1W isolated DC-DC converter Fixed input voltage, unregulated single output
Description
B_XT-1WR2 series are specially designed for applications where an isolated voltage is required in a distributed power supply system.They are suitable for
1. Where the voltage of the input power supply is stable(voltage variation:±10%Vin);
2. Where isolation between input and output is necessary(isolation voltage≤1500VDC);
3. Where the output voltage regulation and the ripple&noise of the output voltage is not strictly required;
4. Typical application:digit circuit condition;normal low-frequency artificial circuit condition;relay drive circuit condition, etc.
FEATURES
Continuous short-circuit protection
Operating ambient temperature range: -40℃ to +105℃
Compact SMD package
I/O isolation test voltage 1.5k VDC
Internal surface mounted design
No extra components required
Industry standard pin-out
IEC62368, UL60950, EN60950 approved
Specifications
| Selection Guide | ||||||
|
Certification |
Part No. |
Input Voltage (VDC) | Output | Full Load Efficiency (%) Min./Typ. | Capacitive Load(µF) Max. | |
| Nominal (Range) | Voltage (VDC) | Current(mA) Max./Min. | ||||
| CE | B0303XT-1WR2 |
3.3 (2.97-3.63) |
3.3 | 303/30 | 65/69 |
220 |
| UL/CE | B0305XT-1WR2 | 5 | 200/20 | 70/74 | ||
| -- | B0309XT-1WR2 | 9 | 111/12 | 76/80 | ||
|
CE |
B0312XT-1WR2 | 12 | 84/9 | 76/80 | ||
| B0315XT-1WR2 | 15 | 67/7 | 76/80 | |||
| B0324XT-1WR2 | 24 | 42/4 | 76/80 | |||
|
UL/CE |
B0503XT-1WR2 |
5 (4.5-5.5) |
3.3 | 303/30 | 68/72 | |
| B0505XT-1WR2 | 5 | 200/20 | 76/80 | |||
| B0506XT-1WR2 | 6 | 167/17 | 76/80 | |||
| B0509XT-1WR2 | 9 | 111/12 | 76/80 | |||
| B0512XT-1WR2 | 12 | 84/9 | 76/80 | |||
| B0515XT-1WR2 | 15 | 67/7 | 76/80 | |||
| B0524XT-1WR2 | 24 | 42/4 | 76/80 | |||
| B1203XT-1WR2 |
12 (10.8-13.2) |
3.3 | 303/30 | 68/72 | ||
| B1205XT-1WR2 | 5 | 200/20 | 76/80 | |||
| B1209XT-1WR2 | 9 | 111/12 | 76/80 | |||
| B1212XT-1WR2 | 12 | 84/9 | 76/80 | |||
| B1215XT-1WR2 | 15 | 67/7 | 76/80 | |||
| CE | B1224XT-1WR2 | 24 | 42/4 | 76/80 | ||
| B1505XT-1WR2 |
15 (13.5-16.5) |
5 | 200/20 | 76/80 | ||
| -- | B1509XT-1WR2 | 9 | 111/12 | 76/80 | ||
| CE | B1515XT-1WR2 | 15 | 67/7 | 76/80 | ||
| -- | B2403XT-1WR2 |
24 (21.6-26.4) |
3.3 | 303/30 | 67/71 | |
| UL/CE | B2405XT-1WR2 | 5 | 200/20 | 76/80 | ||
| UL/CE/CB | B2409XT-1WR2 | 9 | 111/12 | 76/80 | ||
| CE | B2412XT-1WR2 | 12 | 84/9 | 76/80 | ||
|
UL/CE |
B2415XT-1WR2 | 15 | 67/7 | 76/80 | ||
| B2424XT-1WR2 | 24 | 42/4 | 76/80 | |||
| Input Specifications | |||||
| Item | Operating Conditions | Min. | Typ. | Max. | Unit |
|
Input Current (full load / no-load) |
3.3V input | -- | 404/25 | --/70 |
mA |
| 5V input | -- | 250/20 | --/60 | ||
| 12V input | -- | 104/15 | --/50 | ||
| 15V input | -- | 82/10 | --/35 | ||
| 24V input | -- | 52/7 | --/30 | ||
| Reflected Ripple Current | -- | 15 | -- | mA | |
|
Surge Voltage (1sec. max.) |
3.3V input | -0.7 | -- | 5 |
VDC |
| 5V input | -0.7 | -- | 9 | ||
| 12V input | -0.7 | -- | 18 | ||
| 15V input | -0.7 | -- | 21 | ||
| 24V input | -0.7 | -- | 30 | ||
| Input Filter | Capacitance filters | ||||
| Hot Plug | Unavailable | ||||
| Output Specifications | ||||||
| Item | Operating Conditions | Min. | Typ. | Max. | Unit | |
| Voltage Accuracy | See output regulation curve (Fig. 1) | |||||
| Linear Regulation | Input voltage change: ±1% | 3.3VDC output | -- | -- | ±1.5 | -- |
| Others | -- | -- | ±1.2 | |||
|
Load Regulation |
10%-100% load |
3.3VDC output | -- | 18 | -- |
% |
| 5VDC output | -- | 12 | -- | |||
| 6VDC output | -- | 10 | -- | |||
| 9VDC output | -- | 8 | -- | |||
| 12VDC output | -- | 7 | -- | |||
| 15VDC output | -- | 6 | -- | |||
| 24VDC output | -- | 5 | -- | |||
| Ripple & Noise* | 20MHz bandwidth | -- | 60 | 150 | mVp-p | |
| Temperature Coefficient | Full load | -- | -- | ±0.03 | %/℃ | |
| Short-circuit Protection** | B03xxXT-1WR2/B24xxXT-1WR2/ B0524XT-1WR2 | -- | -- | 1 | s | |
| Others | Continuous, self-recovery | |||||
|
Notes: * The “parallel cable” method is used for Ripple and Noise test, please refer to DC-DC Converter Application Notes for specific information; ** Supply voltage must be discontinued at the end of short-circuit duration for B03xxXT-1WR2 series, B24xxXT-1WR2 series, and B0524XT-1WR2 model. |
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| Mechanical Specifications | |
| Case Material | Black epoxy resin; flame-retardant and heat-resistant (UL94 V-0) |
| Dimensions | 12.70 x 11.20 x 7.25 mm |
| Weight | 1.6g(Typ.) |
| Cooling Method | Free air convection |
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