Applications
• Servers, Switches and Data Storage • Networking Gear
W3 SERIES
DC/DC MODULES
• Wireless Communications
• Data Communications
• Telecommunications
• Industrial / Medical
• Distributed Power Architecture
• Semiconductor Test Equipment
The W5 Family of high efficiency DC/DC converters offer power levels of up to 3 Watt, which exceeds that of other sub-bricks with the same package, while also providing Surface Mount Process-
able construction. With a wide input voltage range and single and multi-outputs, these converters provide versatility without sacrificing the board space. All models feature an input filter, continuous
short circuit protection and regulated outputs. The fully enclosed, encapsulated construction facilitates maximum power delivered with the highest efficiency of up to 83%. All converters combine
creative design practices with highly derated power devices to achieve very high reliability, high performance and low cost solution to systems designers.
Specifications & Features Summary
• Regulated Outputs
• 5-sided metal shield
• -25°C to +71°C ambient operation
• Continuous Short-circuit protection
• up to 3KV, 10MΩ input-to-output isolation
• Pi Input Filter
• 100KHz Switching Frequency
Approval Pending
(W7 Model Shown)
• No airflow or heatsink required
• Voltage Accuracy ± 2%
• Delivers up to 5W in 1”x1.25”x0.45” package with Industry-Standard SMD Pinouts
• 2:1 Input Range
• THROUGH-HOLE PACKAGES AVAILABLE (add suffix “T” to the part number)
SPECIFICATIONS
Model Num
W3-12S5
VIn
VOut
5.0 VDC
IOut
INo Load
IFull Load
Eff
Case
T
Input Specifications
9-18 VDC
9-18 VDC
9-18 VDC
9-18 VDC
9-18 VDC
9-18 VDC
9-18 VDC
18-36 VDC
18-36 VDC
18-36 VDC
18-36 VDC
18-36 VDC
18-36 VDC
18-36 VDC
36-72 VDC
36-72 VDC
36-72 VDC
36-72 VDC
36-72 VDC
36-72 VDC
36-72 VDC
600.0 mA
250.0 mA
200.0 mA
±125.0 mA
±100.0 mA
±300.0 mA
600.0 mA
600.0 mA
250.0 mA
200.0 mA
±125.0 mA
±100.0 mA
±300.0 mA
600.0 mA
600.0 mA
250.0 mA
200.0 mA
±125.0 mA
±100.0 mA
±300.0 mA
600.0 mA
7.5 mA
7.5 mA
7.5 mA
12.0 mA
12.0 mA
12.0 mA
7.5 mA
5.0 mA
5.0 mA
5.0 mA
7.5 mA
7.5 mA
7.5 mA
5.0 mA
2.0 mA
2.0 mA
2.0 mA
3.0 mA
3.0 mA
3.0 mA
2.0 mA
545.0 mA
585.0 mA
625.0 mA
575.0 mA
590.0 mA
545.0 mA
393.0 mA
265.0 mA
285.0 mA
305.0 mA
285.0 mA
295.0 mA
265.0 mA
197.0 mA
133.0 mA
145.0 mA
154.0 mA
142.0 mA
147.0 mA
133.0 mA
98.0 mA
76%
80%
80%
80%
80%
76%
70%
78%
82%
82%
81%
81%
78%
70%
78%
81%
81%
81%
81%
78%
70%
W3-12S12
W3-12S15
W3-12D12
W3-12D15
W3-12D5
12.0 VDC
15.0 VDC
±12.0 VDC
±15.0 VDC
±5.0 VDC
3.3 VDC
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
Input Voltage Range
12V----------9-18V
24V--------18-36V
48V--------36-72V
Pi Type
Input Filter
Output Specifications
Voltage Accuracy
Voltage Balance(Dual)
Temperature Coefficient
+/-2.0% max.
+/-1.0% / max.
+/-0.05% / oC
W3-12S3.3
W3-24S5
5.0 VDC
W3-24S12
W3-24S15
W3-24D12
W3-24D15
W3-24D5
12.0 VDC
15.0 VDC
±12.0 VDC
±15.0 VDC
±5.0 VDC
3.3 VDC
3.3V / 5V----------100mV p-p max.
12V / 15V---------------1% p-p max.
Short Circuit Protection
Line Regulation, Single/Dual1
Load Regulation, Single2
Dual3
Continuous
+/-0.5%
+/-0.5%
+/-1.0%
W3-24S3.3
W3-48S5
5.0 VDC
W3-48S12
W3-48S15
W3-48D12
W3-48D15
W3-48D5
12.0 VDC
15.0 VDC
±12.0 VDC
±15.0 VDC
±5.0 VDC
3.3 VDC
Efficiency
T
T
T
T
Isolation Resistance
Switching Frequency
Operating Temperature Range
Case Temperature(Plastic case)
(Copper case)
109 ohms
100KHz, min
-25oC to +71oC
95oC max.
W3-48S3.3
100oC max.
Cooling
Storage Temperature Range
Dimensions
Free-Air Convection
-40oC to +100oC
1.25X0.8X0.4 Inches
(31.8X20.3X10.2mm)
Isolation Voltage
500VDC min
3K VDC min4
Standard Models
Suffix"H" Models
Case Material
Standard Models
Suffix"M" Models5
Non-Conductive Black Plastic
Black Coated Copper with Non-
Conductive Base
Notes
1.
Measured From High Line to Low
Line
2.
3.
Measured From Full Load to 10%
Load
Measured From Full Load to 1/4
Load
4.
5.
Non-Conductive Black Plastic Only
Suffix"HM" 1.5K VDC Instead of 3K
VDC Isolation
Typical at Ta= +25 ºC under nominal input voltages of 12V, 24V and 48VDC, unless noted. The information and specifications contained in this brief are believed to be accurate and reliable at the time of publication.
Specifications are subject to change without notice. Refer to product specification sheet for performance characteristics and application guidelines.
Consult factory for hundreds of other available input/output voltage configurations.
Intronics Power Inc. 1400 Providence Highway, Building 2, Norwood, MA 02062-5015
•
Phone 1-781-551-5500 Fax: 1-781-551-5555 Rev. B
•
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