Difference between HPULN categories
HPULN power supply comparison

HPULN PS's are categorized in following formats:
1. Category "Small": SD-HPULN
- Very compact size with only very limited heatsink area
- Maximum of 1,5 ampere, but only few 100mA recommended for last term operations with lowest difference between VDCin and VDCout possible
- Replacing onboard regulators while mounting the small HPULN into the enclosure
- Powering converters, opamps, clocks etc.
2. Category "Medium": MS-HPULN and MD-HPULN
- Compact size with a medium sized heatsink
- Up to 1,5 ampere (dual rail "D" version) and 3 ampere (single rail "S" version)
- Powering low to medium power hungry devices as main power supply
3. Category "Large": ALS-HPULN, ALD-HPULN, DLS-HPULN, SLS-HPULN and LSIB-HPULN
- Enhanced size with a larger heatsink and better cooling capability
- Larger number of LT3045 installed with the benefit of less noise
- Up to 5 ampere in sum
- Powering low to "larger" power hungry devices as a main power supply
4. Category "wall mount": AWS-HPULN
- Must be mounted on external heatsink
- Best heat dissipation due to large contact area
- CLC filter in its input for additional filtering high frequences
- Larger number of LT3045 installed with the benefit of less noise
- Up to 6 ampere
- Powering up to "larger" power hungry devices as a main power supply
Please note:
- Especially for the modules with an integrated heatsink use always the smallest secondary's VAC possible, in respect to enough voltage headroom under full load. Take a look into FAQ "Which transformer voltage should I choose?"
- Take a look into FAQ "How does the HPULN power supply operate at comfortable temperature?"