Input Fuse

PST21A

Page 2 of 13

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A fuse mounted inside the psu protects against damages in case of a

failure. The fuse is not user-accessible without opening the unit. In DC

mode, reverse polarity at the input is protected and will not cause the

fuse to blow .

Model

Fuse type

Ra�ng

Reference

PST21A

Li�lefuse

15A

0218015.MXP

Input Transient Protec�on

A VDR (Voltage Dependent Resistor) and a common mode input filter form

an effec�ve protec�on against input transients in severe environments.

Electrical Input Data

MIL-STD ruggedized (-M)

Meet MIL-STD 461E CE102, MIL-STD 1399-300A, MIL-STD810E shock &

vibra�ons. No Laboratory cer�fica�on.

-40°C opera�on (-T)

The thermal grade of the Vicor the DC/DC converters used and other

components are changed to comply with low ambiant temperature.

Op�ons Descrip�on

Input

Unit

Characteristics

Conditions

min typ max

Operating input voltage

85

264 Vac

Operating input voltage

120

350 Vdc

Frequency

44 50 440 Hz

Power Factor

230Vac, 50Hz, Pnom.

0,96 0,98

Input current

At Vin min

16

A

No-load input power

At Vin typ

15

W

Peak inrush current

Vin max

4

A

Start-up time

3

s

Input

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Efficiency curve - PST21A-5300-48150-550-3V375

0,00%

10,00%

20,00%

30,00%

40,00%

50,00%

60,00%

70,00%

80,00%

90,00%

100,00%

20%

40%

60%

80%

100%

Output Power

Vin=85Vac

Vin=115Vac

Vin=230Vac

Vin=264Vac

Power factor curve - PST21A-5300-48150-550-3V375

Establisment �me curve at 115Vac - PST21A-5300-48150-550-3V375

Conformal coa�ng (-V)

During manufacturing process , when V op�on is specified,

components and pcb are covered with an acrylic coa�ng to address

high level of ambiant humidity applica�on.

Heatsink (-H, -H1)

-H: a 15 mm heatsink is mounted on the baseplate with longitudinal

fins.

-H1: a 15 mm heatsink is mounted on the baseplate with transversal

fins.

Establisment �me curve at 230Vac - PST21A-5300-48150-550-3V375