I assume you mean the Dell D220p‑01 laptop power adapter (barrel plug) — here’s the pinout for its 7.4×5.0 mm DC barrel with center pin (typical for Dell laptops):
If you meant a different D220p‑01 part (e.g., an internal PSU board or multi‑pin connector), tell me which connector (photo or part label) and I’ll give the detailed pinout.
Related searches (suggested): Dell D220p-01 power adapter pinout, Dell laptop barrel pinout 7.4x5.0mm, Dell charger center pin voltage
| Rail | Voltage Tolerance | Max Current | Notes | |------|------------------|-------------|-------| | +5VSB | ±5% (4.75–5.25V) | 2A | Standby rail. Good for powering microcontrollers or small LEDs. | | +3.3V | ±5% (3.14–3.47V) | 10A | Shared with +5V regulation (mag-amp design). | | +5V | ±5% | 14A | Main rail for older drives and logic. | | +12V | ±10% (10.8–13.2V) | 12A (peak 15A) | The weakest point – not suitable for modern GPUs. | | -12V | ±10% | 0.3A | For RS-232 serial ports. | | PW-OK | High = 3–5V | – | Gray wire on secondary connector goes high 200ms after PS_ON# low. | Dell D220p 01 Power Supply Pinout 2
Total combined power: 200W max. Do not exceed 12A on the 12V rail if other rails are heavily loaded.
The main connector is a Molex 39-01-2200 or equivalent 20-pin housing with square and round pins. Always view the connector from the wire-entry side (back) with the clip latch facing UP.
Here is the complete pinout for revision 2 of the D220P-01. (Revision 1 had slight differences in the sense wire – this is specifically for the D220P-01 REV:02). I assume you mean the Dell D220p‑01 laptop
| Pin | Wire Color (Typical) | Signal | Function & Notes | | :--- | :--- | :--- | :--- | | 1 | Black | Ground | Main ground return. | | 2 | Black | Ground | Main ground return. | | 3 | White | +5V | 5V rail (up to 10A). | | 4 | White | +5V | 5V rail. | | 5 | White | +5V | 5V rail. | | 6 | Blue/White | +12VB | Secondary 12V rail (for drives/aux). | | 7 | Red/Black | +5VSB | Standby voltage (5V @ 1.5A). | | 8 | Gray | PWR_OK | Power Good signal (goes high when rails stable). | | 9 | Yellow/White | +12VA | Primary 12V rail (for CPU/motherboard). | | 10 | Yellow/White | +12VA | Primary 12V rail. | | 11 | Brown | +3.3V Sense | Remote sense for 3.3V regulation. Do not connect to ground. | | 12 | Purple | +3.3V | 3.3V rail (up to 10A). | | 13 | Purple | +3.3V | 3.3V rail. | | 14 | Purple | +3.3V | 3.3V rail. | | 15 | Black | Ground | Main ground return. | | 16 | Black | Ground | Main ground return. | | 17 | Black | Ground | Main ground return. | | 18 | Green | PS_ON# | Power supply on (active low – short to ground to start). | | 19 | Black | Ground | Main ground return. | | 20 | White/Black | +5V | 5V rail (final feed). |
If you are converting this PSU for hobbyist use (powering LED strips, charging batteries, testing motors), here is the correct way to access all outputs:
Never run the D220P-01 without at least some load on the +5V rail (e.g., a 5W 2Ω resistor or a 12V car bulb on +5V/GND). Otherwise, the +12V voltage may drift above 13V and trigger overvoltage shutdown. Center pin (male, inner contact): +19
The Dell D220p 01 PSU is a 220-watt power supply designed for efficiency and reliability. It features an 80 PLUS certification, indicating that it meets certain standards for efficiency. The PSU has multiple connectors for powering different components of a computer system, including the motherboard, hard drives, and graphics cards.
A: Some revisions use White instead of Gray for PW-OK. Verify with a multimeter: It should be 0V when PSU is off, ~5V after PS_ON# is pulled low and rails stabilize.