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Modular Block (MB3) Series Up To 100 Watts
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Prime Power's Modular Block (MB3) Series of DC/DC converters are designed for military and aerospace applications but can be used in ruggedized systems as well.
These DC/DC power converters:
- Are a fixed frequency technology.
- Have single ended forward converter topology.
- Employ fewer component enhanced reliability with higher M.T.B.F. numbers.
- Conduction cooling allows for higher density system architecture.
The Modular Block MB3 Series of power converters can be PC board mounted or used with Prime Power's modular systems for a turn-key solution.
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Modular Block (MB3) Series Up To 100 Watts
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Features & Data Sheet
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Features
- Over temperature shutdown
- Over current protection
- Fixed frequency
- Low thermal resistance
- PC or chassis mounting
- Modified standards upon request
- Ruggedized meets MIL-STD-810
- 28/48/300 Vdc input
- Paralleling with current sharing
- Operates -55°C to +85°C
- Industry Standard Footprint
- Non-standard outputs upon request
Download our Data Sheet here.
(Download Size: 83K)
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Technical Data
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| INPUT CHARACTERISTICS |
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ISOLATION |
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| Voltage: |
28 Vdc (18-40 Vdc) |
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Input/Output Isolation: |
1000 Vdc |
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48 VDC (36-72 Vdc) |
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Input/Baseplate Isolation: |
1000 Vdc |
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300 VDC (220-400 Vdc) |
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Output/Baseplate Isolation: |
100 Vdc |
MIL-STD-704 meets normal and abnormal operation
MIL-STD-1275A with battery support
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| OUTPUT CHARACTERISTICS (TYPICAL) |
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ENVIRONMENTAL |
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| Set Point Accuracy: |
±1%, no load |
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Temperature: |
-55° to +85°C, |
| Load regulation: |
.02% |
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Baseplate; -60° to |
| Line Regulation: |
.02% |
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+100°C, Storage |
| Ripple: |
1-3% typical; DC to 20 MHz |
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Altitude: |
to 70,000 feet |
| Trim Range: |
±10% |
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Shock: |
MIL-STD-901C, Grade A |
| Remote Sense |
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impact shock |
| Compensation: |
0.5 V total |
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Vibration: |
MIL-E-5400, curve IVA, |
| OVP (non shutdown |
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5Hz to 2000 Hz |
| auto recovery: |
130% typical; F.L. |
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Salt Spray: |
MIL-STD-810C, |
| Current Limit (auto |
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method 509, |
| recovery): |
130% of rated load typical |
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procedure 1 |
| Transient Response: |
200us, for 25% load changes |
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| Temperature Drift: |
.02% / °C |
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| Efficiency: |
80% typical |
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Product Drawing
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Model Specifications
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Mechanical
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Single Outputs
(non-standards upon request)
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| Part No. |
Output
Voltage |
Output
Current |
| MB3A 100/3.3 |
3.3V |
30A |
| MB3A 100/5 |
5V |
20A |
| MB3A 100/12 |
12V |
8.3A |
| MB3A 100/15 |
15V |
6.6A |
| MB3A 100/24 |
24V |
4.2A |
| MB3A 100/28 |
28V |
3.6A |
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Weight: 7 oz. typical
Size: 2.3 x 2.4 x .5
(Dimensions are in inches.)
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Ordering Information
| MB3 |
A |
100 |
3.3 |
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| Model |
Input Voltage |
Power |
Output Voltage |
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A = 28 VDC |
(in watts) |
(in volts) |
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B = 48 Vdc |
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C = 300 Vdc |
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