p]	-10 to 0°C ※1	160 max	160 max	180 max	180 max	180 max	300 max	300 max
	Ambient temperature fluctuation [mV]	0 to +50°C	50 max	50 max	120 max	150 max	240 max	360 max	480 max
	Ambient temperature fluctuation [mV]	-10 to +50°C	60 max	60 max	150 max	180 max	290 max	450 max	600 max
	Drift over time [mV]*2		20 max	20 max	48 max	60 max	96 max	144 max	192 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 3.63	Internal fixed (Variable by option Y specification ±10%)
	Voltage setting accuracy [V]		3.30 to 3.40	4.90 to 5.30	11.50 to 12.50	14.40 to 15.60	23.00 to 25.00	34.50 to 37.50	46.00 to 50.00
Functions included	Overcurrent protection		It works over 105% of rated current and automatically recovers
	Overvoltage protection [V]		4.00 to 5.25	5.75 to 7.00	13.80 to 16.80	17.25 to 21.00	27.60 to 33.60	41.40 to 50.40	55.20 to 67.20
	Operating indication		N/A
	Remote sensing		N/A
	Remote ON/OFF (RC)		N/A
Dielectric strength	Input - output		3,000 V AC 1-minute cutoff current = 10 mA, 500 V DC 50 MΩ min (Normal temperature, normal humidity)
	Input - FG		2,000 V AC 1-minute cutoff current = 10 mA, 500 V DC 50 MΩ min (Normal temperature, normal humidity)
	Output - FG		500 V AC 1-minute cutoff current = 25 mA, 500 V DC 50 MΩ min (Normal temperature, normal humidity)
Environment	Operating 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)
	Vibration		10 to 55 Hz 19.6 m/s^2 (2 G) period 3 minutes X, Y, Z direction 1 hour each
	Impact		196.1 m/s^2 (20 G) 11 ms X, Y, Z direction 1 time each
Compatible standard	Safety Standard		UL60950-1, C-UL (CSA60950-1), EN60950-1, EN60065, EN50178-acquired, the Electrical Appliances and Materials Safety Act compliant
	Conducted Emissions		FCC-B, VCCI-B, CISPR22-B, EN55011-B, EN55022-B compliant
	Harmonic current		IEC61000-3-2 compliant *5
Structure	External dimensions / weight		50 × 26.5 × 132 mm (W × H × D) / 165 g max (With chassis and cover: 325 g max)
Structure	Cooling method		Natural 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

—		Number of outputs	Series name	Release year	Main features	Safety Standard Environmentally friendly
Circuit board starter type	Single	1	GHA	'13	3 × 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	- SNF: Option with fan
		1	LMA	'14	Compatible with medical electrical equipment, peak compatible	UL and C-UL certified product / DEMKO certified product / CE marking compliant product
		1	LFP	'12	Peak current compatible, LEP series compact version	UL and C-UL certified product / TUV certified product / CE marking compliant product
		1	LFP	'13	Peak current compatible, LEP series compact version
		1	LEP	'02	Peak current compatible	UL and C-UL certified product / TUV certified product / CE marking compliant product
		1	LFA	'09	Circuit board starter type general-purpose power supply, LEA series compact version	UL and C-UL certified product / TUV certified product / CE marking compliant product
		1	LFA	'10
		1	SPLFA	'11	LFA series (with chassis and cover) PSE-acquired product	The Electrical Appliances and Materials Safety Act certified product
		1	LEA	'99	Circuit board starter type general-purpose power supply	UL and C-UL certified product / TUV certified product / CE marking compliant product
		1	LDA	'94	Circuit board starter type general-purpose power supply	UL and C-UL certified product / CSA certified product / TUV certified product / CE marking compliant product
				'95
				'97		UL certified product / C-UL certified product / TUV certified product / CE marking compliant product
		1	LGA	'08	Input 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
	Multi	2	LEB	'00	LEA series 2-output type	UL and C-UL certified product / TUV certified product / CE marking compliant product
		3	LDC	'94	LDA series 3-output type	UL and C-UL certified product / CSA certified product / TUV certified product / CE marking compliant product
		3	LDC	'95	LDA series 3-output type
		2	LB	'92	Circuit 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

Part Number
LFA50F-12
LFA50F-12-SN

Part Number	Standard Unit Price	Minimum order quantity	Volume Discount	Days to Ship	RoHS	Shape	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
	SGD 52.93	1 Piece(s)		4 Day(s) or more	10	Open frame	DC12V	4.3	26.5	50	132	51.6	11.5 to 12.5	Internal fixed	-	NA
	SGD 58.18	1 Piece(s)		12 Day(s) or more	10	[With Cover] With Cover	DC12V	4.3	36	60	162	51.6	11.5 to 12.5	Internal fixed	-	With chassis

Product TOP

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

Configure

2 Part Numbers

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Configure Remaining Specifications

Completed

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

4 Day(s) or Less

12 Day(s) or Less
Clear

Specify Alterations

The specifications and dimensions of some parts may not be fully covered. For exact details, refer to manufacturer catalogs .

Tech Support

Factory Automation, Electronics, Tools, & MRO (Maintenance, Repair and Operations): Tel：(65) 6733 7211 / FAX：(65) 6733 0211; 9:00am - 6:00pm (Monday - Friday); Technical Inquiry

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Switching Power Supply LFA50F Model 50W Single Output

INDEX

Features of LFA50F 50 W

External Shape

Pin assignment

Product specifications

Lineup and features

Development story

Basic Information

Configure

Specification/Dimensions

Shape

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

Output voltage (Single only)

CAD

Days to Ship

Specify Alterations

Tech Support

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