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Temperature limitation of each components surface

  If you need to calculate more in detail to choose suitable a far for your application, please refer to information below.

Please address specific temperature range of each component.

Please test under worst case conditions. 

The lower the input voltage is, the more heat tends to generate.

Please ensure a Type K thermocouple is securely attached and anchored during temperature measurement.

Please measure under no air flow conditions and at highest temperature spot throughout a range of temperatures to ensure 

stable operation.

Measured components

*Refer to the following drawing to specify each component location. 

< Image from the top view >

Mounting method

Forced air cooling method requires air flow from external fans.

The insertion length of the power supply mounting screw should be 6mm or less.

Recommended tightening torque for M4 power supply mounting screws: 1.4Nm

3-3

L101

Component name

X Capacitor

Common mode choke

85

115

115

115

Max Temp (degree C)

100

110

105

Secondary side Diode

115

T301

Transformer (Primary side coil)

T301

Transformer (Secondary side coil)

D501

110

110

MOS-FET

Diode

MOS-FET

Poly Switch

Thyristor

PC501

Photo Coupler

Poly Switch

Q101

D102

SCR101

TH101

105

P/N

C101

D101

85

3-4

Q301

TH301

100

Bridge Diode

Q101 

D102 

SCR101 

D101 

PC501 

D501 

Q301 

C101 

L101 

T301 

(secondary coil ) 

TH101 

T301 

(primary coil)  

TH301 

10001-005WE-00

Содержание PFS300A-12

Страница 1: ... on the condition that the product is to be used with forced air cooling To prevent the temperature of internal parts from exceeding the specification ensure that the product is exposed to proper airflow when installing Ensure that wires are properly secured to the input and output terminals as specified in this manual Be sure to turn off the power before making the output connection DO NOT use in...

Страница 2: ...501 L AC Line S Output Remote Sensing N AC Neutral VS Output Voltage Check Frame Ground S Output Remote Sensing V Output terminal VS Output Voltage Check V Output terminal Not in use V Output terminal Not in use V Output terminal R Remote Control ON OFF R Remote Control ON OFF CN502 not included Connector S8B PHDSS JST Housing PHDR 08VS Terminal SPHD 001T P0 5 Crimping tool AP K2N For proper conne...

Страница 3: ... Inrush Current before powering up again Confirm the forced air convection allows for cooling airflow This unit comes with an integral inrush current limiting Remote Sensing circuit using a power thermistor Since SCR is used to prevent inrush current the inrush current limiting circuit may have been released if the The remote sensing function is built in power is turned on again in a short time Be...

Страница 4: ...power supply if it too is configurable in Series in order to increase DC voltage or to provide both and DC voltage In these configurations the MAXIMUM current delivered to the Load is limited to the maximum allowable from the power supply with the lowest current rating To increase VDC PS1 PS2 see configuration 1 below Example If PS1 and PS2 are both 12VDC 30W each then configuration 1 will provide...

Страница 5: ...n below For Medical 60601 Mounting direction a b c d PFS300A 12 By derating the output power loading rate this product can be used in a wide temperature range PFS300A 15 24 30 48 15V 24V 30V 48V 強制空冷 2m s時 参考 3 2 3 1 Mounting Method PFS300A 2 0m s 0 20 40 60 80 100 10 0 10 20 30 40 50 60 L o a d Ambient Temperature 0 20 40 60 80 100 10 0 10 20 30 40 50 60 L o a d Ambient Temperature 0 20 40 60 80 ...

Страница 6: ... Refer to the following drawing to specify each component location Image from the top view Mounting method Forced air cooling method requires air flow from external fans The insertion length of the power supply mounting screw should be 6mm or less Recommended tightening torque for M4 power supply mounting screws 1 4Nm 3 3 L101 Component name X Capacitor Common mode choke 85 115 115 115 Max Temp de...

Страница 7: ...e within spec of 100 240VAC 50 60Hz Confirm all input and output connections are in accordance with above Check the output adjustment potentiometer Sometimes output OVP function turns off the output power when the potentiometer is adjusted too high Please note that an excessive capacitive load can create over current situation Confirm remote on off is getting the appropriate voltage for desired op...

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