🔋💻 Toshiba 19V 90W Laptop Charger
 
(19V 4.74A AC Adapter • 90W • 5.5 mm × 2.5 mm Barrel Connector • No Center Pin)

This versatile AC adapter delivers 90W of regulated DC power to Toshiba laptops using the 5.5 mm × 2.5 mm barrel connector. It was Toshiba’s most widely deployed charger, spanning consumer, business, and multimedia lines.
 
🔧 Charger Form
Input: 100–240V AC, 50/60Hz
Output: 19V DC, 4.74A (90W)
Connector: 5.5 mm outer / 2.5 mm inner barrel, no center pin
Inline power brick with detachable AC cord
Often labeled as PA‑1900‑05, PA‑1900‑24, PA‑1900‑32, or equivalent
 
🖥️ Compatible Devices
🟦 Satellite Series
A‑Series: A200, A205, A210, A215, A300, A305, A350, A355
C‑Series: C650, C655, C850, C850D, C855, C870, C875
L‑Series: L300, L305, L450, L455, L500, L505, L600, L630, L640, L645, L650, L655, L670, L675, L740, L745, L750, L755, L770, L775, L840, L850, L855
M‑Series: M100, M105, M200, M205, M300, M305
P‑Series: P200, P205, P300, P305, P500, P505
Pro Satellite: Pro L300, Pro L450, Pro L500, Pro L630
🟦 Tecra Series
Tecra A8, A9, A10, A11
Tecra M9, M10, M11
Tecra R10, R840, R850, R940, R950
Tecra S10, S11
🟦 Portege Series
Portege M400, M405, M700, M750
Portege R500, R600, R700, R830, R835, R930
🟦 Qosmio Series
Qosmio F40, F45, F50
Qosmio G30, G35, G40, G50
Qosmio X300, X305
 
✅ Common Uses
🔌 Powering Toshiba Satellite, Tecra, Portege, and Qosmio laptops
🧩 Replacing lost or damaged OEM 90W adapters
🏢 Standardizing spares for school or office Toshiba fleets
🎒 Keeping as a travel adapter for collectors
🧪 Testing Toshiba laptops with a known‑good 90W supply
 
🧠 Signal Format
⚡ Input: Universal AC (100–240V)
🔋 Output: Regulated 19V DC, 90W max
🔌 No center pin — relies on barrel contact only
🔁 Backward compatible with 65W Toshiba laptops (safe, charges faster)
 
⚠️ Things to Watch Out For
📉 Not suitable for Toshiba gaming notebooks requiring 120W–180W (e.g. Qosmio X500)
🔌 Connector must match — not interchangeable with slim‑tip or USB‑C
🧯 Avoid third‑party clones with poor contact — may cause intermittent charging
🌀 Excess heat or frayed cables can cause power dropouts
🧪 Always confirm laptop’s required wattage before swapping adapters
 
🛠️ Quick Tips for Beginners
🧭 Check underside of laptop or original charger for voltage and connector size
🔌 Use only with laptops rated for 19V and 5.5 mm × 2.5 mm input
🧪 If laptop reports “adapter not recognized,” inspect barrel contact and cable integrity
🧯 Label adapters clearly to avoid mix‑ups with higher‑wattage Toshiba chargers
🧵 Keep one at desk and one in travel bag for convenience