WRA-ZHD-3W&WRB-ZHD-3W
Input Specifications
Parameters
Voltage range
Filter
Turn on Transient process time
Start up time
Absolute Maximum Rating
Peak Input Voltage time
24 Vin
48 Vin
500
-0.7-40
-0.7-80
Nominal
24
48
Typical
9-36
18-72
π (Pi) Network
Maximum
Units
VDC
VDC
350
ms
ms
VDC
VDC
ms
Isolation Specifications
Parameters
Tested I/O voltage
Resistance
Capacitance
Conditions
3 sec
Typical
> 1000
470
Rated
1500
Units
VDC
MOhm
pF
Output Specifications
Parameters
Voltage accuracy
Voltage balance
Short Circuit protection
Short circuit restart
Over current protection
Line voltage regulation (Single)
Line voltage regulation (Dual)
Load voltage regulation (Single)
Load voltage regulation (Single)
3,3V output model
Load voltage regulation (Dual)
Load voltage regulation (Dual)
±3.3V output model
Temperature coefficient
Ripple & Noise
Rising time
At 20MHz Bandwidth
±0.02
60
10
%/℃
mV p-p
ms
0 – 100% load
0 – 100% load
±0.5
±1.5
%
%
0 – 100% load
±1.5
%
120% Iout
±0.5
±0.5
%
%
Dual Output
Conditions
Typical
±1
±1
Continuous
Auto-recovery
Rated
Units
%
%
General Specifications
Parameters
Switching frequency
Operating temperature
Storage temperature
Max Case temperature
Derating
Cooling
Humidity
Case material
Weight
Dimensions (L x W x H)
MTBF
Tolerance ±0.5 mm or ±0.02 inches
26
>960 000 hrs (MIL-HDBK -217F, Ground Benign, t=+25℃)
Not-Required
Free air convection
90
Plastic or Nickel coated copper
g
(1.28 x 0.84 x 0.41 inches )32.25 x 21.35 x 10.50 mm
%
Conditions
100% load
Full Load without Derating
Typical
260
-40 to +85
Maximum
Units
KHz
℃
℃
-40 to +125
+100
℃
Technical Enquiries-Email:tech@microdc.cn Tel:0086-20-86000646
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