ETA-USA Tel: 408-778-2793 Fax: 408-779-2753 e-mail: sales@eta-usa.com

VTA**B Specification

Specifications<AC/DC>

VTA**B

25,30WATTS /3 OUTPUTS

Output Voltage [V]

5

+12

-12

+12

+5

-12

5

+12

-5

5

+15

-15

at horizontal mount 25W

2.8

0.5

0.4

1.5

0.7

0.25

2.8

0.5

0.5

2.8

0.36

0.36

at vertical mount 30W

3.0

0.75

0.5

1.7

0.8

0.3

3.0

0.75

0.75

3.0

0.5

0.5

Voltage Adjust Range

Ripple and Noise [mVp-p](maximum) *3

100

170

170

170

100

170

100

170

100

100

200

200

Regulation

a.Statistic Line Regulation [mV](maximum)

35

84

84

84

35

84

35

84

35

35

105

105

b.Statistic Load Regulation [mV](maximum)

50

120

120

120

50

120

50

120

50

50

150

150

c.Temperature Coefficient *4

d.Drift[mV](maximum) *5

40

75

75

75

40

75

40

75

40

40

90

90

e.Dynamic Load Regulation [mV](typical) *6

150

360

360

360

150

360

150

360

150

150

450

450

f.Recovery Time *6

Rise up time

Hold up time

Overcurrent Protection

Overvoltage Protection

Remote Sense

Remote On/Off

Operating Temperature

Operating Humidity

Storage Temperature

Storage Humidity

Isolation Resistance

Vibration

Shock

Cooling

? Leakage Current

? Line Conduction Noise

? Safety

? Weight (typical)

? MTBF [H]

? Switching Frequency[kHz](typical)

*3 measured by a bayonet probe at the output connector at a 0 to 100MHz bandwidth

*4 at 0 to +50℃

*5 for 7hour period after 1hour warm-up at 25℃ and rated input/output

*6 when output current changed from 25% to 75% of rated output current rapidly at AC100V input

380g

500,000

43

Conditions:

Convection

1.0mA(maximum)

Not specified

-

Secondary-Frame Ground AC500V for 1minute

Primary-Secondary-Frame Ground 50MΩ(minimum) by DC500V insulation tester

Current Limiting with automatic recovery

Zener diode clamping

not available

not available

0.5mS(typical)

200mS(maximum) at 25℃ and rated input/output

10mS(minimum) at 25W/8mS(minimum) at 30W both at 25℃ and rated input/output

Functions

Model

VTA04B

Output Characteristic

Output Current [A]

VTA01B

VTA01B-B

VTA03B

V1:+5% of Rated Output Voltage(at no load within input range)

V2,V3:fixed with tolerance of +/-3.5% Rate Output Voltage(at no load within input range)

0.03%/℃

Environmental

0 to +50℃

85%RH(non-condensing)

-20 to +85℃

30 to 85%RH(non-condensing)

Withstanding Voltage

Primary-Secondary

AC2,500Vfor 1minute

Primary-Frame Ground AC2,500V for 1minute

*1 at cold start

*2 at DC260V and rated output