You can find various DC Power Supplies on Histest.com. From their appearances, there is no big difference between them, but through compare their specifications, you’ll figure out some prominent differences.Today, we will introduce the comparison of Mastech HY3003D DC Power Supply and Mastech HY3003D-3 DC Power Supply to all of you. Just have a look at the following comparison form, you’ll master the specifications of this two DC Power Supplies better,therefore help you select the correct DC Power Supply for your job.
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| Models | HY3003D | HY3003D-3 |
| Specifications | ||
| Power Mode | Linear | Linear |
| Input Voltage | 110V AC or 220V AC, 60Hz | |
| Output Available | Single | Triple |
| Output Voltage | 0-30V DC | 2x (0-30V DC) |
| Output Current | 0-3A DC | 2x (0-3A DC) |
| Output Additional | NO | DC 5V 3A Fixed |
| Power Max | 90W | 195W |
| Source Effect | CV<0.01%+1mV, CC<0.2% + 1mA | |
| Load Effect | CV <= 0.01% + 3mV, CC <= 0.2% + 3 mA | |
| Ripple & Noise | CV <= 0.5 mV RMS, CC <= 3 mA | |
| Cooling System | Fan (built-in) | Fan (built-in) |
| Features | ||
| Digits | 3 1/2 | 3 1/2 |
| Display Type | 2 LCD | 4 LCD |
| Accuracy (Volt) | ±1%±2digits | ±1%±2digits |
| Accuracy (Amp) | ±2%±2digits | ±2%±2digits |
| Constant Voltage | YES | YES |
| Constant Current | YES | YES |
| Protection | Short Circuit | Short Circuit |
| Resettable fuse | YES | YES |
| Environmental | 0 - 102 F (0 -40 C), relative humidity: <90% | |
| Other Features | ||
| Series Mode | NO | YES |
| Parallel Mode | NO | YES |
| Dimensions | ||
| Size | 11.5″ x 6.5″ x 5.5″ | 10.4″ x 6.5″ x 14.4″ |
| Weight | 13 lbs | 29 lbs |
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