Bel Power Datasheet Audit
Worked for 3 mins 8 sec
Completed
- Set the canonical Datasheet URL to:
https://www.belfuse.com/media/datasheets/products/power-supplies/PRA100.pdf - Verified success: a subsequent
selfdatasheet query returned the official PDF’s pinout and mechanical data. - Corrected metadata:
- Manufacturer Name: Bel Power Solutions
- Part Type: Power Source
- Mount: Through Hole
- Package or Case Code: Module
- Preserved the existing symbol and footprint geometry because no unambiguous mismatch was found.
- Nominal input: 48 VDC
- Operating input: 16.5–74 VDC
- Output: 5 VDC, 20.0 A
- Maximum output power: 100 W
- Ripple/noise: 100 mVp-p maximum, measured over 5 Hz–20 MHz with 10 µF polymer and 1 µF ceramic capacitors
- Typical efficiency: 93.5%
- Output accuracy: ±1%
- Line regulation: ±0.2%
- Load regulation: ±0.2%
- Trim range: −20% / +10%
- Maximum capacitive load: 20,000 µF
- PWM frequency: 270–330 kHz, 300 kHz typical
- Isolation:
- Input–output: 3000 VDC for 1 minute
- Input–case: 1600 VDC for 1 minute
- Output–case: 1600 VDC for 1 minute
- Operating temperature: −40°C to +105°C, subject to derating
- Maximum case temperature: 110°C
- Protections: continuous auto-recovery short circuit, hiccup overcurrent, output overvoltage, and non-latching overtemperature shutdown
- Positive-logic ON/OFF:
- Off: 0–1.2 V
- On: open or 3.5–75 V
Table
| Pin | Official function | Current symbol | Type | Result |
|---|---|---|---|---|
| 1 | +Vin | +VIN | Input | Checked, acceptable |
| 2 | on/off | ON/OFF | Input | Checked, correct |
| 3 | −Vin | −VIN | Input | Checked, acceptable |
| 4 | −Vout | −VOUT | Output | Checked, correct |
| 5 | −Sense | −SENSE | Input | Checked, correct |
| 6 | Trim | TRIM | Passive | Checked, correct |
| 7 | +Sense | +SENSE | Input | Checked, correct |
| 8 | +Vout | +VOUT | Output | Checked, correct |
The datasheet’s pin table only supplies function names, not individual prose pin descriptions. Existing blank description fields were therefore not changed.
Footprint audit
- Package without baseplate: 62.2 × 26.6 × 12.7 mm
- Pin-column spacing: 50.80 mm
- Output-side intermediate spacing: 3.81 mm
- Main row spacing: 7.62 mm
- Existing footprint body: 62.2 × 26.6 mm
- Existing columns: x = −25.4 mm and +25.4 mm
- Existing pad coordinates and numbering match all eight datasheet locations.
- Pins 1, 3, 4, 8 use the larger power-terminal holes/pads.
- Pins 2, 5, 6, 7 use the smaller control/sense holes/pads.
- Footprint drills are 1.8 mm for nominal 1.5 mm power pins and 1.3 mm for nominal 1.0 mm signal pins, providing reasonable clearance.
- All pads are through-hole with copper on top and bottom; pad 1 is rectangular for orientation.
- Part Type was incorrectly
Circuit Protection Devices; corrected toPower Source. - The canonical part-project datasheet property was absent despite the library result displaying a URL; corrected and verified readable.
- Manufacturer, mount, and package metadata are now explicitly set and consistent with the official datasheet.
No unresolved blockers.
Worked for 55 sec
Reviewed and verified the part against Bel’s official PRA100 datasheet; the canonical Datasheet URL is now set to
https://www.belfuse.com/media/datasheets/products/power-supplies/PRA100.pdf. The 8-pin symbol and through-hole footprint match the datasheet pinout and 1/8-brick geometry: 48 V nominal input, 16.5–74 V range, 5 V/20 A output, 100 W, 93.5% typical efficiency, and 3 kVDC isolation.Mismatch corrected: Part Type was incorrectly classified as “Circuit Protection Devices”; it was changed to “Power Source.” Manufacturer, through-hole mount, Module package, pad numbering, drill sizes, and body dimensions are consistent; no symbol or footprint geometry changes were required.
Audit and document
Run part review
Create verification note
Check BOM metadata
Verify 3D alignment
