Part Audit Review

Worked for 4 mins 43 sec

Created a project doc

CQB150W-24S12 Part Audit

Authoritative datasheet: Cincon CQB150W Series Datasheet Official product page: Cincon CQB150W

Audit complete. The 8-pin electrical mapping and main quarter-brick geometry match the Cincon datasheet, but footprint drills for power pins 4 and 8 are critically undersized—1.22 mm holes for 1.50 mm pins. Metadata also incorrectly classifies the converter as a Logic/AND IC, and pin types/descriptions need cleanup.

The existing Datasheet URL was preserved because it was already populated; the official Cincon datasheet was used for verification. Full findings are in CQB150W-24S12 Part Audit. An internal part-quality report was filed.

adrian95

Fix the footprint drill and pad sizes for pins 4 and 8 per the Cincon datasheet.

Thought for 2 mins 6 sec

flux

The datasheet specifies Ø1.50 mm device pins but no recommended land pattern. I’m sizing pins 4 and 8 to Ø1.80 mm finished holes with Ø3.00 mm copper pads, providing 0.30 mm diametral assembly clearance and a 0.60 mm annular ring.

Worked for 14 sec

flux

Fixed and verified footprint pins 4 (-V_OUTPUT) and 8 (+V_OUTPUT):

Finished drill: Ø1.80 mm
Copper pad: Ø3.00 mm
Annular ring: 0.60 mm
Pad type: plated through-hole, circular

These dimensions accommodate the datasheet’s Ø1.50 mm power pins with practical assembly clearance.

Files

Pins

Symbol

Layout

3D View

CQB150W-24S12 Part Audit

Sources

Authoritative datasheet: Cincon CQB150W Series Datasheet
Official product page: Cincon CQB150W
The part already had a Datasheet URL set to a Datasheet Archive mirror. Per the request, the property was not changed because it was not empty. The official Cincon URL above is preferable for a future metadata cleanup.

Current metadata review

Table

Field	Current value	Datasheet cross-check	Status
MPN	CQB150W-24S12	Exact match	Pass
Manufacturer	Cincon	Exact match	Pass
Mount	Through Hole	Through-hole quarter-brick module	Pass
Package	Module	Quarter-brick, 57.9 × 36.8 × 12.7 mm	Partially complete
Description	150 W isolated quarter-brick, 9–36 V input, 12 V/12.5 A output, up to 92%, protections and railway-related compliance	Consistent with official data	Pass
Terminal count	10	Datasheet defines 8 electrical pins and 2 mechanical mounting inserts	Misleading
Part Type	Integrated Circuits	This is an isolated DC/DC converter / power module	Mismatch
IC subtype	Logic	Not a logic IC	Mismatch
Logic function	AND	Not applicable	Mismatch
Designator prefix	PS	Reasonable for a power-supply module	Pass
Datasheet URL	Datasheet Archive mirror	A URL exists, but it is not the official manufacturer URL	Advisory

Key specifications

Isolated regulated DC/DC converter, 150 W maximum
24 V nominal input, 9–36 VDC operating input range
12 VDC, 12.5 A maximum single output
0 A minimum load
10 mA no-load input current
7.02 A full-load input current (datasheet table conditions)
91% minimum / 92% typical efficiency in the model table
12,500 µF maximum external capacitive load
2250 VDC minimum input/output, input/case, and output/case isolation
300 kHz typical switching frequency
−40°C to +105°C operating case temperature
±10% output trim range
Positive-logic remote On/Off for the base MPN
Quarter-brick body: 57.9 × 36.8 × 12.7 mm
Standard version uses two M3 × 0.5 threaded mounting inserts

Schematic symbol and pins

The current electrical pin numbering and names match the rendered official mechanical drawing:

Table

Pin	Datasheet function	Current symbol terminal	Status
1	+V Input	+V_INPUT	Pass
2	On/Off	ON/OFF	Pass
3	−V Input	−V_INPUT	Pass
4	−V Output	−V_OUTPUT	Pass
5	−Sense	−SENSE	Pass
6	Trim	TRIM	Pass
7	+Sense	+SENSE	Pass
8	+V Output	+V_OUTPUT	Pass

The two additional terminals, MH1 and MH2, represent mechanical mounting inserts rather than electrical pins. Counting them as terminals produces the published count of 10, but the part should clearly distinguish 8 electrical pins + 2 mechanical features.

Symbol metadata issues

Every terminal is set to Pin Type: Unspecified.
No substantive pin-description text is present.
Suggested electrical types:
- Pins 1 and 3: Power In
- Pins 4 and 8: Power Out
- Pin 2: Input / control
- Pins 5, 6, and 7: Signal or Passive, with descriptions explaining remote sense and trim
- MH1/MH2: Mechanical/non-electrical rather than normal signal terminals

Footprint cross-check

Geometry that matches

Electrical pin positions match the official bottom-view quarter-brick pattern:
- Pins 1–3 on one column at 7.62 mm spacing
- Pins 4–8 on the opposite column at 50.80 mm horizontal separation
- Pins 4–8 use 3.81 mm vertical spacing
Body outline is approximately 57.9 × 36.8 mm.
The two mounting-feature locations are consistent with the official drawing.
Input/control/sense/trim pin hole sizes are larger than their nominal 1.02 mm pin diameter and are mechanically plausible.

Critical footprint mismatch

The datasheet specifies pins 4 and 8 as Ø1.50 mm power pins.
The footprint uses a 1.22 mm drill for pins 4 and 8.
A 1.50 mm pin cannot fit through a 1.22 mm finished hole. This is a critical manufacturability error and the footprint should not be used as-is.
The copper pad diameter for pins 4 and 8 is only 1.83 mm. After increasing the drill to a practical value above 1.50 mm, the pad must also be enlarged to retain a manufacturable annular ring.

Mounting-feature caution

The standard MPN uses threaded M3 × 0.5 inserts on the module. The footprint models these as 3.7 mm plated through-hole pads and exposes them as MH1/MH2 terminals. Confirm the intended assembly method and whether these PCB features should be non-plated clearance holes, plated mechanical holes, or omitted. They are not electrical pins in the Cincon pin table.

Overall result

Electrical pin mapping and the main quarter-brick geometry are correct, but the part is not production-ready. The undersized drills on power pins 4 and 8 are a hard mechanical failure. Metadata classification and pin typing/descriptions also need cleanup. An internal Flux part-quality report was filed for the footprint and classification issues.

Sources
Current metadata review
Key specifications
Schematic symbol and pins
Symbol metadata issues
Footprint cross-check
Geometry that matches
Critical footprint mismatch
Mounting-feature caution
Overall result