
1
H
Powering Communications and Technology
40
45
50
55
60
65
70
75
80
85
90
95
1
2
3
4
5
6
7
8
9
10
X10 = LOAD %
E
OES021ZC-A
OES025ZD-A
OES033ZE-A
OES040ZG-A
MTBF predictions may vary slightly from model to model.
Specifications typically at 25°C, normal line, and full load,
unlessotherwise stated.
Soldering Conditions: I/O pins, 260°C, ten seconds; fully
compatible with commercial wave-soldering equipment.
Safety: Agency approvals may vary from model to model.
Please consult factory for specific model information.
Units are water-washable and fully compatible with commercial
spray or immersion post wave-solder washing equipment.
TECHNICAL SPECIFICATIONS
Industry Standard
Package
100°C Case Operation
Optional Trim and
Enable
Wide Range Input
Voltage
1500V Isolation
Short Circuit Protection
DESCRIPTION
QES single output DC/DC converters provide up to 66
Watts of output power in an industry standard, quarter-
brick package. The QES converters feature open-frame
packaging, along with planar magnetics and a high
efficiency topology to provide maximum useable power
with minimal thermal constraints. The QES is suited to
telecom, networking, and industrial applications, and is
fully compatible with production board washing processes.
FEATURES
QES SERIES
66 WATT
Turn-On Time
Remote Shutdown
Remote Shutdown Reference
Switching Frequency
Isolation
Input - Output
Input - Case
Output - Case
Temperature Coefficient
Case Temperature
Operating Range
Storage Range
Thermal Shutdown Range
Vibration, 3 Axes, 5 Min Each
MTBF(Bellcore TR-NWT-000332)
30 ms
Positive or Negative Logic
VinNegative
300 kHz
1500 VDC
1050 VDC
1050 VDC
±0.02%/°C
-40 To +100°C
-40 To +125°C
105 to 115°C
5 g, 10 - 55 Hz
2.5 X
106hrs
Safety
Weight (Approx.)
UL, cUL, TUV
1.7 oz
Setpoint Accuracy
Line Regulation VinMin. - VinMax., IoutRated 0.2% Vout
Load Regulation IoutMin. - IoutMax., VinNom. 0.5% Vout
Remote Sense Headroom
Minimum Output Current
Dynamic Regulation, Loadstep 25% Iout
Pk Deviation
Settling Time
Voltage Trim Range
Short Circuit And Overcurrent Protection
Short Circuit Current Limit
Current Limit Threshold Range, % of IoutRated 110 - 140%
OVP Trip Range
UVP Trip Range
OVP/UVP Type
±1%
0.5 VDC
10 %, IoutRated
4% Vout
500 mS
±10%
Shutdown
200% Iout
115 - 140% VoutNom.
70 - 90% VoutNom.
Latching
Voltage Range
24 VDC Nominal
48 VDC Nominal
Input Reverse Input Current
18 - 36 VDC
36 - 75 VDC
Shunt Diode
Input
Output
Notes
Efficiency vs. Load (48V Input)
General