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