| Part Number: | ULO | - | CD448 | - | S | 60 | 8 | B | V |
|---|---|---|---|---|---|---|---|---|---|
| Explanation: |
Prefix |
Model CD448 - 2.54mm card edge socket; five ordering fields |
Style or Type S - Socket; CD448 only |
Contacts 60 - Sixty contacts; CD448 only |
Plating 8 - Full gold flash; CD448 |
Colour B - Black; CD448 |
Mounting V - Vertical; CD448 |
CD452A and CD448 have flanged card edge socket bodies with two opposing contact rows. Choose the longitudinal contact pitch and termination style together; the two models have different contact counts and mounting dimensions.
| Model | Longitudinal pitch | Total contacts | Termination | Housing |
|---|---|---|---|---|
| ULO-CD452A | 3.96mm | 20, 24, 30, 36, 44, 56, 72 | Solder-eye or vertical PCB terminal | PBT |
| ULO-CD448 | 2.54mm | 60 | Vertical PCB terminal | Thermoplastic |
| Characteristic | CD452A | CD448 |
|---|---|---|
| Rated current | 1A | Unspecified |
| Contact impedance | ≤30mΩ | ≤30mΩ |
| Insulation impedance | 1000MΩ | 1000MΩ |
| Withstand test | 500VAC for 1 minute | 500VAC for 1 minute |
| Operating temperature | -20°C to +105°C | 0°C to +85°C |
| Storage temperature | -20°C to +70°C | -20°C to +70°C |
| Insulating material group | I | I |
| Flammability classification | UL94V-0 | UL94V-0 |
| Contact material | Copper alloy | Copper alloy |
| Continuous operating-voltage rating | Unspecified | Unspecified |
The 500VAC value is a one-minute withstand test. The 1000MΩ insulation value has no separately stated minimum or maximum qualifier.
| Field | Code or choice |
|---|---|
| Terminal style | 009: solder-eye type; 029: vertical PCB type |
| Total contacts | 20, 24, 30, 36, 44, 56, 72 |

The drawing identifies count-dependent longitudinal dimensions A–F but does not provide their numeric table. Use the corresponding count-specific outline when establishing overall length or mounting-hole spacing. The illustrated mounting holes are Ø3.5mm.
| Feature | Drawing reference |
|---|---|
| Contact pitch | 3.96mm |
| Body width | 11.0mm |
| Body height reference | 11.8mm |
| Lower body reference | 6.4mm |
| Solder-eye detail | 2.4mm terminal width; 1.0mm eye-width reference; 2.3mm vertical reference |
| Vertical PCB terminal detail | 0.7mm width; 7.1mm projection reference |
| Section X–X | 2.0mm, 6.5mm, 0.6mm and 3.9mm section references |
The X–X references describe the illustrated section and do not independently specify an allowable mating-board thickness range.

| Field | Code or choice |
|---|---|
| Connector type | S: socket |
| Contacts | 60: 60 contacts |
| Contact plating | 8: full gold flash; 0: selective gold flash |
| Housing colour | B: black; L: blue |
| Mounting type | V: vertical |

| Feature | Dimension |
|---|---|
| Overall length | 125.7mm |
| Mounting-hole centre distance | 116.5mm |
| Mounting holes | 2 × Ø3.5mm |
| Central body length | 83.0mm |
| Flange width | 8.0mm |
| Body width | 9.4mm |
| Body height | 15.2mm |
| Flange height reference | 4.0mm |
| PCB pin projection | 4.0mm |
| Contact pitch | 2.54mm |
| PCB terminal-row spacing | 5.08mm |
| Terminal cross-section references | 0.6mm × 0.30mm |
The 2.54mm contact pitch runs along the socket; 5.08mm is the transverse spacing between PCB terminal rows.
