Does this apply to my model?
Dimensions are catalog values; hole patterns and connector positions are checked per model.
Design guide 01 / enclosure fit
Six envelopes. One true scale.
The board you choose is the space you give it. Compare the six catalog envelopes at one scale, then check mounting, connector height and heatsink clearance.
170 × 170155 × 117146 × 102120 × 120100 × 100100 × 72mm
True-scale outlines
The size difference is the argument.
All six outlines are drawn at the same scale. Dimensions are catalog values; 28 models sit inside these six envelopes.
Enclosure check / four measurements
The envelope is not the fit.
Dimensions decide the footprint; four checks decide whether the board goes in.
- Mounting holesCheck the pattern per model.
- Connector heightMeasure the tallest header.
- Cable exitLeave a bend radius.
- Heatsink clearanceBoard rating is not a case rating.
A 146 × 102 mm board with a 25 mm heatsink needs more internal depth: the outline is a footprint, not a clearance.
Six form factors
Compare on the deciding criteria.
| Form factor | Dimensions | DC input | Expansion | COM / LAN | Cooling | Models |
|---|---|---|---|---|---|---|
| 2.5-inch | 100 × 72 mm | 12 V | M.2 M-Key | 2 / 1 | Fan optional | 4 |
| 3.5-inch | 146 × 102 mm | 9–36 V | M.2 + SATA | up to 6 / 2 | Heatsink | 4 |
| 3.5-inch Wide | 155 × 117 mm | 9–36 V | M.2 + SATA + CAN | 6 / 2 | Heatsink | 2 |
| NANO-ITX | 120 × 120 mm | 9–36 V | M.2 per model | up to 5 / 4 | Fanless | 5 |
| NUC | 100 × 100 mm | 12–19 V | M.2 + SATA | USB / 1–2 LAN | Fanless | 6 |
| Mini-ITX | 170 × 170 mm | 12–19 / 24 V | PCIe on some models | up to 6 / 2 | Heatsink/fan | 7 |
Selection order / four cuts
Cut in this order, not in circles.
The envelope removes the most options first; temperature and lifecycle decide the final model.
Model shortlist / one per envelope
Six models, six envelopes.
AD742A
2.5-inch · 100 × 72 mm
MSK-TL5003AW
3.5-inch · 146 × 102 mm
AD600Z3AW
3.5-inch Wide · 155 × 117 mm
PNM-5210
NANO-ITX · 120 × 120 mm
AD600CA
NUC · 100 × 100 mm
ITX660B
Mini-ITX · 170 × 170 mm
One model per envelope; the catalog holds 28. Ask for the spec card before layout freeze.
Edge detail / what the outline hides
Four places the drawing stops.
Boundary / board vs system
What stays with the integrator.
The catalog gives the envelope and the board rating. The enclosure, airflow path and finished-system validation stay with the integrator.
- Mount patternVerified against the drawing
- Thermal testRun in the finished enclosure
- EMCTested at equipment level
- Shock and vibrationValidated with the mounting design
Before the shortlist
Three questions the table cannot settle.
Is the protection level documented?
No protection level is stated on the spec cards; confirm it before design freeze.
What must I validate in my enclosure?
Hole pattern, connector height, cable exit, heatsink clearance and enclosure temperature.
Next step / model shortlist
Send the enclosure and the I/O count.
Send the internal envelope, connector height and operating range for the closest model. Quote within 24–48 h.
