Model Selection Guide
Mechanical Dimensions
Mechanical Notes:
• All dimensions are typical in inch es (mm)
• Tolerance x.xx = ±0.01 (±0.25)
Notes:
1. When measuring output ripple, it is recommended that an external 0.47 µF
ceramic capacitor be placed from the +Vout pin to the -Vout pin for single
output units and from each output to common for dual output units. For
noise sensitive applications, the use of 3.3 µF capacitors will reduce the output
ripple.
2. Transient recovery is measured to within a 1% error band for a load step change
of 50% to 100%.
3. Operation at no-load will not damage these units. However, they may not meet
all specifi cations.
4. Dual output units may be connected to provide a 10 VDC, 24 VDC or 30 VDC
output. To do this, connect the load across the positive (+Vout) and negative
(-Vout) outputs and fl oat the output common.
5. The converter should be connected to a low ac-impedance source. An input
source with a highly inductive impedance may affect the stability of the con-
verter. In applications where the converter output loading is high and input
power is supplied over long lines, it may be necessary to use a capacitor on the
input to insure start-up.
In this case, it is recommended that a low ESR (ESR <1.0Ω at 100 kHz) capacitor
be mounted close to the converter. For 5V input units a 10 µF is recommended,
for 12V input units, a 3.3 µF; and for 24V & 48V units a 2.2 µF.
6. It is recommended that a fuse be used on the input of a power supply for
protection. See the table above for the correct rating.
Model
Number
Input Output
Effi ciency
(%, Typ)
Fuse Rating
Slow-Blow
(mA)
Voltage (VDC) Current (mA) Refl ected
Ripple
Current
(mA, Typ)
Voltage
(VDC)
Current
(mA, Max)
Current
(mA, Min)
Nominal Range Full-Load No-Load
A801ERW 5 4.5 - 9.0 1430 50 25 3.3 1,600.0 60.0 74 4,000
A802ERW 5 4.5 - 9.0 2030 50 25 5.0 1,600.0 50.0 79 4,000
A803ERW 5 4.5 - 9.0 1920 50 25 12.0 660.0 25.0 83 4,000
A804ERW 5 4.5 - 9.0 1920 50 25 15.0 530.0 20.0 83 4,000
A805ERW 5 4.5 - 9.0 2030 50 25 ±5.0 ±800.0 ±80.0 79 4,000
A806ERW 5 4.5 - 9.0 1930 50 25 ±12.0 ±330.0 ±33.5 82 4,000
A807ERW 5 4.5 - 9.0 1930 50 25 ±15.0 ±260.0 ±26.0 82 4,000
A811ERW 12 9.0 - 18.0 666 20 15 3.3 1,200.0 60.0 75 2,000
A812ERW 12 9.0 - 18.0 833 20 15 5.0 1,000.0 50.0 80 2,000
A813ERW 12 9.0 - 18.0 775 20 15 12.0 660.0 25.0 86 2,000
A814ERW 12 9.0 - 18.0 775 20 15 15.0 530.0 20.0 86 2,000
A815ERW 12 9.0 - 18.0 813 20 15 ±5.0 ±800.0 ±80.0 82 2,000
A816ERW 12 9.0 - 18.0 775 20 15 ±12.0 ±330.0 ±33.5 86 2,000
A817ERW 12 9.0 - 18.0 775 20 15 ±15.0 ±260.0 ±26.0 86 2,000
A821ERW 24 18.0 - 36.0 321 10 10 3.3 1,200.0 60.0 78 1,000
A822ERW 24 18.0 - 36.0 397 10 10 5.0 1,000.0 50.0 84 1,000
A823ERW 24 18.0 - 36.0 387 10 10 12.0 660.0 25.0 86 1,000
A824ERW 24 18.0 - 36.0 387 10 10 15.0 530.0 20.0 86 1,000
A825ERW 24 18.0 - 36.0 397 10 10 ±5.0 ±800.0 ±80.0 84 1,000
A826ERW 24 18.0 - 36.0 387 10 10 ±12.0 ±330.0 ±33.5 86 1,000
A827ERW 24 18.0 - 36.0 387 10 10 ±15.0 ±260.0 ±26.0 86 1,000
A831ERW 48 36.0 - 75.0 160 6 100 3.3 1,200.0 60.0 78 500
A832ERW 48 36.0 - 75.0 198 6 100 5.0 1,000.0 50.0 84 500
A833ERW 48 36.0 - 75.0 194 6 100 12.0 660.0 25.0 86 500
A834ERW 48 36.0 - 75.0 194 6 100 15.0 530.0 20.0 86 500
A835ERW 48 36.0 - 75.0 198 6 100 ±5.0 ±800.0 ±80.0 84 500
A836ERW 48 36.0 - 75.0 194 6 100 ±12.0 ±330.0 ±33.5 86 500
A837ERW 48 36.0 - 75.0 194 6 100 ±15.0 ±260.0 ±26.0 86 500
Pin Single Dual Pin Single Dual
2, 3 -Vin -Vin 14 +Vout +Vout
9 No Pin Common 16 -Vout Common
11 NC -Vout 22, 23 +Vin +Vin
NC: No Connection
Pin Connections
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Derating Curve
